Description
The PureAire 8-Channel Touch Screen Programmable Controller remotely operates and powers up to 8 fixed gas monitors in spaces where oxygen and other gas levels pose a safety hazard to personnel or operations.
The multi-channel controller connects up to 8 monitors — including oxygen, carbon dioxide, toxic, and LEL gas detectors — continuously measuring gases such as oxygen, carbon dioxide, helium, argon, nitrogen, ammonia, chlorine, hydrogen, methane, ethylene, and propane, from a distance of up to 100 feet.
It accepts any 2- or 3-wire gas detector and features 6 user-adjustable common alarm relays that alert personnel in the event of a gas leak or a monitor fault by controlling a horn or strobe. Individual channels can be taken offline for calibration or sensor maintenance, and each channel can be designated in PPM, PPB, or %. The LCD color touch screen displays the readings from all channels simultaneously, with trend graphs viewable over time.
Housed in a NEMA 4X / IP67 water-resistant enclosure with a built-in 24 VDC power supply and RS-485/Modbus RTU output — backed by a 2-year warranty.
- Controls and powers up to 8 fixed gas monitors or gas detectors
- Color LCD touch screen display — digital and graphic gas concentration readouts
- Accepts any 2- or 3-wire gas monitor
- 6 user-adjustable common alarm relays (horn/strobe control)
- RS-485 / Modbus RTU output
- Built-in 24 VDC power supply
- Individual channels can go offline for calibration or sensor maintenance
- Per-channel units: PPM, PPB, or %
- Trend graphs for each channel over time
- NEMA 4X / IP67 water-resistant enclosure
- 2-year warranty
| Manufacturer | PureAire Monitoring Systems |
| Part Number | 99233 |
| Channels | 8 toxic gas and oxygen monitors; 2-wire loop or 3-wire input |
| Display | Touch screen LCD graphic display, backlit |
| Humidity | 0–90% non-condensing |
| Signal Outputs | 6 relays, NO type (1A, 24VDC) |
| Operating Temperature | -32 to +122°F |
| Communication Interface | Modbus RTU (RS-485) |
| Power Requirements | 100–240 VAC, 43/64 Hz – max draw 2.6A |
| Dimensions | 8.67 in x 6.17 in x 10.88 in (220.21 mm x 156.71 mm x 276.35 mm) |
| Unit Weight | 6.2 lbs (2.8 kg) |
| Enclosure | NEMA 4X / IP67 water-resistant |
| Country of Origin | USA |
| Harmonized Tariff Code | 8537.10.90.60 |
Product Literature
Instruction Manual