Optional Parts and Eaubment
Digital readout
Parent machine interlock (PMI)
(continued)
During a power failure or a temporary shut down of the applicator, the
parent machine interlock will operate in the same way, no matter how
the switch on the interlock board is set. If, after power is restored, it
takes less than 6 minutes for the tank temperature control circuit to
begin proportioning (and its yellow LED to begin flashing), the output
relay will be deenergized only until the set temperature is reached
again. But if it takes longer than 6 minutes for the set temperature to be
reached, the output relay will be deenergized until the time delay has
elapsed.
Parent Machine Interlock is an optional feature which may be either
purchased with the applicator or added at a later date.
See Section 3, Installation, for instructions on installing and setting up
Parent Machine Interlock.
Digital Readout provides a numerical LED display of the temperature
reading on any channel, or heating zone. A three-digit temperature
display window and a channel selector switch are located on the control
panel of applicator (see Figure 10.1). The selector switch determines
which channel-the tank channel or any of the gun or hose
channels-will be displayed. Because the temperature is displayed
instantaneously, the temperature on all channels can be quickly
monitored by turning the selector switch from channel to channel. Or a
single channel can be monitored continuously by leaving the selector
switch in one position.
A small red switch along the lower edge of the circuit board allows the
customer to select whether the temperature will display in ‘F or ‘C.
Pushing the right half of the switch in (with a pencil or some other
pointed object) selects the ‘F readout; pushing the left half of the switch
in selects the ‘C readout.
.
NOTE: If the selector switch is turned to an unused channel, a number
between 725 and 735 if ‘F readout is selected (or between 950 and 960
if ‘C readout is selected) will appear in the temperature display window.
This number has no significance and does not mean that any channel
is overheating.
Digital Readout is available only on the Model 2302 (two-hose), the
Model 2304 (four-hose) and the Model 2305 (five-hose) units. It must
be ordered at same time the unit is purchased; it cannot be added later
without ordering a new circuit board.
2
7
000
Figure lO.l-
Controls and Indicators on
Units with Digital Readout:
1 Channel Selector Switch
2 Temperature Display Window
Q Nordson Corporation 19%
All Rights Reserved
P/N 106 701A
41-2300SP - Issued 1194
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