TDS Meter

A TDS Meter indicates the Total Dissolved Solids (TDS) of a solution, i.e. the concentration of dissolved solids in it. Since dissolved ionized solids such as salts and minerals increase the conductivity of a solution, a TDS meter measures the conductivity of the solution and estimates the TDS from that.
Total dissolved solids (TDS) is a measure of the combined content of all inorganic and organic substances contained in a liquid in molecular, ionized or micro-granular (colloidal sol) suspended form. Total dissolved solids are normally discussed only for freshwater systems, as salinity comprises some of the ions constituting the definition of TDS. The principal application of TDS is in the study of water quality for streams, rivers and lakes, although TDS is not generally considered a primary pollutant (e.g. it is not deemed to be associated with health effects) it is used as an indication of aesthetic characteristics of drinking water and as an aggregate indicator of the presence of a broad array of chemical contaminants.
DMS Control System offered TDS meters come with advanced microprocessors as well as provision of auto temperature compensation that is highly desired in analytical instruments.

Product Versions:

1) TDS Indicator (Panel Type / Field type)
2) TDS Transmitter (Panel Type / Field type)
3) TDS Controller (Panel Type / Field type)

Specifications:

Parameter	TDS	mV	Temperature Range
Range	0 - 20.00 ppm	0 - ± 19.9 mV	0 - 100 °C0 - 100 °C
	0 - 200.0 ppm	0 - ± 199.9 mV	0 - 100 °C
	0 - 2000.0 ppm	0 - ± 1999.9 mV	0 - 100 °C
Resolution	0.01	0.1mV	0.5 °C
Accuracy	±0.01	± 0.1 mV	± 0.1 °C
Temperature Compensation Temperature Compensation	Type	Sensor	Range
	Auto	PT100	0 - 100 °C
	Auto	PT1000	0 - 100 °C
	Manual	--	0 - 100 °C
Calibration	1.00 ppm 2000 ppm any Std. Solution
Display	TDS	Full four Digit LED 7 Segment
	Maximum	0 to 9999 Counts
Keyboard	4 Keys, Soft Touch Membrane Type
Input impedance	Less than 100 mega Ohm
Accuracy	±0.5% full scale
Slope	98-100%
Response time	0.33 sec
Output	4-20mA
Dimensions	Panel	96 x 96 x 85 mm
	Filed	120 x 140 x 70 mm
Instrument Weight	0.4 Kg (Approx.)
Power	230 V ± 10% AC, 50 Hz
Accessories	Combination Cond Electrode, Temperature Probe PT100 / PT1000
	Combination Cond Electrode, Temperature Probe
	TDS Electrode Stand, Buffer
	Operation Manual