Incompatible Key Selections; Status Indicators - Fluke 52120A-C User Manual

Transconductance amplifier
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Incompatible Key Selections

There are some key sets and conditions that are mutually exclusive. If the 120 A range is
set and you push K, the LED in H flashes green to show your choice is incompatible
and the H key is compatible. If the low current terminals are set and you push D, the
LEDs in the B and C keys flashes green. The 2 A and 20 A ranges are compatible
with the low current terminals while the 120 A range is not.

Status Indicators

As shown in Figure 2-3, the Product has eight status indicators. Table 2-4 is a list of these
indicators and their description.
MASTER UNIT
SLAVE UNIT
REMOTE
Indicator
MASTER UNIT
SLAVE UNIT
REMOTE
L1, L2, L3, N phase
OVER TEMP (red)
OVER TEMP (amber) A Product connected to this Product has had an OVER TEMP condition
STATUS
L1 PHASE
L2 PHASE
OVER TEMP
Figure 2-3. Status Indicators
Table 2-4. Status Indicators
No other Product or the Control Input of a second Product is connected to
the control output of this Product. This Product is the master and controls
other Products as slaves.
This Control Input of this Product is connected to the Control Output of a
second Product. This Product is a slave to a master Product.
Control of this Product is through the IEEE interface on the rear panel.
When connected to a 6100B/6105A, one of these indicators shows which
phase this Product is connected to.
Internal temperature sensors caused the Product to go to the standby
mode. Where multiple Products are connected as Master/Slave, the
OVER TEMP indicators of those Products that are not over temperature
will show amber. You must turn the Product off and on to clear this status.
and caused this Product to go to the standby mode.
Front-Panel Operation
L3 PHASE
N PHASE
Description
2
Notes on Product Use
gpp014.eps
2-9

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