China PH/ORP-6800 High Accuracy pH & ORP Controller Manufacturer

PH/ORP-6800

PH/ORP-6800 is a single-channel industrial panel monitor for real-time PH & ORP measurement and automatic control. It covers pH 0~14 and ORP -1200~+1200mV with high precision, supporting auto/manual temperature compensation. Equipped with dual limit relays, isolated 4-20mA output and optional Modbus RS485, it features bilingual LCD, password lock and adjustable backlight. Multiple global power options are available. Widely used in wastewater, plating, chemical, printing & dyeing and pharmaceutical water treatment. Factory pre-calibrated probes for direct installation.

Product Details

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Product Details

Introduction:

Industrial online PH/ORP controller PH/ORP-6800 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 communicationoutput (Optional)

It could be set automatic/manual temperature compensation

pH high/lowlimit alarm light, double relay, alarm delay could be set

Instrument mode isolated transmitting port, max circle resistance up to 750Ω

Backlight of LCD could select power saving mode, timing automatic off, brightness adjust,

High performance CPU, good electromagnetic compatibility

AC input be fuse

ESDover voltage protection is available

Password management avoid non-professional person to operate

Main Technical Index

Outline dimensions and fixed Installation

Insert the controller from the front panel, install the fix clamp(up and down), tighten with the screws.

PH/ORP-6800

Chart 1 Fixed support installation

Probe Installation

Installation method and Attention-matter

Chart 2（Several common method of installation）

In order to make sure the probe measure the real value on the pipe, bubbles should be avoided ,otherwise the value will be not accurate, please install according to the following chart:

PH/ORP-6800

Chart 3（attention matters of pipe installation）

Relay alarm description:

When the relay is higher than (or lower than) the alarm pull in value acts, and when it is lower than (or higher than) the open limit value releases, the relay action diagram is as follows

PH/ORP-6800

Note: When the relay drives the inductive load, please install an intermediate relay to prevent the contact from being broken down and ionized by the inductive back EMF and burning the contact.

4-20mA current output formula

1.PH Current output formula:
Factory setting define output current value is :0 pH is corresponding value of 4 mA; 14 pH is corresponding value of 20 mA.
I = ( D - 4 mA corresponding value）× ( 16 / (20 mA corresponding value- 4 mA corresponding value) ) + 4.00
I = ( D - 0 ）× ( 16 / 14 ) + 4.00
Note: I is output current value 4 mA≤I≤20 mA
D is pH value displayed by the instrument 0.00pH≤D≤14.00pH

2. Formula of ORP current output:
Factory setting define the output current is :-2000mV is corresponding
value of 4 mA; +2000mV is corresponding value of 20 mA.
I = ( D - 4 mA corresponding value ）× ( 16 / (20 mA corresponding value - 4 mA corresponding value) ) + 4.00
I = ( D – (-2000) ）× ( 16 / (+2000 – (-2000)) ) + 4.00
I = ( D + 2000 ）× ( 16 / 4000) ) + 4.00
Note:I is output current value 4 mA≤I≤20 mA
D is ORP value displayed by the instrument -2000mV≤D≤+2000mV

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FAQS

What is JIRS PH/ORP-6800 controller used for?

It is a single-channel industrial online water quality controller, supporting either pH or ORP continuous real-time monitoring and automatic control. Widely applied in municipal wastewater, chemical industry, printing & dyeing, electroplating, swimming pool, aquaculture and environmental water treatment projects.

Can this machine test pH and ORP at the same time?

No. It only has one probe input port. You can install pH probe for pH measurement or ORP probe for ORP detection separately, cannot monitor two parameters simultaneously.

What power supply options does PH/ORP-6800 support?

Multiple global universal power options: AC220V, AC110V, AC24V, DC24V, meeting different industrial power standards worldwide. Power consumption ≤3W, low energy cost.

What is the installation size of the controller?

Outer dimension: 96×96×100mm; Panel cutout size: 92×92mm, standard panel mounting design, easy to install on control cabinets.

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