Intrinsically Safe Modules for Hazardous Areas
Operating Temp: -40ºC to 60ºC
Humidity: 0% – 100% condensing
Power: 3 X D Lithium battery pack. Field replaceable. Class 1 Division 1 certified when used with SignalFire system. In situ replacement does not require a work ticket. Optional Class1 Division 1 solar/battery module.
Sensor Power: Powers both the radio system and the sensor/transmitter. User configurable 1-5 Vdc or 4-20 mA mode.
4-20 mA mode: 18 Vdc @ 4 mA, 13 Vdc at 20 mA.
Barriers and external power not required.
Battery Life: 1–10 years depending on the type of sensor and reporting frequency.
Data Interface: Wireless – available as Modbus registers at Gateway.
Data Update Rates: User-selectable. 5 seconds to 1 hour, typical.
Supported Sensor Interfaces: HART, 4-20 mA current loop, 1-5 Volt, Digital input (state, counter, totals, frequency), RS-485/Modbus, Thermocouple and RTD temperature sensors.
Radio Power: 40 mW
Receive Sensitivity: -109 dB
Radio Frequency: 902–928 MHz, FHSS, license-free ISM. Band Compliant with FCC Part 15.
Range:Up to 1/2 mile
Networks: Up to 65,520 separate networks.
Intrinsically Safe: Class 1 Division 1, Temp Code T3, Groups C&D. Conforms to UL Std. 913, Certified to Can/CSA Std C22.2 No. 157
Internal Diagnostics: Battery voltage, signal strength, error conditions.
Potentiometer Input: Variable resistance
- Sentinel – Wiring Diagram – ANALOG with External Loop Power
- Sentinel – Wiring Diagram – HART with External Loop Power
- Sentinel – Control Drawing – HART and Analog
- Sentinel – Control Drawing – Modbus, Thermocouple, RTD, and Float Stick
- Sentinel – Control Drawing – Modbus 2DI
- Sentinel – Control Drawing -Digital and Turbine