Using the product8
Using the product
Preparing measurement
²
Connecting ttemperature pprobe:
For the measurement of the line temperature and the automatic calculation
of super-heating and sub-cooling, a Pt100 temperature probe (accessory)
must be connected.
Probes must be connected before switching the instrument on, in order for
them to be recognized.
1 Open the socket cover on the left-hand side of the instrument.
2 Plug the connection plug of the temperature probe into the probe socket.
3 Depending on the measurement task, position the probe at the end of the
evaporator (Superheat) or condenser (Sub-cooling).
²
Switching iinstrument oon:
i Press .
²
Zeroing ppressure ssensors:
Carry out a zeroing of the pressure sensors before each measurement.
The measurement values can be falsified by a change in the position of
the measuring instrument. After zeroing, the position of the measuring
instrument must not be changed. Carry out zeroing before every measure-
ment in order to compensate faulty positioning or long-term zero-point
drift. Zeroing is only possible in a range of ±1bar(rel)/ ±14.5psi (rel) and
0...2bar(abs)/ ±29psi (abs) resprectively.
The connections on the low and high pressure sides must be depres-
surized (ambient pressure).
1 Press function button Set.
- p=0 flashes.
2 Press OK to carry out zeroing.
²
Connecting rrefigerant hhoses:
The valve knobs are closed.
1 Connect refrigerant hoses for low pressure side (blue) and high pressure
side (red) to the instrument.
2 Connect refrigerant hoses to the system.
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