Two Channel Controller TOPAX DE
Important values securely under control
The further developed TOPAX DE is based on the proven and tested modern technology of our multi-channel controller TOPAX DX and is available in different versions. The modular design makes the TOPAX DE to adaptable and highly compatible partner in the field of measuring and control technology. With the option of connecting it directly to a variety of sensors to measure the water parameters, every TOPAX DE version fulfils the demands for optimal water preparation.
Two-Channel Controller TOPAX DE
- Measuring free chlorine with open amperometric 2-electrode measuring cell, 3-electrode measuring cell with potentiostatic control or diaphragm-covered measuring cells
- Measurement of the pH value and temperature
- Redox measurement for disinfection control
- Display of the effective chlorine according to dissociation curve
- 4 measurement values and 5 digital inputs, galvanically isolated
- Analogue outputs 0/4 … 20 mA for measurement or control values, galvanically isolated
- 2 controllers for controlling the parameter for disinfection and
the pH value - pH value compensation of the chlorine value
- Temperature compensation of the pH value
- Modbus protocol via RS 485
- Memory card for data logger and logbook
- Very easy to operate, guided start up
- Large display with operator guidance in plain language, a flat, multilingual menu structure and context oriented online help
- Integrated 24 h screen writer
- Display of the quality of the measuring cells during calibration
- Validity check during calibration
Further product views
| Display and controls | 5.7 inch, 320 x 240 pixels with background lighting |
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| Measuring input for free chlorine Measuring cell-options | Amperometric 2-electrode measuring cells, measuring range adjustable from 0 … 10 mg/l | ||
| Amperometric 3-electrode measuring cell with potentiostatic control, measuring range adjustable from 0 … 2 mg/l | |||
| Diaphragm-covered measuring cell, 0/4 … 20 mA, measuring range according to the sensor (max. 10 mg/l) |
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| Further measurement inputs | |||
| Digital inputs | Inputs for: |
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| Connection of the inputs and outputs | By means of terminal blocks, max. 1 mm2 | ||
| Control characteristic for 2 inputs (disinfection and pH value) | |||
| Disturbance variable (optional) | 0/4 … 20 mA programmable, disturbance factor: 0.1 … 10 times amplification | ||
| Controller outputs (each as per the configuration) | 3 digital outputs, optocoupler, 48 V DC; 250 mA, pulse frequency 10 … 350 pulses/min. | ||
| 5 relay outputs programmable as |
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| Analogue outputs 0/4 … 20 mA, max. load 500 Ohms | |||
| Alarm output | Relay output as collective alarm for the measured variables of free chlorine, pH value, Redox potential, temperature as potential free changer | ||
| Measurement value alarm, min. and max. alarm freely adjustable. Time delay adjustable max. 200 minutes | |||
| Safety cutout To prevent overdosing (Y-alarm), time delay adjustable: max. 200 minutes |
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| Current outputs for remote transfer of the measured value to the inputs | Current outputs for each measured value 0/4 … 20 mA possible spreading; max. load 500 Ohms potential free | ||
| Significant geometric spreading: >50 % with measuring input free chlorine and 0/4 … 20 mA >10 % during measurement input of pH value and Redox potential |
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| Interface (optional) | Modbus protocol via RS 485 | ||
| Load capacity of the relay | 230 V / 50 Hz, 3 A | ||
| Protection class | IP65 with locked screw connections | ||
| Ambient temperature | °C | -5 … +45 | |
| Supply voltage | VAC | 90 … 264, short circuit and overload-proof | |
| Power consumption | VA | 24 | |
| Housing dimensions | mm | 302 x 231 x 107 (W x H x D) wall-mounted housing | |
| Weight | kg | 2 … 2.5 |
Subject to technical changes
BA: Operation instruction
PI: Product information
Lutz-Jesco Middle East FZE
Office P6-16, P.O. Box 9614
SAIF-Free Zone Center
Sharjah
Phone: +971 6 5572205
Fax: + 971 6 5572230
mailto:info(at)jescome.com