MA-005 - Minitrans Installation Manual - Rev 4.5
13-Aug-20
Page 66 of 86
M.1.4
Safety considerations
It is important to follow the procedures defined in this document to maintain the
warranty and avoid:
▪
A safety risk during installation, operation and transit.
▪
Impaired functionality, since increased noise to the sensor would invalidate the
readings as noise test results are logged for every measurement.
The primary earth must be installed
. Since the silicone isolators of the
cradle lock (see Appendix M.3) provide a degree of electrical isolation from
Ground, this highlights the importance of installing the primary earth (see
Section 9).
Ensure that when accessing the interior of the enclosure that the mains
electrical supply is isolated before the enclosure door is opened. Follow the
site lock out-tag out (LOTO) procedure.
Note: the product may have more
than one electrical supply.
M.2
PGA Lock
The product is equipped with a factory-fitted interior PGA transit lock that consists of
two metal locking brackets each secured by two bolts. The PGA lock is engaged for
shipping and one is shown in Figure M-2. The PGA transit lock
must
be removed as
outlined in Appendix M.2.2 prior to powering on the product to take measurements.
When not in transit, it is recommended to store the lock in the position as shown in
Figure M-3.
Figure M-2: PGA lock
–
engaged (one bracket)
Figure M-3: PGA lock
–
disengaged (two brackets)
If there is ever a requirement to transport the product (or if the product is ever to be laid
horizontally), this lock
must
be refitted as outlined in Appendix M.2.3.
M.2.1
Required tools
The following tools and fittings as listed in Table M-1 and as shown in Figure M-4
compose the PGA lock and are required to attach/remove it.
Table M-1: PGA lock tools & fittings
Item No.
Description
Qty
Flathead screwdriver
4 mm Allen key
21-0598
Mini PGA locks
2
M5 × 30 bolt
4
M5 rib lock washers
4
Figure M-4: PGA lock tools & fittings