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Conductivity/Concentration Transmitter - DDM-200/DDM-200C Series

? Output signal (All isolated): 4-20mA (2 wire); 0-2V(option); Rs485(Modbus/RTU) (Option)
? Calibration: 2 point calibration.
? Protection: IP65
? Accuracy: ±1%F.S.
? Power supply: 5VDC, 24VDC (DC10~28V)
? Pressure: <0.6MPa. < 2.5Mpa (Optional)
? Strong anti interference, fast response.
? Easy mounting.

Model Number: DDM-200/DDM-200C Series
Data Sheet:

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Product Specification

DDM-200/DDM-200C Series Conductivity/Concentration Transmitter

This product is one of the conductivity transmitter, protection class IP65 / IP68, can be installed directly into the formula, suitable for all occasions need to measure conductivity, such as water treatment, aquaculture, marine environment monitoring, CIP and other industries.

Conductivity/Concentration Transmitter Typical applications
● Pure water / drinking water / surface water / variety of water supply / industrial sewage.
● Acid, alkali and salt solution / chemical reaction process / industrial manufacturing process.
● Soilless cultivation / flower greenhouses / aquatic farming / swimming pool.
● DDM-200C: concentration measurement for acid alkali and salt solution.

Conductivity/Concentration Transmitter Instrument characteristics
● Easy connect to PLC, industrial computer, controller, data logger or touch screen for online monitor and control.
● Strong anti interference, fast response.
● The probe use gold plate VP header for plug connection. Threaded fastening, very easy to replace the probe.
● Easy mounting. The 3/4” NPT thread is easy for pipe and tank mounting. The probe can be also separated with the display header, connect by cable.

Conductivity/Concentration Transmitter Technical Specifications

	DDM-200	DDM-200C (Percentage concentration)
Output signal (All isolated)	4-20mA (2 wire); 0-2V(option); Rs485(Modbus/RTU) (Option)
Display	LED model: 4 bits LED display. Just display conductivity / concentration value. LCD model: show conductivity / concentration value and temperature.
Operation	2 button for operation (LED model) 3 buttons for operation (LCD model)
Calibration	2 point calibration.
Protection	IP65
Scale (Other scale can be ordered)	0.01~20μS/cm (0.01cm^-1), 0.1~200μS/cm (0.1cm^-1), 0~5000μS/cm (1.0cm^-1), 0.1~400mS/cm (4-electrode sensor) 0~2000mS/cm (Inductive sensor)	0~15% NaOH, 0~15% HCL, 0~15% HNO3, 0~30% NaCL, 0~25% H2SO4, 0~20% Acetic. (Inductive sensor
Resolution	0.01μS/cm (0.01cm^-1), 0.1μS/cm (0.1cm^-1), 1μS/cm (1.0cm^-1), 0.1mS/cm (4-electrode sensor) 1mS/cm (Inductive sensor)	0.01%
Accuracy	±1%F.S.
Thread	3/4" NPT thread
Power supply	5VDC, 24VDC (DC10~28V)
Temperature	0~65℃ (The highest temperature conductivity constant 0.01cm^-1, 0.1cm^-1 can be custom-made 0 ~ 140℃) (The highest temperature conductivity constant 1.0cm^-1, Electromagnetic electrode can be custom-made 0 ~ 100℃
Auto temperature compensation	PT1000 (NTC 10K / PT100 is optional)
Pressure	<0.6MPa. < 2.5Mpa (Optional)
Case	NYLON / PPS	NYLON / PPS