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November 2008 Part No. 920559 Rev H
3.6 Setting Blend Ratios
The procedure below is used to set the dispenser blend ratios. When enabled, the POS system verifies and
confirms that its blend ratio data corresponds to the manually set blend ratios. The Wayne POS system will
not allow fuel to be dispensed if these numbers do not match.
The pump computer recognizes code stored in memory that defines a dispenser model and assigns logical
nozzle numbers to the hose positions as explained in Section 3.3. Once this is done, the function F18 is
accessed to set the blend ratios, using the remote control interface. The sub-function F18.1N, where N is the
logical nozzle number, is used to set the blend ratios for side 1 and the sub-function F18.2N is used to set
the blend ratios for side 2. Active values of N are given in Table 3-1.
To set the blend ratio, the correct sub-function is accessed, the blend ratio is changed to its new value and
the data is saved. To access the desired sub-function, the following steps must be performed using the
remote control (Bold type denote remote control function and italicized type represents dispenser response):
NOTE: BLEND RATIOS MUST BE SET FOR SIDE 1 AND AGAIN FOR SIDE 2.
To access the Blend Ratio sub-function:
1. Press ENTER
PASS 1 (enter password)
2. Press ENTER
PA SS 2 (enter password)
3. Press ENTER. The unit price display will show F— (indicating that it needs a function number to pro-
ceed)
4. Press 18 to access F18
5. Press ENTER. The unit price display will show F18 (indicating that the function has been accessed)
6. Press ENTER to access the sub-functions of F18. The unit price display will show 18.11 (here N=1)
The volume display will indicate the value of the blend ratio corresponding to logical nozzle #1(N=1). If
there is no data for this logical nozzle, the number “101” will be displayed. This applies to all logical noz-
zles. To access the blend ratio for the next logical nozzle, press NEXT. The unit price display will show
18.12 and the volume display will show whatever the value of the blend ratio is for logical nozzle #2. Suc-
cessive presses of NEXT will advance the unit price display to 18.17, the last logical nozzle. Pressing
NEXT again will advance the unit price display to 18.21
, The “2” in “18.21” indicates Side 2 and the “1”,
logical nozzle #1. The volume display will show the blend ratio assigned to logical nozzle #1 of Side 2.
Changing the Value of the Blend Ratio
1. When the desired logical nozzle is shown on the unit price display, enter the desired value of the blend
ratio by using UP and DOWN keys on the remote control interface or by typing the # sign followed by
the value of the blend ratio, followed by ENTER. For example, to change the value of the blend ratio
from 101 to 89, press the DOWN button until 89 shows up on the price display, then press ENTER, or
type in #89, ENTER.
2. Continue until all the blend ratios are entered for side 1.
3. Repeat for side 2 and save as follows:
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