Multi-Functional PH7335 PH/ORP Controller - Isolated 4-20mA Output & Programmable Set Points, Ideal for Chemical Labs & Wastewater Monitoring

Basic Information

• Product Name: PH7335 pH/ORP Controller (Transmitter)

• Measuring Functions: pH measurement, ORP measurement (configurable during installation)

• Temperature Compensation: Manual and automatic temperature compensation, compatible with Pt100 or Pt1000 RTD

• Temperature Reading: Displays real-time temperature when RTD is connected

• Measurement Ranges:

• pH: 0.00～14.00pH, accuracy ±0.01pH

• ORP: -1000～+1000mV, accuracy ±1mV

• Temperature: 0.0～100.0℃ (32.0～212.0°F), accuracy ±0.1℃ (±0.1°F)

• Analog Output: 0～20mA / 4～20mA (isolated, optional)

• Key Functions: Programmable set points (with hysteresis and delay time), max/min function, max/min alarm relay (optional start/stop function), scrollable alphanumeric message display

• Configuration Access: Two-level parameter configuration with operator-selected access codes

• Special Inputs: Logic digital input (for hold or alarm functions, optional), antimony sensor input

• Power Supply: 85～264V AC, 50/60Hz, 5VA

• Dimensions: 96×48×95mm

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Core Advantages

• Dual-Functional & High Precision: Supports both pH and ORP measurement with 0.01pH and 1mV accuracy, meeting high-precision monitoring needs in professional scenarios.

• Flexible Temperature Compensation: Offers manual and automatic compensation options, compatible with common Pt100/Pt1000 RTDs, ensuring measurement stability under temperature fluctuations.

• Customizable & Intelligent: Programmable set points, hysteresis, and delay time; optional max/min alarm relay and digital input functions, adapting to diverse control requirements.

• Reliable Signal Transmission: Isolated analog output (4-20mA/0-20mA) reduces interference, enabling stable data transmission to PLCs or control systems.

• User-Friendly Operation: Scrollable alphanumeric display delivers clear operation prompts; two-level access codes prevent misconfiguration, simplifying operation and management.

Application Scenarios

• Industrial Wastewater Treatment: Monitors pH/ORP values of process water and wastewater in chemical plants, electroplating facilities, and printing factories. Programmable alarms trigger automatic dosing or treatment equipment, ensuring compliance with discharge standards.

• Chemical & Pharmaceutical Labs: Used for precise pH/ORP measurement in reaction solutions, raw material testing, and quality control. High accuracy and antimony sensor compatibility meet strict experimental requirements.

• Aquaculture & Water Purification: Tracks water quality parameters (pH/ORP/temperature) in large fish farms, drinking water treatment plants, and swimming pools. Real-time temperature reading and stable compensation maintain optimal water environments.

• Food & Beverage Processing: Applies to pH/ORP monitoring in beverage brewing, dairy fermentation, and pickling processes. Isolated output and reliable performance avoid cross-contamination risks and ensure product quality consistency.