34
MAN0530 Issue 10 - 11/09
Searchline Excel
2104M0506
Fine adjustment is then achieved by means of mounting bracket and pivot block grubscrews
which move levers on the adjustment clamps, fitted to the pivot block and unit studs, and hence
the unit.
After initial mechanical setup the units are powered up and the mechanical alignment can be
optimised and verified electronically by means of the associated Handheld Interrogator linked
to the Receiver.
By entering the operating range of the gas detector the Interrogator then provides reassurance
that the alignment has been performed successfully. The gas detector cannot be put into service
until it is.
The following equipment is used to carry out the alignment and commissioning:
•
Alignment Telescope(s) suitable for the distance between the units (see
Appendix C - Accessories & Spare Parts
).
•
SHC1 Handheld Interrogator (see Appendix C - Spare Parts).
•
Optional SHC Protection Device (see
Appendix C - Accessories & Spare Parts
) -
see Note 8.
•
Appropriate plastic test filters (see
Chapter 5
, section 5.1.2).
•
3mm hex (Allen) key.
•
19mm spanner (with additional 24mm spanner for mid/long range gas detectors).
Notes:
1.
Ideally, carry out the alignment procedure on a clear day.
2.
Get familiar with the workings of the adjustable parts of the gas detector before proceeding
with the alignment procedure, see section
3.7.4.
3.
The alignment telescopes use the same datum used when the unit was aligned in the
factory to ensure precise field alignment.
4.
The telescopes incorporate eye relief adjustment for comfortable viewing.
5.
Keep telescope mirrors and optics clean.
6.
Do
not
try to adjust the cross-hairs using the telescope's elevation and windage adjusters
as they have been factory set.
7.
If a telescope is damaged or misaligned it will need to be returned to the factory for repair
or realignment.
8.
The SHC Protection Device is only required if connecting the SHC1 Handheld Interrogator
via a junction box other than a DVC100(M) MK2 or DX100(M).
3. INSTALLATION AND OPERATION
