JIRS Online industrial water PH meters PH controller with PH sensor 4-20mA and RS485 output PH-6850
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.
Specification
| Function |
PH/ORP-6850 - Single channel PH or ORP Controller |
| Range | PH：0.00～14.00 pH , ORP：-1200～＋1200 mV |
| Accuracy | pH : ±0.1 pH , ORP：±2mV |
| Temp. Comp. | 0–100 ℃, manual / automatic ( NTC 300 or PT1000 RTD ) |
| Operation Temp. | 0～60℃ (Match Normal temp sensor) 0～100℃(Match high temp sensor) |
| Sensor | Two/ Three Composite PH sensor, ORP sensor |
| Calibration | 4.00；6.86；9.18 Three Point Calibration |
| Display | 128 * 64 dot matrix LCD |
| Current output signal | Isolation,Reversible Transferable 4-20mA signal output, max circle resistance 750Ω |
| Control output signal | High and low limit alarm contact each group（3A/250 V AC）, normal open contact relay |
| Communication signal | Modbus RS485, baud rate: 2400, 4800, 9600 |
| Power supply | AC220V±10%, 50/60Hz (standard), AC110V, DC24V, 12VDC (optional) |
| Protection Grade | IP65 |
| Working environment | Ambient Temp. 0～70℃, Relative Humidity ≤95% |
| Overall dimensions | 96×96×130mm (H X W X D) |
| Hole dimensions | 92×92mm (H X W) |
| Installation Mode | Panel Mounted (Embedded) |
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
Ⅱ 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:0–120 ℃, manual / 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%, 50/60HzR,
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)