ZAL 120/124
|
4
EN
DE
ES
PT
IT
PL
RU
Checking and adjusting of the line-
of-sight
I
4. Checking and adjusting of the line-of-sight
With the circular bubble centred and
adjusted, the line of sight should be hori-
zontal.
Checking (see example):
1. Choose a distance of appr. 30 m
within a gentle terrain.
2. Set up a staff at both final points (A, B).
3. Set up the instrument at point I
1
(halfway between A and B, just pass it
down) and centre the bubble.
4. Read both staffs.
reading on A = 1.832 m
reading on B = 1.616 m
∆
H = A - B = 0.216 m
5. Set up the level about 1 m from staff A
6. Read staff A (eg.: 1.604 m)
7. Find nominal reading B; eg.: Reading
A -
∆
H = 1.604 m - 0.216 m = 1.388 m
8. Read staff B, compare nominal-/
actual- reading.
)
When the difference nominal-/
actual- reading is more than 3 mm
the line of sight must be adjusted.
1. Turn the adjusting srew until the
middle hair gives the required reading
(eg. 1.388 m).
2. Check line of sight again.
)
Before starting field work or after
long periods of storage/transport of
your equipment check the field
adjustment parameters specified in
this User Manual.
d
d
A
B
∆
H
H=1.832
H=1.616
δ
δ
I
1
A
B
∆
H
δ
I
2
actual = 1.604
nominal
= 1.388
Summary of Contents for ZAL 120 series
Page 1: ...User manual Version 2 0 GeoMax ZAL 120 124 Series...
Page 2: ......
Page 88: ...ZAL 120 124 1 EN DE ES PT IT PL RU I 6 GeoMax ____________ ____________...
Page 89: ...EN DE ES PT IT PL RU ZAL 120 124 2 1 ZAL 120 124 2 a b c d e f g h i j d c f e g h b a b i j...
Page 90: ...ZAL 120 124 3 EN DE ES PT IT PL RU I 3 2 670 2 502 L 0 168 d 16 8 d 100 x L 1 0 2 3 Hz 60 A B...
Page 92: ...ZAL 120 124 5 EN DE ES PT IT PL RU I 5 5 1 GeoMax 5 2 7 5 3...
Page 93: ...EN DE ES PT IT PL RU ZAL 120 124 6 40 C 104 F 6 6 1 6 2 GeoMax...
Page 95: ...EN DE ES PT IT PL RU ZAL 120 124 8 6 5...
Page 96: ...ZAL 120 124 9 EN DE ES PT IT PL RU I GeoMax...
Page 97: ...EN DE ES PT IT PL RU ZAL 120 124 10 GeoMax GeoMax GeoMax GeoMax...
Page 98: ...ZAL 120 124 11 EN DE ES PT IT PL RU I...
Page 100: ...ZAL 120 124 13 EN DE ES PT IT PL RU I GeoMax GeoMax 6 7 FCC B 15 FCC...
