Problem with manual measurement

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22.03.2018, 16:46
HernanAzofeifa

Problem with manual measurement

Hi. I have a problem with manual measurement.
The measurement result screen indicates 0.0 dKH
Before making the measurement I start the preparation maintenance process: I press the "Vent Internal Flush" button and then I press the "Flush Measuremnet cell ..." button.
After this, I press the "Start Measurement Now" button
The status box says: "measuring"
Pump # 1 (Sample Water) starts operation, after a while it stops. Pump # 3 (Waste Water) starts operation and after a while it stops. Pump # 1 starts operation again and then stops, again, pump # 3 starts operation and then stops and finally pump #1 starts operation in reverse mode and stops. Pump # 2 (Reagent Fluid) never started operations and The status box changed from "measuring" to "ok" and the result screen remains 0.0 dKH
Any idea?

My firmware is 1.28

Thanks
23.03.2018, 07:54
Thilo

That sounds like the pH-electrode isn't correctly calibrated.
Please use the button "Calibrate electrode" to calibrate it correctly.
23.03.2018, 11:26
esmerok

I have same problem, sensor calibrate 5 time, all pump work good, but KH 0.0
24.03.2018, 02:15
Vinny

KH may also read 0 if there is not enough fluid in the measurement chamber.

Recalibrate the water sample pump and drain pump, then try again.
24.03.2018, 06:24
HernanAzofeifa

I made a new pH calibration and problem solved. Thank you.
24.03.2018, 08:39
esmerok

Quote:

Originally Posted by Vinny

KH may also read 0 if there is not enough fluid in the measurement chamber.

Recalibrate the water sample pump and drain pump, then try again.

thx i fix it.