GDS-15-PH 0519
8
OVERFILL ALARM LAMP
• The OVERFILL ALARM LAMP is lit whenever the Venting Drum is full
If the “OVERFILL ALARM” lamp is lit:
1.
Turn the MAIN SWITCH off (down position)
2.
Place a suitable container under Valve #2 (Pump Input Valve)
3.
Open Valve #2 and drain some of the solution (approx 5 gallons, 19 liters) from the
Venting Drum into the container, until the bottom elbow of the level sensor
is visible
4.
Close Valve #2
5.
Turn the MAIN SWITCH on (up position)
CLEANING IN PROGRESS LAMP
• The “CLEANING IN PROGRESS LAMP” is lit whenever the unit has injected
chemical into the system.
• If the pH controller does not inject any chemical concentrate for a period of one
hour, the lamp will go out, signaling that the pH has not risen in one hour and that
cleaning may be completed.
• When the cleaning is completed, the descaling solution should be neutralized and
discarded according to local, state and federal regulations.
pH CONTROLLER (DS-03)
• The pH Controller is the brains of the GDS-15-PH. It monitors the pH of the
descaling solution and injects chemical whenever the pH rises above the setpoint.
• The pH Controller can be used in three modes:
o OFF The pH Controller will display the current pH only (no control)
o AUTO The pH Controller will display the current pH, and turn on chemical
pump when the pH is above the current setpoint (automatic pH control)
o ON The pH Controller will display the current pH and continuously inject
chemical (Chemical Pump On)
1. Liquid Crystal Display
2. Switch for selecting dosing mode
• OFF = dosing disable
• Auto = automatic dosage, depending on
setpoint value and dosing selection
• ON = dosing always active
3. "MEAS" key to set the instrument to measurement
mode
4. "SET" key to display and set the setpoint value
5. "SET" trimmer to adjust the setpoint value
(0 to 14 pH)
6. "CAL" trimmer to adjust the pH offset value during
calibration
7. 3-color LED indicator:
• Greem = meter in measurement mode
• Orange/Yellow = dosing in progress
• Red, blinking = indicates an alarm condition
FUNCTIONAL DESCRIPTION
Front panel
1
2
7
6
5
3
4
