| Isolation: |
|
1500 Volts RMS between input, outputs and power |
| Power Supply: |
|
85-265 VDC/VAC, 50-400 Hz |
| Setpoint: |
|
Adjustable form 0-100% of span |
| Deadband: |
|
Adjustable from 0.25-100% of span |
| Drift: |
|
±0.02% per °C typical, ±0.05% per °C maximum |
| Ambient Operating Temperature: |
|
32 to 131°F (0 to 55°C) non-condensing |
| Input Impedance: |
|
(1290) 3 megohms, (1090) Voltage input=1 megohms, Current input=10 ohms Search Current (1490): Cu 10Ω = 5 mA. Pit 100Ω, Ni100Ω, Ni120Ω=500mA. Pit 500Ω, NiFe 1000Ω, NiFe 2000Ω=100mA. Pit 100Ω=50mA. |
| Relay Output: |
|
SPDT, one set per setpoint, 5A @ 250 VAC resistive |
| Latch Circuit Reset: |
|
Automatic at power up. Manual with reset switch |
| Lead Compensation Error (1490): |
|
0.02%/Ω |
| Indicators: |
|
One dual color LED per setpoint; red=On, green=Off |
| Open Thermocouple Protection (1290): |
|
Selectable upscale or downscale |
Loop Alarms™ Accept inputs from thermocouples (1290), RTDs (1490) or process devices (1090). SPDT relay outputs can be set for latching or non-latching, direct or reverse action and high or low function. Output behavior is easily programmable via switches. Mount in standard 11-pin sockets. 
