Jack plug 3.5 mm mono
9 pin Sub-D socket for PC
Middle contact >
Pin 4
Outer contact >
Pin 2
Between Pin 2 and Pin 5 a 2,2
KOhm resistance is necessary.
The serial data signal is made up of 16 Bits in the following order:
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each data bit has the following function:
D0
End signal
D1 to D8
Measuring values (D1 = lowest digit, D8 = highest digit).
If 1234 is displayed then the bit rate is: "00001234"
D9
Decimal point (DP) is in the relevant position;
0= no DP; 1=1DP; 2=2DP; 3=3DP
D10
Polarity; 0=positive; 1=negative
D11+D12
Units shown in display; 15 = Lux; 16 = Ft-cd
D13
Data bits for over-run display = 1; under-cut = 2
D14
4
D15
Start symbol
The RS232 data format is: 9600, N, 8, 1
Maintenance and cleaning
The Luxmeter is maintenance-free apart from the need to replace the
batteries and cleaning it once in a while. Use a clean, lint-free, anti-
static and dry cloth to clean the device. Do not use any abrasive or
chemical agents or detergents containing solvents.
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Summary of Contents for Luxmeter LX-1108
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