General Tools and Instruments DPHC2001 - Manual (Page 22)

Meter PC
(3.5 mm jack plug) (9W 'D" Connector)
Center Pin.............................. Pin 4 Pin 2
2.2 K
Ground/shield............................Pin 2 Pin 5 resistor
The 16 digits data stream will be displayed in the
following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each digit indicates the following status :
D0 End Word
D1 & D8 Display reading, D1 = LSD, D8 = MSD
For example :
If the display reading is 1234, then D8 to D1 is :
00001234
D9 Decimal Point(DP), position from right to the left
0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D10 Polarity
0 = Positive 1 = Negative
D11 & D12 Annunciator for Display
蚓
= 01
蚌
= 02 PH = 05
mV = 18 mS = 14 PPM = 19
OF2= 06 mg/L = 07
D13 When send the upper display data = 1
When send the lower display data = 2
D14 4
D15 Start Word
RS232 FORMAT : 9600, N, 8, 1
20