User manual VAISALA FIELD CHECK ADAPTER QUICK REFERENCE GUIDE

[. . . ] FIELD CHECK OF AMMONIA DETECTORS Quick Reference Guide Field Check Adapter 26150GM The performance of the Vaisala AMMONICAP® Ammonia Detector Series AMT100 can be checked on site with ammonia gas. A field check ensures the detector is functioning and the sensor responds to ammonia gas. During the field check, the sensor is purged using a reference gas with a known ammonia concentration. [. . . ] This indicates that the detector reacts to ammonia and that the alarms are functioning. On completion, close the bottle valve and detach the adapter from the probe. When the readout has dropped below the alarm levels, turn the detector back to normal operation mode by pressing the SERVICE MODE button. ­ ­ Tool for easy field checking Compatible with Vaisala AMMONICAP Ammonia Detector Series AMT100 and ® Vaisala CARBOCAP Carbon Dioxide Probes Series GM220 ® 100 ppm reference gas is recommended for probes with a 0. . . 100 ppm measuring range. For probes with a 0. . . 1000 ppm measuring range, the 300 ppm reference gas is recommended. The gas bottles contain 34 liters of ammonia compressed into a small and light (1 lb/0. 44kg) container. Turn the detector to SERVICE MODE either by pressing the button or via the serial line connection. When the detector is in service mode, the operation light is blinking. Connect the reference gas bottle to the adapter inlet (at the bottom of the adapter) with flexible tubing. The diameter of the Field checking ammonia detector. M210450en-A FIELD CHECK OF CARBON DIOXIDE TRANSMITTERS The field check adapter for Vaisala CARBOCAP¨ Carbon Dioxide Probes Series GMP220 can be used as a chamber for feeding in reference gas in a field checking of the probes a chamber for pump aspirated sampling system. flow meter pressure regulator GMT220/ GMM220 series transmitter CO2 Note that a field comparison can only check the performance of the transmitter. For accurate calibration and adjustment, the probe or transmitter should be returned to Vaisala Service Centre. Field Check Equipment · Accurate reference gas (Basically any concentration within the measurement range will do. If available, a good choice is one close to the normal measurement concentration. ) A pressure regulator for reducing the pressure of the calibration gas A flow meter to adjust the gas flow Tubing with 3mm (1/8") inner diameter (for example neoprene tubing, part no. Let the reference gas flow through the pressure regulator and the flow meter to the adapter. Check the reading on the display, or if the transmitter has no display, from the analog output. [. . . ] Connect the adapter with the tubing to the flow meter, the pressure regulator, and further to the reference gas bottle. The other port of the adapter is left open for gas outflow. Important note for the GMP221 ! When using the shorter probe (GMP221) with the Field Check Adapter, the adapter must be inserted on the probe so that the o-ring inside the adapter is not on the sticker of the probe (see Figure). If the adapter is placed on the sticker, the seam between the probe and the adapter will let the gas leak from the chamber. www. vaisala. com [. . . ]