the 2002alm family of trip-amplifiers can accept a wide range of inputs including 4-20ma, thermocouple, rtd and voltage types n wide range of configurable inputs n configurable trip action and failsafe mode n isolated input stage n setpoints available on front panel see 4002alm for mains version dual trip amplifiers 2002alm description options and ordering codes hl 2002alm xxx CC a 6 hl a b c d e f g h m n p q r s t u w 1 2 3 4 5 6 7 4-20ma 24vdc/ 24vac hl 0-20ma hl 0-30ma 2 sec delay hl 0-1ma hl 0-5vdc hl 1-5vdc hl 0-10vdc hl 18-26vdc hl 0-1a rms hl 0-5a rms tc type k 0-150?c tc type k 0-200?c tc type k 0-250?c tc type k 0-500?c tc type k 0-600?c tc type k 0-1200?c tc type j 0-250?c y rtd pt100 3 wire 100?c z rtd pt100 3 wire 50?c rtd rtd rtd rtd rtd rtd rtd pt100 3 wire 30?c pt100 3 wire 0-50?c pt100 3 wire 0-100?c pt100 3 wire 0-150?c pt100 3 wire 0-200?c pt100 3 wire 0-250?c pt100 3 wire 0-400?c input type other ranges and thermocouple types are available as detailed in the product description, please contact our sales department. the 2002alm family of trip-amplifiers can accept a wide range of inputs including 4-20ma, thermocouple, rtd and voltage types. the unit can have up to two relay outputs and each can operate as a high or a low trip. the relay outputs are single pole change-over relays with mains voltage rating. each trip can be configured so that the alarm condition can be above or below setpoint. the relays can be energised or de-energised in the alarm condition, satisfying fail-safe and non-fail-safe applications. in addition the alarm leds can be selected to light when the relay is either on or off. all these options may be specified at point or order but are user configurable using internal link selectors. this minimises the number of spare units required. the input stage is fully isolated as an option and the input type can be user-configured. for the current and voltage input version the range may also be re- configured. for the thermocouple the rtd input versions the device type and range are selectable. again these can also be specified at point of order. it is also possible to specify a latching function on the relay outputs, making the unit ideal for lock-out applications. the unit can be powered from a wide range of power supplies, ranging from 12vdc to 24vac, please specify with order. 6
description 2002alm dimensions and connections 123 11 10 12 456 789 connection details 10. power input -ve 11. power input +ve 7. process input -ve t/c -ve rtd -ve 8. process input +ve t/c +ve rtd +ve 9. signal o/p (0-1v) t/c shield rtd 3rd wire 12. setpoint -ve 1. relay 1 common 2. relay 1 n/c 3. relay 1 n/o 4. relay 2 common 5. relay 2 n/c 6. relay 2 n/o s s s s s s ss 104.5mm 75mm 22.5mm 98mm specifications parameter min typ max comments supply voltage 24vdc options: 12, 24vdc or 24vac supply current 45ma 24v supply, both relays energised input impedance (volt) 100k 1m 10m dependent on range (typ=10v) input impedance (ma) 0.02 15 5k dependent on range (typ=20ma) volt drop (ma input) 0.3 0.35 at 20ma input trip point accuracy 0.25% temperature coefficient 100ppm/?c trip point drift -100ppm/?c time constant (10-90%) 10ms operating ambient 0?c 55?c relative humidity 0% 90% isolation voltage 1kv surge voltage 2.5kv for 50s transient of 10kv/s notes setpoints are adjusted by 20 turn potentiometers on the front panel. setpoints can be checked by measuring the 0-1v (0-100%) voltage on the front panel terminals. h/h, h/l, l/h, ll, fail-safe, non-fail-safe and led options are user selectable using internal links. hysteresis is set at 1.0% but other values are possible, please specify if required. the process input level is available as 0-1v (0-100%) on terminal 9. figures based on hl version, 24vdc supply, 20?c ambient. inputs the input types and ranges included below are our standard ones only. contact sales for others. 2002almhl and dc current and voltage 0-20ma, 4-20ma, 0-10ma into 15 /30 0-1v, 0-10v, 1-5v into 100k /1m min and max full scale ranges: dc current 0 to 50a 0 to 10a dc voltage 0 to 100mv 0 to 300v note: for input voltages greater than 30vac or 60vdc a divider unit must be specified. 2002almtc for thermocouples types e, j, k, n, r, s and t non-linearised ranges 0-250, 0-500, 0-1200?c (others available) auto cold junction compensation. open cct t/c can drive either upscale or downscale. 2002almrtd for resistance thermometers 2 or 3 wire pt100 or other, linearised output ranges 0-250, 0-500, -100-100?c (others available) outputs mains rated relays are 3a resistive at 240vac. note: if one relay is switching >115vac the isolation between the two relay outputs is not safety isolation. the default setting on the relay operation is set to hi/lo. the led is set on when energised. please specify the correct operation when ordering, if different from above.
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