Details

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Robust digital pH sensor for operation on TriBox controllers and HS100 DIN rail module. Digital communication ensures safe and trouble-free signal transmission from the sensor to the controller. The high-quality gel pH electrode has a porous HDPE  diaphragm and is insensitive to dirt, making the sensor ideal for wastewater applications. TpH is available with a 10 m or a 2 m fixed cable.

Specification
 

Measurement technology		pH-electrode
Measurement principle		Potentiometry
Parameter		pH value, temperature
Measuring range pH		0...14 pH
Resolution		0,01 pH
Intrinsic error	pH1	± 0.05 pH
	pH7	± 0.05 pH
	pH13	± 0.35 pH
Linearity measurement error		± 0.1 pH
Repeatability	pH1	± 0.1 pH
	pH7	± 0.05 pH
	pH13	± 0.1 pH
Output signal fluctuation	pH7	± 0.025 pH
	pH4	± 0.05 pH
Warm-up time		< 5 min
Drift	Short-term drift 24 h	≤ 0.03 pH
	Long-term drift 1 week	≤ 0.05 pH
10% time and 90% time	T10 ascending	< 2 s
	T10 falling	< 2 s
	T90 ascending	≤ 5 s
	T90 falling	≤ 5 s
Temperature compensation		Pt1000
Measurement interval		2 s
Housing material		PPS / PET / NBR
Dimensions (L x Ø)		~ 180 x 27 mm	~ 7.1˝ x 1.1˝
Weight		~ 110 g	~ 0.2 lbs
Interface		RS-485, Modbus RTU
Power consumption		0.2 W
Power supply		12...24 VDC (± 10 %)
Connector		8-pin M12-plug
Sensor cable		2 m and 10 m
Required supervision		Typically ≤ 0.5 h/month
Calibration/maintenance interval		Typically 4 weeks
System compatibility		Modbus RTU
Warranty		1 year (EU & US: 2 years) on electronics; wearing parts are excluded from the warranty
Max. pressure		3 bar	~ 43.5 psig
Protection type		IP68	NEMA 6P
Sample temperature		+2...+40 °C	~ +35,6 °F... +104 °F
Ambient temperature		-5...+55 °C	~ +23 °F... +131 °F
Storage temperature		0...+80 °C	~ +32 °F... +176 °F
Inflow velocity		0...3 m/second	~ 0...10 fps

Version