Hydro-Logic PS-200 PANEL MOUNT DUAL TDS CONTROLLER/MONITOR User Manual
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Thank you for purchasing HM Digital’s PS-200. The PS-200 is a panel mount total dissolved solids (TDS)
controller that monitors and controls levels of TDS in water. The controller has a maximum set point to
help maintain a limit of TDS allowed in the product water, as well as a second sensor to monitor the TDS
level of the feed water. If the TDS level rises to the set point, the controller will activate a warning light,
sound an alarm (optional) and switch the dry contact position from the normal position (to operate a
valve, pump, etc.). Once the TDS level drops below the set point, this will deactivate the light and alarm
and switch the contacts back to the normal position (normally open or closed). NOTE: The IN mode &
sensor does not have an alarm nor control set point. It is a monitor only.
CONTACT INFO
BOX CONTENTS
SPECIFICATIONS
If you have any problems or questions regarding your controller, please contact HM Digital, Inc.
HM Digital, Inc.
5819 Uplander Way
www.tdsmeter.com
Culver City, CA 90230
1-800-383-2777
U.S.A
1. Controller
3. Two sensor cables (grey) 5. Mounting brackets
2. Two sensors (SP-1)
4. Power cord (black)
6. U.S. plug adapter
TDS Range:
0 - 999 ppm (mg/L)
Resolution:
1 ppm
Accuracy:
±2% (of the reading)
Temperature Compensation:
Automatic (ATC) (1-60
o
C)
Calibration:
Manual by trimmer pot calibration screw
Set-Point:
Single point, controlled by on-screen up/down buttons (to any point within the range)
Set-Point Relay:
single, isolated, 2A, Max. 220V, resistive load 100,000 strokes
Relay Control (out sensor only):
The unit will open or close a circuit via dry contacts when the
ppm level of the OUT sensor (aka product water) reaches or exceeds the control setting (simple
switch). It can be used to control a pump, solenoid valve or other device.
Relay Voltage:
5V (the connected device needs its own power source)
Alarm:
Optional steady beep (set by user)
Probe:
½” NPTF bushing
Cable Length:
3 meter (9.8 ft) shielded cable
Display:
Bright tri-color L.E.D.
Power Supply:
110V/230V, ±10% Vac; 50/60Hz
Enclosure:
Front and back with ABS
Environment:
-10 to 50
o
C (4 to 122
o
F); RH max 95% non-condensing
Dimensions:
7.2 x 7.2 x 10.2 cm (2.8 x 2.8 x 4 in.)
Monitor Weight:
476 grams (1 lb 0.8 oz)
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