K3MAFA224VACVDC

**Frequency/Rate Meter K3MA-F** 

CSM_K3MA-F_DS_E_14_1 

## **Highly Visible LCD Display with 2-color (Red and Green) LEDs** 

- Contact, NPN, PNP, or voltage pulse input. 

- Front-panel key operation for easy setting. 

- Average processing function suppresses flicker. 

- Includes scaling, auto-zero time, startup compensation time functions. 

- Easy confirmation of max/min display. 

- Short 80-mm depth (measured from edge of face plate). 

- Finger protective cover (standard equipment) guards against electric shock. 

- Water- and dust-proof NEMA4X (IP66 equivalent) front panel. 

- Recognized to U.S. and Canadian requirements under the Component Recognition Program of UL. 

For the most recent information on models that have been certified for safety standards, refer to your OMRON website. 

- CE marking. 

- Built-in external power supply (12 VDC (±10%), 0 to 40 mA). 

   - Refer to _Safety Precautions for All Digital Panel Meters_ . 

## **Model Number Structure** 

## ■ **Model Number Legend** 

: **K3MA-F-** — @ Eo **1 2 3** 

**1. Input Type** 

   - F: Rotary pulse 

**2. Output Type** None: No output 

   **3. Supply Voltage** 100-240VAC: 100 to 240 VAC 

      - 24VAC/VDC: 24 VAC/VDC 

- A2: 2 relay contact outputs (SPST-NO) 

## **Orderin Information g** 

## ■ **List of Models** 

|■**List of Models**||||
|---|---|---|---|
|**Input type**|**Supply voltage**|**Output**|**Model**|
|Rotary pulse|100 to 240 VAC|None|K3MA-F 100-240VAC|
|||2 relaycontact outputs (SPST-NO)|K3MA-F-A2 100-240VAC|
||24 VAC/VDC|None|K3MA-F 24VAC/VDC|
|||2 relaycontact outputs (SPST-NO)|K3MA-F-A2 24VAC/VDC|



**1** 

**K3MA-F** 

## ■ **Accessories (Order Separately)** 

|**Name**|**Shape**|**Model**|
|---|---|---|
|Splash-proof Soft Cover||K32-49SC|
|Hard Cover||K32-49HC|
|Watertight Cover||Y92A-49N|
|Rubber Packing||K32-P1|



## **S ecifications p** 

## ■ **Ratings** 

|**Model**|**K3MA-F 100-240VDC, K3MA-F-A2 100-240VAC**|**K3MA-F 24VAC/VDC, K3MA-F-A2 24VAC/VDC**|
|---|---|---|
|**Supply voltage**|100 to 240 VAC|24 VAC/VDC|
|**Operating voltage range**|85% to 110% of the rated supplyvoltage||
|**Power consumption**<br>**(under maximum load)**|6 VA max.|4.5 VA max. (24 VAC)<br>4.5 W max. (24 VDC)|
|**Externalpower supply**|12 VDC (±10%), 0 to 40 mA||
|**Insulation resistance**|20 MΩmin. (at 500 VDC) between external terminal and case.<br>Insulation provided between inputs, outputs, and power supply.||
|**Dielectric strength**|2,000 VAC for 1 min between external terminal and case.<br>Insulationprovided between inputs, outputs, andpower supply.||
|**Noise immunity**|±1,500 V on power supply terminals in normal or com-<br>mon mode.<br>±1μs, or 100 ns for square-wave noise with 1 ns.|±480 V on power supply terminals in normal mode.<br>±1,500 V in common mode.<br>±1μs, or 100 ns for square-wave noise with 1 ns.|
|**Vibration resistance**|Vibration: 10 to 55 Hz, Acceleration: 50 m/s2<br>5 min each in X, Y, and Z directions for 10 sweeps.||
|**Shock resistance**|150 m/s2(100 m/s2for relaycontact outputs) 3 times each on 3 axes, 6 directions.||
|**Ambient temperature**|Operating:−10°C to 55°C (with no condensation or icing)<br>Storage:<br>−25°C to 65°C (with no condensation or icing)||
|**Approved safety standards**|UL61010-1, CSA C22.2 No.61010-1-04, conforms to EN61010-1 (Pollution degree 2/overvoltage category II)<br>Conforms to VDE0106/P100 (finger protection)||
|**EMC**|(EMI)<br>EN61326-1<br>Industrial electromagnetic environment<br>Emission Enclosure:<br>CISPR 11 Group 1 class A: CISRP16-1/-2<br>Emission AC Mains:<br>CISPR 11 Group 1 class A: CISRP16-1/-2<br>(EMS)<br>EN61326-1<br>Industrial electromagnetic environment<br>Immunity ESD:<br>EN61000-4-2:<br>4 kV contact discharge<br>8 kV air discharge<br>Immunity RF-interference:<br>EN61000-4-3:<br>10 V/m (amplitude-modulated, 80 MHz to 1 GHz)<br>Electrical Fast Transient Noise:<br>EN61000-4-4:<br>2 kV (power line)<br>Immunity Burst Noise:<br>1 kV line to line (I/O signal line)<br>Immunity Surge:<br>EN61000-4-5:<br>1 kV (power line)<br>2 kV line to ground (power line)<br>Immunity Conducted Disturbance:<br>EN61000-4-6:<br>3 V (0.15 to 80 MHz)<br>ImmunityVoltage Dip/Interrupting:<br>EN61000-4-11: 0.5 cycle, 0, 180°,100%(rated voltage)||
|**Weight**|Approx. 220g||



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**2** 

**K3MA-F** 

## ■ **Characteristics** 

|■**Characteristics**||
|---|---|
|**Input signal**|No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.)<br>Voltage pulse (5 kHz max., ON/OFF pulse width: 90μs min., ON voltage: 4.5 to 30 V/OFF voltage:<br>0 to 2 V)<br>Open collector (5 kHz max., ON/OFF pulse width 90μs min.)<br>**Connectable Sensors**<br>ON residual voltage:<br>2.5 V max.<br>OFF leakage current:<br>0.1 mA max.<br>Load current:<br>Must have switching capacity of 15 mA min.<br>Must be able to dependablyswitch a load current of 5 mA max.|
|**Measuring accuracy**|±0.1%FS±1 digit (at 23±5°C)|
|**Measurement method**|Cycle measurement|
|**Max. displayed digits**|5 digits (−19999 to 99999)|
|**Display**|7-segment digital display, Character height: 14.2 mm|
|**Polarity display**|“−” is displayed automaticallywith a negative input signal.|
|**Zero display**|Leadingzeros are not displayed.|
|**Scaling function**|Programmable with front-panel key inputs (range of display:−19999 to 99999).<br>The decimalpointposition can be set as desired.|
|**Hold function**|Max hold(maximum value), Min hold(minimum value)|
|**Hysteresis setting**|Programmable with front-panel keyinputs(0001 to 9999).|
|**Other functions**|Scaling teach function<br>Display color change (green (red), green, red (green), red)<br>OUT type change (upper limit, lower limit, upper/lower limit)<br>Average processing (simple average OFF/2/4/8 operations)<br>Auto-zero time<br>Startup compensation time<br>Setting change lockout<br>Parameter initialization<br>Displayauto-return time|
|**Output**|Relays: 2 SPST-NO|
|**Delay in comparative outputs**|750 ms max.|
|**Degree of protection**|Front panel: NEMA4X for indoor use (equivalent to IP66)<br>Rear case: IEC standard IP20<br>Terminals: IEC standard IP00 + fingerprotection(VDE0106/100)|
|**Memory protection**|Non-volatile memory(EEPROM) (possible to rewrite 100,000 times) (with terminal cover attached)|



## ■ **Measuring Ranges** 

## **No-voltage Contact/Open Collector Inputs** 

|**Input**|**Measuring range**|**Measuring accuracy**|**Displayable range**|
|---|---|---|---|
|No-voltage contact (30 Hz max.) with<br>ON/OFFpulse width of 15 ms min.|0.05 to 30.00 Hz|±0.1% FS±1 digit max.<br>(at 23±5°C)|–19999 to 99999<br>(with scaling function)|
|Open collector (5 kHz max.) with<br>ON/OFFpulse width of 90μs min.|0.05 to 5000 Hz|||



## ■ **Input/Output Ratings** 

## **Relay Contact Output** 

|**Relay Contact Output**|||
|---|---|---|
|**Item**|**Resistive load(cos**φ**= 1)**|**Inductive load(cos**φ**= 0.4, L/R = 7 ms)**|
|**Rated load(UL ratings)**|5 A at 250 VAC, 5 A at 30 VDC|1 A at 250 VAC, 1 A at 30 VDC|
|**Min. permissible load**<br>**(P level, reference value)**|10 mA at 5 VDC||
|**Mechanical life**|5,000,000 times min.||
|**Electrical life**|100,000 times min.||



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**3** 

**K3MA-F** 

## **Connections** 

## ■ **Terminal Arrangement** 

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Models with<br>Power  A1 comparative  E1<br>supply Output  output<br>terminals A2 OUT1 E2<br>100- to 240-VAC type or  OUT2<br>24-VAC/VDC type E3<br>(No polarity for 24-VDC<br>Input  connection.) E4<br>terminals<br>+<br>B5 E5<br>12 V (±10%)<br>0 to 40 mA<br>B6 E6<br>External power supply −<br>**----- End of picture text -----**<br>


**Note:** Refer to _Input Circuits_ on page 5. 

|**Terminal No.**|**Name**|**Description**|
|---|---|---|
|**A1**-**A2**|Operation power|Connects the operation power supply.|
|**E4  ,   E6**-**E5**|Pulse input|No-voltage contact/open collector input|
|**E1  ,   E2**-**E3**|Outputs|Outputs the relay outputs.|
|**B5**-**B6**|External power supply|Use as the power supply for sensors.|



## ■ **Block Diagram** 

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Key<br>Input Input circuit<br>Micro-<br>computer Display<br>EEP ROM Output circuit X Contact output(See note.)<br>5 V 12 V<br>Constant voltage circuit<br>Power supply circuit<br>Note:  Relay output models only.<br>12 V<br>200 Ω<br>1 kΩ<br>Pulse<br>E4<br>detection<br>NPN, contact input NPN circuit<br>E5 12 V<br>Voltage<br>PNP, voltage pulse input E6 detection<br>Voltage pulse circuit<br>PNP<br>10 kΩ<br>+ B5<br>The negative pole of the sensor power<br>supply and COM are connected<br>− B6 internally.<br>**----- End of picture text -----**<br>


## ■ **Input Circuits** 

## **Pulse Input** 

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**4** 

**K3MA-F** 

## **O eration p** 

## ■ **Main Functions** 

## **Input Types and Ranges** 

|**Frequency range**<br>**(setting parameter)**|**Function**|**Input range (setting parameters)**|**Setting range**|
|---|---|---|---|
|Pulse frequency selection<br>(p-fre)<br>|Selects pulse input signal.|0.05 to 30.00 Hz<br>(30)|Displayable from−19999 to 99999<br>with scaling function.<br>The position of the decimal point<br>can be set as desired.|
|||0 to 5 kHz<br>(5k)||



## **Pulse Frequency Selection** 

|**Parameter**|**Setting value**|**Meaning**|
|---|---|---|
|p-fre|30|0.05 to 30.00 Hz<br>measurement range|
||5k|0 to 5 kHz measure-<br>ment range|



**Note:** The default value is “0 to 5 kHz ( 5k ).” 

## **Scaling** 

When the desired display value is set for a corresponding input, the value will be displayed on a line between two points determining the zero point. 

|**Parameter**|**Setting value**|**Meaning**||**Parameter**|**Setting value**|**Meaning**|
|---|---|---|---|---|---|---|
|inp|0to99999|Input value fordsp||dp|%.%%%%|Displayfour digits after decimal point|
|dsp|-19999to99999|Displayvalue forinp|||%%.%%%|Displaythree digits after decimal point|
||||||%%%.%%|Displaytwo digits after decimal point|
||||||%%%%.%|Displayone digit after decimal point|
||||||%%%%%|No decimal point|



**Note:** The initial value will change depending on the pulse frequency selection. 

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**----- Start of picture text -----**<br>
Display value<br>DISPLAY<br>INPUT Input value<br>Teaching with actual values is possible.<br>**----- End of picture text -----**<br>


The decimal point can be optionally displayed. When displaying the decimal point, consider the number of digits to follow the decimal point prior to setting the scaling display value. If p-fre is set to 30, the initial setting for the decimal display will be 000.00. 

Instead of setting by inputting with the           Up Key and            Shift Key,  current values can be input as scaling input values for teaching. This is useful for making settings while checking the operation status of the K3MA-F. 

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**5** 

**K3MA-F** 

## **Convenient Functions** 

## Scaling Teach 

The parameter ( inp ) for the K3MA-F’s initial setting level can be set using actual input values with the teaching function. After displaying the parameter, the actual input settings can be made with the following operation. 

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**----- Start of picture text -----**<br>
Teaching mode<br>a cre<br>.<br>Use          to shift to<br>Monitor mode “T” flashes. the next parameter<br>Use          to  without registering.<br>register and shift to<br>ro monitor mode. ors (<3)<br>“T” lights to  /|2 >) Normal change<br>indicate that the parameter is valid  8 memnmn<br>for teaching.<br>&<br>“T” turns OFF.<br>Next parameter<br>**----- End of picture text -----**<br>


## **OUT Types (Comparative Output Models Only)** 

OUT 1 and OUT 2 can be set to operate in one of the three following modes in accordance with the compared values: 

**•** Upper and lower limits (Outside Band Acting): An upper limit (H set value) and lower limit (L set value) can be set independently. 

- Upper limit (High Acting): The output is turned ON when the measurement value is greater than its set value. 

The output is turned ON when the measurement value is greater than upper-limit set value or less than the lower-limit set value. 

- Lower limit (Low Acting): 

|The output is turned ON when the measurement value is greater<br>than its set value.<br>Lower limit (Low Acting):|than upper-limit set value or less than the lower-limit set value.|than upper-limit set value or less than the lower-limit set value.|than upper-limit set value or less than the lower-limit set value.|
|---|---|---|---|
|Lower limit (Low Acting):|**Parameter**|**Set value**|**Meaning**|
|The output is turned ON when the measurement value is less than<br>its set value.|out1.t<br>or|hi|Upper limit: Upper-limit alarm<br>operation|
||out2.t|lo|Lower limit: Lower-limit alarm|
||||operation|
|||hi-lo|Upper and lower limits: Upper-|
||||and lower limit alarm operation|



## **Upper Limit (High Acting)** 

## **Lower Limit (Low Acting)** 

## **Upper and Lower Limits (Outside Band Acting)** 

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OUT1 value OUT1 upper-limit<br>Hysteresis value  Hysteresis<br>Measurement value Measurement value Measurement value<br>OUT1 value Hysteresis OUT1 lower-limit  Hysteresis<br>value<br>ON ON ON<br>Output Output Output<br>OFF OFF OFF<br>**----- End of picture text -----**<br>


The three types of output operations shown above can be combined as desired. The following are examples of possible combinations. 

## **Upper Limit 2-stage Output** 

## **Threshold Output** 

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Upper Limit 2-stage Output Threshold Output Combination of Upper Limit and<br>Upper/Lower Limits<br>OUT2 upper-limit   OUT2 upper-limit<br>OUT2  value Measurement  value<br>value OUT1 upper-limit  value<br>Measurement  value OUT1 value<br>value Measurement<br>OUT1 lower-limit  value<br>value OUT2 lower-limit<br>OUT1 value OUT2 lower-limit  value<br>value<br>OUT2 [ON] OUT2 [ON] OUT2 [ON]<br>OFF OFF OFF<br>ON ON ON<br>OUT1 OUT1 OUT1<br>OFF OFF OFF<br>**----- End of picture text -----**<br>


## **Parameter Initialization** 

Use this to reset the K3MA-F after returning it to its factory-set condition. 

This function returns all of the parameters to their initial values. 

|**Parameter**|**Setting value**|**Meaning**|
|---|---|---|
|init|off|---|
||on|Initializes all parame-<br>ters.|



**6** 

**K3MA-F** 

## **Average Processing** 

Average processing stabilizes the display by minimizing any pulsating or flicker caused by fluctuations in the pulse width of sensor input or by eccentricity in rotating shafts. 

## **Hysteresis (Comparative Output Models Only)** 

The hysteresis of comparative outputs can be set to prevent chattering in the output when the measurement value fluctuates finely near the OUT value. 

## **Upper limit (high acting)** 

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**----- Start of picture text -----**<br>
Set value<br>Hysteresis<br>Measurement value<br>ON<br>Output OFF<br>**----- End of picture text -----**<br>


## **Auto-zero Time** 

This function sets the time for the display to return to zero when input pulses stop. Set the time longer than the expected input pulse cycle (the interval between one input pulse and the next). Proper measurement is not possible if the time is set shorter than the input pulse cycle. Setting range: 0.0 to 19.9 s 

## **Startup Compensation Time** 

## ~~a~~ 

The startup compensation time is the time to wait for the measurement operation to be entered after the power supply of the K3MA-F is turned ON. Use this parameter to cancel measurement and comparative output operation until the a rotating body reaches its normal speed when the power supply to the K3MA-F and rotating body are turned ON at the same time. 

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**----- Start of picture text -----**<br>
Display<br>Lower limit<br>setting<br>(OUT2)<br>aan,<br>Startup<br>compensation<br>time<br>00000 displayed Time<br>Power supply<br>OUT2<br>output<br>**----- End of picture text -----**<br>


## **Changing the Display Color** 

The color of the value displayed can be set to either red or green. For comparative output models, the display color can be set to change from green to red, or from red to green, according to the status of the comparison criterion. 

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**----- Start of picture text -----**<br>
Red J<br>OUT1 value rd 113.36<br>Green<br>100.05<br>OUT2 value<br>8.781<br>a, Red<br>**----- End of picture text -----**<br>


## **Display Auto-return Time** 

This function automatically returns the display to the operation level’s current value if no keys are pressed for a preset time (called the display auto-return time). 

## **Move-to-Protect-Level Time** 

The time required to shift to the protect level can be set as desired. 

## **MAX/MIN Display** 

The maximum and minimum measurement (display) values from the time the power is turned ON until the current time can be stored and displayed. This is useful, for example, when measuring the maximum value. 

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**----- Start of picture text -----**<br>
Current value<br>MAX/MIN<br>“=<br>MAX value<br>=<br>MAX/MIN<br>MIN value<br>MAX/MIN<br>**----- End of picture text -----**<br>


**7** 

**K3MA-F** 

## **Nomenclature** 

## 2. Operation indicators 

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**----- Start of picture text -----**<br>
1 Max<br>2 Min 1. Main indicator<br>3. Level indicator SV<br>T<br>**----- End of picture text -----**<br>


4. MAX/MIN key 8. Up key 

5. Level key 7. Shift key 6. Mode key 

|||5. Level key<br>6. Mode key<br>7. Shift key|5. Level key<br>6. Mode key<br>7. Shift key|
|---|---|---|---|
|**Name**||**Functions**||
|1. Main indicator||Displays current values, parameter names (abbreviations), and comparative value settings.||
|2. Opera-<br>tion indica-<br>tors|1|Lit when output 1 is ON.||
||2|Lit when output 2 is ON.||
||SV|Lit when a set value is beingdisplayed or changed.||
||Max|Lit when the main indicator is showingthe MAX value.||
||Min|Lit when the main indicator is showingthe MIN value.||
||T|Lit when the teachingfunction is operable. Blinks while the teachingfunction is operating.||
|3. Level indicator||Displays the current level that the K3MA-F is in. (See below for details.)||
|4. MAX/MIN Key||Used to displaythe MAX and MIN values when a measurement value is beingdisplayed.||
|5. Level Key||Used to change the level. The level can be switched between operation level and initial settinglevel.||
|6. Mode Key||Used to allow the main indicator to indicateparameters sequentially.||
|7. Shift Key||Used to enable a set value to be changed. When changinga set value, this keyis used to move alongthe digits.||
|8. Up Key||Used to change a set value. Used to set or clear a forced-zero function when a measurement value is beingdisplayed.||
|**Level indicator**<br>**Level**<br>p<br>Protect<br>Not lit<br>Operation<br>s<br>Initial setting<br>f<br>Advanced function setting||||
|**Level indicator**|||**Level**|
|p|||Protect|
|Not lit|||Operation|
|s|||Initial setting|
|f|||Advanced function setting|



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**8** 

**K3MA-F** 

**(Unit:mm)** 

## **Dimensions** 

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101.2  Terminal cover  Main indicator  Panel cut-out<br>91  (provided)  character size<br>120 min.<br>14.2 mm<br>85<br>97  7.6 mm<br>75 min. 92 +0.50<br>[eS 12  P 45 f +0.50<br>1.3<br>80<br>See, LE<br>96<br>Mounting Recommended Panel Thickness<br>1 to 8 mm.<br>44.8 Mount the product horizontally.<br>48  . a<br>MAX/MIN  LEVEL  MODE  SHIFT  UP  The K3MA-F uses M3 terminals.A terminal cover is provided.<br>E  D  C  B  A<br>**----- End of picture text -----**<br>


## **A lication Exam les pp p** 

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**----- Start of picture text -----**<br>
Displaying conveyor  Monitoring the rotations  Displaying the monitor<br>belt feed speed of a mixer or churner output from an inverter<br>K3MA-F m/min rpm as rotations or line speed<br>; @&> Da OO OO aD<br>rpm<br>Inverter<br>K3MA-F<br>K3MA-F<br>Gear Mixer or churner Motor Voltage pulse<br>=<br>Proximity sensor<br>Note:  If the monitor output from the inverter is analog,<br>• Monitoring line speed for a reflow  • Mixers for resin molding such as 0 to 10 V, use the K3MA-J.<br>furnace<br>**----- End of picture text -----**<br>


- Powdering/pelleting machines, 

- • Displaying feed speed for food centrifugal separators processing, conveying, sintering 

- Monitoring conveyor speed 

- Machining equipment (grinders, polishers) 

**9** omron ~~a~~ 

**K3MA-F** 

## **Installation** 

**1.** Insert the K3MA-F into the panel cut-out hole. 

**2.** For a waterproof installation, insert the rubber gasket onto the body of the K3MA-F. 

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**3.** Fit the adaptor into the grooves on the left and right sides of the rear case, then push it until it contacts the panel to secure the K3MA-F. 

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## ■ **LCD Angle of View** 

The K3MA is designed to provide the best visibility at the angles shown in the following diagram. 

## ■ **Wiring Precautions** 

- Use crimp terminals. 

- Tighten the terminal screws to a torque of approximately 0.5 N ⋅ m. 

- To avoid the influence of noise, route signal lines and power lines separately. 

## ■ **Wiring** 

- Use the following M3 crimp terminals. 

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5.8 mm max.<br>5.8 mm max.<br>**----- End of picture text -----**<br>


## ■ **Unit Labels (Provided)** 

- The unit labels are not attached to the K3MA-F. Select the desired labels from the provided sheet. 

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**Note:** For scales and gauges, use the unit labels that are specified by the relevant laws or regulations. 

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**----- Start of picture text -----**<br>
10°<br>30°<br>**----- End of picture text -----**<br>


## ■ **Watertight Cover** 

## **Y92A-49N** 

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## ■ **Rubber Packing** 

## **K32-P1** 

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If the rubber packing is lost or damaged, it can be ordered using the following model number: K32-P1. 

(Depending on the operating environment, deterioration, contraction, or hardening of the rubber packing may occur and so, in order to ensure the level of waterproofing specified in NEMA4, periodic replacement is recommended.) 

**Note:** Rubber packing is provided with the Controller. 

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**10** 

**K3MA-F** 

## **O eratin Procedures p g** 

## ■ **Operations in Run Mode** 

## **Checking the Maximum and Minimum Values** 

The maximum and minimum values can be displayed by pressing the MAX/MIN Key while the measurement is being displayed. 

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**----- Start of picture text -----**<br>
Measurement  MAX/MIN Key MAX value MAX/MIN Key MIN value MAX/MIN Key<br>value<br>**----- End of picture text -----**<br>


The maximum and minimum values can be reset by pressing the MAX/MIN Key for 1 s min. when the maximum or minimum value is displayed. 

## **Checking and Setting Comparative Set Values (for Models with the Comparative Output Function)** 

Each time the Mode Key is pressed when the measurement value, maximum value, or minimum value is displayed, the comparative values will be displayed in the following order: OUT1 value (or OUT1 upper-limit value, OUT1 lower-limit 1), OUT 2 value (or OUT2 upper-limit value, OUT2 lower limit value 2). 

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**----- Start of picture text -----**<br>
OUT1  OUT2<br>Measurement  value value<br>value<br>MAX value<br>MIN value OUT1 upper- OUT1 lower- OUT2 upper- OUT2 lower-<br>limit value limit value limit value limit value<br>**----- End of picture text -----**<br>


**Note:** When the comparative value is displayed, it can be changed by pressing the Shift Key and the Up Key (when key protection is OFF). 

## ■ **Levels** 

“Level” refers to a grouping of parameters. The following table lists the operations that are possible in each of the levels, and the diagram tells how to move between levels. There are some parameters that are not displayed for certain models. 

|**Level name**|**Function**|**Measurement**|
|---|---|---|
|Protect|Settinglockouts.|Continue|
|Operation|Displayingcurrent values, and settingOUT 1/2 set values.|Continue|
|Initial setting|Making initial settings of input type, scaling, output operating action,<br>and other parameters.|Stopped|
|Advanced function setting|Setting average processing, display color settings, and other ad-<br>vanced function parameters.|Stopped|



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Power ON<br>Level  Key<br>+ MODE Key<br>for at least user-set time<br>Operation level Protect level<br>Level  Key<br>+ MODE Key<br>1 s min.<br>Level Key Level  Key<br>1 s min.  3 s min.<br>Measurement in progress<br>Initial setting level Measurement stopped<br>Level change<br>Level  Key<br>1 s min.  Password input<br>Advanced function<br>setting level<br>**----- End of picture text -----**<br>


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**11** 

**K3MA-F** 

## ■ **Parameters** 

**Note:** 1. Some parameters are not displayed for certain models. 

2. The K3MA-F will stop measurement if the level is changed to the initial setting level or the advanced-function setting level. 

3. If the input range is changed, some parameters are set to default values. Therefore, set the input range first. 

4. Settings displayed in reversed colors are defaults. 

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**----- Start of picture text -----**<br>
Power ON<br>Operation level<br>Current value<br>For models with the<br>MODE<br>comparative output<br>function.<br>OUT1 value −<br>MODE<br>Set one of these.<br>OUT1<br>upper-limit  −<br>value<br>MODE<br>OUT1<br>lower-limit  −<br>value<br>MODE<br>OUT2 −<br>value<br>MODE<br>Set one of these. OUT2<br>upper-limit  −<br>value<br>MODE<br>OUT2<br>lower-limit value −<br>MODE<br>**----- End of picture text -----**<br>


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**12** 

**K3MA-F** 

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**----- Start of picture text -----**<br>
To change a setting, press the Shift Key         again, and then<br>Press Level  make the change with the Up Key        .<br>Key        for<br>more than 3 s. Press Level Key        for less than 1 s.<br>Initial setting level Advanced-function<br>setting level<br>Press Level<br>Key         for  Enter<br>more than 1 s. Pulse frequency password<br>Pulse  "-0169" Parameter<br>frequency / initialization /<br>MODE<br>MODE Scaling<br>Scaling  Average  / / /<br>input  − processing<br>value MODE Comparative hysteresisUnit: times<br>MODE<br>Scaling  Models with the  OUT1 hysteresis − −<br>display  − compara-<br>value tive  MODE<br>MODE output function OUT2 hysteresis − −<br>Decimal point  − MODE<br>position Auto-zero<br>MODE time /<br>OUT1 type Upper Limit MODE<br>Models with the  MODE Lower LimitUpper/Lower Limits Startup compensation time −<br>compara- MODE<br>tive output  OUT2 type Upper Limit Green (red)<br>function Lower Limit Display  Green<br>color<br>Upper/Lower Limits change Red (green)<br>MODE MODE Red<br>Move to<br>advanced-function  − Display auto-return  − −<br>MODE setting level MODE time Unit: s<br>Move-to-<br>protect- − −<br>level time<br>Unit: s<br>MODE<br>Settings displayed in reversed colors are initial settings.<br>**----- End of picture text -----**<br>


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**13** 

**K3MA-F** 

Press           Level Key +          Mode Key for more than 1 s. 

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**----- Start of picture text -----**<br>
Operation level Protect level<br>Press          Level Key +         Mode Key for more<br>than preset time.<br>Operation/adjustment  lockouts /    /<br>MODE<br>Setting level lockouts /     /<br>MODE<br>Setting change lockout /<br>MODE<br>**----- End of picture text -----**<br>


## **Operation/Adjustment Lockouts** 

Restricts key operations for operation level and adjustment level. 

|**Parameter**|**Setting**|**Operation level**|**Operation level**|
|---|---|---|---|
|||**Current value**<br>**display**|**Set value**<br>**display**|
|oapt|0<br>1<br>2|Allowed<br>|Allowed|
|||Allowed<br>|Allowed|
|||Allowed<br>|Prohibited|



## ■ **Initial Settings** 

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**----- Start of picture text -----**<br>
Power ON<br>**----- End of picture text -----**<br>


Press the Level Key       for 3 s min. to move to the initial setting level. 

- Initial setting is 0. 

- This is not displayed on models with no comparative output function. 

Select the pulse frequency for measurement. Set the scaling values and OUT type as required. 

## **Setting Level Lockouts** 

Restricts shifting to initial setting level or advanced function setting level. 

|**Parameter**|**Setting**|**Shift to initial**<br>**setting level**|**Shift to**<br>**advanced**<br>**function**<br>**setting level**|
|---|---|---|---|
|icpt|0|Allowed|Allowed|
||1|Allowed|Prohibited|
||2|Prohibited|Prohibited|



If required, shift to the advanced-function setting level to set the number of measurements for average processing, hysteresis values, auto-zero time, startup compensation time, display color change, display auto-return time, or move-toprotect-level time. 

Press the Level Key       for more than 1 second to return to the operation level. 

## **Setting Change Lockout** 

Restricts setting changes by key operation. When this lockout is set, it is no longer possible to shift to a setting change mode. 

|**Parameter**|**Setting**|**Setting change by key**<br>**operation**|
|---|---|---|
|wtpt|off|Allowed|
||on|Prohibited|



Specify set value of OUT 1 and 2. 

Measurement starts. 

However, all protect level parameters can still be changed. 

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**14** 

**K3MA-F** 

## ■ **Setting Example** 

## **Initial Settings** 

The settings for the following example are shown here. 

## **Example: Display conveyor belt feed speed** 

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E2E-X5E1<br>Proximity Sensor<br>0.1 m<br>SV12 MaxMin<br>MAX/MIN LEVEL MODE SHIFT UP<br>K3MA-F-A2 100-240VAC<br>**----- End of picture text -----**<br>


Here, the conveyor belt feed speed is to be displayed in units of 0.1 m/min. 

- Proximity Sensor: E2E-X5E1, NPN output 

**==> picture [157 x 130] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 pulse/rotation, roller diameter 0.1 m<br>Display value<br>dsp<br>18850<br>Input value<br>inp<br>100<br>**----- End of picture text -----**<br>


When displaying a flowrate (e.g., in l /min or l /h), make the scaling settings after confirming the I/O characteristics of the flowrate sensor. There are flowrate sensors that output analog signals. If this kind of flowrate sensor is used, consider using the K3MA-J. 

**1.** Select the maximum input frequency for the K3MA-F. Set the pulse frequency selection to either 30 Hz or 5 kHz. In the example, this is set to 30 Hz because the conveyor belt is turning at a slow speed. 

Parameter: p-fre (pulse frequency), Setting value: 30 

**2.** Set the scaling. The display value (D) is shown with the following formula. 

   - D = f × α , 

   - f: frequency and 

   - α : prescaling value 

The value of α will be internally calculated and registered if the input value (f) and the display value (D) are set. 

The number of rotations or speed is shown with the following formula. 

Rotations (rpm) = Frequency input/No. of pulses per rotation × 60 Cycle speed D (m/min)= Rotations × roll circumference = 1/N × f × 60 × d × π N: No. of pulses per rotation 

- f: Frequency (Hz) 

d: Roller diameter (m) 

When the input conditions are applied to this equation, we obtain the following: 

Display value = 1/1 × f × 60 × 0.1 × π 

For an input of 1 Hz, the display value is 18.8495 (m/min). The scaling settings for the K3MA-F must be integers. Also, to decrease error, the scaling value is multiplied by 1,000, to obtain an input of 1000 Hz and a display value of 18850. However, - because the display value in this case is displayed to the first dec imal place, the scaling is set as shown in the following example so that 1885.0 is displayed for an input of 100 Hz. 

Parameter                            Setting value inp (scaling input value) 100 dsp (scaling display value) 18850 dp (decimal point position) %%%%.% 

**Note:** The decimal point position here refers to the position in the number after scaling. When setting the scaling display value, it is necessary to consider the number of digits to be displayed past the decimal point. 

## ■ **Troubleshooting** 

When an error occurs, error details will be displayed on the main indicator. Confirm the error from the main indicator and take the appropriate countermeasures. 

|**Level**<br>**display**|**Main indicator**|**Error contents**|**Countermeasures**|
|---|---|---|---|
|Not lit|e111<br>|RAM memory error|Repair is necessary.<br>Consultyour OMRON sales representative.|
|5|e111<br>|EEPROM memory error|When this error is displayed, press the Level Key for 3 sec-<br>onds, and the settings will be restored to the factory set-<br>tings.<br>If the error cannot be recovered, repair is necessary. Con-<br>sult your OMRON sales representative.|
|Not lit|Flashes99999<br>|The scaling display value exceeds 99999.|Promptly change the input to a value that falls within the<br>specified range.|
||||The scaling value may be inappropriate. Review the scal-<br>ingvalue at the initial settinglevel.|
|Not lit|Flashes-19999<br>|The scaling display value is lower than−19999.|Promptly change the input to a value that falls within the<br>specified range.|
||||The scaling value may be inappropriate. Review the scal-<br>ingvalue at the initial settinglevel.|



ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. 

In the interest of product improvement, specifications are subject to change without notice. 

**==> picture [539 x 34] intentionally omitted <==**

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. 

**15** 

## Terms and Conditions Agreement 

## Read and understand this catalog. 

Please read and understand this catalog before purchasing the products.  Please consult your OMRON representative if you have any questions or comments. 

## Warranties. 

(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. 

(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE 

PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 

Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. 

See http://www.omron.com/global/ or contact your Omron representative for published information. 

## Limitation on Liability; Etc. 

OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. 

## Suitability of Use. 

Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. 

NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 

## Programmable Products. 

Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. 

## Performance Data. 

Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 

## Change in Specifications. 

Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. 

## Errors and Omissions. 

Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 

**In the interest of product improvement, specifications are subject to change without notice.** 

## **OMRON Corporation** 

## **Industrial Automation Company** 

2017.4 

**http://www.ia.omron.com/** 

(c)Copyright OMRON Corporation 2017 All Right Reserved.