6
9
Range Adjustment
The OPTIMA ETF-660 and ETF-770 Faucets are factory set to operate
when hands are placed 8 to 10 inches (203 to 254 mm) from Sensor.
This range should be satisfactory for most installations.
If range adjustment is required, refer to the following range
adjustment procedures.
TO MAKE A RANGE ADJUSTMENT
The Range Potentiometer and Dip Switches are located in Control
Module. Refer to illustration in Step 6.
Important: Range Potentiometer adjustment screw rotates only 3/4 of
a turn; DO NOT over-rotate.
Make certain that Dip Switch number 4 is in the UP position. Using
the small screwdriver provided, adjust Range Potentiometer clockwise
until green (power ON) indicator LED turns red (Faucet is now picking
up sink). Adjust Range Potentiometer back counterclockwise until red
LED returns to green. Range is now at maximum.
Cycle Faucet several times to assure that range as adjusted will not
inadvertently pick up IR reflection in lavatory. If IR reflection occurs
(green LED will flicker red), adjust Range Potentiometer
counterclockwise very slightly and again cycle Faucet.
Repeat range adjustment counterclockwise until length of range is at
bowl rim of lavatory (plus or minus 1” (25 mm)).
Time Out Adjustment
The Faucet Time Out Setting determines the maximum time the
Faucet will run upon continuous activation. This timing can be
changed to meet individual application requirements.
Refer to Table 1 or label on cover of Control Module along with the
following instructions to set the desired Time Out. The Dip Switches
used to set the Time Out are located in the Control Module.
Set the Time Out by configuring the number 1, 2 and 3 Dip Switches
as shown in Table 1.
Table 1 — Time Out Settings
Unless otherwise specified, all ETF-660/ETF-770 Faucets leave the
factory set with a 30 second Time Out.
Note: The position of Dip Switch # 4 (range enhancer setting) does
not affect Faucet Time Outs.
Push Cables into slots at the bottom of the Control Module.
Install Control Module cover using Screws provided. Refer to
illustration in Step 7.
Time Out
Dip Switch Setting
Switch #1
Switch #2
Switch #3
3 SECONDS
UP
UP
DOWN
6 SECONDS
DOWN
DOWN
UP
12 SECONDS
UP
DOWN
UP
30 SECONDS
UP
DOWN
DOWN
45 SECONDS
UP
UP
UP
1 MINUTE
DOWN
UP
UP
3 MINUTES
DOWN
DOWN
DOWN
20 MINUTES
DOWN
UP
DOWN
1. A continuous invisible beam of
infrared light is emitted from the
OPTIMA sensor
2. As the user’s hands enter the
beam’s effective range, 8 to 10
inches (203 to 254 mm), the beam
is reflected back into the sensor
receiver and activates the solenoid
valve allowing tempered water to
flow from the faucet into the sink.
Water will flow until the hands are
removed or until the faucet reaches
its automatic time out limit setting.
3. When hands are moved away from
the OPTIMA ON-Q
®
sensor, the loss
of reflected light initiates an
electrical signal that deactivates the
solenoid valve, shutting off the
water flow. The circuit then
automatically resets and is ready for
the next user.
Test Faucet Operation
CARE AND CLEANING OF CHROME
AND SPECIAL FINISHES
DO NOT use abrasive or chemical cleaners (including chlorine
bleach) to clean faucets that may dull the luster and attack the chrome
or special decorative finishes. Use ONLY soap and water, then wipe
dry with clean cloth or towel.
When cleaning the bathroom tile, protect the faucet from any
splattering of cleaner. Acids and cleaning fluids will discolor or
remove chrome plating.
