Oldham Surveyor 4B

Single-channel controller without display

• Economical solution for small units (boiler plant, battery charging room)
• 2 programmable alarm thresholds

The Surveyor 4B is a single-channel controller designed to detect combustible gases in boiler plants, battery charging rooms and more generally in small units that need one or two detectors. It has two different alarm thresholds and built-in relays. It can be easily mounted to a DIN rail.
Input: Wheatstone Bridge sensor
Outputs: 2 relays (1 common gas and fault, 1 gas)
Power supply: 11.5 to 14 Vcc or 207 to 242 Vca
Indicators: Built-in audible and visual alarms
Certifications: CE