Description
Key Features
- Double row nixie tubes display PH value/mV value and temperature respectively.
- Computer based: It adopts high-performance CPU chip, high precision AD conversion technology and SMT technology to complete the multipara meter measurement, temperature compensation and instrument self checking, with high precision and good repeatability.
- Reliability: Single board structure, touch button, no switch knob
- 25°C Conversion: Nernst electrode slope temperature compensation, pure water and ultrapure water with addition of ammonia converted at 25°C.
- Standard liquid temperature auto conversion: It pre stores the temperature curve of the standard liquid; in the calibration, it can convert pH value of the standard liquid automatically at the set temperature.
- Auto determination of error calibration: If the user wrongly uses the standard buffer solution the calibration, the instrument will prompt automatically.
- Network function: RS232 bidirectional communication, equipped with a printer or TLab8.0 communications and data processing software
Technical Specifications
| Measuring range
|
0~14.00pH, l999~+1999mV, 0~99.9°C (0 ~ 211.8 °F)
|
| Resolution
|
0.001 PH, 0.1 mV, 0.1°C(32.18°F) |
| Accuracy
|
±0.005pH, ±0.2mV, ±0.3°C (32.54 °F) |
| Input impedance
|
>1012Ω |
| Temperature compensation range
|
automatic 099.9° |
| Communication interface | RS232 bidirectional
communication |
| Output | 0 1400mV,
1mV / O. 01 PH |
| External power supply operating condition | Ambient temperature 0-60°C(0-140°F) ; relative humidity ≤ 90% |
| Power supply | AC220V ± 22V, 50Hz ± 1 Hz |
| Power down memory | >5 years; Clock accuracy: ± l minutes / month |
| Calibration method | One-point calibration, two-point calibration, manual input of E0 and S |