Online pH meter

onlinepHplanIt is an intelligent upgraded product of industrial acidity meter, which can be used for wastewater treatmentpHThis device is suitable for continuous measurement and control of values in urban sewage treatment plants, chemical industry, printing and dyeing, papermaking, pharmaceuticals, electroplating, and environmental protection fields.

Based on the environment and characteristics of the water industry, combined with international power supply standards, electrical design specifications for special environments have been considered,onlinepHplanincreased220V ACAnd safe low voltage24V AC，24V DCPower supply selection.

Product Features:

1. Factory standard configuration includes a Chinese interface and a language based menu,

2. Can be donepH/ORPMeasurement, upper and lower limit control, current output, digital communication

3. Can be set to automatic temperature compensation or manual compensation

4. pHHigh limit alarm, low limit alarm dual relay,The hysteresis can be freely adjusted

5. The instrument mode isolation transmission port has a maximum loop resistance greater than300Ω

6. The voice alarm function can be turned on or off through interface options

7. LCD backlight can choose energy-saving mode and automatically turn off at regular intervals

8. high performanceCPUGood electromagnetic compatibility performance

9. Password management function to prevent misoperation by non professionals

Main technical indicators:

1measurement range: pH(0–14 pH) ; ORP( -1900- +1900 mV)

2Accuracy:+ 0.02 pH; + 1 mV

3Resolution:0.01pH; 1mV

4stability≤0.02 pH/24hour;≤3 mV/24hour

5pHStandard solution:4.00/6.86/9.18

6Display mode:128 * 64dot matrixLCD

7Temperature compensation:0–100 ℃ Manual/automatic(NTC10K)

8Signal output: 4-20mAIsolation protection output maximum loop resistance300Ω

9Alarm output: one set of high and low limit alarm contacts each（3A/250 V AC）, normally open contact relay

10Power supply:AC 220V±10% 50Hz

11Power consumption:≤3W

12Environmental conditions:（1）Temperature0～60 ℃ （2）Humidity ≤85%RH

13Overall dimensions:96×96×112mm

14Hole size:92×92mm