Eriez 1250 ANALOG, Инструкции по установке, эксплуатации и обслуживанию

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A. STATUS INDICATORS
In order to facilitate troubleshooting of the Detector,
a number of self-test circuits have been designed
to monitor the condition of the detection circuitry.
The results of these test circuits are visible to the
operator through L.E.D.’s on the front panel of the
Electronic Module (refer to Figure 2). These L.E.D.’s
are referred to as Status Indicators. For a descrip-
tion of what each L.E.D. monitors and their normal
operating condition, refer to the Status Indicator
Summary (Table 7) on the next page.
B. TROUBLEShOOTING fLOw
DIAGRAMS
NOTE: Before working with Troubleshooting Dia-
grams, check all terminals, connectors and cables
for open circuits and correct as required.
To aid in troubleshooting the Detector, two easy to
follow, step-by-step, flow diagrams were designed.
Troubleshooting Flow Diagram #1 deals with insuf-
ficient metal sensitivity. This diagram is used if the
unit detects metal, but is not sensitive enough for
the required application or if the Detector does not
respond to metal at all.
Refer to Troubleshooting Flow Diagram #2, if the
unit continually false trips (triggers with no metal in
the field).
part v - Troubleshooting
C. ELECTRONIC MODULE
TROUBLEShOOTING
In the event that the unit does not operate and the
trouble has been traced to the Electronic Module,
further troubleshooting of the Module is possible
using the test points provided on the circuit board.
Monitoring these point requires a VOM, oscilloscope
and frequency counter. If this equipment is avail-
able, schematics can be obtained from the factory.
MAINTENANCE kIT
Prior to shipment, a maintenance kit is packed in
the Main Control Enclosure. This kit contains all
parts necessary for basic maintenance The items
included are as follows:
(1) 1 Amp Fuse