2 e3a2 e3a2 slim sensor with plug-in outputs, built-in time delays plug-in replaceable outputs light-on/dark-on operation, switch selectable optional solid-state outputs polarized diffuse and through-beam models timer models provide selectable on-delay, off-delay and one-shot outputs standard with 3 a relay output ac/dc supply with timer models e3a2 ordering information method of detection through-beam retroreflective diffuse reflective sensing distance 10 m (32.8 ft) 3 m (9.8 ft) 70 cm (27.6 in) part number without timer e3a2-10m4 e3a2-r3m4 e3a2-ds70m4 on-delay, off-delay, one-shot e3a2-10m4t e3a2-r3m4t e3a2-ds70m4t equal on- and off-delays (0.1 to 5 seconds) independent on-delays and e3a2-10m4d e3a2-r3m4d e3a2-ds70m4d off-delays (0.1 to 5 seconds) sensors description part number solid-state ac (scr) output module; 200 ma, 250 vac max. load g3k-2r2p-1 output dc npn output module; 200 ma, 30 vdc max. load, dual complementary g3kd-yr2p-1 modules dc pnp output module; 200 ma, 30 vdc max. load, dual complementary g3kd-yr2p-2 reflector adapter for stud-mounting e39-r1 reflector e39-l7 accessories description part number relay output module, spdt, 3 a at 250 vac (output supplied with each sensor) g6c-2117p-dc8 reflector (supplied with retroreflective sensor) e39-r1 mounting bracket (supplied with each sensor) e39-l34 replacement parts
3 e3a2 e3a2 specifications part number e3a2-10 e3a2-r3 e3a2-ds70 method of detection through-beam retroreflective diffuse reflective supply voltage 24 to 240 vac, 50/60 hz; 12 to 240 vdc power relay output type emitter: 0.82 w max. 1.5 w max. consumption dc solid-state output type receiver: 1.2 w max. ac solid-state output type emitter: 0.82 va max. 2 va max. receiver: 1.2 va max. sensing distance 10 m (32.8 ft) 3 m (9.8 ft) 70 cm (27.6 in) with with e39-r1 reflector 10 x 10 cm (3.94 x 3.94 in) (included) 90% reflectance white mat paper light source pulse modulated pulse modulated red pulse modulated infrared led (950 nm) led, polarized (680 nm) infrared led (950 nm) detectable object type opaque materials, opaque and mirror opaque and 26 mm (1.02 in) surface materials, 56 mm translucent materials minimum dimension (2.20 in) min. dimension operation mode light-on/dark-on, switch selectable sensitivity fixed adjustable mutual interference protection not provided provided control relay type spdt with g6c-2117p-dc8 output module (standard) output max. load 3 a, 250 vac (p.f. = 1); 3 a, 30 vdc ac type scr with g3k-2r2p-1 output module (optional) solid- max. load 200 ma, 250 vac state min. load 5 ma max. inrush 2 a off-state leakage current 1 ma max. dc type npn-spdt with g3kd-yr2p-1 output module (optional) solid- pnp-spdt with g3kd-yr2p-2 output module (optional) state max. load 200 ma, 30 vdc max. on-state voltage drop 2 vdc at 200 ma response relay 15 ms max. with g6c-2117p-dc8 output module (standard) time (on ac solid-state output 30 ms max. with g3kd-2r2p-1 output module (optional) and off) dc solid-state 1 ms max. with g3kd-yr2p-1 or -2 output modules (optional) timing type e3a2- t normal, on-delay, off-delay, one-shot or equal on- and off-delays, functions switch selectable type e3a2- d independent on- and off-delays range 0.1 to 5 seconds circuit protection output short-circuit provided (ac solid-state and dc solid-state output modules only) dc power supply reverse provided polarity indicators emitter: light incident (red led) and output stability power on (red led) (green led); receiver: light incident output operation (yellow led) on timer-equipped (red led) and output sta- models bility (green led); output operation (yellow led) on timer-equipped models materials lens plastic case plastic mounting side surface mount with two through holes; e39-l34 bracket and hardware included connections conduit 1/2-14 npt wire terminal screws weight emitter: 200 g (7.1 oz) 200 g (7.1 oz) receiver: 200 g (7.1 oz) (table continues on the next page)
4 e3a2 e3a2 part number e3a2-10 e3a2-r3 e3a2-ds70 enclosure ratings nema 1, 4, 4x, 12 iec 144 ip66 approvals ul listed, file number e41515 ambient operating -25 to 55 c (-13 to 131 f) temperature storage -30 to 70 c (-22 to 159 f) specifications table - continued from previous page connections through-beam type retroreflective and diffuse reflective types output circuit diagrams relay output ac solid-state output dc solid-state pnp output dc solid-state npn output light source receiver 24 to 240 vac 12 to 240 vdc 24 to 240 vac 12 to 240 vdc see output circuit diagrams see output circuit diagrams 24 to 240 vac 12 to 240 vdc
5 e3a2 e3a2 timing chart note: 1. for sensors without built-in timer functions, operation follows the norm mode shown with multi- function time delay models. 2. t 1 , t 2 and t denote set time, variable within 0.1 to 5 second range. 3. for multifunction time delay models (part numbers ending in ??, the on- and off-delay time settings will be the same. 4. for on- and off-delay models (part numbers ending in ??, t 1 and t 2 are independently variable. 5. o.s.d.: one shot delay
6 e3a2 e3a2 excess gain ratio through-beam type engineering data light source/receiver setting range through-beam type distance x [m (ft)] distance y [cm (in)] reflector setting range retroreflective type distance x [m (ft)] distance y [mm (in)] operating range diffuse reflective type distance x [cm (in)] distance y [mm (in)] detecting distance vs. minimum target size (at maximum sensitivity) diffuse reflective type area of detectable object [cm 2 (in 2 )] detecting distance [cm (in)] excess gain ratio distance [m (ft)] excess gain ratio distance [m (ft)] excess gain ratio distance [cm (in)] retroreflective type diffuse reflective type
e3a2 e3a2 dimensions unit: mm (inch) e39-r1 reflector e39-l7 reflector adapter light and stability indicators light-on/dark-on and function selector operation indicator (timer function equipped type only) 4-hexagonal spot facing width across flats: 8 (.31) depth: 4 (.16) 2-5.5 (.22) dia. mounting holes mounting holes omron electronics llc omron canada, inc. one east commerce drive 885 milner avenue schaumburg, il 60173 scarborough, ontario m1b 5v8 1-800-55-omron 416-286-6465 cat. no. cedsax4 11/01 specifications subject to change without notice. printed in the u.s.a. omron on-line global - http://www.omron.com usa - http://www.omron.com/oei canada - http://www.omron.com/oci
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