APT15 High-Accuracy Panel-Mount pH/ORP Controller
The ARTang APT15 is a high-accuracy panel-mount controller for continuous pH or ORP measurement, local indication and high/low limit control.
Compared with a basic pH controller, the APT15 provides higher controller accuracy, a wider ORP measurement range and both automatic and manual pH temperature compensation.
It can transmit the measured value to a PLC or recorder through a 4–20 mA output, while high- and low-limit relays support alarm, interlock and basic on/off dosing control.
- pH measurement range: 0.00~14.00 pH
- ORP measurement range: −2000 to +2000 mV
- Automatic or manual temperature compensation
- 4–20 mA analog output
- High- and low-limit relay outputs
- 24 VDC power supply
- 96 × 96 mm panel-mount housing
- 92 × 92 mm panel cutout
Product Description
The APT15 pH/ORP controller is designed for industrial applications that require higher measurement accuracy, temperature compensation, local display, and process-control outputs in a compact instrument.
The APT15 is widely used in water treatment systems, chemical dosing skids, industrial process control, and OEM analytical panels where stable measurement, signal transmission, and basic control functions are required in a 96 × 96 mm panel-mount format.
Technical Specifications
|
Parameter |
Specification |
|---|---|
|
Product model |
APT15 |
|
Product type |
High-accuracy panel-mount pH/ORP transmitter and controller |
|
Measurement mode |
pH or ORP, depending on electrode and configuration |
|
pH measurement range |
0.00~14.00 pH |
|
ORP measurement range |
−2000 to +2000 mV |
|
Controller accuracy – pH |
±0.01 pH |
|
Controller accuracy – ORP |
±1 mV |
|
pH temperature compensation |
Automatic or manual |
|
pH calibration |
Three-point calibration: pH 4.00, 6.86 and 9.18 |
|
Analog output |
4–20 mA |
|
Control output |
High- and low-limit relay outputs |
|
Power supply |
24 VDC |
|
Housing dimensions |
96 × 96 × 46 mm |
|
Required panel cutout |
92 × 92 mm |
|
Mounting method |
Panel mount |
Key Features
High-Accuracy pH Measurement
The APT15 provides a specified controller accuracy of ±0.01 pH over a measurement range of 0.00–14.00 pH.
Wide ORP Measurement Range
The ORP measurement range extends from −2000 to +2000 mV with a specified controller accuracy of ±1 mV
Automatic or Manual Temperature Compensation
Three-Point pH Calibration
4–20 mA Analog Output
High- and Low-Limit Relay Outputs
Compact Panel-Mount Design
The controller uses a 96 × 96 × 46 mm housing and requires a 92 × 92 mm panel opening.Suitable for compact analytical panels, dosing skids and OEM control cabinets.
Typical Applications
Water and Wastewater Treatment
- Municipal water-treatment systems
- Municipal and industrial wastewater treatment
- Neutralization tanks
- Effluent pH monitoring
- Water-reuse systems
- Coagulation and chemical-dosing processes
- Packaged water-treatment equipment
Acid and Alkali Dosing
- Acid dosing
- Alkali dosing
- Neutralization control
- pH adjustment skids
- Batch treatment tanks
- Chemical-treatment equipment
- Industrial wastewater pH control
ORP Monitoring and Redox Control
- Oxidation process monitoring
- Reduction process monitoring
- Chlorination control
- Dechlorination systems
- Ozone-treatment systems
- Chemical oxidation processes
- Selected metal-treatment and electroplating processes
Industrial Process Water
- Cooling-water treatment
- Circulating-water systems
- Process-water monitoring
- Industrial rinse water
- Water-treatment chemical control
- Water-reuse equipment
- Industrial utility water
OEM Equipment and Analytical Panels
The 96 × 96 mm panel design is suitable for integration into:
- Chemical-dosing skids
- Water-quality monitoring panels
- Packaged wastewater-treatment equipment
- Filtration and pretreatment systems
- Industrial control cabinets
- OEM pH/ORP monitoring systems
FAQ
The APT15 should be treated as a single-channel controller configured for either pH or ORP according to the connected electrode. Confirm the required measurement mode when ordering.
The APT15 provides:
- Higher pH controller accuracy
- Higher ORP controller accuracy
- A wider ORP measurement range
- Automatic and manual temperature compensation
- A larger display
The APT12 is intended for more general-purpose applications where manual temperature compensation and standard accuracy are sufficient.
The electrode is not automatically included unless the quotation states that the product is supplied as a complete measurement set.
ARTang can supply or recommend a compatible electrode according to the application.
The APT15 requires a 92 × 92 mm panel opening.
The controller dimensions are 96 × 96 × 46 mm. Reserve sufficient space behind the panel for wiring and terminal access.
Request a Quote and Electrode Selection Support
Need the APT15 controller only or a complete pH/ORP measurement system?
Send us your measured liquid, pH or ORP range, process temperature, required temperature compensation, installation method, output requirements and electrode information.
ARTang will help confirm the controller and compatible electrode before quotation.
Factory Strength & Quality Assurance
ARTang supports industrial measurement projects with in-house production, strict calibration, certified quality control, and global exhibition experience.
Factory Production
In-house production and assembly for stable product quality and reliable delivery.

CNC Machining Equipment

Product Assembly

CNC Machining

Welding Process

warehouse

Technical Support Department
Certified Quality
Product certificates and quality control systems support reliable industrial measurement applications.

CE

ISO

3-A

NEPSI
Exhibition Experience
ARTang meets customers and distributors at industry exhibitions to better understand project needs and market requirements.
