อุปกรณ์วัด pH (pH meter with Calibration Check ™ and PC connection)

HI 2221-02
pH meter with Calibration Check ™ and PC connection

HI 2221 is a benchtop meter for pH / ORP and temperature, which operates on a scale from -2.00 to 16.00 pH, and ± 699.9 and ± 2000 mV, with an accuracy of ± 0.01 pH. The instrument has a capacity to store up to 100 readings. Calibration Check ™ • Calibration messages: During calibration, the user is prompted if one or more parameters are not consistent with an accurate calibration • Condition of the electrode on the display: determined based on historical data of slope and offset of the electrode. • Electrode response time: determined based on performance during calibration. • Alarm calibration due: programmable from 1 to 7 days, or disabled. Other features : – Up to 5 point pH calibration with 7 standard buffers and 2 adjustable – Automatic temperature compensation – Storing data on a sample of up to 100 – Connecting to PC via USB – GLP (Good Laboratory Practice)

Specifications HI 2221-02

Parameter
PH scale -2.00 to 16.00 pH
Resolution pH 0.01 pH
Accuracy pH (at 20 ° C) ± 0.01 pH
MV ± 699.9 mV ± 2000 mV
MV resolution 0.1 mV (± 699.9 mV), 1 mV (± 2000 mV)
Accuracy mV (at 20 ° C) ± 0.2 mV (± 699.9 mV) ± 1 mV (± 2000 mV)
Scale temperature -20.0 to 120.0 ° C
Temperature resolution 0.1 ° C
Accuracy at 20 ° C temperature ± 0.2 ° C
Calibration Check ™ control of the condition, the response time of the electrode and control buffer solutions during calibration
PH Calibration Automatic up to 5 points with 7 memorized buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45)
Temperature Compensation manual or automatic from -20.0 to 120.0 ° C
PH electrode HI 1131P glass body, refillable, BNC + pin (included)
Temperature Probe HI 7662 stainless steel probe (included)
Interfaces USB with HI 92000 software (optional)
Storing a sample 100 samples
Input impedance 10 12 Ohm
Supply 12 Vdc adapter (included)
Terms of use 0 to 50 ° C, 95% RH (non-condensing)
Dimensions and weight 235 x 222 x 109 mm / 1.3 kg

Accessories HI 2221-02

HI 1043P Combined pH electrode, refillable, glass body, double junction, BNC connectors and banana, 1 m cable for HI 221 and HI 223 pH meters
HI 1053P Combined pH electrode, refillable, glass body, 3 porous plugs, BNC and banana, 1 m cable for HI 221 and HI 223 pH meter
HI 1083P Combined pH electrode, glass body, Viscolene, open junction, diameter 3 mm, BNC and banana, 1 m cable for HI 221 and HI 223 pH meter
HI 1131P Refillable combination pH electrode with glass body, BNC and banana, 1 m cable for HI 221 and HI 223 pH meter
HI 3131P Rechargeable ORP combination electrode with glass body, platinum sensor, BNC connectors and banana, 1 m cable for HI 221 and HI 223 pH meter
HI 70000P Rinsing solution for electrodes 25, 20 mL sachet
HI 7001L Solution pH 1.68, 500 mL
HI 7004L Solution pH 4.01, 500 mL
HI 7006L Solution pH 6.86, 500 mL
HI 7007L Solution pH 7.01, 500 mL
HI 7009L Solution pH 9.18, 500 mL
HI 7010L Solution pH 10.01, 500 mL
HI 70300L Electrode storage solution, 500 mL
HI 7061L Electrode cleaning solution, general use, 500 mL
HI 7071 Electrolyte solution 3.5 M KCl + AgCl (4×30 ml)
HI 7072 1 M KNO3 electrolyte solution (4×30 ml)
HI 7073L Electrode cleaning solution, proteins, 500 mL
HI 7074L Electrode cleaning solution, inorganic substances, bottle of 500 ml
HI 7077L Electrode cleaning solution, oils and fats, 500 mL
HI 7082 3.5 M KCl electrolyte solution (4×30 ml)
HI 7091L Reducing pretreatment solution, 500 mL
HI 7092L Oxidizing Pretreatment Solution, 500 mL
HI 710006 12 Vac adapter Vdc/230
HI 76404N Stand holders for type instruments HI 4211
HI 7662 Thermistor temperature probe
HI 8427 Simulator for pH and ORP, complete with connecting cables
HI 92000 Windows ® compatible software for PC connection
HI 920010 RS232 cable for connection to PC for benchtop instruments
HI 931001 PH and ORP simulator with display, complete with coaxial cable HI 7858/1 with BNC connectors