How to fix Qrotech QRO-402 Measuring Instruments when unable to power switch ON?
If your Qrotech Measuring Instruments aren't powering on, first ensure the power cord is properly connected. If it is, check the fuse. If the fuse is cut, replace it and investigate the cause of the power overflow.
What to do if Qrotech QRO-402 show Flow ERR (Flow error)?
If your Qrotech Measuring Instruments show a 'Flow ERR' message, it indicates a flow error. Verify the probes, hoses, and filters to ensure none are blocked. Also, check the main filter housing's nipple for any blockages.
What to do if Qrotech Measuring Instruments are unable to measure (Measuring value stays in "0" and does not move)?
If your Qrotech Measuring Instruments are not measuring and the value stays at "0", ensure you press the measurement key in the ready mode. Also, check the connection status between the probe and the hose (gas inlet). Verify the probe filter, hoses, and filters for any blockages.
What causes Leak Fail (Gas leakage fault) in Qrotech QRO-402 and how to fix it?
If your Qrotech Measuring Instruments display 'Leak Fail', indicating a gas leakage fault, verify again the connection status of probes, hoses, and filters to ensure they are properly connected.
Why do Qrotech QRO-402 Measuring Instruments show Zero ERR (Zero Calibration error) and how to fix it?
If your Qrotech Measuring Instruments display 'Zero ERR', indicating a zero calibration error, it might be due to remaining gas in the analyzer. Press the Purge key to clean the inside of the analyzer with clean air for about 2-3 minutes.
What to do if the screen stops (unable to press Key) on Qrotech QRO-402 Measuring Instruments?
If your Qrotech Measuring Instruments' screen freezes and you are unable to press any keys, it might be due to a significant impact to the analyzer. Turn off the power and reboot the device.
Why are O2 values high or NOx value low on Qrotech Measuring Instruments?
If your Qrotech Measuring Instruments show incorrect gas values (O2 values high/ NOx value is low), it may be due to a faulty sensor or leak. Replace the O2/NOx sensor, considering their lifespan is 1-2 years. Check the NOx sensor with NOx gas.
What to do if there is no printer paper output from Qrotech Measuring Instruments?
If your Qrotech Measuring Instruments are not outputting printer paper, check if it is lack of printer paper. Open the printer case and exchange the paper. Also, check if the paper has hung up in the printer. Open the printer case and refill the paper.
What causes Prt Err (Printer fault) in Qrotech QRO-402 Measuring Instruments and how to resolve it?
If your Qrotech Measuring Instruments display 'Prt Err', indicating a printer fault, the connection cord inside the analyzer might be disconnected or badly connected. Disassemble the case of the analyzer and then re-connect the printer connection cord.
General| Brand | Qrotech |
|---|---|
| Model | QRO-402 |
| Category | Measuring Instruments |
| Language | English |
Details terms and conditions for free repair service under warranty.
Provides critical safety precautions and warnings for operation and handling.
Presents common faults, verification steps, and troubleshooting solutions for the analyzer.
Details the procedure for performing gas emission measurements using the analyzer.
Provides precautions and steps for calibrating the analyzer using standard gases.
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