1. Description PH/ online industrial conductivity meter (hereinafter referred to as instrument) is a water quality online monitor with microprocessor. The instrument configuration of different types, different constant conductivity electrode and the different types of pH electrode for the water conductivity of solution, pH value and temperature value of continuous monitoring and control. Widely used in power plants, petrochemical, metallurgy, paper environmental protection, water treatment, electronics and other fields such as light industry. The power plant cooling water, supply water, saturated water, condensed water and boiler water, ion exchange, reverse osmosis EDL, seawater distillation water equipment, water and water quality monitoring and control. The instrument adopts LCD liquid crystal display, intelligent English menu operation, with current or voltage output, free setting of measurement range, high and low limit alarm prompt and two sets of relay control switches, adjustable hysteresis range, automatic or manual temperature compensation.
2. Features Intelligent:using single chip microprocessor to complete the value of the conductivity of PH, temperature measurement and compensation; The man-machine dialogue menu operation structure, users follow the prompts on the screen can operate; The multi screen display and display parameters: conductivity value, temperature and working condition; The software to set the output mode: software 0 ~ 20mA or 4 ~ 20mA, 20 ~ 4mA output; The calibration of various optional; The measuring range and limit alarm, set free, overrun alarm limit; The two group of relay control, hysteresis control range is adjustable; The password and service guide or self: the user can modify the password, to avoid irrelevant personnel into the misoperation; provide technical support and customer service service contact method for the user. 3. Technical indexes
(1) Conductivity (Measuring range can be switch): Conductivity: 0~20µS·cm-1 (K=0.01) 0~200µS·cm-1 (K=0.1) 0~20mS·cm-1 (K=1.0) PH: 0.01~14.00pH Temp: 0~150ºC (meter display temp, according to the sensor matched) (2) Resolution: Conductivity: 0.01µS·cm-1; 0.01 mS·cm-1 PH: 0.01pH Temp: 0.1ºC (3) Basic error of instrument: Conductivity: ±1.0%F·S±1 unit, Temp: ±0.3ºC pH: ±0.05pH (4) Automatic or manual temperature compensation range for electronic units: 0~150ºC (25ºC as the basis) (5) Automatic temperature compensation error of electronic unit: ±0.3%F·S (6) Stability of electronic elements: ±0.1%F·S±1 unit /24h (7) Repeatability error of electronic unit:≤0.1%F·S±1 unit (8) Electronic unit alarm error: ±1%F·S (10) Output current error of electronic unit: ±1%F·S (11) Current output:0~20mA( up load<1.5KΩ) 4~20mA(up load<750Ω)20~4mA(up load<750Ω) (12) Two Relay contacts: 4A 250VAC, 4A 30VDC (13) Power supply (Optional): 85~265VAC±10%,50±1Hz, ≤3W9~36VDC, ≤3W (14) Dimension: 96×96×130mm (15) Installation mode: Panel type (Insertion type) Opening hole : 91×91mm (16) Weight: 0.6kg (17) Working environment 1) Ambient temp: -10~60ºC 2) Relative humidity: less than 90% 3) There is no strong magnetic interference around the earth's magnetic field.
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