Description
Overview
GAOTek conductivity meter sensor is an online water quality monitoring instrument with a microprocessor. This instrument is equipped with conductivity electrodes of different types and constants for continuous monitoring and control of the conductivity and temperature values of aqueous solutions. Widely used in fields such as power plants, petrochemicals, metallurgy, paper industry, environmental water treatment, light industry electronics, etc. Monitoring and control of raw and produced water quality for water production equipment such as power plant cooling water, make-up water, saturated water, condensate and boiler water, ion exchange, reverse osmosis EDL, and seawater distillation.
The instrument adopts an LCD display screen: intelligent menu operation, equipped with 2 current outputs, freely set measurement range, high and low limit alarm prompts, two sets of relay control switches, adjustable hysteresis range, and automatic cleaning switch settings: automatic or manual temperature compensation. Multiple automatic calibration methods for electrodes. According to user needs, electrodes can be installed in various forms such as flow through, immersion, pipeline, and flange.
Features
- An instrument (secondary meter) and a conductivity electrode (primary meter)
- Electrode contacts the measured solution
- Instrument displays the conductivity value and temperature
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Technical Specifications
| Measuring Range(ec) | 0.02 uS/cm to 20 uS/cm (with K=0.01 electrode) 0.2 uS/cm to 200 uS/cm (with K=0.1 electrode) 2.0 uS/cm to 2000 uS/cm (with K=1.0 electrode) 20 uS/cm to 20000 uS/cm (with K=10 electrode) |
| Measuring Range(tds) | 0.01 ppm to 10 ppm (with K=0.01 electrode) 0.1 ppm to 100 ppm (with K=0.1 electrode) 1.0 ppm to 1000 ppm (with K=1.0 electrode) 10 ppm to 10000 ppm (with K=10 electrode) |
| Accuracy | ± 2 % FS |
| Resolution | 0.01 uS/cm (ppm) |
| Stability(24H) | ± 1 % FS |
| Output |  Isolated transformer 4 mA to 20 mA output, maximum loop 750 ω, ≤ ± 0.2 % FS |
| Communication | RS485(Compatible with MODBUS RTU) |
| Alarm | High and low limit alarms each group (3 or 250 vac), Normally open contact relay |
| Power Supply | 220 vac ± 10 %, 50 Hz |
| Cable Length | Standard 16.40 ft (5 m) |
| Temperature Compensation | Manual or automatic (NTC10K or Pt1000) |
| Temperature Measurement Accuracy | 0.5 °F (± 0.5 ℃) |
| Temperature Range | 14 °F to 266 °F (-10 °C to 130 °C) |
| Opening Size | 3.34 in x 3.34 in (92.5 mm x 92.5 mm) |
| Dimensions | 3.78 in x 3.78 in x 4.33 in (96 mm x 96 mm x 110 mm) |