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PH3000E Online pH/ORP Meter

As shown in the figure:

● Can be used with various pH and ORP sensors

● Supports tag number entry

● Provides a 4–20 mA current output channel for transmitting the primary measured parameter or temperature measurement; RS485 output is also available as an option.

● Provides two relay outputs (upper/lower limit alarms), supporting both normally open and normally closed wiring configurations.

● Automatic temperature compensation

● Default factory setting is Chinese; supports both Chinese and English menu display.

● The entire unit features an IP67 protection rating, enabling outdoor, open-air installation and operation.

● Provides password management permissions for operational access, preventing unauthorized modification of device parameters.

Technical Indicators:

 

Main Functions

Display/Transmission/Alarm/Communication

Screen specifications

2.8-inch high-definition monochrome display (320×240)

Measurement range

pH: 0–14.00 pH ORP: ±2000 mV

Resolution

0.01 pH; 1 mV

Temperature range

0–99.9°C

Temperature compensation thermistorNTC10K, NTC2.252K, PT100, PT1000

Operating Conditions

Ambient temperature: 0–60°C

Input impedance

≥1012 Ω

Output

4–20 mA (load < 750 Ω), RS485 optional

Alarm settings

Upper/Lower Limit Alarm (with configurable lookback and delay)

Power supply

Compatible with 220VAC and 24VDC

Communication interface

RS485

Protection rating

IP67

Relative humidity

<85%

External dimensions

113.5*118*136mm

Installation size92*92mm

Installation method

Panel / Pipe / Wall Mounting

 

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