Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 11)

Specifications
9
Input resistance—reference electrode >1 x 10
10 Ω
Input current—glass electrode <2 x 10
–12
A
Input current—reference electrode <1 x 10
–10
A
Measurement range –1500 to 1500 mV
Measurement error—pH 1 , 2
<0.02 pH units plus sensor error;
TC: 0.002 pH/K
Measurement error—mV
1,2 <1 mV plus sensor error; TC: 0.1 mV/K
Display range—pH –2.00 to 16.00 pH units
Display range—ORP –1999 to 1999 mV
pH sensor calibration
Offset range ± 60 mV
Slope range 85 to 103% (47.5 to 61 mV/pH unit)
Calibration timer 0 to 9999 hours
ORP sensor calibration (si792 P, si792x P and si792x P-FF only)
Calibration range –700 to 700 mV
Calibration timer 0 to 9999 hours
1 (± 1 count plus sensor error)
2 IEC 746 Part 1, at nominal operating conditions