7
Vaporless Manufacturing, Inc.
8700 East Long Mesa Drive, Prescott Valley, Arizona 86314
800-367-0185 928-775-5191 Fax: 928-775-5309
Email: [email protected] Web Site:
www.vaporless.com
4.
The procedure is as follows: Adjust the fuel flow using the left-hand knob labeled
C
ALIBRATE
O
RIFICE
. Adjust the pressure on the left-hand pressure gauge to 10 psi using the right-hand
knob labeled C
ALIBRATE
P
RESSURE
.
Turn the
O
RIFICE
knob counterclockwise to increase flow and clockwise to decrease flow.
Turn the
P
RESSURE
knob counterclockwise to reduce pressure and clockwise to increase
pressure.
First adjust the flow using the
O
RIFICE
knob and then adjust the gauge pressure using the
P
RESSURE
knob. It is important to perform the procedure in this order.
5.
Using the small beaker (250 ml) collect a sample of fuel over a 30 second interval. The flow
is properly adjusted when 95 ml are collected in 30 seconds. This volume is equivalent to a
rate of 3 gallons per hour at 10 psi. Repeat the procedure outlined in step 4 until the correct
volume of fuel is collected in the specified time.
6.
Set the selector to the
P
RESSURE
S
TEP
T
EST
position and remove the dispenser authorization.
7.
Reduce Line Pressure to Zero
With the large beaker under the LDT-890 discharge hose, set the selector to the
D
ISPENSER
N
OZZLE
position. Fuel will begin to flow into the beaker. After the reading on the right-hand
pressure gauge falls to zero, set the selector to the
P
RESSURE
S
TEP
T
EST
position.
8.
Read Operating Pressure
Authorize the dispenser. The turbine will start running. Watch for the turbine to achieve
operating pressure as seen on the right-hand pressure gauge. Note this pressure reading and
then remove the authorization from the dispenser.
9.
Reduce Line Pressure to Zero
With the large beaker under the discharge hose, set the test unit’s selector to the
D
ISPENSER
N
OZZLE
position. Fuel will begin to flow into the beaker. After the reading on the right hand
pressure gauge falls to zero, set the test unit’s selector to the
GPH
T
EST
position and authorize
the dispenser.
10.
3 GPH Leak Test
With the dispenser authorized, the turbine will start running. With the selector in the
GPH
T
EST
position a 3 GPH leak has been introduced to the system. On the right-hand pressure gauge
watch for the turbine to build pressure. If the mechanical leak detector is properly calibrated
this pressure should not reach the normal operating pressure previously observed. Note this
lower pressure value. Remove the authorization from the dispenser.
11.
Reduce Line Pressure to Zero
Set the test unit’s selector to the
D
ISPENSER
N
OZZLE
position.
Fuel will continue to flow into the
beaker. After the reading on the right-hand pressure gauge falls to zero, set the selector to the
GPH
T
EST
position and again authorize the dispenser.
