User Instruction:
● Please read the manual carefully before using the instrument.
● To make measure more accurate, the probe should be calibrated periodically. (After receiving the products, if you can use at once, which don't need to calibrate, you may use directly, we have calibrated well in factory). One year after out of factory, no matter it is used or not, the probe performance will be effected and should be replaced.
● If the pH probe stay for long time not used, before using it should be dipped into
3mol/L muriate solution for 24 hours.
● During working, if find the instrument can't work properly or broken, please contact with the supplier, please do not repair it by yourself.
●This instrument is single channel PH or ORP controller, which has only one probe
input terminal, if need to measure pH, please install pH probe; if need to measure ORP, please install ORP probe.
●Before calibration, please power on the instrument and wait 20 minutes for warming up.
I Introduction:
Industrial online PH/ORP controller PH/ORP-6850 is single channel PH
or ORP controller. It can measure and control PH and ORP value of water continuously, the PH/ORP controller is applicable for municipal waste water treatment, chemistry, printing and dyeing, paper, medicine, plating and environmental production etc.
In accordance with the environment and characteristics of water industry, as well as the international power supply standard, considering the electricity design in special environment, the PH/ORP controller could be supplied with power 220V AC, 110V AC and safe low voltage 24V AC, 24V DC for selection.
Main Characteristics:
*English language display
* Measure pH or ORP, high/low limit control, current output, digital communication output (Optional)
* It could be set automatic/manual temperature compensation
* pH high/low limit alarm light, double relay, alarm delay could be set
* Instrument mode isolated transmitting port, max circle resistance up to 750Ω
* PID control to actuate and control powered variable value through 4-20 mA output (optional)
* Back light of LCD could select power saving mode, timing automatic off, brightness adjust,
* High performance CPU, good electromagnetic compatibility
* AC input be fused. ESD over voltage protection is available
* Password management avoid non-professional person to operate
Main Technical Index:
Measure range: pH(0～14 pH) ; ORP( -1200～+1200 mV)
Accuracy: + 0.02 pH; + 1 mV
Resolution: 0.01pH; 1mV（0.1mV optional）
Stability:≤ 0.02 pH/24hr ; ≤ 3 mV/24hr
pH standard solution: 4.00/6.86/9.18 (standard), 4.01/7.00/10.01(optional)
Display: 128 * 64 dot matrix LCD
Temp. compensation:0-60℃, 0–120 ℃, automatic, PT1000RTD
Signal output: One isolated 4-20mA signal output, max circle resistance 750Ω
Alarm output: high and low limit alarm contact（3A/250 V AC）, normal open contact relay
Power supply: AC220V ±10%, 50/60Hz, AC110V ±10%, 50/60Hz, DC24V, 0.5A,
Power consumption: ≤3W
Working environment:
（1）temperature 0～60 ℃
（2）humidity≤95%RH
Outline dimension: 96×96×127mm(high×width×depth)
Hole size: 93×93mm(height×width)
Package content:
PH Controller 1pc
PH probe 1pc
Fixed clamp 1pair
Operation manual 1pc
Calibration solution 1set
