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10
Battery replacement
When the battery icon appears in the right-hand corner of the display, the batteries should
be replaced (see also chapter Fehler! Verweisquelle konnte nicht gefunden werden.
"Disposal").
1.
Loosen the screw (3-10) of the battery compartment cover (3-9) at the back of the
unit.
2.
Remove the batteries and insert 6 new AAA batteries. Make sure the polarity is
correct when inserting the batteries.
3.
Replace the battery cover (3-9) and secure it with the screw (3-10).
11
Resetting the system
If you have a problem operating the machine, for example, if the machine stops responding
to a keystroke, you can reset the machine to its original state. This is done as follows:
While the machine is switched on, press the RESET key (3-11) gently with a pointed object.
The machine is now reset to its original state.
12
RS-232 PC interface
The device has an RS-232 interface. The data are sent via a 3.5 mm jack plug socket (3-
12) when the data interface is set to "ON". See also chapter 8.7.
The data is a 16-digit data stream.
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
D0
D1 & D8
D9
D10
D11 & D12
D13
D14
D15
RS232 format, 9600, N 8, 1
Baud rate
Parity
Start bit
Stop bit
End word
Display, D1 = LSD, D8 = MSD
Example:
If the display shows 1234, D8 is to D1: 00001234
Decimal point (DP), position from right to left
0 = no DP, 1 = 1 DP, 2 = 2 DP, 3 = 3 DP
Polarity
0 = Positive, 1 = Negative
Element shown in the display
°C = 01, °F = 02, % RH = 04, ppm=19
Selection of displays
1 = upper display
2 = middle display
3 = lower display
4
Start word
9600
No
8
1
© PCE Instruments
9
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