Design and principle of operation
− Data logging in progress
ON
OFF
− EEPROM error in memory pen
ON
OFF
Blinking pattern of the red LED
− Normal operation or memory pen insert-
ed
ON
OFF
− Device starting up
ON
OFF
− Temperature too high (upper limit (GWH)
exceeded)
ON
OFF
14
− EEPROM error in device
ON
OFF
Time [s]
− Zero calibration in progress
ON
OFF
Time [s]
− Internal transit time measurement
ON
OFF
− Wire breakage at temperature input
Time [s]
ON
OFF
− Wire breakage at current input
Time [s]
ON
OFF
− Flow rate at water flow sensor exceeds
measuring range
Time [s]
ON
OFF
Time [s]
Time [s]
Time [s]
Time [s]
Time [s]
Time [s]
EB 5724 EN