The ST-L506B high-precision online PH/ORP meter is a new generation of intelligent water quality detection instrument independently developed by our company. Featuring Chinese menu operation, high stability, repeatability, and multifunctionality, it can accurately measure the pH/oxidation-reduction potential (ORP) and temperature values in a solution. Widely used for online detection of pH/ORP values in solutions such as environmental protection, sewage treatment, thermal power, aquaculture, food processing, printing, metallurgy, pharmaceuticals, fermentation, chemical engineering, and tap water.

Key Features:

◇ Large screen dot matrix LCD display, Chinese menu operation, multiple parameter simultaneous display: PH/ORP value, temperature, output current, alarm point, etc. are displayed simultaneously, intuitive and easy to read.

◇ Automatic temperature compensation function.

Communication function: Equipped with RS-485 communication interface (partially compatible with MODBUS protocol) (optional), capable of converting to RS-232. The PH/ORP value corresponding to the 4-20 mA current output can be set arbitrarily.

◇ Optional upper computer online acquisition software from our company for data collection and processing.

◇ Notepad: PH/ORP mode can store 50 measurement data respectively, and users can record measurement data as needed.

◇ Historical curve (optional): The PH/ORP mode can automatically record the historical curves of 50 sets of measurement data, and can query data and set sampling time.

◇ Automatically recognize standard solution and restore factory settings.

Watchdog function: Ensure that the instrument panel does not crash.

◇ Power failure protection>10 years.

The core components come from foreign brands.

◇ Protection level: IP65

Technical specifications of ST-L506B high-precision online PH/ORP meter

1. Measurement range: -2.00~16.00 (PH), -1999~+1999mV (ORP), -10~130.0 ℃

2. Resolution: 0.01PH, 1mV, 0.1 ℃

3. Accuracy: ± 0.02 PH, ± 1mV, ± 0.3 ℃

4. Stability: ≤ 0.01pH/24h

5. PH standard solution: 6.86/4.00/9.18 7.00/4.00/10.01

6. Temperature compensation: 0-99.9 ℃ (pH)

7. PH correction range: zero point ± 1.45PH; slope ± 30%

8. Control interface: Two sets of ON/OFF relay contacts, divided into high point and low point alarm control.

9. Signal isolation output: 4-20mA isolation protection output

10. Relay: Relay hysteresis can be set arbitrarily, relay load 3A 220VAC

11. Working conditions: ambient temperature of 0-60 ℃, relative humidity ≤ 90%

12. Input impedance: ≥ 1 × 1012 Ω

13. Output load: load<500 Ω (0-10mA), load<750 Ω (4-20mA)

14. Working voltage: 220VAC ± 10%, 50/60Hz or ordered DC24V and DC12V power supply

15. Size: 100 × 106 × 168mm

16. Hole size: 92 × 92mm

17. Weight: 0.9Kg

18. Protection level: IP65

For more product information, please consult our toll free hotline at +0086 400 880 6367