| Industrial
Process Controllers & Monitors alpha-TDS190
1/8 DIN Total Dissolved Solids Controller with Temperature Display and
Transmitter
 alpha
TDS190 with improved user interface enables user to gain direct access
to calibration mode with CAL key and allows quick set point adjustment
with SP1 and SP2 keys.
-
Quick
Set Point Adjustment -
SP1 and SP2 keys allow user to adjust set points easily
-
Direct
Access to CAL Mode -
enables user to enter calibration mode with a simple key press
-
User-Customisation
with scrolling, 14-Segment LED - intuitive user interface
guides user easily through setup functions
-
Multi
Measurement Range- User Selectable
-
Galvanically Isolated 4-20 mA
Output for remote monitoring or hardcopy recording
-
Universal Power Supply Input from 85 to 250 VAC/DC allows
use at multiple sites and withstands voltage fluctuations
-
Automatic
Temperature Compensation with 3-wire Pt 100 system ensures accurate
readings under fluctuating temperatures
-
Adjustable
Temperature Coefficient (0 to 5.0%/oC) and selectable cell
constants for more accurate measurements
-
Adjustable
Hysteresis (Dead Band) prevents rapid contact switching near set
point
-
Non-Volatile
Memory retains all stored
parameters and calibration data even if power fails
-
Easy Installation
and Wiring with detachable plug-in connectors
Applications
TDS 190:
Ideal for drinking water, monitoring and control, hydroponics and
aquaponic solution balance and control, pools and spa hardness and salinity
control.
Specifications
| Product
Code |
EC-TDSCTP0190 |
| TDS
Range |
Resolution |
Cell
Constant |
0.00
– 10.00 ppm |
0.01
ppm |
0.1 |
0.0 – 100.0 ppm |
0.1 ppm |
0.1 |
0.0 – 100.0 ppm |
0.1 ppm |
1.0 |
0 – 1000 ppm |
1 ppm |
1.0 |
0.00 – 5.00 ppt |
0.01 ppt |
1.0 |
0.00 – 10.00 ppt |
0.01 ppt |
1.0 |
0.0 – 100.0 ppt |
0.1 ppt |
1.0 |
0.0
– 100.0 ppt |
0.1 ppt |
10.0 |
| Relative
Accuracy |
±
1 % of full scale |
| Temperature |
-10
to 110 °C |
| Resolution/Accuracy |
0.1
/ ± 0.5 °C |
| Sensor |
Pt
100 (3-wire) |
| Temperature
Compensation |
Automatic
/ Manual (0 to 50 °C) |
| Temperature
Coefficient |
0.0
to 5.0 % |
TDS
Factor |
0.40
to 1.0 |
| Normalization
Temperature |
10.0°C
to 30.0°C |
| Set-point
And Controller Functions |
| Function |
Limit
Control |
Switching
Conductivity Hysteresis |
0
to 10% of full scale |
Contact
Outputs, Controller |
2
SPDT relays |
Switching
Voltage / Current / Power |
Max
250 VAC / Max 3A / Max 600 VA |
Signal
Output / Load |
4-20
mA galvanically isolated / 200 ohm |
Electrical
Data And Connections |
Power
Requirements |
85
to 260 VAC, 50/60 Hz or DC |
Rated
Input Current (MAX) |
100
mA |
Insulation
Category |
II |
Connection
Terminals |
3
Detachable connectors
(3-pin; 7-pin & 9-pin terminal blocks) +
1 FIXED CONNECTOR |
Main
Fuse |
250
mA, Anti-surge (BUSSMAN S504+250mA) |
| Environmental
Conditions |
Ambient
Temp. Operating Range |
-
10 to 50 °C (14 to 122 °F) |
Rel.
Humidity |
10
to 95 % (non-condensing) |
IP50
- Protection from dust; limited entrance (no harmful
deposit), but no protection against liquid |
Yes |
| Mechanical
Specifications |
Dimensions
(Panel Housing – W x H x D)
|
96
x 48 x 150 mm |
Weight
|
300g
(350g boxed) |
Accessories
| Product |
Order
No. |
Conductivity
cell, Epoxy body, Graphite sensor, w/3-wire
Pt100, k = 0.1 |
ECCONSEN89X |
Conductivity
cell, Epoxy body, Graphite sensor, w/3-wire
Pt100, k = 1.0 |
ECCONSEN88X |
Conductivity
2 Cell type probe, 0.1 - 200µS; Cell constant,
K=0.1 with integrated Pt 100, Material SS316 and 25ft cable
(open-ended) |
EC-CS10-0-1S |
Conductivity
2 Cell type probe, up to 200 mS; Cell constant,
K=1.0 with integrated Pt 100, Material SS316 and 25ft cable
(open-ended) |
EC-CS10-1-0S |
Note:
Please contact your authorised distributor or dealer for the prices
of extension measuring cables and other accessories like tee joints,
electrode assembly, and calibration solutions.
 
Copyright © 1997 Eutech Instruments
Pte Ltd. marketing@eutechinst.com
|
