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Model ：PH 2800/PH 221A PH value Radix electric potential Measurement
Features and Applications
1、Intelligent industrial online pH/ORP surveillance/control instrument
2、Embedded microcontroller instrument intelligent three calibration function with prompt the user press calibration process calibration function, error can be calibrated automatically
3、High input impedance, programmable automatic and manual temperature compensation methods, fit for all sorts of pH/ORP sensor
4、With big screen dot matrix LCD. The current PH/ORP the over-error of indication, compensation methods, compensation temperature, relay output instructions, 4-20mA output instructions, current sensor efficiency etc., with screen multi-parameter
5、Own the function of upper limit, lower limit alarm relay control output, and alarm hysteresis can be set from keyboard, forming an automatic closed-loop control system more flexible and convenient
6、Widely used in chemical, pharmaceutical, printing, dyeing, metallurgy, electronic, electroplating, environmental protection, water treatment, breed aquatics etc do industry of ph/REDOX potentials of detection and adjust control
Technical data
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PH 2800 /PH 221A |
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Measurement rage |
pH measurement range： -2.00～16.00pH
ORP measurement range：-2000～＋2000mV |
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Accuracy |
pH : ±0.01 pH
ORP：±1mV |
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Temperature compensation |
pH：Manual or automatic temperature compensation |
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Medium temperature |
-10℃～130℃ |
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Electrode coefficient |
(sewage, pure water)electrode；
ORP electrode |
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Standard mode |
4.00；6.86；9.18 |
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Display mode |
LCD |
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Current output |
Photoelectric isolating can moved4～20mA |
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Control output |
ON/OFF high/lower quartile relays |
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Power supply |
AC 220V±10% 50/60Hz |
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Working conditions |
ambient temperature：0～50℃
relative humidity：≤85% |
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Dimension |
96×96×130mm |
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Slot dimension |
92×92mm |
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Installation |
panel mounted |
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Water treatment accessories
