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5
Section 1 Specifications
Specifications are subject to change without notice.
Table 1 Combination pH and ORP Sensor Specifications
Components Corrosion-resistant materials, fully-immersible probe with 4.6 m (15 ft) cable
Measuring Range (pH) 0 to 14 pH
Measuring Range (ORP) –2000 to +2000 mV
Measuring Range (Temperature) 0 to 105 °C (32 to 221 °F)
Probe Operating Temperature 0 to 105 °C (32 to 221 °F)
Probe Storage Temperature –30 to 70 °C (–22 to 158 °F); 0 to 95% relative humidity, non-condensing
Temperature Compensation
pH: Pt 1000 ohm RTD
ORP: N/A
Accuracy (Analyzer only)
pH: 0.1% of span
ORP: Limited to calibration solution accuracy (± 20 mV)
Stability (Analyzer only) 0.05% or span per 24 hours, non-cumulative
Repeatability (Analyzer only) 0.1% of span or better
Temperature Accuracy (Analyzer only) ±0.5 °C (±0.9 °F)
Temperature Drift (Analyzer only) Zero and Span: less than 0.03% of span per °C
Calibration Methods (Analyzer only) Two point automatic, one point automatic, two point manual, one point manual
Maximum Probe Immersion Depth/
Pressure
Submersible to 107 m (350 ft)/1050 kPa (150 psi)
Sensor Interface Modbus from digital gateway
Probe Cable Length 4.6 m (15 ft)
Probe Weight Depends on selected sensor
Probe Dimensions See Figure 1 on page 8 through Figure 4 on page 9.
Table 2 Digital Gateway Specifications
Weight 145 g (5 oz)
Dimensions 17.5 x 3.4 cm (7 x 1
3
/8 in.)
Operating Temperature –20 to 60 °C (–4 to 140 °F)