GMS10RVS Honeywell

GMS-10 RVS Series Oxygen Sensors DESCRIPTION The GMS-10 is a high accuracy, zirconia-based oxygen A heat element produces the 700 C 1292 F required for the sensor. The ability of the sensor to operate without any ZrO2 to operate as an O2 pump. The time taken for the pump to reference gas makes it ideal for potential applications such as achieve specific minimum and maximum pressures within this combustion control or aircraft oxygen generation systems. chamber is a measure of the partial oxygen pressure of the environment. The sensor employs two ZrO2 discs with a small hermetically sealed chamber in between. One of the discs functions as a The GMS-10 must be operated by an electronic measuring reversible oxygen pump, which is used to successively fill and circuit that controls the sensor operation and signal processing. empty the chamber. The second disc measures the ratio of the This circuit can either be incorporated into the customers own partial pressure difference and generates a corresponding electronics, or be purchased as a separate interface board sense voltage. from Honeywell. FEATURES POTENTIAL APPLICATIONS High-accuracy measurement Boiler combustion controls Low power consumption Aircraft oxygen generation systems No reference gas required Linear output signal No need for temperature stabilization Function testing and calibration in ambient air Long life GMS-10 RVS Series Table 1. Technical Specifications Characteristic Parameter Sensor voltage levels (recommended) 45-64-85 mV Pump current (recommended) 40 uA Heater supply 4.0 V (1.7 A) Heater supply (stand by) 2.0 V Pump resistance at 700 C 1292 F : dc 1 kOhm, typ. ac 1 kHz 120 Ohm, typ. Oxygen pressure range 2 mbar to 3 bar 700 C 1292 F Operational temperature Stand by temperature 500 C 932 F , typ. Sensitivity 1.05 ms/mbar Accuracy <5 mbar Response time <15 s Warm up time <100 s Warm up time (from stand by) <20 s Permissible gas temperature -100 C/250 C -148 F/482 F Gas flow rate 0 m/s to 10 m/s Repetitive permissible acceleration 5 g Incidental permissible acceleration 30 g 2 www.honeywell.com/sensing