Delta OHM HD32.2, Manual

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4.
WORKING
Before switching the instrument on, connect the SICRAM probes to the inlets: 8 pin male
connector DIN 45326 that
is on the bottom of the instrument.
NOTE: The probes must be connected to the instrument off. If you connect a new probe to the
instrument already switched on, it isn't recognized, so it's necessary to switch the instrument
off and switch it on again.
If you connect a probe with the instrument switched on, you have an acoustic alarm (a beep per
second) and you can visualize it on the display in correspondence of a disconnected physical size,
the “LOST” message will be visualized.
If you insert more probes of the same type, it will be only consider the first recognized probe:
the scansion of the probes, for their recognition, happens from the inlet 1 up the inlet 3.
When you switch the instrument on, on the display appears the following writing for at least 10 sec-
onds:
HD32.2 WBGT Index
Firm.Ver.=01.00
In addition to Delta Ohm logo are indicated the instrument code and the firmware version.
After connecting the probes, switch the instrument on: the display, after 10 seconds, will appear in
the measurement visualization mode:
WBGT Index
2008/11/28 08:00:00
Log 00 00:00:00
Tn 15.6 °C
Tg 20.2 °C
T 20.2 °C
WBGT(in) 17.0 °C
WBGT(out) 17.0 °C
Tn: wet bulb temperature with natural ventilation
Tg: globe thermometer temperature, detected by the globe thermometer probe
T: ambient temperature, detected by Pt100 probe
WBGT (in): WBGT index calculated in absence of solar irradiation
WBGT (out): WBGT index calculated in presence of solar irradiation