Performance Of Cable Length Measurements Within The Reference Range; Calibration Of Customer Specific Cable Types - Unitest 3000 Bedienungsanleitung

Switch position assignment:
Switch- Table I (TAB I) Table II
Position
2
1 0.05 mm AWG 28
2
2 0.08 mm AWG 26
2
3 0.12 mm AWG 24
2
4 0.14 mm AWG 22
2
5 0.15 mm AWG 20
2
6 0.25 mm AWG 18
2
7 0.50 mm AWG 17
2
8 0.75 mm AWG 16
2
9 1.00 mm AWG 15
2
10 1.50 mm AWG 14
2
11 2.50 mm AWG 13
2
12 4.00 mm AWG 12
2
13 6.00 mm AWG 10
2
14 10.00 mm AWG 8
2
15 16.00 mm AWG 6
2
16 25.00 mm AWG 4
2
17 35.00 mm AWG 3
2
18 50.00 mm AWG 2
2
19 70.00 mm AWG 1
2
20 95.00 mm AWG 1/0
2
21 120.00 mm AWG 2/0
2
22 150.00 mm AWG 3/0
2
23 185.00 mm AWG 4/0
2
24 240.00 mm MCM 250 127.000 mm
2
25 300.00 mm MCM 300 152.000 mm
2
26 400.00 mm MCM 350 177.000 mm
2
27 500.00 mm MCM 400 203.000 mm
28 0.785* MCM 500 253.000 mm
* This switch position enables cable and conduc-
tor measurement at a desired wire cross sec-
tion:
" Perform the measurement as described in chap-
ter 6.2.
Result:
Cable length = displayed measurement value x (wire
cross section/mm x wire cross section/mm)
6.3 Performance of Cable Length
A/mm 2 To allow measurement of customer specific cable
types reference ranges have been integrated in the
(TAB II)
2
UNITEST Cable Length Meter 3000.
0.080 mm
2
0.128 mm
2 6.3.1 Calibration of Customer Specific Cable
0.205 mm
2
0.324 mm
2
0.519 mm
" Switch on UNITEST Cable Length Meter using
2
0.823 mm
2
1.040 mm
" Change to the reference range pressing
2
1.305 mm
2
1.652 mm
2
2.080 mm
" Perform the temperature compensation for the
2
2.627 mm
2
3.310 mm
2
5.260 mm
" Connect the red test leads to red sockets and the
2
8.370 mm
2
13.300 mm
" Connect both conductor ends using the alliga-
2
21.200 mm
2
26.600 mm
" Set the material (copper / aluminium) of the
2
33.600 mm
2
42.400 mm
2
53.500 mm
2
67.500 mm
" To set the measurement unit (m/ft) press
2
85.000 mm
2
107.000 mm
2
" Set measurement range selection dial to a free
2
2
2
" Set the known length of the cable type to be mea-
2
" Save the reference cable cross section pressing
Note cable type, switch position and reference level.
Performance of Measurements
Measurements within the Reference Range
Types
the key.
key, e.g. reference level 1. REF I is indicated on
the display.
UNITEST Cable Length Meter as described in
section 6.1.
black test leads to black sockets.
tor clamps.
cable or conductor to be measured. ''Cu'' or
''Al'' is indicated on the display, according to
previous selection.
the and keys. ''m'' or ''ft'' is indi-
Shift Shift
cated on the display.
memory location, e.g. switch position 1. 100.0
m is indicated on the display.
sured using the and
and keys. A simple signal sound is
Shift Shift
audible.
keys.
25