pH meter watertight and read pH, mV (pH), ORP and temperature
HI 991003 pH, pH (mV), ORP and temperature with a single electrode.
On most other pH meters is necessary to remove the pH electrode and insert the ORP electrode, or vice versa. HI 991003 allows instead of having the two readings at the same time.
HI 991003 is widely used in the control of plant water purification galvanic quality control of swimming pool water, in the control of sterilization of drinking water.
HI 991003 is equipped the Special Sensor Check feature to check the status of the sensor. By means of the pH scale in mV fact it is possible to verify the characteristics of slope and offset of the sensor, and then evaluated according to these values if the operating conditions are within acceptable limits.
HI 991 003 is robust and equipped with watertight body: particularly therefore suitable for measurements in the field and in industrial environments. The large display at two levels simultaneously displays the values of pH or ORP and temperature.
Specifications HI 991003
PH scale pH : -2.00 to 16.00 pH, pH mV : ± 825 mV pH
PH resolution pH : 0.01 pH pH-mV 1 mV pH
Accuracy pH (at 20 ° C) pH : ± 0.02 pH, pH mV : ± 1 mV pH
MV ± 1999 mV
MV resolution 1 mV
Accuracy mV (at 20 ° C) ± 2 mV
Scale temperature -5.0 to 105.0 ° C / 23.0 to 221.0 ° F
Temperature resolution 0.1 ° C / 0.1 ° F
Accuracy at 20 ° C temperature ± 0.5 ° C (up to 60.0 ° C) ± 1.0 ° C (outside) / ± 1.0 ° F (up to 140.0 ° F) ± 2.0 ° F (outside)
PH calibration Automatic 1 or 2 points with 2 sets of memorized buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18)
Temperature Compensation automatic from -5.0 to 105.0 ° C
Electrode HI 1297D electrode, combined amplified pH / ORP, temperature sensor, DIN connector and 1 m cable (included)
Supply 3 x 1.5V AAA / approximately 1200 hours of continuous use, auto shut off after 8 minutes of inactivity
Dimensions and weight 152 x 58 x 30 mm / 205 g
Accessories HI 991003
HI 1296D Amplified pH electrode with internal temperature sensor, titanium coating, maximum pressure 3 bar, DIN connector and 1 m cable for HI 991001, HI 991002 and HI 991003
HI 1297D PH / ORP amplifier with internal temperature sensor, titanium coating, ORP sensor in Platinum, maximum pressure 3 bar, DIN connector and 1 m cable for HI 991002 and HI 991003
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 7020L ORP test solution to 230/275 mV, 500 mL
HI 70300L Electrode storage solution, 500 mL
HI 7061L Electrode cleaning solution, general use, 500 mL
HI 710023 Protective rubber orange instrument type HI 991001N
HI 710024 Protective rubber boot blue instrument type HI 991001N
HI 721312 Hard case for tools like HI 991001, size 340 x 230 x 90 mm