Product Introduction
The HXPH-500 pH sensor is a composite electrode composed of a noble metal indicator electrode and a reference electrode. The measurement of pH is based on the potential difference measured by a working battery composed of a measuring electrode and a reference electrode in a solution. The linear relationship between the pH value of the solution to be measured and the potential of the working battery is used to achieve online monitoring of pH.
Product Features
Has good repeatability and stability;
Cleaning and activation are simple, and the balance speed is fast;
Automatic temperature compensation function;
Optional analog-to-digital conversion module for digital signal output, strong anti-interference ability, and long transmission distance;
Optional analog-to-digital conversion module can be used to achieve standard digital signal output (RS485), which can be integrated and networked with other devices without a controller;
The on-site installation of sensors is convenient and fast, achieving plug and play functionality.
Typical applications
PH online monitoring in the process flow of sewage treatment plant inlet and outlet, sedimentation tank, biochemical reaction tank, etc;
PH monitoring in industries such as municipal water supply, surface water, and aquaculture;
PH online monitoring of water and wastewater treatment processes in various industrial production processes.
Technical Parameter
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measuring range
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pH：0-14pH； Temperature: 0-80 ℃
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measurement accuracy
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pH：±0.1pH； Temperature: ± 0.5 ℃
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Pressure Range
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≤0.6Mpa
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Zero potential pH value
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7±0.25pH（15mV）
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slope
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≥95%
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internal resistance
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≤250MΩ
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Alkali error
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0.2pH(1mol/L Na+ pH14)（25℃）
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response time
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≤ 10 seconds (reaching 95% of the endpoint value) (after stirring)
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Main materials of sensors
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Black polypropylene, Ag/Agcl reference gel
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power supply
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AC power supply: 100-240VAC (50/60HZ); DC power supply: 9-36VDC
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output
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3-channel 4-20mA
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relay
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Set up three relays, program response parameters and response values
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Communication protocol
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MODBUS RS485
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storage temperature
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-15 to 65 ℃
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medium temperature
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0 to 80 ℃
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size
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Diameter 30mm * Length 195mm
Transmitter: 145 * 125 * 162mm (length * width * height)
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weight
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Sensor: 0.2KG; Transmitter: 1.35KG
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protection grade
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Sensor: IP68/NEMA6P； Transmitter: IP65/NEMA4X
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Cable Length
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Standard cable length: 10 meters, extendable
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