SJ-5 Digital pH Meter

Model SJ-5 Digital pH Meter

Characteristic:
To measure potential pH and temperature value;
Novel touching LCD screen;
To select one or more PH buffer solutions to calibrate the meter(provide ten buffer solutions; one point,two point and multi-point calibration(max/mum five point calibration) function;
RS-232 interface which can be connected with Model TP-16 printer to print out measuring results or be connected with computer to communicate with outside;
Protection from electricity cutting off. The stored data and parameters will be kept even if unusual electricity cutting off happens;
Measuring results can be stored, deleted, viewed,communicated and printed. It can store up to 200 different data.

Specifications
1. Measuring range              
     pH: (-2.000 -- 18.000)pH
     mV: (-1999.9 -- 1999.9)mV
     temperature: (-5.0 -- 105.0)  Centigrade Degrees

2. Accuracy of electronic unit  
     pH: +_0.002pH
     mV: +_0.03%(FS) +_1 bit
     temperature: +_0.2 Centigrade Degrees+_1 bit

3. Accuracy of the meter        
     pH: +_0.01pH +_1 bit
        temperature: +_0.3 Centigrade Degrees+_1 bit

4. Range of automatic or manual temperature compensation    
     (-5.0 -- 105.0)  Centigrade Degrees

5.Measured solution temperature:
     (5 -- 60)  Centigrade Degrees

6. Electronic input impedance  
     >=3×1012 Ohm