GSE Scale Systems - 7
Chapter 2 Installation Instructions Technical Reference Manual
Chapter 2
Installation Instructions
This section of the manual outlines the installation of the
Model 574 Counting System. Please take the time to
review these important guidelines and step-by-step
procedures.
2.1 Positioning the Instrument
Table-Top Use
The Model 574 Counting System has been designed with
four adjustable feet for stabilization on bench and table
tops. The non-slip rubber feet prevent scratching and
slipping across the surface when keys are pressed.
Environment Suitability
The standard Model 574 is supplied in a plastic injected
molded enclosure and may not be used in a washdown
environment.
The keypad is made of silicon rubber. It may be cleaned
periodically with a soft damp non-abrasive cloth.
The display window is made from a polycarbonate
material which may scratch due to aggressive cleaning.
Care must be taken to avoid such damage.
2.2 Opening the Instrument
Disassembling the Housing from the Chassis
Refer to the appendix for a listing of GSE part numbers
on all items called out in this section.
1. Remove AC power by unplugging the 574 from the
power outlet socket. Make sure the 574 is
completely disconnected from the power source.
Disconnect any additional umbilical cables from
their source connectors.
2. Lift off the Stainless Steel Top (item# 47) to expose
the top support (item# 42, spider) and the two
support mounting screws (item# 44, 1/4-20 x 1.25).
Loosen and remove both of these screws. Remove
the top support. Refer to figure 4 Model 574
Exploded View Drawing A.
3. Refer to figure 6 Model 574 Exploded View
Drawing B. Remove the circular sample scale cover
(item# 29) by loosening the screw directly beneath
the sample cover under the chassis. This screw is
attached to item# 30. If the sample scale option is
already installed, this screw would have already
been removed and the circular cover plate could be
removed easily by hand. Refer to chapters 22 and
23 for more information on the sample/remote scale
options.
4. Refer to figure 7 Model 574 Exploded View
Drawing C. Remove the plastic housing which is
attached to the chassis by a quantity of 11 screws.
Use a #2 Phillips head screwdriver.
5. Carefully lift the plastic housing from the chassis.
Reassemble the Housing to the Chassis
1. Carefully position the plastic 574 housing over the
chassis. Make sure the edges of the housing
interlock correctly around the edges of the chassis.
Make sure the keypad is aligned properly under the
housing’s keypad opening.
2. Refer to figure 7 Assembly Drawing C. Re-insert
the 11 screws by means of under the chassis and
fasten the plastic housing to the chassis. Use a #2
Phillips head screwdriver.
3. Make sure that all 11 screws are securely tightened
without damaging the unit. This will ensure the best
environmental seal and maximum EMI, RFI and
SECTION - 2.2
IMPORTANT:
The Model 574 Counting System does not include
an on/off switch and therefore must be installed
near a power outlet socket which is easily
accessible, in keeping with UL/CSA approval
requirements.
CAUTION
Any operation which involves opening the 574
should be performed by qualified service
personnel only after disconnecting power!
Hazardous voltage is accessible within the
system.
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