TECHNICAL INDEX

1、 Display mode: Double row digital tube (pHS-2C, pHS-25 are single row)

2、 Measurement range:- 2～18.00pH，- 1999～+1999mV， 0～99.9℃

3、 Resolution: 0.01pH，0.1mV，0.1℃

4、 Accuracy:

1) PHS-3B, 3C ± 0.01pH, ± 1mV, ± 0.3 ℃

2) PHS-2C ± 0.02pH, ± 0.2% FS (mV)

3) PHS-25 ± 0.05pH, ± 0.5% FS (mV)

5、 Temperature compensation range: automatic/manual 0-99.9 ℃

6、 Temperature compensation: Nernst electrode slope temperature compensation, converted to 25 ℃ for pure water and ammonia added ultrapure water

7、 Input impedance:> ten¹²Ω

8、 Communication interface: RS232 bidirectional communication

9、 Power supply: AC220V ± 22V, 50Hz ± 1Hz, external power supply

10、 Working conditions: ambient temperature 0-60 ℃, relative humidity ≤ 90 ℅

11、 Power off storage:>5 years

12、 Calibration method: One point calibration, two-point calibration

13、 Size and weight: 202x202x68mm, 1.0Kg

Standard configuration

One pHS-XX secondary meter, one HT5 power supply, one T226 composite electrode, one T22 temperature electrode (only available for pHS-3B), one set of electrode holder, and one set of standard buffer solution.

main features

Double row digital tube: displays pH value/mV and temperature value respectively. Microcomputerization: Using high-performance CPU chips, high-precision AD conversion technology, and SMT surface mount technology, it completes multi parameter measurement, temperature compensation, instrument self-test, high accuracy, and good repeatability. High reliability: Single board structure, touch sensitive buttons, no switch knob. 25 ℃ conversion: Nernst electrode slope temperature compensation, conversion for pure water and ammonia added ultrapure water at 25 ℃. Input impedance>10¹²Ω. Waterproof and corrosion-resistant design. Automatic conversion of standard solution temperature: The temperature curve of the standard solution is pre stored, and the pH value of the standard solution at the set temperature is automatically converted during calibration. Automatic identification of incorrect calibration: If the user uses standard buffer solution incorrectly during calibration, the instrument will automatically prompt. Network function: RS232 bidirectional communication, compatible with printer or TLab1.0 communication and data processing software. Industrial control watchdog: ensures that the instrument does not freeze and automatically prompts the measurement endpoint

TLab1.0 software displays instrument parameters, measured values, and curves

The main differences among the four models are: 1. Different accuracies. 2. pHS-3C, pHS-2C, and pHS-25. Temperature compensation can only be manually inputted. 3. pHS-2C and pHS-25 are displayed on a single row digital display

Ordering Guide

It is necessary to inform the measured medium for easy electrode selection.