# MULTIFUNCTION METER, DIGITAL, 5A, 250V
**URL**: https://novapart.co/products/AP50-3JURZZ0000000/multifunction-meter-digital-5a-250v
**SKU**: AP50-3JURZZ0000000
**Manufacturer**: SIFAM TINSLEY
**Category**: Automation & Process Control || Panel Displays & Instrumentation || Panel Instrumentation || Digital Panel Meters
**Price**: €309.1500
**Stock**: 10+
**Lead Time**: 62 days (indicative)
## Description
No. of Digits / Alpha:-; Meter Function:Multifunction; Meter Range:-; Digit Height:-; Panel Cutout Height:92mm; Panel Cutout Width:92mm; Supply Voltage Min:100V 58AC1526
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3760279/)
## **Technical Data Sheet** _**Alpha 50**_
**C** R Gus **LISTED File No. E471457**
_**Alpha 50**_ is a compact multifunction instrument with touch screen LCD utility which measures important electrical parameters in 3 phase and single phase Network & replaces the multiple analog panel meters.
## **Special Features**
True RMS Measurement
- Onsite Programmable Low Back Depth Phase Reversal Indication
- Touch screen graphics LCD
- RS-485, Limit or Pulse Output, analog output
_**Alpha 50**_
## **Application**
_**Alpha 50**_ measures important electrical parameters in 3 phase and single phase Network & replaces the multiple analog panel meters. It measures electrical parameters like AC current, Voltage, frequency, active energy import & active energy export, Current Demand, kW Demand, kVA Demand and Max Current Demand, Max kW Demand and Max kVA Demand. The instrument has optional output as one pulse output or two pulse output for energy measurement.
## **Product Features**
|**Touch screen**
**graphics LCD**|Alpha 50 has touch sensible color
graphics LCD display with resolution of
320 x 240.||**Phaser**
**Diagram**|Pictorial representation of all 3 Phases
(Voltage & Current) in terms of vectors.|
|---|---|---|---|---|
||||**Wave Form**|Pictorial representation of all 3 phases
Current & voltage in terms of sinusoidal
waveform.|
|**On site**
**programmable**
**PT/CT ratios**|It is possible to program primary of external
potential Transformer (PT), primary of
external Current Transformer (CT) on site
locally by entering into Programming mode
or remotely via MODBUS (RS-485)||||
||||**Total Harmonic**
**Distortion**
**(THD)**|The instrument can measures per phase (%)
THD of voltage and (%) THD of current.|
|**User selectable**
**CT Secondary**
**A/1A**|The secondary of external Current
Transformer (CT) can be programmed on site
to either 5A or 1A locally by entering into
Programming mode or remotely via
MODBUS (RS-485)||||
||||**Energy**
**Count storage**|In case of power failure, the instrument
memorizes the last energy count.
Every 40 sec, the instrument updates the
energy counter in the nonvolatile memory.|
||||**Programmable**
**Energy format**
**& Energy**
**rollover count**|Customer can assign the format for energy
display on MODBUS (RS-485) in terms of
W, kW or MW. Additional to this, customer
can also set a rollover count from 7 to 14
digits depending on the energy format.|
|**User selectable**
**PT Secondary**|The secondary of external potential
Transformer (PT) can be programmed on site
locally by entering into Programming mode
or remotely via MODBUS (RS-485)||||
|**User selectable**
**3 phase 3W or**
**4W unbalanced**
**network**|User can program on site the network
connection as either 3 Phase 3 Wire or 4 Wire
locally by entering into Programming mode
or remotely via MODBUS (RS-485).
For single phase applications, single phase
version is available.||**Hour Run,**
**ON Hour,**
**Number of**
**Interruptions**|Hour run records the number of hours load is
connected. ON Hour is the period for which
the auxiliary supply is ON. Number of
Interruptions indicates the number of times
the Auxiliary Supply was interrupted.|
||||**Optional**
**MODBUS**
**(RS485) Output**|The optional ModBus output enables the
instrument to transmit all the measured
parameters over standard MODBUS (RS-485).|
|**Low back depth**|The instrument has very low back depth
(behind the panel) of less than 80 mm in spite
of optional features like pulse output||||
||||**User Assignable**
**Registers for**
**MODBUS**|Customer can assign MODBUS register
address as per his need for faster response
time.|
|**Onsite selection**
**of Auto scroll /**
**Fixed Screen**|||||
||||**Optional Pulse**
**Output**
**(1 or 2 Relay**
**output) /**
**Limit switch**|The instrument can be programmed as Pulse
output or Limit Switch.|
|**Phase reversal**
**indication**|The instrument can detect wrong phase
sequence or failure of one of the input voltages
and displays “phase” error message.||||
||||**Pulse Output**|The optional pulse output is a potential free,
very fast acting relay contact which can be
used to drive an external mechanical counter
for energy measurement.|
|**Energy**
**measurement**
**(Import and**
**Export)**|Active energy (kWh), Reactive energy
(kVArh), Apparent energy (kVAh) & Ampere
Hour (kAh). Any of the parameters can be
freely assigned to 2 optional pulse outputs.||||
||||||
|**True RMS**
**measurement**|The instrument measures distorted
waveform up to 15th Harmonic.||||
|**User selectable**
**Low Current**
**suppression**
**(below 30 mA)**|User can suppress the readings below 30 mA
in the current measurement by onsite
programming if required.||||
**Page 1 of 6**
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**Version No. :ALS50/2015/02**
_**Alpha 50**_
## **Product Features**
**Min Max storage** The instrument stores minimum and **of parameters** maximum values for System Voltage and **possible** System Current. Every 40 sec minimum and maximum readings are updated. **Number of** The instrument measures more than 46 **parameters** electrical parameters of 3 Phase network. **measured : more than 46**
**Parameter Screen recall**
**Limit switch** The instrument will trip the one or two relays if the programmed parameter exceeds the programmed High & Low Limits. **Optional Analog** 1 or 2 Analog outputs can be programmed **Outputs** from a list of input[parameters.] **(1 or 2 Outputs) Enclosure** conforms to IP 54 (front face) as per IEC60529 **Protection for dust and water Compliance to** Compliance to International Safety standard **International** IEC 61010-1- 2001 **Safety standards EMC** Compliance to International standard **Compatibility** IEC 61326
## **Electrical Connections**
## **Reference conditions for Accuracy**
## **For 3 Phase 4 Wire Unbalanced Load**
|**Reference conditions for Accuracy**|**Reference conditions for Accuracy**|**Reference conditions for Accuracy**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|**Electrical Connections**
**F 3 Ph 4 i bld Ld**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Reference conditions for Accuracy**||||**F 3 Ph 4 i bld Ld**|||||||||||
|Reference temperature|23°C +/- 2°C|
||
**L1**
**L2**
**L3**
**N**
**L1**
**L2**
**L3**
**L1**
**L2**
**L3**
**N**||**or ase Wre**
**2**
**5**
**8**
**11**
**1**
||||**Unaance**
**3**
**4**
**6**
**7**
||
**L**
**N**
**AUX**
**SUPPLY**
**13**
**14**
**+**
**-**
L
O
A
D
**Load**
**L**
**N**
**AUX**
**SUPPLY**
**9**
**13**
**14**
**+**
**-**
L
O
A
D
**oa**
**L**
**N**
**AUX**
**SUPPLY**
**9**
**13**
**14**
**+**
**-**
L
O
A
D|||
|Input waveform|Sinusoidal (distortion factor 0.005)||||||||||||||
|Input frequency|50 or 60 Hz ±2%||||||||||||||
|Auxiliary supply voltage|Rated Value ±1%||||||||||||||
|Auxiliary supply frequency|Rated Value ±1%||||||||||||||
||||||||||||||||
|Voltage Range|50... 100% of Nominal Value.
60... 100% of Nominal Value for
THD.||||||||||||||
||||||||||||||||
|||||||**For 3 Phase 3 Wire**
**2**
**5**
**8**
**1**
||||**Unbalanced**
**3**
**7**|||||
|Current Range|10... 100% of Nominal Value.
20... 100% of Nominal Value for
THD.||||||||||||||
|Power|10... 100% of Nominal Current &
50... 100% of Nominal Voltage.
Cos phi / sin phi = 1 for Active /
Reactive Power & Energy.||||||||||||||
||||||||||||||||
|Power Factor / Phase Angle|40... 100% of Nominal Current &
50... 100% of Nominal Voltage.||||||||||||||
|**Accuracy**
|||||||||||||||
|Voltage|
± 0.5% of range||||||||||||||
|Current|
± 0.5%of range||||||||||||||
|Frequency|
± 0.15% of mid frequency||||||||||||||
|Active Power|
± 0.5% of range||||||||||||||
|Re-Active Power|
± 0.5% of range||||||||||||||
||||||||||||||||
|Apparent Power|
± 0.5% of range||||||||||||||
||||||||||||||||
|Active energy (kWh)|
± 0.5% of range||||||||||||||
||||||||||||||||
|Re Active energy (kVArh)|
± 0.5% of range||||||||||||||
|Apparent energy (kVAh)|
± 0.5% of range||||||||||||||
|Accuracy of Analog Output|
1 % of Output end value||||||||||||||
|Power Factor|
±1% of Unity||||||||||||||
|Angle|
±1% of range||||||||||||||
|Total Harmonic Distortion|
±1%||||||||||||||
||||||||||||||||
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**Version No. :ALS50/2015/02**
_**Alpha 50**_
## **Dimensions**
## **Input Voltage**
**==> picture [153 x 114] intentionally omitted <==**
**----- Start of picture text -----**
96 mm
Display Area
96 mm
**----- End of picture text -----**
**==> picture [492 x 635] intentionally omitted <==**
**----- Start of picture text -----**
Nominal input voltage Phase –Neutral 63.5 / 133 / 239.6
(AC RMS) / 254 VL-N
Line-Line 110/230/415/ 440 VL-L
System PT primary values 100VLL to 692kVLL programmable
on site.
Max continuous input 120% of rated value
voltage
Display Area
I nput Current 96 mm
Nominal input current 5A AC RMS.
System CT secondary values 1A & 5A programmable on site.
System CT primary values From 1A up to 9999A
(for 1 or 5 Amp )
Max continuous input current 120% of rated value
Auxiliary Supply 80 mm
ACDC Auxiliary Supply 100V… 250 VAC DC +/- 10%
DC Auxiliary Supply 12…..48 VDC +/- 10%
AC Auxiliary supply 45 to 66 Hz
frequency range
Overload Withstand
Voltage 2 x rated value for 1 second,
repeated 10 times at 10 second
intervals
Current 20x rated value for 1 second,
repeated 5 times at 5 min
Operating Measuring Ranges
Voltage 5… 120% of rated value
Current 5 … 120% of rated value
Frequency 40…70 Hz
92mm+0.8
Power Factor 0.5 Lag ... 1... 0.8 Lead
0.025%/°C for Voltage (50... 120%
of rated value) and
0.05%/°C for Current (10... 120%
of rated value)
Environmental
Operating temperature -20 to +70°C
Storage temperature -30 to +80°C
Relative humidity 0... 95% non condensing
Warm up time Minimum 3 minute Panel Cutout
Shock 15g in 3 planes
Vibration 10... 55 Hz, 0.15mm amplitude
**----- End of picture text -----**
**==> picture [55 x 10] intentionally omitted <==**
**----- Start of picture text -----**
92mm+0.8
**----- End of picture text -----**
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**Version No. :ALS50/2015/02**
_**Alpha 50**_
## **Ampere Hour**
## **Display update rate**
|**Display update rate**|||||Default pulse rate|CT secondary = 1A Max pulse rate|
|---|---|---|---|---|---|---|
|Response time to step input|1 sec approx.||||divisor|3600 pulses/Ah *|
|**Applicable Standards**
EMC
IEC 61326||||||CT secondary = 5A Max pulse rate
720 pulses/Ah|
|Immunity|IEC 61000-4-3. 10V/m min –
Level 3 industrial low level||||**Other Pulse rate**
**Divisors (applicable only when Energy on MODBUS (RS-485) is in W)**||
|Safety|IEC 61010-1-2001 , Permanently||||10|CT secondary = 1A Max pulse rate
3600 pulses/10Ah *|
||connected use||||||
|IP for water & dust|IEC60529|||||CT secondary = 5A Max pulse rate
720 pulses/10Ah|
|Pollution degree|2||||100|CT secondary = 1A Max pulse rate|
|Installation category|III|||||3600 pulses/100Ah *|
|High Voltage Test|2.2 kV AC, 50Hz for 1 minute|||||CT secondary = 5A Max pulse rate|
||between all electrical circuits|||||720 pulses/100Ah|
|**VA Burden**|||||1000|CT secondary = 1A Max pulse rate
3600 pulses/1000Ah *|
|Nominal input voltage burden|< 0.2 VA approx. per phase|||||CT secondary = 5A Max pulse rate|
|Nominal input current burden|< 0.6 VA approx. per phase|||||720 pulses/1000Ah|
|**Auxillary Supply burden**|||||Pulse duration|60 ms, 100 ms or 200 ms|
|For VAC Aux.|< 6.5 VA approx.||||*No. of
|Pulses =Maximum Pulses
CT Ratio|
|For DC Aux.|< 3 W approx.||||Where,|CT Ratio = (CT primary/ CT Secondary)|
## **Energy (can be programmed for different energy parameters simultaneously)**
## **Energy (can be programmed for different energy parameters simultaneously)**
Relay contact (1NO+1NC) Switching Voltage & current for Relay 240 VDC ,5 A
## **Default pulse rate divisor**
1 per Wh (up to 3600W) 1 per kWh (up to 3600kWh) 1 per MWh (above 3600kW) **Other Pulse rate divisors (applicable only when Energy on RS-485 is in W)** 10 1 per 10 Wh (up to 3600W) 1 per 10 kWh (up to 3600kWh) 1 per 10 MWh (above 3600kW) 100 1 per 100 Wh (up to 3600W) 1 per 100 kWh (up to 3600kWh) 1 per 100 MWh (above 3600kW) 1000 1 per 1000 Wh (up to 3600W) 1 per 1000 kWh (up to 3600kWh) 1 per 1000 MWh (above 3600kW)
Pulse Duration 60 ms, 100 ms, 200 ms Above options are also applicable to Apparent and Reactive Energy.
## **Limit Output Option**
1) Hi alarm & Energized Relay 2) Hi alarm & De-energized Relay 3) Lo alarm & Energized Relay 4) Lo alarm & De-energized Relay
With user selectable Trip point, Hysteresis, Energizing delay and De-energizing delay.
## **PT Secondary Ranges for Various Input Voltage**
|**Input Voltage**|**PT Secondary Settable Range**|
|---|---|
|110V L-L (63.5V L-N)|100V – 120V L-L (57V – 69V L-N)|
|230V L-L (133V L-N)|121V – 239V L-L (70V – 139V L-N)|
|415V L-L (239.6V L-N)|240V – 480V L-L (140V – 277V L-N)|
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_**Alpha 50**_
## **Electrical Parameters**
|**Sr No**|**Displayed Parameters**|**3 Phase 4Wire**|**3Phase 3Wire**|**Single Phase 2W**|
|---|---|---|---|---|
|1.|System Volts||||
|2.|System Current||||
|3.|Volts L1 – N||||
|4.|Volts L2 – N||||
|5.|Volts L3 – N||||
|6.|Volts L1 – L2||||
|7.|Volts L2 – L3||||
|8.|Volts L3 – L1||||
|9.|Current L1||||
|10.|Current L2||||
|11.|Current L3||||
|12.|Neutral Current||||
|13.|Frequency||||
|14.|System Active Power (kW)||||
|15.|Active Power L1 (kW)||||
|16.|Active Power L2 (kW)||||
|17.|Active Power L3 (kW)||||
|18.|System Re-active Power (kVAr)||||
|19.|Re-active Power L1 (kVAr)||||
|20.|Re-active Power L2 (kVAr)||||
|21.|Re-active Power L3 (kVAr)||||
|22.|System Apparent Power (kVA)||||
|23.|Apparent Power L1 (kVA)||||
|24.|Apparent Power L2 (kVA)||||
|25.|Apparent Power L3 (kVA)||||
|26.|System Power Factor||||
|27.|Power Factor L1||||
|28.|Power Factor L2||||
|29.|Power Factor L3||||
|30.|Phase Angle L1||||
|31.|Phase Angle L2||||
|32.|Phase Angle L3||||
|33.|Import kWh (8 digit resolution)||||
|34.|Export kWh (8 digit resolution)||||
|35.|Import kVArh (8 digit resolution)||||
|36.|Export kVArh (8 digit resolution)||||
|37.|kVAh (8 digit resolution)||||
|38.|KAh (8 digit resolution)||||
|39.|Current Demand||||
|40.|KVA Demand||||
|41.|KW Import Demand||||
|42.|KW Export Demand||||
|43.|Max Current Demand||||
|44.|Max KVA Demand||||
|45.|Max KW Import Demand||||
|46.|Max KW Export Demand||||
|47.|Run Hour||||
|48.|On Hour||||
|49.|Number of Interruptions||||
|50.|Phase Reversal Indication||||
|51.|
Phaser Diagram (Pictorial Representation)||||
|52.|
VA waveform (Pictorial Representation)||||
|53.|THD Volts L1-N||||
|:Available :Not Available|||||
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**Version No. :ALS50/2015/02**
_**Alpha 50**_
## **Electrical Parameters**
~~GC~~ **Sr No Displayed Parameters 3 Phase 4Wire 3Phase 3Wire Single Phase 2W** ~~GG~~ 54. THD Volts L2-N 55. THD Volts L3-N 56. THD Volts L1-L2 ~~er~~ 57. THD Volts L2-L3 58. THD Volts L3-L1 ~~cs~~ 59. THD Current L1 60. THD Current L2 ~~ae~~ 61. THD Current L3 ~~GG~~ 62. THD Voltage Mean ~~GF~~ 63. THD Current Mean : Available : Not Available **Ordering Information** Product Code AP50X X X X X X 0000000 3 Ph. (PR. 3W or 4W) 3 System Type 1 Ph. 1 ~~SL __~~ Input Voltage / Current 110V L-N 1/5A 1 ~~a~~ 230V L-N 1/5A 3 ~~a~~ 110V L-L 1/5A 6 ~~a~~ 220V L-L 1/5A 9 ~~a~~ 230V L-L 1/5A A ~~ee~~ 380V L-L 1/5A C ~~pO~~ 400V L-L 1/5A D ~~a~~ 415V L-L 1/5A E 440V L-L 1/5A F ~~**=**~~ Power Supply 100-250V AC/DC +/- 10% ~~I~~ U 12V-48V DC +/- 10% D ~~ee eee~~ RS 485 With RS 485 R Without RS 485 Z Pulse Output 1 Pulse output S 2 Pulse output D ~~oe~~ ~~**co**~~ Pulse O/P not used Z Analog Output 2 outputs ( 0 – 1mA ) 1 ~~co~~ 2 outputs ( 4 – 20 mA ) 2 ~~a~~ Analog Outputs option not used Z
**Sifam Tinsley Instrumentation Ltd** Unit 1 Warner Drive, Springwood Industrial Estate Braintree, Essex, UK, CM72YW **E-mail:** sales@sifamtinsley.com **Web:** www.sifamtinsley.com/uk **Contact:** +44(0)1803615139
**Sifam Tinsley Instrumentation Inc.** 77 7 3105, Creekside Village Drive, Suite No. 801, Kennesaw, Georgia 30144 (USA) **E-mail Id** : psk@sifamtinsley.com **E-mail: Web :** www.sifamtinsley.com **Web:** OL sifam tinsley **Contact No. :** +1 404 736 4903 **Contact:**
**Page 6 of 6**
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**Version No. :ALS50/2015/02**
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- [Supplier page](https://es.farnell.com/sifam-tinsley/ap50-3jurzz0000000/multifunction-meter-digital-5a/dp/3760279)
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