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Consultation Hotline:
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
Message InquirypH meter
Technical Features:
● The pH/ORP meter can be connected to a pH Sensor or ORP Sensor to enable online automatic monitoring of pH or ORP.
● Features automatic cleaning, alarm, and other functions.
● One input channel for simulating pH or ORP probes
● One temperature compensation input channel for 10 kΩ, PT100, or PT1000 sensors
● Intelligent Calibration Design for pH Probes (Automatic Point Recognition)
● can Temperature Correction
● Can be set Tags
● Two 4–20 mA current output channels
● Provided password management permissions for operations.
● The instrument enclosure meets IP67 protection rating.
PH3300E Online pH/ORP Meter
As shown in the figure:
● Can be used with various pH and ORP Sensors
● Supports tag number entry
● Provides two 4–20 mA current outputs, with optional RS485 output.
● Provides three relay outputs (upper and lower limit alarms, and automatic cleaning).
● Automatic temperature compensation
● Provides password-based access control to prevent unauthorized modification of parameter settings.
● Supports Chinese/English menu display (default is Chinese at factory settings)
● Provides two 4–20 mA outputs for transmitting the primary measured parameter and the temperature measurement value.
● The entire unit meets an IP67 protection rating, allowing for outdoor, open-air installation and operation.
Technical Indicators:
| Main Functions | Measurement/Display/Transmission/Alarm/Automatic Cleaning |
| Screen Parameters | 3.5-inch high-definition monochrome display (320×240) |
| Measurement range | pH: 0–14.00 pH; ORP: ±2000 mV |
| Graduation value | 0.01 pH; 1 mV |
| Accuracy | ±0.01 pH; ±1 mV |
| Temperature | 0–99.9°C |
| Warm-boost resistor | NTC10K/ NTC2.252K/ PT100/ PT1000 |
| Analog Output | Channel 2: 4–20 mA (500 Ω load), accuracy: ±0.2% |
| Relay output | 3-way normally open/normally closed contact output 250 Vac / 30 Vdc / 3 A (max) |
| Input impedance | ≥1012 Omega |
| Alarm Settings | Upper/Lower Limit Alarm (with configurable lookback and delay) |
| Power supply | Compatible with 220VAC and 24VDC |
| Communication interface | RS485 |
| Overall equipment protection rating | IP67 |
| Relative humidity | <85% |
| External dimensions | 144×152×113mm |
| Opening size | 136×136 mm |
| Weight | 0.8 kilograms |
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/Transmit/Alarm/Communication |
|
Screen Specifications |
2.8-inch high-definition monochrome display (320×240) |
|
Measurement range |
pH: 0–14.00 pH ORP: ±2000 mV |
|
Graduation value |
0.01 pH; 1 mV |
|
Temperature |
0–99.9°C |
| Warm-boost resistor | NTC10K, NTC2.252K, PT100, PT1000 |
|
Terms of Use |
Ambient temperature: 0–60°C |
|
Input impedance |
≥1012 Omega |
|
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 Level |
IP67 |
|
Relative humidity |
<85% |
|
External dimensions |
113.5*118*136mm |
| Opening size | 92*92mm |
|
Installation Method |
Pan-mounted/Pipe-mounted/Wall-mounted |
PH3200 Online pH/ORP Meter
As shown in the figure:
● Can be used with various pH and ORP Sensors
● Fully intelligent, featuring high-precision AD conversion and microcontroller-based processing technology, with powerful functionality.
● High reliability: components are integrated onto a single circuit board, eliminating the need for complex function switches and potentiometers.
● Strong anti-interference capability and excellent electromagnetic compatibility.
● Automatic range switching within the measurement range covered by the electrode
● 4–20 mA current output, or RS485 output
● Standard IP65 waterproof body design
● Can be installed on dials, pipelines, and walls.
Technical Indicators:
| Measurement range | pH: 0–14.00 pH, 0.01 pH ORP: ±2000, 0.1 mV Temperature: 0–99.9°C, 0.1°C |
| Automatic Temperature Compensation Range | 0–99°C, with 25°C as the reference. |
| Repeatability error of the electronic unit | ±0.02 pH |
| Input impedance | ≥1012 Omega |
| Current-isolated output | 0–10 mA (load < 1.5 kΩ), 4–20 mA (load < 750 Ω) |
| Output current error | ≤±1%FS |
| High and low alarm relays | AC 220V, 3A |
| Power supply | AC 220 V ± 22 V, 50 ± 1 Hz or 24 V DC |
| Communication Interface | RS485 |
| Degree of protection | IP65 |
| External dimensions | 146 (L) x 146 (W) x 108 (D) mm |
| Opening size | 138 mm × 138 mm |
| Weight | 0.8 kilograms |
National Sales Hotline: 24/7
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
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