Bench Top pH Meter with pH range -1.999 to 19.999

Bench Top pH Meter with pH range -1.999 to 19.999

This meter includes all the basic standard features as well as direct ion strength measurement in ppm. In addition, the resolution of the pH range has been extended to 0.001 pH. For routine operations, the operator can still choose to use the 0.01 pH resolution.

Item# Description U.S. List Price Quantity
72-1965 pH 301 GLP pH/mV/ion/Temperature (°C) Bench Top Meter, pH range -1.999 to 19.999
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• GLP bench top pH/mV/Ion/°C meter
This meter includes all the basic features standard as well as direct ion strength measurement in ppm. In addition, the resolution of the pH range has been extended to 0.001 pH. For routine operations, the operator can still choose to use the 0.01 pH resolution.


The pH calibration can be performed at 1, 2 or 3 points with 6 memorized pH values (pH 1.68, 4.01, 6.86, 7.01, 9.18 and 10.01). In the ISE mode, the user can choose between readings in mV or direct concentration in ppm. Calibration can be performed at 1 or 2 points with 5 memorized concentration values (0.1, 1, 10, 100 and 1000 ppm). During pH and ISE calibration the time (hours and minutes) is stored in nonvolatile memory together with the date and data. Similar to the pH mode, the ISE calibration time, date and data can be recalled, to meet GLP requirements.


The opto-isolated RS232 is bidirectional, so that the user can operate the meter from the computer keyboard. The meter’s logging function can be used in the pH, mV and ISE modes. The logging interval is user-selectable (1, 15 or 30 seconds and 1, 5, 30, 60, 120 or 180 minutes). The memory is capable of retaining up to 99 different lots of up to 8000 samples.


This meter is supplied complete with BS4 72-1962 glass-body combination electrode, BS4 72-1949 temperature probe, 12 VDC adapter, pH 4.01, 7.01 and 10.01 buffer solutions (20 ml each) and instruction manual.
Specifications72-1965
Digital OutputBi-directional RS232 opto-isolated
ElectrodeBS4 72-1962
Environment (RH)95%
Environment (
Environment (
ISE Calibration1 or 2 points with 5 memorized values (0.1, 1, 10, 100, 1000 ppm)
InputBNC / Reference / ATC
Input Impedance1012?
Logging1, 15 and 30 sec; 1, 5, 30, 60, 120 and 180 min
Memory8,000 samples
Meter Dimensions (H x W x D) English3 x 11 x 7.9 in
Meter Dimensions (H x W x D) Metric75 x 280 x 200 mm
Power Supply12 VDC adapter (CSA, UL and CE approved)
Temperature Compensation (
Temperature ProbeBS4 72-1949
Temperature Range (
Temperature Resolution (
Typical EMC Deviation of Temperature (
Typical EMC Deviation of mV
Typical EMC Deviation of pH
Typical EMC Deviation of ppm
Weight English2.9 lb
Weight Metric1.3 kig
mV Range
mV Resolution0.1
pH Calibration1,2 or 3 points with 6 memorized buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01)
pH Range-1.999 to 19.999
pH Resolution0.01 & 0.001
ppm Range0.001 to 19999
ppm Resolution0.001; 0.01; 0.1; 1