Statox 501 PID Sensor Head Operation Instructions SAFETY ADVICE INTRODUCTION Measuring principle Operation mode Different models DRILLING PLAN, DIMENSIONS, CONSTRUCTION, SCOPE OF DELIVERY INSTALLATION AND ELECTRICAL CONNECTION Caution Installation Electrical connection START UP AND MEASURING MODE CALIBRATION WITH GAS TROUBLESHOOTING...
For calibration use Isobutene as reference gas (see chapter 6). 2.2 Operation mode The Statox 501 PID sensor head operates in the diffusion mode. If you want to operate the Statox 501 PID in the flow mode, please contact your Compur Monitors expert.
2.3 Different models The parameters of the Statox 501 PID interface are set ex works to the requirements of your application. Target gas and measuring range are hardware programmed and noted on the type plate. The sensor type is labeled on the sensor: PID-A1 or MP3SM6FC = ppm Sensor, PID-AH or MP3SB6FC = ppb Sensor.
Position: gas access downwards (+ / - 15° ). Use a shielded cable to transmit the signal to the Statox 501 control module. The sensor head housing must be grounded. Observe local regulations for electrical installations.
Netzteil 5-wire mode 3-wire mode Electrical connections for Statox 501 PID sensor heads to Statox 502/503 control modules. Faulty connection may destroy the interface! 5 Start up and measuring mode When connected to power, the LED is flashing green / red alternatingly.
Calibration to liquid substances in the field is labor intensive and prone to error. Use Isobutene as reference gas and apply the response factors (noted on the type plate) provided by Compur Monitors. The tools required for calibration are: span gas in appropriate concentration, a regulator and a gas adapter.
A PID sensor will gradually loose sensitivity over time. This process depends on the ambient conditions and the target gas. Therefore, regular calibration, lamp cleaning and replacement of consumables is necessary to guaranty accurate measurement. Compur Monitors recommends to hold stock of consumables.
8.1 Lamp cleaning / replacement of consumables 8.1.1 Removing the sensor Open the retaining nut counter clockwise until you can remove it, by pulling it downwards. Unplug the sensor pulling it downwards. Work on the sensor should be performed in a clean environment. Protect the sensor slot by re-installing the retaining nut (see chapter 8.1.4) and closing it with the blind plug.
8.1.2 Polishing the lamp Pull the lamp carefully out of the electrode stack. Never touch its polished front side. Polish the front side with a cotton swap and the polishing powder. Apply tender pressure until you hear a silent squeak. Remove loose polish particles with a fresh swap until the lamp front is absolutely clean.
Installation of the sensor protection cap: The O-Rings (1+2) must be properly positioned in their seats on the sensor protection cap. Take the sensor protection cap in one hand, make the positioning pin of the interface match its rest in the cap, press it upwards and tighten the nut hand tight.
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No licence is implied or in fact granted under the claims of any patent. Instruments are manufactured by Compur Monitors GmbH & Co. KG, Munich.
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