Alpha TDS 190 Total Dissolved Solids Controller / Transmitter
- Warranty This device is covered by a 1 year warranty
- Selelctable Temperature coeffcient Ensures higher TDS accuracy
Overview
RS Hydro are UK distributors of the Eutech produced Alpha TDS 190 controller/transmitter, if you require a reliable and straightforward controller/transmitter that measures from pure water to electroplating rinse tank water this is the ideal device for you. This device measures up to ±1% full scale accuracy across eight TDS ranges with selectable temperature coefficient for higher TDS accuracy at temperatures ranging from -10 to 110°C. Temperature compensation can be selected in either automatic or manual depending on the application and user preference. The addition to this a three wire sysetm compensates errors due to cable resistance to ensure the most accurate results.
Two SPDT relays allow high/low set-points limit control , each one of theses relays come with their independent hystersis to prevent relay chattering.
User friendly features of the Alpha TDS 190 are direct access to set point adjustment and calibration menu, while the controller freezes data transmission and relay activites during calibration and maintenance. One of the best features of this meter is the varied input from 85 to 250 VAC. 50/60 Hz or DC which enables a wide range of supply voltages for use in any environment.
This meter is covered by a 1 year meter warranty.
Manufactured by: Eutech Instruments
Model: Alpha TDS 190 Total Dissolved Solids Controller / Transmitter
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
- IoT Cloud Compatible
Applications
TDS 190
Ideal for drinking water, monitoring and control, 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 |