Sper Scientific 850039 Conductivity TDS Meter - Datalogging - Manual (Page 9)

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Data 1 Data X+1 Data Z
To Data X To Data Y To Data 16,000
 Use the ▲ (5) and ▼ (6) buttons to select the desired memory block num-
ber (1 to 250) and push the SEND (7) button once.
 The bottom right of the display shows "Sending Data!".
 When the process has finished, "Transmit mode" is displayed.
 Push the ESC (3) button to exit this function.
6. RS232 PC SERIAL INTERFACE
The instrument features a 3.5 mm RS232 OUTPUT TERMINAL (15). The
signal output is a 16-digit data stream that can be adapted to user-defined
applications. A RS232 lead with the following connection is required to link
the instrument with the PC serial interface.
Each digit indicates the following status:
D0 End Word = 0D
D1 & D8 Display reading, Dl = LSD, D8 = MSD
(If the display reading is 1234, then D8 to D1 is: 00001234)
Block 1 Block 2 Block 250
………
………
314
uS
xx:xx:xx Transmit Mode 1
uS
1 Transmit Mode
start time the first data memory block start data address
of each block of each block number of each block (1-250)
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
The meter can record up to 16,000 data points, stored in a maximum of
250 memory blocks. All data points saved during one data logging ses-
sion are stored in one memory block.
Meter (3.5 mm jack plug) PC (9W ‘D” Connector)
Center Pin .................................. Pin 4 Pin 2 2.2 K
Ground/shield ............................ Pin 2 Pin 5 resistor