China Jfa300 Liquid Digital Online Aquarium pH Monitor Analyzer Meter with 4-20mA

Description:
pH sensor is a combination electrode composed by glass indicative electrode and reference electrode. pH measure, a measure method to realize pH online monitor, according to measure potential difference in solution by measuring working battery formed by electrode and reference electrode, utilizing linear relationship between the solution pH value need to be measured and electric potential of working battery.
pH online monitor in the technological process such as water inlet in waterworks, sedimentation tank and biochemical reaction basin.
pH monitor in these industry such as municipal water supply, surface water and aquaculture.
pH online monitor in various industry water consumption during the production and wastewater treatment process.
Features:
1.Favorable repeatability and stability.
2.Simple to clean and activate, with faster balancing speed.
3.Auto-temperature compensation function.
4.Equipped with analog to digital conversion to realize digital signal output.
Strong anti-interference and far transmit distance.
5.Equipped with analog to digital conversion to realize standard digital signal output(RS485),
which can make a integration and networking with other equipment in no controller.
6.Convenient to install sensor at the site, plug and play.
7.Concise usage, reliable result. Interface operation instrument can reduce failure.
8.Vital warning function provided by visual alert system.
9.Controller can be installed in Wall mount, panel mount and pipe clamping.
Technical parameters:
PH Sensor:

Measure rangepH:0-14pH;
temperature: 0ºC~80ºCaccuracy pH: ±0.1pH;
temperature: ±0.5ºCPressure range≤0.6MpaZero potential pH value7±0.25pH(15mV)Slope ≥95%Internal resistance≤250MΩAlkali error0.2pH(1mol/L Na+ pH14)(25ºC)Response time ≤10 minutes(reach endpoint 95%)(after stirring)Main materialsBlack polypropylene, Ag/Agcl reference gel.Storage temperature-15ºC~65ºCMedium temperature0ºC~80ºCDimensions Diameter: 30mm
Length:195mmWeight 0.2KGProtection rateIP68/NEMA6PCable lengthThe standard cable is 6m and can be extended.

Controller:

Display output128*64 graphic dot matrix LCD with LED backlight, which can be operated under the direct sunlight.Power supplyAC:AC220V,50HZ
DC:DC24VMaterials of outside shellUpper cover:PA66+GF25+FR
Lower casing: aluminum alloy dustingoutputDuplex 4-20mA analog output, response parameters and corresponding scope can be programmed.RelayThree-way relay can be set up, response parameters and value can be programmed.Digital communicationsMODBUS RS485 communication function, which can transmit real-time measurement value Storage temperature-20ºC~70ºCOperation temperature-15ºC~60ºCWaterproof rate IP65/NEMA4XMeasure 145mm*125mm*162mm(length*width*height)Weight1.3KG

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