no: ph-130 product: e3t- sr3 photoelectric sensor date: june 2010 type: discontinuation notice e3t-sr3 photoelectric sensors discontinued march 2010; use e3t-sr4 sensor and e39-r37-ca reflector instead omron completed its discontinuation of e3t-sr3 se ries retroreflective sensor march 2010. for most applications the e3t-sr4 series can be a direct replacement. however, the optics changed from separate lenses for emitter and receiver in e3 t-sr3 to a coaxial lens arrangement in e3t-sr4. the change in optics also affects the choice of re flectors: only models that end in ?-ca? can be used with e3t-sr4. when changing e3t-sr3 sensors, the e39-r37 reflector also must be changed. product discontinuation recommended replacement rertroreflective photoelectric sensors e3t-sr31 2m e3t-sr41-s 2m e3t-sr32 2m e3t-sr42-s 2m e3t-sr33 2m e3t-sr43-s 2m e3t-sr34 2m e3t-sr44-s 2m e3t-sr31 5m e3t-sr41-s 5m e3t-sr32 5m e3t-sr42-s 5m e3t-sr33 5m e3t-sr43-s 5m e3t-sr34 5m e3t-sr44-s 5m e3t-sr31r 2m e3t-sr41r-s 2m e3t-sr32r 2m e3t-sr42r-s 2m e3t-sr33r 2m e3t-sr43r-s 2m e3t-sr34r 2m e3t-sr44r-s 2m e3t-sr33 15m e3t-sr43-s 15m e3t-sr31-econ 0.3m e3t-sr41-econ-s 0.3m e3t-sr32-econ 0.3m e3t-sr42-econ-s 0.3m e3t-sr31-econ 2m e3t-sr41-econ-s 2m e3t-sr32-econ 2m e3t-sr42-econ-s 2m e3t-sr31-m1tj 0.3m e3t-sr41-m1tj-s 0.3m e3t-sr32-m1tj 0.3m e3t-sr42-m1tj-s 0.3m e3t-sr33-m1tj 0.3m e3t-sr43-m1tj-s 0.3m e3t-sr34-m1tj 0.3m e3t-sr44-m1tj-s 0.3m e3t-sr31-m3j 0.3m e3t-sr41-m3j-s 0.3m e3t-sr32-m5j 0.3m e3t-sr42-m5j-s 0.3m e3t-sr33-m5j 0.3m e3t-sr43-m5j-s 0.3m e3t-sr34-m5j 0.3m e3t-sr44-m5j-s 0.3m e3t-sr34-m5j 1m e3t-sr44-m5j-s 1m e3t-sr31-c 2m e3t-sr41-c 2m e3t-sr31-c 5m e3t-sr41-c 5m e3t-sr31-c1 0.3m e3t-sr41-c1 0.3m reflectors e39-r37 e39-r37-ca E39-RS1 * E39-RS1-ca e39-rs2 * e39-rs2-ca e39-rs3 * e39-rs3-ca * these reflectors are not discontinued, but they are not compatible with e3t-sr4 sensors.
2 cautions for migrating to e3t-sr4 because the optics are different, omron recommends testing e3t-sr4 under operating conditions to confirm the results are the same as for discontinued e3t-sr3 sensors. in the following applications, the e3t-sr4 may perform differently than the old sensor and present difficulty in replacement: ? detecting transparent or semitransparent objects ? detecting at a longer set distance than the rated sensing distance ? using the sensor in positioning see the detailed explanation of changes below. ch anges in characteristics and operation ratings most affect the performance. body color product discontinuation e3t-sr3_ recommended replacement e3t-sr4_ there is a small change in the front face. left front right left of picture: e3t-sr3_ (product discontinuation) right of picture: e3t-sr4_ (recommended replacement) product discontinuation e39-r37 recommended replacement e39-r37-ca there is a small change in the pattern of reflective surface. left side of picture: e39- r37 (product discontinuation) right side of picture: e 39-r37-ca (recommended replacement)
3 optional reflectors for e3t-sr3* E39-RS1 e39-rs2 e39-rs3 * products are not discontinued. recommended replacement E39-RS1-ca e39-rs2-ca e39-rs3-ca there is little change in the pa ttern of reflective surface. e39-rs_ e39-rs_-ca (recommended replacement) outside dimensions and mounting dimensions product discontinuation e3t-sr3_ recommended replacement e3t-sr4_ 6. 5(*) 4. 0 (* ) t h e re i s th e e rro r i n w ri ti ng about outsi de di m ensi on of the catal ogue. n ow w e are correcti n g th e c a ta l ogue and the draw i ng. it is fully compatible for the outside dimension and the mounting dimension. the position of emitter lens is slightly changed. the emitter lens position of e3t- sr4_ is lower by 0.5 mm than of e3t-sr3_. and there is the lens (the emitter and receiver lens is common.) of e3t-sr4_ between the emitter and the receiver lens of e3t-sr3_. so, for the almost applications, there is no problem making the replacement. but we recommend te sting under the use conditions. product discontinuation e39-r37 recommended replacement e39-r37-ca it is fully compatible.
4 optional reflectors for e3t-sr3* E39-RS1 e39-rs2 e39-rs3 * products are not discontinued. recommended replacement E39-RS1-ca e39-rs2-ca e39-rs3-ca it is fully compatible. ratings and specifications please note the available reflectors with each sensor. product discontinuation e3t-sr3_ recommended replacement e3t-sr4_ sensing distance 10 to 100mm (using reflector e39-r37) 10 to 100mm (using reflector e39-r37-ca) 30 to 200mm (using the reflector e39-r4) standard sensing object opaque, 27-mm dia. min minimum detectable object (typical) opaque, 2-mm dia. (sensing distance of 100mm) directional angle 2 to 20 light source red led (wavelength = 650nm) power supply voltage 12 to 24 vdc +/-10%, ripple (p-p) 10% max. current consumption 20 ma max. control output load power supply voltage: 26.4 vdc max. load current: 50 ma max. residual voltage: 2 v max. for load current of 10 to 50 ma 1 v max. for load current of less than 10 ma open-collector output light on: e3t-sr_1 / -sr_2 dark on: e3t-sr_3 / -sr_4 protection circuits power supply and control output reverse polarity protection output short-circuit protection mutual interference prevention response time operate or reset: 1ms max. ambient illumination incandescent lamp: 5,000 lx max. sunlight: 10,000 lx max. ambient temperature range operating: -25 to 55c storage: -40 to 70c (with no icing or condensation) ambient humidity range operating: 35 to 85% storage: 35% to 95% (with no condensation) insulation resistance 20m min. at 500 vdc
5 ratings and specifications please note the available reflectors with each sensor. product discontinuation e3t-sr3_ recommended replacement e3t-sr4_ dielectirc strength 1,000 vac, 50/60 hz for 1minute vibration resistance destruction: 10 to 2,000 hz, 1.5-mm double amplitude or 300 m/s 2 for 0.5 hrs each in x, y, and z directions shock resistance destruction: 1,000 m/s 2 3 times each in x, y, and z directions degree of proteciton ip67 (iec60529) connection method pre-wired (standard length: 2 m) weight approx. 40 g case pbt (polybutylene terephthalate) display window denatured polyarylate materials lens methacrylic resin accessories instruction manual installation phillips screws, nuts, spring washers, flat washers reflector (refer to the table below) model attached reflector e3t-sr3_ e39-r37 e3t-sr3_-c nothing instruction manual installation phillips screws, nuts, spring washers, flat washers reflector (refer to the table below) model attached reflector e3t-sr4_-s e39-r37-ca e3t-sr4_ e39-r4 e3t-sr4_-c nothing wire connection product discontinuation e3t-sr31 / -sr32 recommended replacement e3t-sr41 / -sr42 it is fully compatible. product discontinuation e3t-sr33 / -sr34 recommended replacement e3t-sr43 / -sr44 it is fully compatible.
6 reflector e3t-sr4 is not compatible with the reflectors for e3t-sr3. please replace both sensor and reflector . type sensing distance product discontinuation e3t-sr3_ recommended replacement e3t-sr4_ 30 to 200mm nothing e39-r4 (supplied with e3t-sr4_) small reflector 10 to 100mm e39-r37 (attached to e3t-sr3_) e39-r37-ca (supplied with e3t-sr4_-s 10 to 100mm E39-RS1 * (not supplied with sensor) E39-RS1-ca (not supplied with sensor) 10 to 100mm e39-rs2 * (not supplied with sensor) e39-rs2-ca (not supplied with sensor) tape reflector 10 to 100mm e39-rs3 * (not supplied with sensor) e39-rs3-ca (not supplied with sensor) *not product discontinuation characteristics the optics of e3t-sr4_ is changed and improved from e3t-sr3_. at the rated sensing distance, the excess gain of e3t-sr4_ is higher than of e3t-sr3_. and the maximum sensing distance of e3t-sr4_ is shorte r than of e3t-sr3_. but e3t-sr4_ is the same as e3t-sr3_ for the rating sensing distance. please refer to the graph below for the detail. for almost applications, there is no problem of the replacement. but, for the applications below, there might be some problems of the replacement. so we recommend testing under the using condition. > the case of detecting transparent or semitransparent objects it might not be possible to detecting them, because the excess gain of e3t-sr4_ is higher than of e3t-sr3_. please examine to replace to the sensor that have function of sens itivity adjustment (ex. fiber sensor). > the case of detecting at longer set distance than the rating sensing distance the sensing distance might not be enough, because the maximum sensing distance of e3t-sr4_ is shorter than of e3t-sr3_. if it is possible to replace to through-beam type, please examine e3t-st/- ft. if it is necessary to replace to retr o-reflective type, please examine e3z-r. > the case of using in positioning the position of detecting might be changed, because t here is some difference for the characteristic and the lens position. please examine to change and adjust the mounting position.
7 excess gain vs. set distance please refer to the graph below. blue line: e3t-sr4_ (recommended replacement) red line: e3t-sr3_ (product discontinuation) about the difference between e3t-sr4_ and e3t-sr3_ > for the rating sensing distance (set distance: 10 to 100 mm), the excess gain of e3t-sr4_ is higher than of e3t-sr3_. > for over the rating sensing distance (set distance: over 100 mm), the excess gain of e3t-sr4_ is less than of e3t-sr3_. and the maximum sensing distance of e3t-sr4_ is shorter than of e3t-sr3_. ecxess gain vs. set distance 1 10 100 0 100 200 300 400 500 600 700 set distance (mm) ecxess gain ratio e3t-sr4 + e39-r37-ca e3t-sr3 + e39-r37 ecxess gain vs. set distance0 to 150 mm set distance 1 10 100 0 50 100 150 set distance (mm) ecxess gain ratio e3t-sr4 + e39-r37-ca e3t-sr3 + e39-r37
8 parallel operating range please refer to the graph below. blue line: e3t-sr4_ (recommended replacement) red line: e3t-sr3_ (product discontinuation) about the difference between e3t-sr4_ and e3t-sr3_ > for the rating sensing distance (set distance: 10 to 100 mm), it is fully compatible at the rating sensing distance. > for over the rating sensing distance (set distance: over 100 mm), the operating range of e3t-sr4_ is smaller than of e3t-sr3_. and the maximum sensing distance of e3t-sr4_ is shorter than of e3t-sr3_. parallel operating range -20 -15 -10 -5 0 5 10 15 20 0 100 200 300 400 500 600 700 distance x (mm) distance y (mm) e3t-sr4 + e39-r37-ca e3t-sr3 + e39-r37 parallel operating range 0 to 150 mm distance x -20 -15 -10 -5 0 5 10 15 20 0 50 100 150 distance x (mm) distance y (mm) e3t-sr4 + e39-r37-ca e3t-sr3 + e39-r37
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