2-4
Equipment Familiarization
Distribution manifold
Tank, hose, and gun temperature
controls
NO. 4 HOSE CHANNEL
--YELLOW LED
--NO. 4 GUN CHANNEL
NO. 5 HOSE CHANNEL .
YELLOW LED
-- NO. 5 GUN CHANNEL
TANK CHANNEL
-- YEUOW LED
“FAULT” LIGHT d
RED LED
“WAIT” LIGHT FOR
-- PARENT MACHINE
INTERLOCK
c---LOW LEVEL
INDICATOR
Figure 2.4 - Model 23’05 Indicator Panel with
NO. 1 HOSE CHANNEL d
YELLOW LED
-- NO. 1 GUN CHANNEL
. NO. 2 HOSE CHANNEL
YELLOW LED
-- NO. 2 GUN CHANNEL
. NO. 3 HOSE CHANNEL
YELLOW LED
-- NO. 3 GUN CHANNEL
Parent Machine Interlock (PM/) and Low
Level Indicator Options:.
An aluminum manifold assembly mounted on the bottom of the hot melt
tank receives hot adhesive from the air-driven pump, filters it, and
distributes it to the heated hoses and extrusion guns. Because the
distribution manifold is mounted to the tank, it is indirectly heated by the
tank heaters.
The filter consists of a core and fine mesh screen to filter out
contaminants and char. The filter is threaded into a sleeve to prevent
overtorquing and allow easy removal for inspection and cleaning.
A drain valve in the manifold allows material to be pumped through the
filter assembly without the use of the hoses and extrusion guns. The
valve also provides a convenient method to relieve pressure in the
system during maintenance operations.
The manifold contains six ports for connecting hot melt hoses: four in
the side of the manifold and two in the bottom.
The temperature controller in Series 2300 applicators is a solid-state
device that monitors and controls the temperatures within the hot melt
tank and heated hoses and guns. Temperature is sensed in the tank
and in each of the hoses and guns by a resistance temperature
detector (RTD) in each component. Each of these heating zones or
channels has an operating range of 220°F to 400°F (105°C to 205°C).
l The six-hose, Model 2306 applicator has thirteen individual channels
for heating: one for the tank, six for the hoses, and six for the guns,
l The five-hose, Model 2305 applicator has eleven individual channels
for heating: one for the tank, five for the hoses, and five for the guns.
l The Model 2304 has nine separate temperature controls: one for the
tank, four for the hoses, and four for the guns.
l The Model 2302 has five individual channels for heating: one for the
tank, two for the hoses, and two for the guns.
Each channel has a separate dial potentiometer on the control panel
and a yellow light emitting diode (LED) on the indicator panel (see
Figure 2.4). The yellow LED acts as a load light: it glows continuously
when the temperature is below the control sensor temperature, flashes
when the controller is maintaining the sensor temperature within 2.7”F
(1.5”C), and remains off when the temperature exceeds the sensor
temperature by approximately 2.7”F (1.5”C). Actual tank, hose, and gun
temperatures can be determined within 10°F (6°C) at any time by
rotating the temperature control knob until the yellow LED begins to
flash. The dial reading at this point corresponds to the temperature in
the wall of the tank, hose, or gun.
PIN 106 701A
41-23OOSP - Issued 1194
0 Nordson Corporation 1994
All Rights ReSeNed
To Next Page
Loading...
