User Manual

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2 Technical Specifications
2.1 Technical Parameters
pH
Range
（-2.00 ~ 19.99）pH
Resolution 0.1/0.01 pH
Accuracy ±0.01pH±1digit
Input Current ≤2×10
-12
A
Input Impedance ≥1×10
12
Ω
Stability ±0.01 pH±1digit/3h
Temp. Compensation Range
（0 ~ 100）℃（Automatic or Manual）
mV
(ORP)
Range -1999mV ~ 0 ~ 1999mV
Resolution 1mV
Accuracy ±0.1% FS
Temp.
Range
-10℃~ 110℃
Resolution
0.1℃
Accuracy
5~ 60℃：±0.5℃±1digit ; Other：±1℃
2.2 Other Technical Parameters
Data storage 600 groups
Storage content
serial number, date, time, measurement value,
temperature value, ATC or MTC state
Communication connector RS232
Power
2.2.1 DC9V/0.5A
IP rated IP 54 dustproof and splash-proof
Size and weight 160 × 190 × 70mm/880g
2.2.2 Quality and safety
ISO9001:2008 and CE