Rice Lake Digi DI-28, Operation Manual

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8.0. MAINTENANCE, CALIBRATION, TEST PROCEDURE & SERVICE
This section contains information and instructions concerning maintenance of the DI-28
weighing indicator.
Preventive maintenance consists of periodically cleaning the external surfaces of the instrument
and should be performed as often as operating conditions warrant.
The calibration procedure is designed to be an aid in maintaining the scale accuracy within
specifications. The calibration procedure may also serve as a performance test procedure.
CAUTION: DO NOT ATTEMPT ANY SERVICE WHILE THE INSTRUMENT IS
CONNECTED TO THE POWER LINES.
8.1. Maintenance Procedures
8.1.1. Exterior Maintenance
The exterior surfaces of the weighing scale can be easily cleaned using soap and
water. However, extreme caution should be used so that there is no possibility of
water penetration into the scale electrical or mechanical sections. A damp cloth or
sponge is suggested. NEVER USE ACETONE, MEK, OR SIMILAR SOLVENTS
ON THE PLASTIC HOUSING AS THEY WILL ETCH THESE SURFACES.
For grease or other difficult spots, a chlorothane or naphtha based cleaner may be
used. Never use any solvents on the front or rear panels.
Accumulations of dust or direct particles between the pins of the connectors may be
removed by using dry forced air or a small dry brush.
8.1.2. Internal Maintenance
Internal maintenance is not normally required and if it is, should not be attempted
except by a qualified, authorized service technician.
8.1.3. Calibration
The following procedure should be followed periodically (every six to twelve months
is suggested) to determine that the scale is functioning in all modes.
a. Electrical
Follow section 4.0 through all its steps
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