MTR221/A - MTR221/A DHHS
MANUALE ISTRUZIONI / INSTRUCTION MANUAL
Modello/Model R221/A - R221/A DHHS
O
PERATION
I
NSTRUCTIONS
18
R22
1/A
- R221
/A DHHS -
Ope
ra
tion Instru
ctio
ns
Ralco
srl
Tape Measure
The table provides the readout of the numbers which must be set with the knobs. The exact
number to be set is obtained by crossing the SID in use (the value indicated by vertical
arrow), with the Cassette size value in cm or inches (horizontal arrow).If necessary see
Chapter-
A
DJUSTMENTS
.
SID in Use
Format Required
Knob Index
Setting
Use of the retractable tape measure in collimators with this feature:
The type of tape measure used is a standard tape mounted on a radiological
unit. The tape starts with values that correspond to the focus/collimator lower
edge distance; maximum radiological measurement with the tape is 2 m max
even though, for purely mechanical reasons, maximum tape extension is 3 m
max. STOP is evident immediately after the maximum mechanical value.
Forcing and/or extending the tape beyond this point will cause the following
inconveniences:
•
Breakage of the tape or,
•
Distortion of the tape or,
•
Impossibility of retracting the tape into its lodging because the grip of the
spring has been forced and hook-up is consequently distorted.
NOTE: DO NOT EXTEND THE TAPE BEYOND THE INDICATION OF STOP.
Summary of Contents for MTR 221/A
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