20
Operating instructions for KME flow meter for compressed air and gases
6 error messages
Error messages are available on the status page of the display and at the status LEDs.
Fig. 19
Status LED - error message
Green LED
Red LED
0: no error / green LED flashes
1: EEPROM faulty / green LED flashes, red LED lights up
Cause:
The EEprom for storing the consumption meter status and the MIN/MAX values
is faulty.
Consequence: The consumption meter status and the MIN/MAX values are no longer available.
All current measured values are shown on the display. The analogue, switch and
pulse outputs operate normally.
Remedy:
Return the device to the manufacturer for service.
2: Display error / green LED flashes, red LED lights up
Cause:
The display or the communication with the display is faulty.
Consequence: Analogue, switch and pulse outputs operate normally.
Remedy:
Return the device to the manufacturer for service.
4: Sensor fault / green LED flashes, red LED flashes
Cause:
The sensing head is faulty.
Consequence: All measurands on the display are frozen at the lowest possible value e.g. -20 °C
(-4 °F)
or 0 m³/h. The analogue output is frozen at 21 mA (NAMUR NU43).
Remedy:
Return the device to the manufacturer for service.
7 Maintenance
It is recommended to calibrate the KME flowmeter on a yearly base.
For use with polluted media, the sensing head should be periodically cleaned.
7.1 removing the transmitter from the gauge mounting block
Depressurize the pipeline before mounting or removing the transmitter
unit.
Ensure that the line is depressurized and release the mounting screws of the transmitter unit
(fig. 20 and 21).
