Loop Alarms™- Series 1090 / 1290 / 1490
Accept Inputs from Thermocouples, RTDs or Voltage
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.
Dimensions: Including socket pins, 2 3/8"W x 3 7/16"H x 1 ¾"D (60.3 mm W x 87.3mm H x 44.4 mm D
PHYSICAL DATA.
| 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 |
FACTORY STOCKED MODELS
| Model 1290 Input Type and Ranges | |
|---|---|
| Type E Thermocouple | Type J Thermocouple |
| -454 to +302°F (-270 to +150°C) -454 to +554°F (-270 to +290°C) 32 to +302°F (0 to +150°C) 32 to +554°F (0 to +290°C) 32 to +1220°F (0 to +660°C) 32 to +1832°F (0 to +1000°C) |
-346 to +374°F (-210 to +190°C) -346 to +680°F (-210 to +360°C) 32 to +374°F (0 to +190°C) 32 to +680°F (0 to +360°C) 32 to +1400°F (0 to +760°C) |
| Type S Thermocouple | Type K Thermocouple |
| 32 to +1922°F (0 to +1050°C) 32 to +3200°F (0 to +1760°C) |
-454 to +482°F (-270 to +250°C) -454 to +896°F (-270 to +480°C) 32 to +482°F (0 to +250°C) 32 to +896°F (0 to +480°C) 32 to +2501°F (0 to +1372°C) |
| Type T Thermocouple | Type R Thermocouple |
| -454 to +410°F (-270 to +210°C) -454 to +734°F (-270 to +390°C) 32 to +440°F (0 to +210°C) 32 to +734°F (0 to +390°C) |
32 to +1778°F (0 to +970°C) 32 to +3200°F (0 to +1760°C) |
| Model 1490 Input Type and Ranges | |
| Pt 100, 500, 1000 RTDs | Ni120 RTDs |
| 32 to 212°F (0 to 100°C) | -58 to +482°F (0 to +250°C) |
| 32 to 572°F (0 to 300°C) | Cu10 RTDs |
| 32 to 932°F (0 to 500°C) | 32 to 482°F (0 to 250°C) |
| Ni100 RTDs | NiFe 1000, 2000 RTDs |
| -58 to +302°F (-50 to +150°C) | -58 to +392°F (-50 to +200°C) |
| Model 1090 Input Type and Ranges | |
| Voltage Inputs | Current Inputs |
| 0 to 10mV 0 to 500mV 0 to 50mV 0 to 1V 0 to 100mV 0 to 5V 0 to 200mV 0 to 10V |
O to 1mA 0 to 20mA 0 to 5mA 0 to 50mA 0 to 10mA 0 to 100mA |