When "-------" is shown, then the flow rate value is too high to be shown. The arrows indicate
the increase/decrease of the flow rate trend.
▪ Clear total
The value for total can be reset. To do so, press the CLEAR/► key twice. When the key is
pressed once, the text "PUSH CLEAR" is shown. To avoid a reset at this stage, press another
key other than the CLEAR/► key or wait for 20 seconds. A reset of the total does not influence
the accumulated total.
▪ Display compensated differential accumulated total
When the SELECT/▲ key is pressed, total and accumulated total are shown. The accumulated
total cannot be reset. The value will count up to 99,999,999,999. The unit and number of
decimals are shown according to the settings for the total.
▪ Display line temperature and compensated flow rate for inlet/outlet
When the SELECT/▲ key is pressed two times, the actual INLET / OUTLET temperature is
shown at the top line of the display. At the bottom line, the calculated INLET / OUTLET flow rate
is shown together with the engineering units for flow rate and temperature.
▪ Range error
As soon as the input value is out of the calibrated 4-20 mA measurement range, the alarm
indicator shows. When the SELECT/▲ key is pressed a few times, the alarm code is shown in
the alarm display. This alarm is also activated at a wire break or faulty sensor.
Standard range for Pt100 is -100°C - +200°C, extended range ( type ZV) is -200° - +800°C.
▪ Low-battery alarm
When the battery voltage drops, the "low-battery" icon will be displayed continuously. The battery
MUST be replaced shortly after!
The remaining lifetime after the first moment of indication is generally several days up to some
weeks. See paragraph 6.3 for further information on battery replacement.
▪ Alarm
When the alarm indicator is shown, refer to Appendix B: Problem Solving.
Fig. 4: Example of low-battery alarm.
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