The number and type of items employed in the sample loop will determine what,
if any, other routine checks should be made. If, for instance, a filter is used, the
filter element should be inspected periodically and changed when necessary.
The instrument should not require any routine maintenance but if any
malfunction is suspected it is advisable to contact your local dealer.
Should it be necessary, at any time or for whatever reason, to change either the
AcuTrak or AcuDew, it should be noted that the components of the system are
fully and completely interchangeable provided that the same 4 to 20mA range is
maintained. The only adjustment necessary would be the alarm set points in the
case of the display.
While the sensor should give several years of operation, it is advisable to confirm
the calibration, from time to time, to ensure accurate operation of the system.
Shaw Moisture Meters recommends annual recalibration. In between annual
calibrations, the AcuDew has a standard feature called AutoCal. Section 9 of this
manual describes the AutoCal feature in detail.
7 Wiring the AcuDew and AcuTrak
7.1 AcuTrak Power Supply
See 7.5 rear connections. Connect the power supply cable to the 3 terminals of
connector C4.
7.2 AcuDew Sensor Cable
Connect the AcuDew to connector C1, route the sensor cable to the intended site
of the sensor.
7.3 Alarm Cable
Make the appropriate connections, noting the normally open and normally closed
relay contact positions on connector C3.
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