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Machine Guard MG4-REF11 A
SPM Instrument AB
• Box 504 • SE-645 25 Strängnäs • Sweden
Technical data are subject to change without notice.
Tel +46 152 225 00 • Fax +46 152 15075 • [email protected] • www.spminstrument.com
ISO 9001:2000 certified © SPM 2017-09. 71947 B
Automatic adjusting of gain
During normal operation, after changing disc segments, the gain should be adjusted. This will set
the correct measuring range adjusted to the shock level of the machine and the W-point.
Select the SPM channel with the SET key, press ENT to get the programming menus. Move the
cursor with SET to select ADJUST in the menu (A). Press ENT.
Move the cursor to YES with SET (B) and press ENT.
The automatic adjusting of gain is activated (C). When the gain is adjusted the display goes back
to the measuring mode.
The SPM values are relative changes in the strength of the shock pulses generated in a machine
during various stages of its operation. Variations between machines are without significance for
the functioning of the monitor, provided that the measuring range (gain) of each instrument is
properly adjusted to the shock level of the machine. The measuring unit for shock pulses is dBsv.
The normal measuring range is 20 dBsv (10 - 100%). By adjusting the gain the measuring range is
automatically shifted upwards or downwards.
Adjust gain:
SPM channel
Adjust gain
No
Yes
A
B
Select adjust:
SPM channel
Adjusting gain
C
Automatic adjusting of gain:
SPM channel
TLT 18 return
Adjust
Setup
Gain adjustment
Summary of Contents for Machine Guard MG4-REF11A
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