Y E A R G U Dual Trip Amplifiers 2002ALM The 2002ALM family of trip-amplifiers can accept a wide range of inputs including 4-20mA, thermocouple, RTD and voltage types Wide range of configurable inputs Configurable trip action and failsafe mode Isolated input stage Setpoints available on front panel See 4002ALM for mains version Options and ordering codes 2002ALM HL - A - XXX - 6 Input type 24VDC/24VAC 4-20mA HL A 0-20mA HL B 0-30mA 2 sec delay HL C 0-1mA HL D 0-5VDC HL E 1-5VDC HL F 0-10VDC HL G 18-26VDC HL H Type K 0-150C TC P Type K 0-200C TC Q Type K 0-250C TC R Type K 0-500C TC S Type K 0-600C TC T Description Type K 0-1200C TC U The unit can have up to two relay outputs and each can operate as a high or a Type J 0-250C TC W low trip. Pt100 3 wire 100C RTD Y The relay outputs are single pole change-over relays with mains voltage rating. Pt100 3 wire 50C RTD Z Each trip can be configured so that the alarm condition can be above or below Pt100 3 wire 30C RTD 1 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 Pt100 3 wire 0-50C RTD 2 can be selected to light when the relay is either on or off. All these options Pt100 3 wire 0-100C RTD 3 may be specified at point of order but are user configurable using internal link Pt100 3 wire 0-150C RTD 4 selectors. This minimises the number of spare units required. Pt100 3 wire 0-200C RTD 5 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- Pt100 3 wire 0-250C RTD 6 configured. For the thermocouple the RTD input versions the device type and Pt100 3 wire 0-400C RTD 7 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 Other ranges and thermocouple types are available as detailed in the product order. description, please contact our sales department. 2002ALM/03/03 www.imopc.com A R A N T E E 75mm 22.5mm Dual Trip Amplifiers 2002ALM continued Description 2002ALMTC for Thermocouples Inputs Types E, J, K, N, R, S and T non-linearised The input types and ranges included below are our standard ones only. Ranges 0-250, 0-500, 0-1200C (Others available) Contact sales for others. Auto cold junction compensation. Open cct t/c can drive either upscale or downscale. 2002ALMHL and DC current and voltage 0-20mA, 4-20mA, 0-10mA into 15 /30 2002ALMRTD for Resistance Thermometers 0-1V, 0-10V, 1-5V into 100k /1M 2 or 3 wire Pt100 or other, linearised output Min and Max full scale ranges: Ranges 0-250, 0-500, -100-100C (others available) DC current 0 to 50A 0 to 10A DC voltage 0 to 100mV 0 to 300V Outputs Note: For input voltages greater than 30Vac or 60Vdc a divider unit must be Mains rated relays are 3A resistive at 240Vac. specified. 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. Specification 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 0C55C 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, 20C ambient. Dimensions and connections 104.5mm 98mm 123 Connection details 10. Power input -ve 456 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 789 4. Relay 2 common 5. Relay 2 N/C 10 11 12 6. Relay 2 N/O 2002ALM/03/03 www.imopc.com