ST-L506A wall mounted online PH/ORP meter, equipped with German imported accessories, outputs various remote signals with stable performance, high accuracy, and easy installation. It is suitable for pH monitoring and analysis in major industries such as water treatment plants, sewage treatment plants, and chemical plants.

The main features of ST-L506A wall mounted online PH/ORP meter are:

◇ Large screen dot matrix LCD display, Chinese menu operation.

Simultaneous display of multiple parameters: PH/ORP values, temperature, output current, alarm points, etc. are displayed simultaneously, which is intuitive and easy to read.

◇ Automatic/manual temperature compensation function.

The PH/ORP value can be set with incremental compensation.

Communication function: Equipped with RS-485 communication interface (partially compatible with MODBUS protocol) (optional), capable of converting to RS-232. The PH/ORP 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.

◇ Factory settings can be restored.

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, waterproof, moisture-proof and dustproof.

ST-L506A Wall mounted Online PH/ORP Meter Easy Installation Technical Specifications

1. Measurement range: -2.00~16.00 (PH), -1999~1999mV (ORP), 0~130.0 ℃

2. Resolution: 0.01PH, 1mV, 0.1 ℃

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

4. Stability: ≤ 0.01pH/24h, ≤ 1mV/24h

5. PH standard solution: 6.86/4.00/9.18

6. Temperature compensation: 0-99.9 ℃

7. Calibration range: Zero point ± 1.45; Slope ± 30%

8. Control interface: Four 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 ＜ 750 Ω (4-20mA)

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

15. Size: 218 × 183 × 126 mm

16. Installation method: Wall mounted

17. Weight: 1.5Kg

18. Protection level: IP65, waterproof, moisture-proof, dustproof.

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