Model : 6251

Description
pH/ mV/ ION/ Temp. microprocessor handheld meter in splash proof case, BNC pH/ mV/ ION connector and 8-pin DIN ATC connector. AC/ DC power. CE Approved.

* CE approved
* Power down backup
* Splash resistant/ watertight case
* Battery/ ac adaptor
* High 50/ 60hz noise rejection
* High resolution , 4 1/ 2 digit readout
* Highly reliable mechanical touch keys with audio feedback
* Programmable resolution to 0.001/ 0.1 pH, 1/ 0.1 mv
* Direct readout in ion concentration ( calibration units conform to that of the calibration standard solutions)

Specifications
Range : -2.00 to 16.00 pH
-1999 to 1999 mV ORP
0.00 to 119.8 conc.,
over 3 ranges Ion
0.00 to 25.00 Ion
25.0 to 50.0 Ion
50.0 to 119.8 Ion
-5.0 to 125.0 ° C Temp.
Resolution : 0.01 pH or0.001pH( selectable)
1 mV or 0.1mV( selectable) ORP
0.05 to 0.2 conc.,
over 3 ranges Ion
0.05 conc. Ion
0.1 conc. Ion
0.2 conc. Ion
0.1° C Ion
Accuracy : ± 0.1% ± 1 digit pH
± 0.1% ± 1 digit ORP
± 2 LSD Ion
± 2 LSD Ion
± 2 LSD Ion
± 2 LSD Ion
± 0.5 ° C Temp.

General
* pH buffer recognition model: 6251 - pH 7.00, 4.01, 10.01 6251c - pH 6.86, 4,
* pH standardization: Dual point standardization
* Ion standardization: Single or dual point standardization
* pH temp. compensation: Auto/ manual -5.0 to 125.0° C
* pH buffer temp. range: 0 to 50.0° C
* pH electrode offset recognition: ± 90 mV at pH 7.00 or 6.86
* pH electrode slope recognition: ± 30% at pH 4.00, 9.18 or10.01
* Input impedance: Greater than 10exp( 12) ohms
* ATC probe: Thermister, 10 kilo ohms at 25° C
* Audio feedback: All touch keys
* Display pH/ me/ temp: 15mm/ 7.5mm high LCD
* Ambient temp. range: 0 to 50.0° C
* Power supply: battery/ adaptor: 6AAA batteries/ ac adaptor
* Power backup: Memeory backup
* Battery life ( alkaline) : 25 hours or so
* Dimensions: 83mm x 241mm x71mm
* Weight: 450gms ( batteries included)