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When the TSIT display indicates that a circuit is NORMAL, the test leads may
be moved to another circuit. This permits sequential testing of multiple
circuits without any repeated menu selection.
Earth Fault Summary:
Navigate to “Earth Fault Test” by scrolling with the up/down arrow
keys. Press ENT.
Connect the Red lead and the Green lead, per the instructions on
the Yellow label. Test Results are displayed in real time, and are
updated constantly. If the display indicates “NORMAL”, disconnect
the Red lead.
Connect the Black lead per the Yellow label, leaving the Green lead
connected. If the display indicates “NORMAL”, disconnect the Black
lead.
If the shielded wire is used, connect the Red lead to the shield and
the Green lead to the earth. The display should indicate “NORMAL”.
If there are multiple circuits to test, you may move on to the next one,
repeating the process.
To test an IDNet channel with IDNet Isolators, or TrueAlarm Isolator
Bases, Earth Fault Search must also be run on the IDNet channel.
IDNet
The user should have a list of IDNet devices and addresses when checking
out an IDNet installation. The list can be compared against the devices found
by the TSIT, making some problems easier to diagnose. The TSIT channel
information can be saved in one of the 60 internal memory slots, then
uploaded to a personal computer for easier review. (see the section on PC
Upload.)
To test an IDNet channel with the TSIT, connect as follows:
IDNet+ to Red Lead
. Connect ALL IDNet+ wiring for the channel to
the Red Lead. It is important that the channel be complete when
scanned.
IDNet- to Black Lead
. Connect ALL IDNet- wiring for this channel to
the Black Lead.
Earth to Green Lead
. Connect to building steel or other earth point.
If ZAM or any 24V powered devices are present, be sure to connect the
Auxiliary Power Harness. Clip the red alligator lead to the +24V wiring, the
black to the 0V wiring.
