Sper Scientific 850086 Water Quality Meter pH Kit User Manual
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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.