Series SC1 Process/Temperature Alarm Switch Module
Brand: Dwyer Instruments, LLCThe Series SC1090 Thermocouple Limit/Alarm Switch Modules are on-off or limit switches with selectable process signal.
Input type, scale range, output action, and output type are all selectable by the user in the field. 
All selections are made through easily accessible switches without the need to open the product. Each unit has two form C (SPDT) relays which can operate independently, or be logically connected to operate as a DPDT output.
A two color LED indicator indicates the status of each output relay.
These units mount easily on a standard 35 mm DIN rail. Low Voltage (SCLXXXX) units are also available.
Features- Accepts Current, Voltage, Thermocouple, or RTD Inputs
 - Mounts on Standard 35 mm DIN Rail
 - Two color LED indicator to indicate the status of each output relay
 - Programmable input type, scale range, output action, and output type
 
Specifications
Deadband
- 0.25 to 100 % of Span Adjustable
 
Electrical Connectors
- Screw Driven Compression Typical
 
Indication
- Green Indication Light - Relay Off (LED)
 - Red Status Light - Relay on (LED)
 
Input
- 0-10 V
 - 0-20 mA
 - -10-10 mV
 - 10-50 mA
 - 4-20 mA
 - RTD 1,000 ohm Pt, 100 ohm Ni, 120 ohm Ni, 10 ohm Cu
 - Thermocouple Typical J, K, R, S, T, E
 
Input Impedance
- 1 MΩ - Voltage Input
 - 10 ohms - Current Input
 - 3 MΩ
 
Isolation
- 1500 Vrms between Outputs, Input & Power
 
Mounting
- DIN Rail (35 mm)
 
Operating Temperature
- 0° to 55° C (32° to 131° F) - Ambient Temperature Range
 
Output
- 5 mA - Cu10 ohms
 - 5 A at 250 Vac, Resistive
 
Power Requirement
- 12-24 Vdc / Vac
 - 50/400 Hz
 - 85-265 Vdc/Vac
 
Storage Temperature
- -40° to 80° C (-40° to 176° F)
 
Switch Type
- SPDT
 
Thermal Drift
- ± 0.02 %/°C Typical
 - ± 0.05 %/°C, Max.
 
- Stand-Alone CO Monitoring in Parking Garage
 - Industrial Processing Equipment