Sper Scientific 850086 Water Quality Meter pH Kit User Manual

Page 10

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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, Dl = LSD, D8 = MSD
E.g: If the display reading is 1234, then 08 to Ohs: 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

°

C=O1

°

F=02

mV=18 mS=14
0-6F1 = 06 mg/L = 07

D13

The upper display data = 1, The lower display data = 2

D14

4

D15

Start Word

RS232 FORMAT: 9600, N, 8, 1

V. SPECIFICATIONS

Circuit

Custom one-chip microprocessor LSI circuit.

Display

51 mm x 32 mm, dual function LCD display,
15mm (0.6”) digit size.

Input Impedance

10

12

ohm

Temperature Compensation
for pH measurement

Manual

0-100°C, adjusted by the
°C/°F button.

Automatic (ATC) With optional probe, 1-65°C

Ph Calibration

pH 7, pH 4, & pH 10, 3 points calibration
ensures the best linearity and accuracy.

PH Electrode

Opt., any pH electrode with BNC connector.

Operating Temperature

0°C to 50°C (32°F to 122°F).

Operating Humidity

Max. 80% RH.

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