Ametek Land 4500 MKIII, User Manual

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B - 9
Model 4500 MkIII Opacity and Dust Monitor
User Guide
Note
If any of the settings are changed from their default values, the new
values should be noted on the Calibration Report and Settings List
supplied with the instrument.
B4.5 Setup Calibration Check Interval
1) From the instrument reading display,
press
2) Unlock is displayed, press
3) Use the and arrows until the Supervisor code (Default: 10) is
displayed, wait for the icon to appear and press
4) Use the and arrows to select Settings and press
5) Use the and arrows to select Cal Check Interval and press
6) Use the and arrows to change Cal Check Interval (in hours), wait
for the icon to appear and press
7) Press to return to Settings
Note: Auxiliary Functions Unit (AFU)
If an AFU is fitted, the Transceiver outputs are not used, and there is no
need to perform the settings described in sections 6, 7 and 8 below. AFU
output setting instructions are given in sections 10, 11 and 12.
B4.6 Setup 4-20 mA Current Loop Output
The Model 4500 MkIII normally provides the power supply for the 4-20 mA
current loop output. It is intended to be connected to a passive input device.
To connect the 4-20 mA current loop output to an active device, option links
inside the Transceiver must be changed. Switch off the power. Remove the
rear cover from the Transceiver (see section E3) and locate Link 1 and Link 2
on the Main printed circuit board.
The Model 4500 MkIII is shipped set for Active output with the Links in the
following positions:
Link 1:
A
Link 2: B
For Passive output, set the Links in the following positions:
Link 1: B
Link 2: A