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Feature a LCD display of gas concentration, LED indication of each of the SPDT relays and TX/RX for the RS-485 or Modbus communications
Feature a LCD display of gas concentration, LED indication of each of the SPDT relays and TX/RX for BACnet communications
Sensor life of over ten years, includes a digital display, three user configurable relays, buzzer, horn/strobe output and non-intrusive calibration
Two wire transmitters, sensor elements have a typical life of two to three years and are easily field replaceable
Robust, low cost, analog output, sensor elements have a typical life span of two to ten years
Utilizes catalytic pellistor bead technology, sensor is resistant to poisoning substances, explosion-proof housing rated Class 1, Division 1, Groups A, B, C, and D
Class 1 Div 2, digital display of concentration, relay status, STEL, TWA and peak daily value of the gas detected
RS 485 communication protocol that accommodates 128 channels through four digital ports, Modbus is standard, BacNet optional
Utilizes both digital and analog communications to interface with a maximum of 32 remote digital QEL transmitter/sensors, and 8 analog transmitter/sensors
Utilizes digital communications to interface with a maximum of four remote digital QEL transmitter/sensors
Standard LCD display, push-button programming and on-board meter jacks, 4-20 mA DC or 2-10 VDC
Proprietary designed Infra-Red sensing element, accurate to +/-2% with minimal zero drift