Differential Sign Industry Online PH Transmitter For water Quality Testing
PH/ORP gauges has a temperature detection and temperature compensation function, supporting pH electrodes with temperature to measure temperature changes in aqueous solutions. It is a patented temperature drift compensation technology, which makes the instrument more stable and accurate in all kinds of environments.
The PH/ORP gauges use salt-bridged primary battery electrodes (PH electrodes) to detect changes in the concentration of hydrogen ions in the solution, which affect the electrode level. It is usually made of glass and commonly known as PH glass electrode measurement. Mathematic defines pH as a commonly used congenital negative value for the concentration of hydrogen ions, i.e. pH=-lg[H⁺]
Specification:
| Product Name | PH ORP meter |
| Product Model | APX2-G4 A/D |
| Software Version | DRFN PH Analysis software V1.0 |
| pH Range | -2～16pH |
| ORP Range | ± 2000mV |
| Ground | Differential signal (Compatible with ground sensor) |
| Temperature Range | -10～150℃ /14~302℉ |
| Resolution | 0.01pH / 1mV/ 0.1℃ |
| Accuracy | PH:±0.02 pH /ORP:±2 mV |
| Temperature Compensation | Automatic or manual(NTC10K or PT1000) |
| Relay Control | 2 settable SPST relays, maximum load 3A / 250VAC |
| Communication | RS485 Modbus RTU |
| Signal Output | Two 0/4~20mA current outputs maximum load 1000Ω |
| Sensor Diagnosis | Image display |
| Configuration | Power failure protection, indefinite retention of parameters |
| Time/Data recording | Record 14,000 historical data; Save the last 100 maintenance data |
| Language | Chinese and English |
| Protection Grade | IP66 |
| Enclosure Material | Enhanced ABS |
| Power Supply | AC: 100~240V or DC:18~36V |
| Dimension | 144*144*120mm |
| Hole Size | 138*138mm |
| Operating Temperature | 0～60℃, RH<95%, non-condensing |
| Storage Temperature | -20～70℃, RH<55%, non-condensing |
| Installation Method | wall mounting, pipe clamp, panel |
| Weight | 900g |
| Power Consumption | About 7W |
Please click Catalog here:
Daruifuno Catalog.pdf
Brief introduction:
- PH glass electrode measurement method, applied to various PH/ORP monitoring and dosing control occasions;
- Configuration, and fault analysis of the instrument.
- Differential signal PH/ORP online controller, stable measurement and strong anti-interference ability;
- Support a variety of installation methods, wall mounting, pipe clamp installation, panel installation;
- Clock and historical data recording function to meet higher data management requirements;
- 128*64 large LCD screen,multiple languages available;
- Record 14,000 historical data, and the recording interval can be set between 1 and 999 minutes;
- The protection grade of the enclosure is IP66;
- Two settable SPST multifunctional relays;
- Two high-precision 0/4~20mA current outputs;
- A two-wire RS485 interface, the communication protocol is MODBUS RTU;
- 128*64 large LCD screen, multiple languages available;
- The menu password can be set to facilitate hierarchical management;
- The meter can not only perform temperature compensation on the test sample, but also self-check the operating temperature of the instrument, compensate for the hardware temperature changes caused by temperature drift, and make the test results more accurate;
- Provide AC and DC power supply modes, both of which are wide-voltage power supply.
Aplication:
Water treatment monitoring
Drinking water,surface water,water quality analyze,ground water,ect.
Industrial process monitoring and dosing control
Chemical,petroleum,paper,food and medicine,PCB manufacturing,etc.
FAQ
Q1. Does the instrument have a self-diagnostic function and how does it prompt?
A: The pH meter has self-diagnosis function.When the instrument is in calibration and maintenance,it can diagnose the PH/ORP sensor,if there is improper operation or poor PH/ORP sensor characteristics, the screen makes an image display and advises the user to re-maintain or replace the sensor.
Q2. What are the special advantages of the pH instruments?
A: The instrument can not only compensate the temperature of the test sample by connecting the temperature sensor, but also self-check the working temperature of the instrument in real time. When the working temperature of the instrument changes, the instrument compensates the hardware change caused by the temperature drift. Make the test results more accurate, this is a patented technology.
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