Conductivity / Resistivity Meter pH Meter (PHG-3081)

Product Description

Technical Indexes
1. Measuring range: PH value: 0~14.00pH; Division value: 0.01pH
          Electric potential value: ± 1999.9mV; Division value: 0.1mV
                        Temperature: 0~99.9ºC; Division value: 0.1ºC
2. Range for automatic temperature compensation: 0~99.9ºC, with 25 ºC as the reference temperature, (0~150ºC for Option)
3. Water sample tested: 0~99.9 ºC, 0.6Mpa
4. Automatic temperature compensation error of the electronic unit: ± 0 03pH
5. Repeatability error of the electronic unit: ± 0.02pH
6. Stability: ± 0.02pH/24h
7. Input impedance: ≥ 1X1012Ω
8. Clock accuracy: ± 1 minute/month
9. Isolated current output: 0~10mA(load <1 5kΩ ), 4~20mA(load <750Ω )
10. Output current error: ≤ ± L%FS
11. The data storage capacity: 1 month (1 point/5 minutes)
12. High and low alarm relays: AC 220V, 3A
13. Communication interface: RS485 or 232 (optional)
14. Power supply: AC 220V± 22V, 50Hz± 1Hz, 24VDC(optional)
15. Protection grade: IP54, Alluminium shell for outdoor use
16. Overall dimension: 146 (length) X 146 (width) X 150 (depth) mm;
Dimension of the hole: 138 X 138mm
17. Weight: 1.5kg
18. Working conditions: Ambient temperature: 0~60ºC; Relative humidity <85%
19. It can be equipped with a 3-in-1 or 2-in-1 electrode.

     


Features
New design, Aluminium shell, Metal texture.
1.Intelligent: This industrial pH meter adopts high-precision AD conversion and single chip microcomputer processing technologies and can be used for the measurement of the pH values and temperature, automatic temperature compensation and self-checking.
2.Reliability: All the components are arranged on one circuit board. No complicated functional switch, adjusting knob or potentiometer arranged on this instrument.
3.Double high impedance input: The latest components are adopted; The impedance of the double high impedance input can reach as high as l012Ω . It has strong interference immunity.
4.Solution grounding: This can eliminate all the disturbance of the ground circuit.
5.Isolated current output: Optoelectronic isolating technology is adopted. This meter has strong interference immunity and the capacity of long-distance transmission.
5.Communication interface: It can be easily connected to a computer to perform monitoring and communication.
6.Automatic temperature compensation: It performs automatic temperature compensation when the temperature is within the range of 0~99.9ºC.
7.Water proof and dust-proof design: Its protection grade is IP54. It is applicable for outdoor use.
8.Display, menu and notepad: It adopts menu operation, which is like that in a computer. It can be easily operated only according to the prompts and without guidance of the operation manual.
9.Multi-parameter display: The pH values, input mV values (or output current values), temperature, time and status can be displayed on the screen at the same time.