Prothermo NMT 538
Hauser Systems & Gauging
43
Message
Cause
Remedy
ELEM 0 RANGE OVER
The reading of the reference
resisrance (0 C) on the
printed circuit board is out of
tolerance.
The circuit board should be
replaced. Contact E+H
service.
TEM BELOW RANGE
The measured temperature
is below the set range.
Measure the temperature in
the tank. If it is significantly
different from the indicated
Prothermo setting, check the
temperature-element
resistance.
TEM OVER RANGET
The measured temperature
is above the set range.
Measure the temperature in
the tank. If it is significantly
different from the indicated
Prothermo setting, check the
temperature-element
resistance.
BELOWBOT. POINT
The level data are below the
lowest (bottom) element.
The reading gives only the
average gas temperature.
8 Error code
