Chengdu Jiuyin Technology Routine maintenance is mainly to clean the instrument probe regularly to prevent dust blockage and affect measurement accuracy. Follow these steps when cleaning the meter probe: Note: It should be handled gently to avoid bumps. Serial number Common malfunctions the reason Approach 1 Display value error is large Display value fluctuates greatly Appropriate increase in filter depth Sensor drift Calibrating the hygrometer Condensed water inside the sensor causes the measured value to be high Install the meter as far as possible ( refer to Section 6.1 Probe Installation ) High humidity at the site and high dust lead to filter blockage As for the dust clogged, it can clean up the dust out clogged; the larger site humidity and dust, it is recommended to buy together with dust cover when purchasing hygrometer. If there is more oil, the end filter cover must be replaced. Sensor damage Return to factory to replace the sensor 2 Meter 4-20mA analog output is incorrect External wiring error Check that the polarity of the connection is correct Analog output upper and lower limit setting error Reset Disconnect the cable and test the output current value correctly with a multimeter. The conversion resistance of the AD module is not within the required range, or the wiring is incorrect. Disconnect the cable and test the output current value with a multimeter incorrectly. Instrument internal circuit failure, return to factory maintenance 3 The instrument local display and remote display values ​​deviate greatly Local and remote device analog output upper and lower limits are inconsistent The upper and lower limits of the instrument is the same as the remote device (refer to chapter 8. The operation menu settings menu) Analog output calibration is not accurate Recalibrate the analog output using standard metering instruments Signal interference It is recommended to install a signal isolator 4 The instrument test value is obviously high (error is greater than 10%) Water condensation inside the probe Remove the probe from the flue and put it in the air for 24 hours to evaporate the water and re-inject the probe into the flue. If it still does not work properly, it needs to be returned to the factory. Note: The meter probe should be tilted down. 5 The display does not display content The circuit is not connected Check circuit connection Display or hardware circuit failure Contact the manufacturer for repair Water is inside the meter, causing damage to the meter Contact the manufacturer for repair 6 The indicator light FA is bright Internal memory failure Return to factory maintenance Analog output upper and lower limit setting error Reset Sensor failure Return to factory maintenance 7 Sensor damage Sensor corrosion damage Return to factory maintenance Super temperature use Unknown factor damage Instruments must use the correct way to install at a specified user manual normal operating conditions, use and maintenance. If the product has quality problems, all repaired or replaced products are subject to the free warranty terms during the warranty period . Jiu Yin Technology Chengdu Co., Ltd. is not responsible for any direct or indirect damages or losses resulting from the installation, disassembly and replacement, but not limited to installation, disassembly and replacement. In order to avoid unnecessary disputes, users should return their doubtful products to Jiu Yin Technology Chengdu Co. , Ltd. , after confirming the problem by Jiu Yin Technology Chengdu Co., Ltd. , determine the return, repair or replacement. Users assume the risk of long products sent Yin Technology Co., Ltd. Chengdu process may exist for a long Yin Technology Co., Ltd. Chengdu risk products sent back to the client process may exist. The instrument can be transported by car, airplane, ship, train, etc. in the case of good packaging, and should be protected from direct rain and snow during transportation. Please be careful when handling, do not stress. The packaged product should be stored at a temperature of -20 ~ +65 °C , a relative humidity of not more than 80% RH at 25 °C , and a corrosive atmosphere with no acid or alkaline atmosphere. The instrument should be stored in a location that is dusty, smokeless, free of steam, and non-corrosive.
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How to use the hygrometer