WPLLD Site Prep and Installation Guide
WPLLD System Checkout Procedure
6-2
b. When a WPLLD transducer is transmitting*:
At least 2 of the red LEDs are flashing and the green (data) LED is flashing.
*8 seconds after power to the STP is turned On, the WPLLD transducer will transmit its first message. Every 8
seconds thereafter for up to 4 minutes, the transducer will transmit an additional message.
2. The R101 jumper position is the highest gain position and R93 is the lowest gain position.
3. Remember that as you increase the gain, you increase the signal strength as well as any noise on the line.
4. IMPORTANT! Some sites may use different phases of 240 Vac power for each submersible pump power source.
Although this situation does not always prevent the WPLLD transducer from communicating, it can cause
intermittent Comm Alarms. Therefore, it is required that each submersible pump use the SAME phase of 240 Vac
power.
WPLLD System Checkout Procedure
Do not turn on power to the console. This must be done by an authorized Veeder-Root Authorized Service the warranty
checkout and Start-Up Procedure!
A Veeder-Root Authorized Service Contractor must program the WPLLD set-up information into the console before
beginning this procedure.
PRESSURE OFFSET
New transducers are now factory sealed and their internal chamber cannot be equalized to atmospheric pressure by
opening a vent screw as in the past. The Pressure Offset test procedure described in this section must be performed when
using new WPLLD transducers with serial numbers of 100,000 or above, in sites located at altitudes above 2,000 feet.
Note: this procedure can also be used with transducers having serial numbers below 100,000 instead of using the vent
screw to equalize pressure.
Before this procedure is performed, the pressure in the line MUST be vented to zero. It is recommended that this
procedure be performed immediately after installing the transducer, before energizing the STP.
VENTING THE LINE
1. Turn Off, lock out, tag power to the STP.
2. Vent the line to zero.
3. Reseal the line.
WARNING! - The STP is actually turned On in this procedure. To prevent accidental discharge of product
from the line, be sure to reseal the lines after venting.
4. Turn On power to the STP.
DETERMINE WPLLD TRANSDUCER PRESSURE OFFSET
Press MODE to display DIAGNOSTIC MODE, then FUNCTION until you see the message:
From the WPLLD Diag message, press STEP until you see the display below
OFF
WPLLD LINE LEAK DIAG
PRESS <STEP> TO CONTINUE
W 1: WPLLD NUMBER 1
P OFFSET TEST <ENTER>
