Machine Guard MG4-REF11 A
9
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
Programmed measuring parameters
The measuring and alarm parameters of an MG4-REF11A are programmed, using the keys on the
front panel. The program is password protected, which means that a the password ‘SPM’ has to
be input before any parameter can be changed.
Programmed parameters are:
• Measuring time 1 to 15 seconds (VIB only)
• Two alarm limits per channel
• Alarm delay 0 to 600 seconds
• Link between the measuring channel and analog output channels
• Working point can be set 20 to 60%
• Link between an alarm limit and one of the relays. Several different alarms
can be linked with the same relay.
The length measuring unit can be set to either mm or inch under SETUP on the VERSION menu.
There you can also set TLT to OFF. TLT is the transducer line test. For the VIB channel, this test
checks for interruption or short circuit in the cable between vibration transducer and MG4-REF11A,
or in the transducer itself.
For the SPM channel, the test checks the characteristics of the whole measuring circuit and returns
a TLT number which should be larger or equal to 15. On TLT fault, the analog output normally
goes to approx. 0 mA. Setting TLT to OFF prevents the analog output from dropping below 4 mA.
Yellow system alarm will not be shown, but the relay, if linked, will still react to the system alarm.
Programmed measuring parameters:
• Measuring time (VIB only)
• Two alarm limits per channel, max and min
• Alarm delay 0 to 600 seconds
• Measuring channel’s link to analog output
• Working point 20 to 60%
• Alarm limit, link to relay
Select channel
Start programming
Save and exit
Set parameters
REF11A
VIB 1.5 mm/s
SPM 40 %
Summary of Contents for Machine Guard MG4-REF11A
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