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Online PH ORP Transmitter

China Suzhou Delfino Environmental Technology Co., Ltd. certification
China Suzhou Delfino Environmental Technology Co., Ltd. certification
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Online PH ORP Transmitter

Online PH ORP Transmitter
Online PH ORP Transmitter
Online PH ORP Transmitter Online PH ORP Transmitter Online PH ORP Transmitter Online PH ORP Transmitter

Large Image :  Online PH ORP Transmitter

Product Details:
Place of Origin: China
Brand Name: Daruifuno
Certification: CE
Model Number: APX1-C2D
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable

Online PH ORP Transmitter

Product Name: PH ORP Transmitter PH Range: -2 ~ 16pH
ORP Range: ± 2000mV Temperature Range: -10~150℃ / 14~302℉
Sensor Diagnosis: Display Images Protection Grade: IP66
Operating Temperature: 0~60℃ Power Supply: 18 ~ 36V DC
Communication: RS485 MODBUS RTU Power Consumption: 3W
Mounting Method: Panel Installation Weight: 500g
High Light:

Modbus RTU PH ORP Transmitter


18V DC dual channel analyzer


36V DC PH ORP Transmitter


Modbus RTU IP66 Online PH ORP Transmitter For The Monitoring Of Water Quality


The pH ORP transmitter can provide temperature compensation function, supporting pH sensor with temperature to measure the temperature change of aqueous solution. As the temperature of the aqueous solution changes, the concentration of hydrogen ions and hydroxide ions ionized from the aqueous solution will also change. The measured PH value is constantly changing. If you need to get a more accurate measurement value, you must increase the temperature detection of the aqueous solution, perform temperature compensation or 25°C conversions.


PH ORP Transmitter Introduction

  • Use the glass electrode measurement method;

  • 2 high-precision 0/4~20mA current output;

  • 2 settable SPST multifunction relays;
  • A two-wire RS485 interface;

  • 128*64 large screen graphic dot matrix LCD screen;
  • The protection grade of the housing is IP66;
  • Shortcut keys to perform necessary daily maintenance without entering the menu;

  • Menu passwords can be set for easy hierarchical management;

  • Power off protection, indefinite retention of parameters;

  • The communication protocol is Modbus RTU.


PH ORP Transmitter Parameters


Product Name

PH ORP transmitter

Product Model APX1-C2D
Software Version

DRFN PH Analysis software V1.0

Sensor PH Input

Glass pH sensor

Sensor Temperature Input

PT1000 or NTC10K(B)

pH Range


ORP Range ± 2000mV
Temperature Range

-10~150℃ /14~302℉


0.01pH / 1mV/ 0.1℃


PH:±0.02 pH /ORP:±2 mV


0.05% of the measurement range per 24 hours, no accumulation

Sensor Diagnosis

Screen image display

Analog Current Output

2 settable 0/4~20mA active current loop output, maximum load 1000Ω

Relay Control

2 settable SPST relays, maximum load 3A / 250VAC

Digital Communication

Two-wire RS485 interface, communication protocol: MODBUS RTU

Screen Display

128 * 64 LCD

Operating Environment

0~60℃, RH< 95%

Storage Environment

-20~70℃, RH < 55%

Power Supply 18~36V DC
Power Consumption 3 W

Shell Material

Enhanced ABS


100×100×120 mm (hole size 92*92mm)

Weight 500g

Mounting Method

Panel installation

Online PH ORP Transmitter 0

Advantages Of The PH ORP Transmitter

  1. There are two adjustable 0/4~20 mA active current loop outputs, each of which allows the user to specify the measurement value, pH, ORP or corresponding temperature. At the same time, each output can define the range of the output value corresponding to the maximum and minimum current values, whether forward or reverse, is OK. The output accuracy can be guaranteed by current calibration during long-distance output. Resolution of the current is 0.00025(16 bit AD) and the maximum load is 1000 Ω.

  2. The pH ORP transmitter can transmit analog and digital signals, or connect and control other devices through relays.


Applications Of The PH ORP Transmitter


Water treatment monitoring: Drinking water, surface water, water quality, groundwater, swimming pool, etc.


Industrial process monitoring and dosing control management: Chemical, petroleum, paper, food and medicine, electroplating, PCB manufacturing, etc.



If you are interested in the product PH ORP transmitter APX1-C2D, please contact us.





Contact Details
Suzhou Delfino Environmental Technology Co., Ltd.

Contact Person: Ms. Yuki Fu

Tel: +8615716217387

Send your inquiry directly to us (0 / 3000)