self-powered time counter h7et c-17 counters self-powered time counter h7et seven digits, time range 0 to 3999d23.9h. dual time range: 999999.9 3999d23.9h or 999h59m59s 9999h59.9m model number structure model number legend ordering information time counters accessories (order separately) note: the new h7e models are supplied with a y92f-34 mounting bracket. 1 2 3 4 h7et - n - 1. count input 2. time range 3. case color 4. display none: no-voltage input v: pnp/npn universal dc voltage input fv: ac/dc multi-voltage input none: 999999.9h/3999d23.9h 1: 999h59m59s/9999h59.9m none: light gray b: black none: 7-segment lcd without backlight h: 7-segment lcd with backlight timer input display time range 999999.9h 3999d23.9h (switchable) 999h59min59s 9999h59.9min (switchable) light-gray body black body light-gray body black body pnp/npn universal dc volt- age input 7-segment lcd with back- light h7et-nv-h h7et-nv-bh h7et-nv1-h h7et-nv1-bh 7-segment lcd h7et-nv h7et-nv-b h7et-nv1 h7et-nv1-b ac/dc multi-voltage input 7-segment lcd h7et-nfv h7et-nfv-b h7et-nfv1 h7et-nfv1-b no-voltage input 7-segment lcd h7et-n h7et-n-b h7et-n1 H7ET-N1-B lithium battery y92s-36 wire-wrap terminal (set of two terminals) y92s-37 compact flush mounting bracket (see note.) y92f-35 flush mounting adapter 26 mm 45.3 mm y92f-75 27.5 mm 52.5 mm y92f-76 24.8 mm 48.8 mm y92f-77b
c-18 self-powered time counter h7et specifications general note: 1. only pnp/npn universal dc voltage input models (-h models) have a backlight. 2. ? -hours ? , ? -d-h ? , ? -h-m ? , and ? -h-m-s ? labels are included. ratings item h7et-nv- @ h7et-nv- @ h h7et-nfv- @ h7et-n- @ h7et-nv1- @ h7et-nv1- @ h h7et-nfv1- @ h7et-n1- @ operating mode accumulating mounting method flush mounting external connections screw terminals reset external/manual reset display 7-segment lcd with or without backlight, zero suppression (character height: 8.6 mm) (see note 1) number of digits 7 time range 0.0h to 999999.9h 0.0h to 3999d23.9h (switchable with switch) 0s to 999h59min59s 0.0min to 9999h59.9min (switchable with switch) timer input pnp/npn univer- sal dc voltage in- put ac/dc multi-volt- age input no-voltage input pnp/npn univer- sal dc voltage in- put ac/dc multi-volt- age input no-voltage input case color light gray or black (-b models) attachment waterproof packing, flush mounting bracket, time unit labels (see note 2) approved standard ul863, csa c22.2 no.14, lloyds conforms to en61010-1/iec61010-1 (pollution degree2/overvoltage category iii ) conforms to vde0106/p100 item h7et-nv @ - @ h7et-nv @ - @ h h7et-nfv @ - @ h7et-n @ - @ supply voltage backlight model: 24 vdc (0.3 w max.) (for backlight) no-backlight model: not required (pow- ered by built-in battery) not required (powered by built-in battery) timer input high (logic) level: 4.5 to 30 vdc low (logic) level: 0 to 2 vdc (input impedance: approx. 4.7 k ? ) high (logic) level: 24 to 240 vac/vdc, 50/60 hz low (logic) level: 0 to 2.4 vac/vdc, 50/ 60 hz no voltage input maximum short-circuit impedance: 10 k ? max. short-circuit residual voltage: 0.5 v max. minimum open impedance: 750 k ? min. reset input no voltage input maximum short-circuit impedance: 10 k ? max. short-circuit residual voltage: 0.5 v max. minimum open impedance: 750 k ? min. minimum pulse width 1 s reset system external reset and manual reset: minimum signal width of 20 ms terminal screw tightening torque 0.98 n m max. ambient tempera- ture operating: -10 c to 55 c (with no condensation or icing) storage: -25 c to 65 c (with no condensation or icing) ambient humidity operating: 25% to 85%
self-powered time counter h7et c-19 counters characteristics note: weight includes waterproof packing and flush mounting bracket. reference value item h7et-nv @ - @ h7et-nv @ -h @ h7et-nfv @ - @ h7et-n @ - @ time accuracy 100 ppm (25 c) insulation resistance 100 m ? min. (at 500 vdc) between current-carrying metal parts and ex- posed non-current-carrying metal parts, and between the backlight pow- er supply and timer input terminals/re- set terminals for backlight models 100 m ? min. (at 500 vdc) between current-carrying metal parts and ex- posed non-current-carrying metal parts and between timer input termi- nals and reset terminals 100 m ? min. (at 500 vdc) between current-carrying metal parts and ex- posed non-current-carrying metal parts dielectric strength 1,000 vac, 50/60 hz for 1 min be- tween current-carrying metal parts and exposed non-current-carrying metal parts and between the backlight power supply and timer input terminals/reset terminals for backlight models 3,700 vac, 50/60 hz for 1 min be- tween timer input terminals and ex- posed non-current-carrying metal parts 2,200 vac, 50/60 hz for 1 min be- tween reset terminals and exposed non-current-carrying metal parts and between timer input terminals and re- set terminals 1,000 vac, 50/60 hz for 1 min be- tween current-carrying metal parts and exposed non-current-carrying metal parts impulse withstand voltage 4.5 kv between current-carrying termi- nal and exposed non-current-carrying metal parts 4.5 kv between current-carrying termi- nal and exposed non-current-carrying metal parts 3 kv between timer input terminals and reset terminals 4.5 kv between current-carrying termi- nal and exposed non-current-carrying metal parts noise immunity square-wave noise generated by noise simulator (pulse width: 100 ns/1 s, 1-ns rise) 600 v (between timer input terminals/ between reset terminals) 480 v (between the backlight power supply terminals for backlight models) 1.5 kv (between timer input termi- nals) 500 v (between reset terminals) 500 v (between timer input terminals/ between reset terminals) static immunity 8 kv (malfunction) vibration resistance malfunction: 0.15-mm single amplitude at 10 to 55 hz for 10 min each in 3 directions destruction: 0.375-mm single amplitude at 10 to 55 hz for 2 hrs each in 3 directions shock resistance malfunction: 200 m/s 2 3 times each in 6 directions destruction: 300 m/s 2 3 times each in 6 directions emc (emi) en61326 emission enclosure: en55011 group 1 class b (ems) en61326 immunity esd: en61000-4-2: 4 kv contact discharge (level 2) 8 kv air discharge (level 3) immunity rf-interference from am radio waves: en61000-4-3: 10 v/m (80 mhz to 1 ghz) (level 3) immunity rf-interference from pulse-modulated radio waves: en61000-4-3: 10 v/m (900 mhz 5 mhz) (level 3) immunity conducted disturbance: en61000-4-6: 10 v (0.15 to 80 mhz) (level 3) immunity burst: en61000-4-4: 2 kv power line (level 3) 2 kv i/o signal line (level 4) degree of protection front panel: ip66, nema4 with waterproof packing terminal block: ip20 weight (see note) no-backlight model: approx. 60 g backlight model: approx. 65 g approx. 60 g approx. 60 g item value note battery life 10 years min. with continuous input at 25 c (lithium battery) the battery life is calculated according to the conditions in the left column and therefore is not a guaranteed value. use these value as reference for mainte- nance or replacement.
c-20 self-powered time counter h7et connections terminal arrangement bottom view: view of the time counter rotated horizontally 180 connections h7et time counter note: 1. terminals 2 and 4 (input circuit and reset circuit) are func- tionally isolated. 2. select input transistors according to the following: dielectric strength of the collector 50 v leakage current < 1 a backlight model no-backlight model backlight 24 vdc timer input reset input timer input reset input pnp/npn universal dc voltage input model with backlight 1. contact input (input by a relay or switch contact) relay input reset relay or switch or switch input reset 2. solid-state input backlight 24 vdc open collector of a pnp transistor open collector of a pnp transistor backlight 24 vdc or open collector of an npn transistor or open collector of an npn transistor
self-powered time counter h7et c-21 counters relay no-voltage input model 1. contact input (input by a relay or switch contact) ac/dc multi-voltage input model pnp/npn universal dc voltage input model without backlight 1. contact input (input by a relay or switch contact) 2. solid-state input relay input reset relay or switch or switch input reset relay relay input reset or switch or switch or switch input reset relay input reset relay or switch or switch open collector of a pnp transistor open collector of a pnp transistor or open collector of an npn transistor or open collector of an npn transistor note: 1. terminals 2 and 4 (input circuit and reset circuit) are functionally isolated. 2. select input transistors according to the following: dielectric strength of the collector 50 v leakage current < 1 a or open collector of an npn transistor terminals 2 and 4 are internally connected. note: use relays and switches that have high contact relia- bility because the current flowing from terminals 1 or 3 is as small as approx. 10 a. it is recommended that omron's g3ta-ia/id be used as the ssr. 2. solid-state input (open collector input of an npn transistor) open collector of an npn transistor open collector of an npn transistor terminals 2 and 4 are internally connected. note: 1. residual voltage in the output section of proximity sensors or photoelectric sensors becomes less than 0.5 v because the current flowing from termi- nals 1 or 3 is as small as approx. 10 a, thus allow- ing easy connection. 2. select input transistors according to the following: dielectric strength of the collector 50 v leakage current < 1 a
c-22 self-powered time counter h7et operation operating modes nomenclature note: perform switch setting before mounting to a control panel. h7et time counter full-scale reset timer input timer display values incrementing operation (up) internal clock timer value (full-scale ? 0.1 (1)) h7et front view bottom view reset key key-protect switch time-range switch key-protect front panel on terminal block h7et-n @@ - @@ front panel 0.0h to 3999d23.9h terminal block time range h7et-n @@ 1- @@ 0.0min to 9999h59.9min if the time-range setting is changed, the present value will not be held and so press the reset key on the front panel. setting (see note) 0.0h to 999999.9h (default setting) 0s to 999h59min59s (default setting) setting (see note) off (default setting) reset the count value. not operable under key-protect. concave side concave side concave side concave side the reset key is not operable while the key-protect switch is set to on.
self-powered time counter h7et c-23 counters dimensions note: all units are in millimeters unless otherwise indicated. h7et-n note: a compact flush mounting bracket (y92f-35) can also be used. refer to accessories for details. 22.2 +0.5 0 45 +0.5 0 22.2 +0.5 0 dimensions with flush mounting bracket panel cutout separate mounting dense mounting 40 min. (48 units ? 2.5) +1.0 0 waterproofing is not possible for dense mounting ? when mounting, insert the counter into the cutout, insert the adapter from the back and push in the counter while making the gap between the front panel and the cutout panel as small as possible. use screws to secure the counter. if waterproofing is desired, insert the waterproof packing. ? when several counters are installed, ensure that the ambient temperature will not exceed specifications. ? the appropriate thickness of the panel is 1 to 5 mm.
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