BEHA Unitest 2005, Instruction Manual

Page: 25 / 68

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