Section 2
OM6624CT-3000-5-00
11 May, 2016
2-4
h.
Connect a suitable reference burden or shunt resistance to one of the 6623A-3S
terminals marked '3 A BURDEN' or '150 mA BURDEN'. A shorting link must be
installed across the terminals that are not being used. Normally a 1 ohm or less DC
reference shunt is used that has a known calibrated resistance at the full scale current
of 3 A and 0.15 A.
i.
Connect the input power cord from the 6623A-3S to the AC power outlet.
j.
Turn on the power switch to the 6623A-3S Control Unit. You should see the red
'POWER' indicator on the front panel light up and that the meter indicator moves to
the right or left side initially then returns to the centre line within the graduation
lines of the meter. A small offset is a satisfactory indication that a balance condition
exists on the 6624CT-3000 Transformer Unit.
k.
If it is to be utilized, connect the line cord of the 66259 Extender Control Unit to an
AC power outlet and turn on the unit. Note that the 66259 Operation Manual should
be referenced for proper operation and control of the CS1000 Current Sources. The
66259 Extender Control Unit must be properly configured for the number of
CS1000 units employed.
l.
If it is to be utilized, connect the 'OUT+' buss of the CS1000 units through the
window of the 6624CT-3000 going from left to right looking from the front panel
with suitable heavy current cables. Continue to connect the other end of the cables
across a shunt that is to be measured or to the 'OUT-' buss of the CS1000 units such
that a complete circuit is provided. Where the CS1000 units are not used a separate
current source must be setup to supply a test current through the window of the
6624CT-3000 High Current DC Transformer Unit.
m.
If it is to be utilized, turn on the power switch to the CS1000 Current Source Units.
You should see the red 'POWER' indicator on the front panels light up. The yellow
fault indicators on the CS1000 modules will light 'ON' for about 6 seconds then
remain off.
n.
There should not be any yellow 'Fault' indicators remaining on the connected
CS1000 Current Sources. There is a set of 7 yellow indicators visible within the
front grill which indicate when a fault is experienced in any of the 7 internal 150 A
current source modules. If some of these should remain on, the power can be re-
cycled off and on a number of times to clear the fault.
o.
Up to three CS1000 Current Source Units may be utilized. If more than three units
are available power on only the first three units and leave the others turned off.
Where the CS1000 units are not used a separate current source is required.
p.
The system should now be ready to use as a current source and current measurement
system. The potential on the reference burden will be a direct ratio of the high
current being sourced from the current source depending on the range selection of
the 6624CT-3000 High Current DC Transformer. When set for a range of '1000:1,
Содержание 6624CT-3000
Страница 2: ......
