4-8 Channel Controller for Gas Monitors

Product Summary

The PureAire Multichannel Controller is designed to provide power up to 8 channels or full featured digital control of toxic, LEL and oxygen deficiency monitors. It’s supplied in a 4-channel or 8-channel version and can power and operate remote gas detectors up to 100 feet away.

  • Designed to control and power 4 to 8 monitors
  • Connects any 2 wire or 3 wire gas sensors
  • Common Dual alarm relays
  • Digital and graphic LCD gas concentration
    display
  • RS-485 / Modbus RTU output
  • Built-in power supply
  • Low acquisition price
  • NEMA 4X IP65 water resistant enclosure
    Ce listed

The PureAire low cost Multichannel Digital Controller is designed to provide simple analog control or full featured digital control of toxic, LEL and oxygen deficiency monitors. It’s supplied in a 4-channel or 8-channel version and can power and operate remote gas detectors up to 100 feet away.
Capable of accepting any two or three wire gas detector, it features two user-adjustable common alarm relays that can be used for alerting personal to a gas release or to a fault from a remote gas sensor.
The Multichannel Controller also incorporates various modes of operation for taking channels off line individually for performing calibration or sensor maintenance.
Each channel can be individually designated with, PPM, PPB or %. The LCD graphical display allows for visualization of the values from all 8 channels simultaneously. It’s also capable of viewing the trends in each measuring channel in graphical form over a time period.
A graphic LCD displays monitored data as trends and engineering units. Analog 4-20mA inputs may be accepted and controlled its built-in RS-485 Modbus port allows complete data transfer.

Specifications


Multifunctional4 or 8 toxic gas and oxygen monitors. 2 wire loop or 3 wire input
DisplayLCD graphic display, 128 x 68 points, with backlight
Humidity0 – 100% condensing
Signal Outputs Dual User Selectable Relays, NO type (200mA, 24VAC / 35 VDC)
Operating Temperature-32 to +122F
Display3/4″ LCD Digital Display, Back Lit
Sensor Type15 year
Sensor Life> 15 years under Normal Conditions
Signal OutputsBack Lit Digital Display and Audible Horn Set to 1.5%, and 3% in accordance to OSHA
Communication Interface1RS-485, 8N1 and 8N2, 1200 bit/s ÷ 115200 bit/s, Modbus RTU, galvanically separated
Baud Rate1200 bit/s to 115200 bit/s
Power Requirements115 / 230VAC 50/60HZ
Enclosure (wall mounted)NEMA 4X IP 66 water resistant
Dimensions10.5” x 9” x 6.25”

SWP-99 manual    (2.85 MB)