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