50 control resources incorporated e-mail: sales@controlres.com n web: www.controlres.com hotspot-z ?temperature alarm s martfan hotspot-z is a compact, multiple- output temperature alarm. trigger tempera- ture is adjustable by means of a jumper on the circuit board. normally open or normally closed outputs can drive a logic circuit, led or piezo alarm. alarms are referenced to ground. an additional normally closed optically isolated output is provided. hotspot-z is compatible with temperature sensors p1 through p9 shown on page 34. 1.100 (27.9) .560 max (14.2) 0.20 (5.1) 0.700 (17.8) 1.960 (49.8) .270 (6.9) 2.500 (63.5) 0.156 d(2) (3.96) wide input voltage range of 5.0 to 25.0 vdc selectable alarm trigger temperature of 45? 50? or 55? (86? 92 or 98? when p3 sensor is used) normally open and normally closed outputs provide nominal 8 ma to an led connected between the output and l. they can sink at least 4 ma at 0.4 vdc to drive a logic circuit. a piezo alarm would be connected between no and +. outputs are referenced to ground optically isolated output sinks at least 1 ma at 0.4 volts optional isolated mos relay alarm output for high current or high voltage applications normally closed (e,c) alarm output: optically isolated to drive logic circuits. closed and can sink at least 1.0 ma at 0.4 volts below trigger temperature. open above trigger temperature and will accept up to 30 vdc. normally closed (nc) alarm output : closed below trigger temperature and will sink 4 ma at 0.4 volts or less. open above trigger temperature and will accept up to 30 vdc. applies nominal 8 ma to an led connected from nc to l. normally open (no) alarm output: open below trigger temperature and will accept up to 30 vdc. closed above trigger temperature and will sink 4 ma at 0.4 volts or less. applies nominal 8 ma to an led connected from no to l. applies nominal power supply voltage to a piezo alarm connected from no to +. specifications 015z150 header on board for remote sensor part number sensor type 015z150s sensor soldered to board note: maximum operating temperature is 65? hardware pack h109 features for additional information see: page 34 sensors
51 control resources incorporated e-mail: sales@controlres.com n web: www.controlres.com hotspot-z installation & operation installation power-in connections (j3) connect the power supply between pins - and + on header j3 using any voltage between 5 and 25 vdc. power supply current is 10 ma maximum at 12 vdc plus an additional 8 ma for an led if used. sensor connection (j2) sensors are shown on page 34. there is no polarity consideration when connecting the sensor. suggested connecting hardware header on board 1 qty desc. mfg. 1 part no. 1 j2 j3 1 2 1 7 2 h109 hardware pack housing terminal (gold) housing terminal (gold) pcb support molex molex molex molex richco 22-01-2027 08-55-0102 22-01-3077 08-55-0102 cbs-4-19 1 or equivalent connections/jumpers figure 1 wiring diagram (dotted lines represent connections to alternative wiring configurations.) j1 ?alarm temperature setting j2 ?sensor j3 ?input power and alarm outputs 22-29-2071 22-29-2021 operation setting trigger temperature (j1): use this jumper to set the trigger temperature to 45? 50? or 55?. factory setting is 50?. if the p3 sensor is used, trigger temperature settings are 86? 92? and 98?. alarm outputs (j3) normally closed, isolated output: this output is intended for connection to a logic circuit. an optically isolated npn transistor is connected to pins j3:e (emitter) and j3:c (collector). the out- put is closed and can sink at least 1.0 ma at 0.4 vdc for temperatures below the trigger temper- ature. above the trigger temperature, the tran- sistor is open and up to 30 vdc can be applied. non-isolated outputs: the no and nc outputs can be used to provide a logic gate or led alarm indication. for logic circuit alarm indication, each alarm output can sink up to 4 ma at <= 0.4 vdc. when open, a maximum of 30 vdc can be applied to each output. power for an led alarm indication is provided by pin j3:l via an internal 12 ma dc constant current source. an led connected between no (normally open) and l will light above trigger temperature. an led connected between nc (normally closed) and l will light below trigger temperature. a piezo alarm would normally be connected between no and +. above trigger temperature, the supply voltage is applied to the piezo alarm. note: l is positive (+); nc and no are negative (-). below temperature trigger alarm circuit logic alarm output nc no open circuit short to ground above temperature trigger short to ground open circuit power removed from unit open circuit open circuit c-e open circuit short to ground open circuit ref. desc. v2 r2 vb va r1 vs (vdc) supply voltage - + sensor isolated output j3 nc c no l e v1 green led red led j2 thermistor 45 50 55 r1 >= va / 4, kohms r2 >= vb / 4, kohms r3 >= va / 1, kohms va, vb <= 30 vdc above trigger: v1=va, v2<= 0.4v below trigger: v1 <= 0.4v, v2=vb no power to unit: v1= va, v2 = vb j1 v1 va r3
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