DDN seriesManufacturer of acid-base concentration transmitterAcid alkali concentration transmitter is an instrument that uses conductivity measurement method to measure the concentration of acid or alkali, widely used in beverage, food, chemical, pharmaceutical, power plant and other occasions.

main features

Compared with traditional concentration meters, it has the following advantages:

(1) Integrating sensing and conversion, with a novel structure, lightweight and flexible, and high reliability

(2) Standard signal output: two-wire standard signal 4-20mA

(3) Integrated hybrid assembly process, multiple structures, beneficial for users with different environmental needs

(4) Capable of working with both positive and negative power sources, with surge voltage protection and overload protection functions

Technical performance indicators

1. Range: 0-8% acid or 0-8% alkali (choose only one)

2. Power supply: 24VDC

3. Measurement of medium temperature: -10-40 ℃

4. The temperature compensation of the measured medium in the instrument is based on 20 ℃

5. Allowable ambient temperature: 0-40 ℃, humidity: ≤ 85%

6. Allowable pressure: ≤ 0.3MPa

7. Output signal: 4-20mA. DC, RL ≤ 500 Ω

8. Accuracy: ± 5% F.S

9. Drift: ≤ 2% F.s/24 hours

10. Protection level of transmitter housing: IP65

Product Model Naming

Installation and wiring diagram

1. Installation

If the medium solution in the pipeline is not filled during installation, the outlet shut-off valve should be adjusted to fill the pipeline with the medium solution

2. Wiring

The signal line does not need to be shielded, and using twisted wire is more effective. The signal line cannot be threaded through metal tubes or placed in the same cable tray as other power lines, nor should it pass near strong electrical equipment; Please take isolation measures when connecting to the computer system.