Alpha TDS 200 Total Dissolved Solids Controller/Transmitter
- Advanced Security Two levels of password security to guard from unauthorised tampering
- Warranty This product is covered by a 1 year warranty
- Selectable Temperture Coefficient Ensures higher TDS accuracy
Overview
Measuring from pure water to electroplating rinse tank water is a simple process using the Eutech Alpha TDS 200. RS Hydro are proud distributors of this straightforward and reliable controller/transmitter which measures up to ±1% full scale accuracy across eight conductivity/TDS ranges. Enhanced TDS accuracy is delivered by using the selectable temperature coefficient while the user has the option of choosing either automatic or manual temperature compensation and three wire system compensates error due to cable resistance.
Calibration is simple push button process and handily the controller freezes data transmission and relay activities during calibration and maintenance. For heightened security the Alpha TDS 200 has two levels of password security which protects calibration and meter settings from unauthorised tampering.
Additional features which aid the Alpha TDS 200 to be a flexible device are the full scale 4 to 20 mA galvanically isolated current output for process control and the 85 to 250VAC. 50/60 Hz or DC variable input enables the Alpha TDS 200 to be used in a wide range of supply voltages.
Manufactured by: Eutech Instruments
Model: Alpha TDS 200 Total Dissolved Solids Controller/Transmitter
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
Applications
TDS 200
Ideal for drinking water, monitoring and control, and hydroponics and aquaponic solution balance and control, pools and spa hardness and salinity control.
Specification
| Conductivity | |
| Range | ... to 10.00 ppm ; ... to 100.0 ppm ; ... to 1000 ppm ; ... to 5.00 ppt ; ... to 10.00 ppt ; ... to 100.0 ppt |
| Resolution | 0.01 ppm ; 0.1 ppm ; 1 ppm ; 0.01 ppt ; 0.1 ppt |
| Cell Constant | 0.1 ; 1 ; 10 |
| Relative Accuracy | ±1 % of full scale |
| Temperature | |
| Range | -10 to 110 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.5 °C |
| Sensor | Pt100; 2 or 3 wire |
| Compensation | Auto/manual (0 to 50 °C) |
| Coefficient | 0.0 to 5.0 % |
| Normalisation | 10.0 °C to 30.0 °C |
| TDS | |
| Factor | 0.40 to 1.0 |
| Set Point And Controller Functions | |
| Set Point 1 (SP1)/ Set Point 2 (SP2) |
... to 10.00 ppm or ... to 100.0 ppm or ... to 1000 ppm or ... to 5.00 ppt or ... to 10.00 ppt or ... to 100.0 ppt |
| Switching Conductivity Hysteresis | 0 to 10 % of full scale |
| Switching TDS Hysteresis | 0 to 10 % of full scale |
| Function | Limit control |
| Contact Outputs | 2 SPDT relays |
| Switching Voltage/ Current/Power |
Max. 250 VAC / max. 3 A / max. 600 VA |
| Electrical Data and Connections | |
| Transmitter Function | 4 to 20 mA scalable outputs for Conductivity, galvanically isolated |
| Load | 200 Ohm |
| Conductivity/TDS Input | 2-pin terminal |
| Connection Terminal | 3-pin, 7-pin & 9-pin terminal, detachable blocks, 1 fixed connector |
| Display | |
| LED | 7 segments display |
| Power Supply | |
| Input | 85 to 250 VAC, 50/60 Hz |
| Main Fuse | 250 mA, anti-surge, S504 Bussman |
| Rated Input Current (Max.) | 100 mA |
| Insulation Category | II |
| EMC Specifications | |
| Emitted Interference | According to EN 61326 |
| Immunity To Interference | According to EN 61326 |
| Environmental Conditions | |
| Operating Temperature Range | -10 to 50 °C |
| Max. Relative Humidity | 10 to 95 % (non-condensing) |
| Mechanical Specifications | |
| Dimensions (WxHxD) | 96 x 48 x 150 mm |
| Weight | 300 g (unit) / 350 g (packed) |
| Ingress Protection | IP50 |