Gyr GmbH
Subject to change without prior notice
08.05.2017
6
Note:
Calculators up to 2.5 l/p can be parameterized to
kWh. Calculators with 1 l/p can be parameterized to MJ.
The pulse values are restricted by following connection condi-
tions:
Pulse
Max. power
Max. flow
[l/p]
[MW]
[m³/h]
1
3.3
24
2.5
3.3
24
10
33
240
25
33
240
100
330
2400
250
330
2400
1.000
330
2400
2.500
330
2400
The full range of functions of LCD is described in detail in the
“Operating Instructions” (enclosed).
7.
Error messages
The calculator continuously runs a self-diagnosis and can thus
recognise and display various installation or meter error mes-
sages.
Error
code
Error
Service guidelines
DIFF
nEG
Negative temperature difference
Check installation point of the
temperature sensors; exchange
if necessary
if necessary in exchange with:
F1
Interruption in the hot side tempera-
ture sensor
Check hot side temperature
sensors; replace if necessary
F2
Interruption in the cold side tem-
perature sensor
Check cold side temperature
sensors; replace if necessary
F3
Electronics for temperature evalua-
tion defective
Exchange the calculator
F4
Problem with the power supply;
Battery flat;
Check connection;
Change battery
F5
Short-circuit hot side temperature
sensor
Check hot side temperature
sensors; replace if necessary
F6
Short-circuit cold side temperature
sensor
Check cold side temperature
sensors; replace if necessary
F7
Fault in internal memory holding
Exchange the calculator
F9
Fault in the electronics
Exchange the calculator
8.
Notes
The following applies for MID conforming appliances in Ger-
many: For new installations in pipework less than or equal to
DN 25, the installation of short sensors must only be made if
they are directly immersed.
Gyr GmbH
Humboldtstrasse 64
90459 Nuremberg
Germany
