20 Machine Guard MG4-REF11A
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 • info@spminstrument.se • www.spminstrument.com
ISO 9001:2000 certified © SPM 2017-09. 71947 B
Installation of shock pulse transducers
Transducers and measuring cables should be installed in such a way that they do not hinder the
normal operation or the general activities around the machine. Correct installation is very important
because it influences the strength of the shock signal and thus the measuring results
The shock pulse transducer 42000 is installed in a threaded, countersunk mounting hole. Stand-
ard thread size is M8, with UNC 5/16” as an alternative. Via a coaxial cable with TNC connectors,
45011-L, the transducer is connected to the MG4-REF11A.
Operations
• Selection of measuring point
• Drilling, countersinking, threading and clearing of the mounting hole
• Torquing with torque wrench
• Connection of cable.
Special tools
• Countersink with 90° angle, diameter 12 mm, and pilot 6.8 (6.5) mm
• Drill bits 3.0, and 6.9 (6.6) mm
• Torque wrench with a long 17 mm socket.
Installation material
• Clean grease
• Cable clamps for 5 mm cable
• Self-threading screws M3
• As needed, elastic sealing material for through holes.
45011-L
Mounting hole
min. 15 mm
Space
min. 100 mm
Correct signal Damped signal
42000
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