อุปกรณ์วัด pH (pH meter with analog output for educational purposes)

HI 22091-02
pH meter with analog output for educational purposes

HI 2209 is a pH meter for laboratory, designed for maximum ease of use. Its features make it the ideal tool for the educational workshops for those who want to deal with the first measures pH in a simple and complete.
The instrument performs, in addition to pH, ORP measurements also in mV. The display is large and easy to see and keyboard commands are clear and intuitive.
measures pH or ORP are made ​​by simply pressing a button. Solid knobs on the front of the instrument are used for the calibration, which is performed only manually adjusting the offset points and slope, in order to better understand the students the procedure and the characteristics of the electrode. Another knob is used for manual temperature compensation, and during the adjustment, the display shows the values ​​of the latter together with pH, so that you can clearly explain to students the effect of temperature measurements.
The Model HI 22091 is also equipped with an analog output for recorder to 0-5 V.

HI 22091-02 Specifications

Parameter
PH scale 0.00 to 14.00 pH
Resolution pH 0.01 pH
Accuracy pH (at 20 ° C) ± 0.01 pH
MV ± 1999 mV
MV resolution 1 mV
Accuracy mV (at 20 ° C) ± 1 mV
PH Calibration manual, 2 points
PH electrode HI 1332B, double junction, refillable, BNC connector, 1 m cable (included)
Temperature Compensation manual from 0 to 100 ° C
Analog Output 0 to 5V, pH: 0.00 to 14.00 pH mV: ± 1999 mV
Input impedance 10 12 Ohm
Supply 12 Vdc adapter (included)
Terms of use from 0 to 50 ° C; max 95% RH
Dimensions and weight 235 X 222 X 109 mm / 1.3 kg

Accessories HI 22091-02

HI 1332B Combined pH electrode with plastic body, double junction, BNC connector and 1 m cable
HI 3131B Rechargeable ORP combination electrode with glass body, platinum sensor, BNC connector, 1 m cable
HI 5100-12 Solution pH 10.01, bottle of 120 ml, ± 0.01 pH (ideal for benchtop pH meter HI 2209 and HI 22091)
HI 5300-12 Electrode storage solution, bottle of 120 ml, (ideal for benchtop pH meter HI 2209 and HI 22091)
HI 5400-12 Solution pH 4.01, bottle of 120 ml, ± 0.01 pH (ideal for benchtop pH meter HI 2209 and HI 22091)
HI 5700-12 Solution pH 7.01, bottle of 120 ml, ± 0.01 pH (ideal for benchtop pH meter HI 2209 and HI 22091)
HI 7082 3.5 M KCl electrolyte solution (4×30 ml)
HI 710006 12 Vac adapter Vdc/230
HI 76404 Electrode stand for benchtop type pH 213
HI 8427 Simulator for pH and ORP, complete with connecting cables
HI 931001 PH and ORP simulator with display, complete with coaxial cable HI 7858/1 with BNC connectors