Hach 6120118 Combination pH and ORP Sensor Specifications, Digital Gateway Specifications

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/	Submersible to 107 m (350 ft)/1050 kPa (150 psi)
Pressure
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 13/8 in.)
Operating Temperature		–20 to 60 °C (–4 to 140 °F)

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