Description
Overview
GAOTek automatic benchtop liquid pH meter is an online water quality monitor with a microprocessor. The meter adopts an LCD liquid crystal display. Intelligent Chinese menu operation; It has current output, free setting of measurement range, high and low overlimit alarm prompt, two sets of relay control switches, and adjustable hysteresis range. Automatic or manual temperature compensation. There are many automatic calibration methods for electrodes. pH (or ORP) electrodes of various installation processes such as flow type, submersible type, pipe type, flanged type, and so on can be provided according to the needs of users.
Features
- Instrument characteristics
- Ending LCD with a large LCD screen
- Terminal Chinese intelligent menu operation
- Available at both ends
- The output mode of the terminal signal is optional
- Terminal manual and automatic temperature compensation
- Both relay control switches
- Control of upper limit, lower limit, and hysteresis
- The pH (or ORP) and temperature values
- Complete password protection
Technical Specification
| Measurement range pH | 0 pH to 14 pH |
| Measurement range ORP | -1999 mV to +1999 mV |
| Resolution pH | 0.01 PH |
| Resolution ORP | 1 mv |
| Basic error pH | ±0.1 pH |
| Basic error ORP | ±5 mv |
| Stability pH | 0.02 pH or 24 h or less |
| Stability ORP | 2 mv or 24 h or less |
| Standard current output | 0 mA to 10 mA (load resistance < 1.5 K Ω); 4 mA to 20 mA (load resistance < 750 Ω) |
| Relay control contacts | 3 A or 240 V AC, 6 A 28 V DC or 120 V AC |
| Power supply | 220 V AC plus or minus 10%, 50 plus or minus 1 Hz, power less than or equal to 3 W; 24 V DC, power less than or equal to 1 W (optional); 12 V DC, power less than or equal to 1 W (optional) |
| Working Environment | Temperature: 50 °F to 140 °F (10 ℃ to 60 ℃) |
| Resolution Temperature | 33.8 °F (0.1 ℃) |
| Temperature compensation | 32 °F to 230 °F (0 ℃ to 110 ℃) |
| Measurement range Temperature | -23 °F to 230 °F (-5 ℃ to 110 ℃) |
| Basic error Temperature | ±0.9 °F (±0.5 °C) |
| Instrument appearance size | 3.77 in x 3.77 in x 5.11 in (96 mm x 96 mm x 130 mm) |
| Weight | 1.32 lb (600 g) |