Labideal GPR-35 Ambient Oxygen Monitor

General purpose ambient safety monitor features proprietary compensation for changes in barometric pressure that virtually eliminates the false alarms associated with competitive monitors. The enhanced stability of the GPR-35 makes it ideal for oxygen deficiency monitoring in ambient areas and confined spaces. When needed the most, battery back-up provides 8 hr of continuous use in full alarm mode. In addition to OSHA’s 20.0%, 19.5% alarm set points this monitor offers additional standard features along with a variety of options that greatly enhance the usability of this device.

• Calibration – ambient air or certified span gas
• Barometric pressure and temperature compensation
• Controls – tamper proof potentiometer for span calibration
• >0.995% over all ranges linearity
• Response time – 90% of final reading in 13 sec
• Less than 0.5% full scale sensitivity
• Corrosion resistant wetted parts
• Non-condensing up to 95% humidity
• Sample system – none, sensor exposed to ambient atmosphere
• Sensor – model GPR-11-32-RTS, 32 months expected life in air at 25 deg C, 1 atmosphere and 12 months warranty time
• Alarm type – two adjustable SPDT form C non-latching relay contacts, preset to OSHA 20.0% caution, 19.5% danger settings
• Installation – category II, pollution degree, 2, altitude <3000 m
• 12 months warranty