MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved.
Pg 62
DIAGNOSTIC MENU
FORCED OUTPUT SIGNAL
The moisture output signal of the MAC155 Probe can be forced to the
following values:
OUTPUT CURRENT
% of Full Scale Output
4–20mA Output
Range
0–20mA Output
Range
4.0 mA 0 % 20%
8.0 mA 25% 40%
12.0 mA 50% 60%
16.0 mA 75% 80%
20.0 mA 100% 100%
Example using above table; a 15% full scale instrument, 50% of full
scale is 7.5% MBV.
This output signal will be present on the analog output until exiting the
menu and the probe updates the cache with the latest MBV value.
Figure 43 – Forced Analog Output Menu
This provides a simple way to test the MAC155 Probe output circuit, and the
connections to the data indicating and recording equipment.
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