Specifications

MODEL 30 pH/DO SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
For use with any standard pH or ORP sensor.
Display choices are pH, ORP or Redox.
The automatic buffer recognition feature uses
stored buffer values and their temperature curves
for the most common buffer standards available
worldwide. The analyzer will recognize the value
of the buffer being measured and perform a self stabi-
lization check on the sensor before completing the
calibration. Manual or automatic temperature compen-
sation is keypad selectable. Change in pH due to
process temperature can be compensated using a
programmable temperature coefficient or isopotential
point.
PERFORMANCE SPECIFICATIONS -
ANALYZER (pH INPUT)
Measurement Range [pH]: 0 to 14 pH
Accuracy: ±0.01 pH
Repeatability: ±0.01 pH
Stability: ±0.01 pH/month, non-cumulative
Temperature Coefficient: ±0.003 pH/°C
Temperature Compensation: Pt100/Pt1000 RTD,
Automatic or Manual -15 to 100°C (5 to 212°F)
Temperature Correction: Choose from standard
measurement compensation, solution temperature
correction for high purity or dilute base solutions,
and custom temperature correction.
PERFORMANCE SPECIFICATIONS -
ANALYZER (ORP INPUT)
Measurement Range [ORP]: -1400 to +1400 mV
Accuracy: ±2.0 mV
Repeatability: ±1.0 mV
Stability: ±1.0 mV/month, non-cumulative
Temperature Coefficient: ±0.2 mV/°C
Temperature Measurement: -15 to 100°C
(5 to 212°F)
Temperature Correction: none required
pH/ORP
S1 4.34pH 25*C
S2 12.34pH 27*C
3