E3H2-T4B4M 2M

Miniature photoelectric sensors in cylindrical M8 and M12 housing **E3H2** 

- M8 or M12 sized cylindrical housings when mounting space is crucial 

- Retro-reflective models with two teaching modes for standard and semi-transparent objects 

- pre-wired and connector models 

## Ordering Information 

|Sensor type<br>~~|~~<br>~~|~~<br>~~femme |~~|Sensing<br>distance<br>~~|~~<br>~~|~~|Operation mode<br>~~fen.~~<br>~~ee~~|Connection method<br>~~a~~<br>~~fen.~~<br>|Connection method<br>~~a~~<br>~~fen.~~<br>|Connection method<br>~~a~~<br>~~fen.~~<br>|Connection method<br>~~a~~<br>~~fen.~~<br>|Order code<br>~~fen.~~<br>|Order code<br>~~fen.~~<br>|
|---|---|---|---|---|---|---|---|---|
||||~~a~~<br>~~fen.~~<br>~~ee~~|~~a~~<br>~~fen.~~<br>~~ee~~|~~a~~<br>~~fen.~~<br>~~ee~~|~~fen.~~<br>~~ee~~|NPN output<br>~~fen.~~<br>~~ee~~|PNP output<br>~~fen.~~<br>~~ee~~|
|Through-beam<br>~~|~~<br>~~|~~<br>~~femme |~~<br>~~ay|~~<br>~~cans!~~|4 m<br>(adjustable)<br>~~|~~<br>~~|~~<br>~~|~~|light on / dark on<br>selectable<br>~~fen.~~<br> ~~ee~~<br>~~ee~~<br>~~P|~~<br>~~**ee**~~<br>~~oe~~<br>~~P|~~<br>~~P|~~<br>~~a~~|–<br>~~a~~<br>~~fen.~~<br>~~ee~~|–<br>~~a~~<br>~~fen.~~<br>~~ee~~|2 m<br>~~a~~<br>~~fen.~~<br>~~ee~~|–<br>~~fen.~~<br>~~ee~~|E3H2-T4C4M 2M<br>~~fen.~~<br>~~ee~~|E3H2-T4B4M 2M<br>~~fen.~~<br>~~ee~~|
||||–<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~P|~~|~~fen.~~<br>~~ee~~<br>~~ee ee~~<br>~~P|~~<br>~~|~~|–<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~|~~|–<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~|]~~|E3H2-T4C4M-M1<br>~~fen.~~<br>~~ee~~<br>~~|]~~|E3H2-T4B4M-M1<br>~~fen.~~<br>~~ee~~<br>~~|]~~|
|Retro-reflective<br>with M.S.R.<br>~~|~~<br>~~femme |~~<br>~~ay|~~<br>~~cans!~~|2 m<br>(teachable*1)<br>~~|~~<br>~~| ~~<br>~~|~~<br>~~oe~~||–<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~P|~~|–<br>~~fen.~~<br>~~ee~~<br>~~ee ee~~<br>~~P|~~<br>~~|~~|2 m<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~|~~|–<br>~~fen.~~<br>~~ee~~<br>~~ee~~<br>~~|]~~|E3H2-R2C4M 2M*2<br>~~fen.~~<br>~~ee~~<br>~~|]~~|E3H2-R2B4M 2M*2<br>~~fen.~~<br>~~ee~~<br>~~|]~~|
||||–<br>~~ee~~<br>~~P|~~<br>~~**ee**~~|~~ee ee~~<br>~~P|~~<br>~~|~~<br>~~**ee**~~|–<br>~~ee~~<br>~~|~~<br>~~**ee**~~|–<br>~~ee~~<br>~~|]~~<br>~~**ee**~~|E3H2-R2C4M-M1*2<br>~~|]~~|E3H2-R2B4M-M1*2<br>~~|]~~|
|Diffuse-reflec-<br>tive<br>~~ay |~~<br>~~cans!~~<br>c~~= ~~|300 mm<br>(teachable)<br>~~|~~<br>~~oe~~<br> ~~a~~||–<br>~~ee~~<br>~~P|~~<br>~~**ee**~~<br>~~P|~~|–<br>~~ee ee~~<br>~~P|~~<br>~~|~~<br>~~**ee**~~<br>~~P|~~<br>~~|~~|2 m<br>~~ee~~<br>~~| ~~<br>~~**ee**~~<br>~~|~~|–<br>~~ee~~<br> ~~|]~~<br>~~**ee**~~<br>~~|]~~|E3H2-DS30C4M 2M<br>~~|]~~<br>~~|]~~|E3H2-DS30B4M 2M<br>~~|]~~<br>~~|]~~|
||||–<br>~~**ee**~~<br>~~P|~~<br>~~P|~~|~~**ee**~~<br>~~P|~~<br>~~|~~<br>~~P|~~<br>||–<br>~~**ee**~~<br>~~| ~~<br>||–<br>~~**ee**~~<br> ~~|]~~<br>~~|]~~|E3H2-DS30C4M-M1<br>~~|]~~<br>~~|]~~|E3H2-DS30B4M-M1<br>~~|]~~<br>~~|]~~|
||100 mm<br>(fixed)<br>~~oe~~<br> ~~a~~||–<br>~~**ee**~~<br>~~P|~~|–<br>~~**ee** ~~<br>~~P|~~<br>||2 m<br> ~~**ee**~~<br>||–<br>~~**ee**~~<br>~~|]~~|E3H2-DS10C4M 2M<br>~~|]~~|E3H2-DS10B4M 2M<br>~~|]~~|
||||–<br>~~P|~~<br>~~a ~~|~~P|~~<br>|<br> ~~ee~~|–<br>| <br>~~ee~~|–<br> ~~|]~~<br>~~ee~~|E3H2-DS10C4M-M1<br>~~|]~~<br>~~ee~~|E3H2-DS10B4M-M1<br>~~|]~~<br>~~ee~~|



> *1. Models without teach-button are available. Contact your OMRON representative. 

> *2. Without reflector; order reflector separately 

M8 cylindrical housing 

|Sensor type<br>~~|~~<br>|<br>~~ee}~~|Sensing<br>distance<br>|<br>~~|~~|Operation mode<br>~~ene~~<br>~~|Li~~|Connection method<br>~~a~~<br>~~ene~~|Connection method<br>~~a~~<br>~~ene~~|Connection method<br>~~a~~<br>~~ene~~|Connection method<br>~~a~~<br>~~ene~~|Order code<br>~~ene~~<br>~~7.~~|Order code<br>~~ene~~<br>~~7.~~|
|---|---|---|---|---|---|---|---|---|
||||~~a~~<br>~~ene~~<br>~~Li~~|~~a~~<br>~~ene~~<br>~~Litt~~|~~a~~<br>~~ene~~<br>~~tt~~|~~ene~~<br>~~tt~~|NPN output<br>~~ene~~<br>~~7.~~<br>~~7~~|PNP output<br>~~ene~~<br>~~7.~~<br>~~7~~|
|Through-beam<br>~~|~~<br>~~ee}~~|2 m<br>~~|~~|dark on<br>~~|Li~~<br>~~ee~~|–<br>~~a~~<br>~~Li~~<br>~~ee~~|–<br>~~a~~<br>~~Litt~~<br>~~ee~~|2 m<br>~~a~~<br>~~tt~~<br>~~ee~~|–<br>~~tt~~<br>~~ee~~|E3H2-T2C2S 2M<br>~~7.~~<br>~~7~~<br>~~ee~~|E3H2-T2B2S 2M<br>~~7.~~<br>~~7~~<br>~~ee~~<br>~~ee~~|
||||~~Li~~<br>~~ee~~|–<br>~~Litt~~<br>~~ee~~|–<br>~~tt~~<br>~~ee~~|–<br>~~tt~~<br>~~ee~~|E3H2-T2C2S-M5<br>~~7~~<br>~~ee~~|E3H2-T2B2S-M5<br>~~7~~<br>~~ee~~<br>~~ee~~|
|||light on<br>~~| Li~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|–<br>~~Li~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|–<br>~~Litt~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|2 m<br>~~tt~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|–<br>~~tt ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|E3H2-T2C1S 2M<br> ~~7~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|E3H2-T2B1S 2M<br>~~7~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|
||||~~ee~~<br>~~ee~~|–<br>~~ee~~<br>~~ee~~|–<br>~~ee~~<br>~~ee~~|–<br>~~ee~~<br>~~ee~~|E3H2-T2C1S-M5<br>~~ee~~<br>~~ee~~|E3H2-T2B1S-M5<br>~~ee~~<br>~~ee~~<br>~~ee~~|



**E3H2** 

1 

## Accessories 

Reflectors Shape Type Material Features Size in mm Applicable Sensor Order code ~~po~~ General purpose - ABS base Surface screw 60x40x7.5 - Retro-reflective photoE39-R1S reflectors - Acrylic mounting electric sensors – non surface (diagonal holes) polarizing - Retro-reflective photoelectric sensors – poSmall size Surface screw 23x13.7x4.9 larizing (MSR) E39-R4 mounting Simple mounting Round shape Diameter: 84 E39-R7 with centered Depth: 7.4 mounting hole for simple screw ~~to~~ mounting ~~_~~ General purpose - Acrylic Self adhesive 40x35x0.6 E39-RS2 tape reflectors Pre cut ~~FEA E~~ Sensor I/O connectors Size Shape Type Features Material Order code Nut Cable ~~ee eee a~~ M8 General pur3 pin (LED Brass (CuZn) PVC 2 m XS3F-M08PVC3S2M XS3F-M08PVC3A2M pose optionally) PUR 2 m XS3F-M08PUR3S2M XS3F-M08PUR3A2M (screw) M12 General pur3 wire (LED Brass (CuZn) PVC 2 m XS2F-M12PVC3S2M XS2F-M12PVC3A2M pose optionally) PUR 2 m XS2F-M12PUR3S2M XS2F-M12PUR3A2M (screw) 4 wire PVC 2 m XS2F-M12PVC4S2M XS2F-M12PVC4A2M PUR 2 m XS2F-M12PUR4S2M XS2F-M12PUR4A2M ~~NB| eee~~ 

Note: For the complete list of sensor I/O connectors refer to E26E Accessories datasheet. 

Miniature Photoelectric Sensors 

2 

## Specifications 

|Item|Through-beam|Through-beam|Retro-reflective with<br>M.S.R.|Diffuse-reflective|Diffuse-reflective|
|---|---|---|---|---|---|
||E3H2-T4|E3H2-T2|E3H2-R|E3H2-DS30|E3H2-DS10|
|Sensing distance|4 m (adjustable)|2 m|2 m (teachable)<br>(when using E39-<br>R1S)|300 mm<br>(teachable)|100 mm (fixed)|
|Differential travel|20% max of sensing<br>distance|10% max of sensing distance||||
|Light source<br>(wave length)|Infrared LED (880 nm)||Red LED (660 nm)|Infrared LED (880 nm)||
|Power supply<br>voltage|10 to 30 VDC, 10% ripple|||||
|Current consumption|45 mA max|||||
|Control output|Load current: 100 mA max. (residual voltage 2 V max.);<br>E3H2-_C_: NPN<br>E3H2-_B_: PNP|||||
||Light-on/dark-on<br>selectable by wire|E3H2-T2_2_: dark<br>on<br>E3H2-T2_1_: light<br>on|Light-on/dark-on selectable by wire|||
|Protective circuits|Power supplyreverse polarityprotection, output short circuit protection|||||
|Response time|Operation or reset:<br>2.5 ms max|Operation or reset:<br>1 ms max.|Operation or reset: 1.1 ms max|||
|Sensitivity<br>adjustment|Potentiometer<br>adjuster|–|Teach-in||–|
|Ambient illumination|Incandescent lamp: 1500 lx max.; Sunlight: 5000 lx max.|||||
|Ambient temperature|Operating:<br>-25 to +55°C|Operating:<br>-25 to +50°C|Operating: -25 to +55°C|||
|Degree of protection|EN 60529: IP67|||||
|Indicators|Emitter: Power supply indicator: yellow<br>Receiver: Operation indicator:yellow||Output indicator: yellow|||
|Weight<br>pre-wired<br>connector|approx 110 g<br>approx 40g|approx 90 g<br>approx 30g|approx 55 g<br>approx 20g|||
|Material<br>case<br>lens|nickel-plated brass<br>plastic|stainless steel<br>plastic|nickel-plated brass<br>plastic|||



**E3H2** 

3 

## Operation 

## Sensitivity adjustment 

## E3H2-T4 

The emitter of the E3H2-T4 allows an adjustment of the emitted amount of light by turning the potentiometer. Turn the potentiometer clockwise for increasing the amount of emitted light and counter-clockwise for decreasing the amount of emitted light. 

## E3H2-R2 

- a) standard mode To teach the retro-reflective model E3H2-R, place the sensor with the lens facing the reflector. Press the teach button for 2- 5 seconds. For remote teach connect the white wire (Pin 2) for 2-5 seconds to common (-). 

   - The threshold is now set to 50% of the received light level. 

- b) high sensitivity mode (e.g. for semi-transparent models) To teach the retro-reflective model E3H2-R in high sensitivity mode, place the sensor with the lens facing the reflector. Press the teach button for >8 seconds. For remote teach connect the white wire (Pin 2) for >8 seconds to common (-). The threshold is now set just below the received light level. 

If the teaching was successful the LED should no longer be flashing and a state change occurs when the light is interrupted. 

## E3H2-DS30 

- a) standard mode To teach the diffuse-reflective model E3H2-DS30, place the object in front of the sensor at the required sensing distance. Press the teach button for 2-5 seconds. For remote teach connect the white wire (Pin 2) for 2-5 seconds to common (-). The threshold is now set to 50% of the received light level. When the object is removed, a state change at the sensor should occur. If this is not the case the high sensitivity mode may be required. 

## Operation mode selection 

The light-on / dark-on operation mode can be selected by wire (except for E3H2-T2). The white wire (Pin 2) can be connected to plus (+), common (-) or left open (not connected) for the default setting. 

|a)|E3H2-T4 Receiver||
|---|---|---|
||Default setting (wire left open):DARK-ON||
||Connected to plus (+):|LIGHT-ON|
||Connected to common (-):|DARK-ON|
|b)|E3H2-R2||
||Default setting (wire left open):DARK-ON||
||Connected to plus (+):<br>Connected to common (-):|LIGHT-ON<br>TEACH*1|
|c)|E3H2-DS30||
||Default setting (wire left open):LIGHT-ON||
||Connected to plus (+):<br>Connected to common (-):|DARK-ON<br>TEACH*1|
|d)|E3H2-DS10||
||Default setting (wire left open):LIGHT-ON||
||Connected to plus (+):|DARK-ON|
||Connected to common (-):|LIGHT-ON|



For E3H2-T2 the operation mode is fixed and models with lighton and dark-on operation are available. 

   - *1 In case the remote teach operation is required when the white wire is connected to plus (+), add a 2.2 kΩ resistor between the white wire and (+) to avoid a short circuit. 

- b) high sensitivity mode 

To teach the diffuse-reflective model E3H2-DS30 in high sensitivity mode, place the object in front of the sensor at the required sensing distance. Press the teach button for >8 seconds. For remote teach connect the white wire (Pin 2) for >8 seconds to common (-). 

The threshold is now set just below the received light level. When the object is removed, a state change at the sensor should occur and the LED should no longer be flashing. 

For E3H2-T2 and E3H2-DS10 the sensitivity setting is fixed. 

Miniature Photoelectric Sensors 

4 

## Engineering data (typical) 

**==> picture [511 x 413] intentionally omitted <==**

**----- Start of picture text -----**<br>
Parallel operating range<br>Through-beam models Retroreflective models<br>E3H2-T4 E3H2-T2 E3H2-R2<br>200 250 40<br>200<br>150<br>100 20<br>100<br>50<br>0 0 0<br>-50<br>-100<br>-100 -20<br>-150<br>-200<br>-200 -250 -40<br>0 1 2 3 4 5 0.00 0.50 1.00 1.50 2.00 2.50 0 1 2<br>Distance X (m) Distance X (m) Distance X (m)<br>Operating range<br>Diffuse reflective models<br>E3H2-DS30 E3H2-DS10<br>20 20<br>White paper 90%<br>White paper 90%<br>10 10<br>0 0<br>-10 -10<br>Gray paper 18%<br>Gray paper 18%<br>-20 -20<br>0 10 20 30 0 2 4 6 8 10<br>Distance  X (cm) Distance X (cm)<br>Distance Y (mm) Distance Y (mm) Distance Y (mm)<br>Distance  Y (mm) Distance (mm)<br>**----- End of picture text -----**<br>


Excess gain vs. distance 

Through-beam models E3H2-T4 

## E3H2-T2 

## Retroreflective Models E3H2-R2 

**==> picture [501 x 160] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000 100 1000<br>100 100<br>10<br>10 10<br>1<br>1 1<br>0 0 0<br>0 1 2 3 4 5 0,00 0,50 1,00 1,50 2,00 2,50 0 1 2<br>Distance  (m) Distance  (m) Distance  (m)<br>Gain Excess Gain Excess Gain<br>**----- End of picture text -----**<br>


**E3H2** 

5 

**==> picture [331 x 186] intentionally omitted <==**

**----- Start of picture text -----**<br>
Diffuse reflective Models<br>E3H2-DS30 E3H2-DS10<br>100 1000<br>White paper 90%<br>100<br>10 White paper 90%<br>10<br>Gray paper 18%<br>1<br>Gray paper 18%<br>1<br>0 0<br>0 10 20 30 0 2 4 6 8 10 12<br>Distance  X (cm) Distance  (cm)<br>Gain Excess Gain<br>**----- End of picture text -----**<br>


Miniature Photoelectric Sensors 

6 

## Output Circuit Diagram 

## PNP Output 

|Model|Operation<br>mode|Timing charts|Timing charts|||Mode<br>selector switch|Mode<br>selector switch|Output circuit|Output circuit|Output circuit|Output circuit|Output circuit|Output circuit|Output circuit|Output circuit|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|E3H2-T4B@<br>E3H2-R2B@<br>E3H2-D@B@|Light ON|Light Incident<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Reset<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)||||For through-<br>beam and retro-<br>reflective: con-<br>nect the white<br>wire (Pin 2) to the<br>brown wire<br>(Pin 1).<br>For diffuse-re-<br>flective: open (do<br>not connect) the<br>white wire<br>(Pin 2).||4<br>1<br>3<br>0 V<br>ZD<br>Operation<br>indicator<br>(Yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>(Control<br>output)<br>10 to 30 VDC<br>Brown<br>Black<br>Blue<br>White<br>100 mA<br>max.<br>Load<br>(Relay)<br>Through-beam receiver, retro-reflective,<br>diffuse-reflective<br>2<br>Mode Selection /<br>Teach<br>1<br>2<br>3<br>4<br>**Connector Pin Arrangement**||||||||
||||||||||Operation<br>indicator<br>(Yellow)|Photo-<br>electric<br>Sensor<br>Main<br>Circuit||||||
||||||||||||||||4<br>1<br>ZD|
||||||||||||Photo-<br>electric<br>Sensor<br>Main<br>Circuit|||||
||Dark ON|Light Incide<br>Light Interrupte<br>O<br>OF<br>O<br>OF<br>Operat<br>Res<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)||nt<br>d<br>N<br>F<br>N<br>F<br>e<br>et||For through-<br>beam and retro-<br>reflective: open<br>(do not connect)<br>the white wire<br>(Pin 2).<br>For diffuse-re-<br>flective: connect<br>the white wire<br>(Pin 2) to the<br>brown wire (Pin<br>1).||||||||||
|||||||||||**Connect**||||||
|||||||||||||||||
||3<br>1<br>Through-beam emitter<br>Power<br>indicator<br>(yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>Brown<br>Blue<br>10 to 30 VDC|||||||||**Connector**<br>|||**Pin Arrangement**<br>1<br>2<br>3<br>4|||
||||1<br>Power<br>indicator<br>(yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit|||||||||||||
||||||||Blue|||||||||
||||||Photo-<br>electric<br>Sensor<br>Main<br>Circuit|||||||||||
|||||||||||||||||
|||||||||||||||||
|E3H2-T2B@|Light ON|||||n.a. fixed for<br>E3H2-T2B1@||Through-beam receiver<br>Operation<br>indicator<br>(Yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>**Connect**|||||4<br>1<br>3<br>0 V<br>ZD<br>(Control<br>output)<br>10 to 30 VDC<br>Brown<br>Black<br>Blue<br>100 mA<br>max.<br>Load<br>(Relay)<br>4<br>1<br>3<br>**or Pin Arrangement**|||
|||Light Incident<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Reset<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)||||||||||||||
||||||||||Operation<br>indicator<br>(Yellow)|Photo-<br>electric<br>Sensor<br>Main<br>Circuit|||1|||
||||||||||||||||4<br>ZD<br>|
|||||||||||||||||
||||||||||||Photo-<br>electric<br>Sensor<br>Main<br>Circuit|||||
||Dark ON|Liht Iid||t||n.a. fixed for<br>E3H2-T2B2@||||||||||
|||g nce<br>Light Interrupte<br>O<br>OF<br>O<br>OF<br>Operat<br>Res<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)||<br>d<br>N<br>F<br>N<br>F<br>e<br>t||||||||||||
|||||||||||**Connect**||||||
|||||||||||||||||
|||||||||||||||||
||3<br>1<br>Through-beam emitter<br>Power<br>indicator<br>(yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>Brown<br>Blue<br>10 to 30 VDC||||||||||||4<br>1<br>3<br>**Pin Arrangement**|||
|||||||||||**Connector**||||||
|||||||||||||||||



**E3H2** 

7 

## NPN Output 

|Model|Operation<br>mode|Timing charts|||Mode<br>selector switch|Output circuit|Output circuit|Output circuit|Output circuit|
|---|---|---|---|---|---|---|---|---|---|
|E3H2-T4C@<br>E3H2-R2C@<br>E3H2-D@C@|Light ON|Light Incident<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Reset<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)|t<br>||For through-<br>beam and retro-<br>reflective:<br>connect the<br>white wire (Pin 2)<br>to the brown wire<br>(Pin 1).<br>For diffuse-re-<br>flective:<br>open (do not con-<br>nect) the white<br>wire(Pin 2).|4<br>3<br>1<br>0 V<br>ZD<br>10 to 30 VDC<br>Brown<br>Operation<br>indicator<br>(Yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>(Control<br>output)<br>100 mA<br>max.<br>Black<br>Blue<br>Load<br>(Relay)<br>Through-beam receiver, retro-reflective,<br>diffuse-reflective<br>White<br>2<br>Mode Selection /<br>Teach<br>1<br>2<br>3<br>4<br>**Connector Pin Arrangement**||||
|||||||||||
||||<br><br>|||||||
|||||||||||
|||||||||||
|||||||||||
||||||||Operation<br>indicator<br>(Yellow)||ZD<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>(Control<br>output)<br>2<br>Mode Selection /<br>Teach|
|||||||||||
||Dark ON|Light Inciden<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Rese<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)|t<br>||For through-<br>beam and retro-<br>reflective:<br>open (do not con-<br>nect) the white<br>wire (Pin 2).<br>For diffuse-re-<br>flective:<br>connect the<br>white wire (Pin 2)<br>to the brown wire<br>(Pin 1)|||||
|||||||||||
|||||||||||
||||<br>|||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
|||||3<br>1<br>Through-beam emitter<br>Power<br>indicator<br>(yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>Brown<br>Blue|||||10 to 30 VDC<br>**Connector Pin Arrangement**<br>1<br>2<br>3<br>4|
|||||||Blue||||
|||||||||||
|||||||||||
|E3H2-T2C@|Light ON|Light Incident<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Rt<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)|t<br>||n.a. - fixed for<br>E3H2-T2C1@|4<br>3<br>1<br>0 V<br>ZD<br>Through-beam receiver<br>10 to 30 VDC<br>Brown<br>Operation<br>indicator<br>(Yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>(Control<br>output)<br>100 mA<br>max.<br>Black<br>Blue<br>Load<br>(Relay)<br>4<br>1<br>3<br>**Connector Pin Arrangement**||||
|||||||||||
||||<br><br>|||||||
|||||||||||
|||||||||||
||Dark ON|ese<br> <br>Light Inciden<br>Light Interrupted<br>ON<br>OFF<br>ON<br>OFF<br>Operate<br>Rese<br>Operation indicator<br>(yellow)<br>Output transistor<br>Load<br>(e.g. relay)|t<br>||n.a. - fixed for<br>E3H2-T2C2@|||||
|||||||||||
||||<br>|||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
|||||||||||
||3<br>1<br>Through-beam emitter<br>Power<br>indicator<br>(yellow)<br>Photo-<br>electric<br>Sensor<br>Main<br>Circuit<br>Brown<br>Blue<br>10 to 30 VDC||||||||4<br>1<br>3<br>**Connector Pin Arrangement**|



Miniature Photoelectric Sensors 

8 

## Dimensions 

**==> picture [511 x 520] intentionally omitted <==**

**----- Start of picture text -----**<br>
Note: All units are in millimeters unless otherwise stated.<br>    Pre-wired models           Connector models<br>E3H2-T4<br>Emitter 54.5 65.5<br>4.4 12.3 4 2 4.4 22.3 1<br>Potentiometer  Potentiometer<br>Power inidcator (yellow) adjuster Power inidcator (yellow) adjuster<br>E3H2-T4<br>Receiver Operation indicator (yellow) Operation indicator (yellow)<br>2.8<br>55.3 66.3<br>E3H2-T2<br>Emitter/ 49 Emitter: (54)<br>power indicator (yellow)<br>Receiver 1 42.7 Receiver: 1 38.3 8.7 6<br>operation indicator (yellow)<br>n° 4 x Ø2 Emitter:<br>9.5 power indicator (yellow)<br>Receiver:<br>operation indicator (yellow)<br>E3H2-R2<br>55 4 66<br>2.5 34 17.7 0.8 2.5 34 22 6.5 1<br>Operation indicator (yellow) Teach button Operation indicator (yellow) Teach button<br>E3H2-D<br>54.5 65.5<br>4.4 12.3 4 2 4.4 22.3 1<br>Teach button<br>Operation inidcator (yellow) (E3H2-DS30 only) Operation inidcator (yellow) Teach button  (E3H2-DS30 only)<br>Ø3.75<br>Ø6.5 M8x1<br>M8x0.75 M8x0.75<br>Ø3.1<br>M12x1 M12x1 M12x1<br>Ø3.75<br>**----- End of picture text -----**<br>


**E3H2** 

9 

## Safety precautions 

## ! Warning 

This product is not designed or rated for directly or indirectly ensuring safety of persons. Do not use it for such a purpose. 

**==> picture [33 x 33] intentionally omitted <==**

## ! Caution 

Do not use the product with voltage in excess of the rated voltage. Excess voltage may result in malfunction or fire. 

Never use the product with an AC power supply. Otherwise, explosion may result. 

When cleaning the product, do not apply a high-pressure spray of water to one part of the product. Otherwise, parts may become damaged and the degree of protection may be degraded. 

High-temperature environments may result in burn injury. 

## Precautions for Safe Use 

The following precautions must be observed to ensure safe operation of the Sensor. 

## Operating Environment 

Do not use the Sensor in an environment where explosive or flammable gas is present. 

## Connecting Connectors 

Be sure to hold the connector cover when inserting or removing the connector. Be sure to tighten the connector lock by hand; do not use pliers or other tools. If the tightening is insufficient, the degree of protection will not be maintained and the Sensor may become loose due to vibration. The appropriate tightening torque is 0.4 to 0.5 N·m for M12 connectors and 0.3 Nm for M8 connectors. 

## Load 

Do not use a load that exceeds the rated load. 

## Environements with Cleaners and Disinfectants 

Do not use the Sensor in environments subject to cleaners and disifectants. They may reduce the degree of protection. 

## Modifications 

Do not attempt to disassemble, repair, or modify the Sensor. Outdoor Use 

## Precautions for Correct Use 

Do not use the Sensor in any atmosphere or environment that exceeds the ratings. 

Do not install the Sensor in the following locations. 

- (1)Locations subject to direct sunlight 

- (2)Locations subject to condensation due to high humidity 

- (3)Locations subject to corrosive gas 

- (4)Locations where the Sensor may receive direct vibration or shock 

## Connecting and Mounting 

- (1)The maximum power supply voltage is 30 VDC. Before turning the power ON, make sure that the power supply voltage does not exceed the maximum voltage. 

- (2)Laying Sensor wiring in the same conduit or duct as high-voltage wires or power lines may result in malfunction or damage due to induction. As a general rule, wire the Sensor in a separate conduit or use shielded cable. 

- (3)Use an extension cable with a minimum thickness of 1 mm[2] and less than 100 m long. 

- (4)Do not pull on the cable with excessive force. 

- (5)Pounding the Photoelectric Sensor with a hammer or other tool during mounting will impair water resistance. 

- (6)Mount the Sensor either using the bracket (sold separately) or on a flat surface. 

- (7)Be sure to turn OFF the power supply before inserting or removing the connector. 

## Cleaning 

Never use thinner or other solvents. Otherwise, the Sensor surface may be dissolved. 

## Power Supply 

If a commercial switching regulator is used, ground the FG (frame ground) terminal. 

## Power Supply Reset Time 

The Sensor will be able to detect objects 150 ms after the power supply is tuned ON. Start using the Sensor 150 ms or more after turning ON the power supply. If the load and the Sensor are connected to separate power supplies, be sure to turn ON the Sensor first. 

## Turning OFF the Power Supply 

Output pulses may be generated even when the power supply is OFF. Therefore, it is recommended to first turn OFF the power supply for the load or the load line. 

## Load Short-circuit Protection 

This Sensor is equipped with load short-circuit protection, but be sure to not short circuit the load. Be sure to not use an output current flow that exceeds the rated current. 

## Water Resistance 

Do not use the Sensor in water, rainfall, or outdoors. 

Do not use the Sensor in locations subject to direct sunlight. Cleaning 

Do not use thinner, alcohol, or other organic solvents. Otherwise, the optical properties and degree of protection may be degraded. Surface Temperature 

Burn injury may occur. The Sensor surface temperature rises depending on application conditions, such as the surrounding temperature and the power supply voltage. Use caution when operating or washing the Sensor. 

Miniature Photoelectric Sensors 

10 

**E3H2** 

11 

## WARRANTY 

OMRON’s exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. 

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. 

## LIMITATIONS OF LIABILITY 

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. 

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. 

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS 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 OR REPAIR. 

## SUITABILITY FOR USE 

THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs for OMRON's safety rated products. 

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer’s application or use of the product. 

At the customer’s request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. 

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: 

- Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document. 

- Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. 

- Systems, machines, and equipment that could present a risk to life or property. 

- Please know and observe all prohibitions of use applicable to the products. 

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

## PERFORMANCE DATA 

Performance data given in this document 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON 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 model 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 model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. 

## DIMENSIONS AND WEIGHTS 

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. ERRORS AND OMISSIONS 

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. PROGRAMMABLE PRODUCTS 

OMRON shall not be responsible for the user’s programming of a programmable product, or any consequence thereof. 

Cat. No. E64E-EN-01B **In the interest of product improvement, specifications are subject to change without notice.** 

## **OMRON EUROPE B.V.** 

Wegalaan 67-69, NL-2132 JD, Hoofddorp, The Netherlands Phone: +31 23 568 13 00 Fax: +31 23 568 13 88 www.industrial.omron.eu 

Miniature Photoelectric Sensors 

12