Mains Supply Unit Connection; Maintenance And Storage; Warning Messages And Faults - HUBER INSTRUMENTE HM35 Manual De Instrucciones

4.4

Mains supply unit connection

With the exception of the Ex-Instrument, the unit can be operated from a regulated
plug-in mains supply unit.
Input 100 - 240 V, 50 - 60 Hz
Output 6 VDC ± 10 %, 1,5 W
5

Maintenance and storage

The HM35 requires no maintenance. It can be cleaned with a damp cloth. Do not use
cleaning agents containing solvents!
See the relevant chapters for battery replacement und re-calibration.
During longer storage, remove the batteries from the instrument.
Do not drop below or exceed the admissible storage temperatures of -20 °C to 60 °C!
6

Warning messages and faults

Code Fault / Display
Does not switch on
Instrument inaccurate
No change of the measured
value
PRESSURE
14
OUT OF RANGE!
PRESSURE
13
OUT OF RANGE!
TEMPERATURE
06
OUT OF RANGE!
TEMPERATURE
04
OUT OF RANGE!
REF. VOLTAGE
15
FAILURE!
NOT CALIBRATED!
07
05 LOW BATTERY!
No IR communication
Possible cause
Power supply missing
• Re-calibration carried out
inaccurately
• Not zeroed
• Natural aging of the pressure
sensor
Excess pressure on sensor
Measurement range has been
exceeded by more than 10 %.
• Excess pressure on sensor
• Electrical fault
Pressure sensor exposed to
temperature outside permissible
range (< -5 °C or > 55 °C)
Used outside permissible
temperature range
Internal reference voltage error
Incorrect calibration of the
instrument
Battery voltage too low
• Line-of-sight connection
interrupted
• Separation too large
• PC-configuration
59
Correction
Possibly replace the batteries.
Battery possibly inserted incorrectly.
Possibly plug in power supply
correctly.
• Re-calibrate
• Vent and press Zero
• Have it re-calibrated
Send instrument to the manufacturer
for repair.
Set up the permissible measurement
pressure.
Send instrument to the manufacturer
for repair.
Observe permissible operating
temperature and temperature of the
medium.
Observe permissible operating
temperature.
Send instrument to the manufacturer
for repair.
Send instrument to the manufacturer
for repair.
Replace batteries
• Re-establish line-of-sight
connection
• Max. distance 50 cm
• Check IR connection