BOQU PHS-1701, User Manual, Page: 17 / 21

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4 Technical indexes
Meter grade
：
0.01 grade
Measuring range
pH 0-14pH
mV -1999…1999
Temp -5
℃
---105
℃
Resolution
pH 0.01pH
mV 1mV
Temp 0.1
℃
Electronic unit
measurement error
pH ±0.01pH
mV ±1mV
Temp ±0.3
℃
pH calibration 1point, 2 point, or 3 point
Isoelectric point pH 7.00
Buffer solution 8 groups
Power supply
DC6V/20mA
；
4 x AA/LR6 1.5 V or NiMH 1.2 V and
chargable
Size/Weight 230×100×35(mm)/0.4kg
Display LCD
pH input BNC
，
resistor >10e+12Ω
Temp input RCA(Cinch)
，
NTC30kΩ
Data storage
Calibration data
；
198 groups measurement data
（
99
groups for pH
、
mV each)
Working
condition
Temp 5...40
℃
Relative humidity 5%...80%(without condensate)
Installation grade
Ⅱ
Pollution grade 2
Altitude <=2000m