Configuration - Qualitrol 118 ITM Series Instruction Manual

Intelligent transformer monitor for dry transformers
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Setup Software

5.3. Configuration

User can select "Get Existing Configuration" or "Make New Configuration" to view
configuration or change configuration offline, selecting one of these options will allow you to
open an existing or new file allowing you to make the changes on the 118 ITM Configuration
screen (See Figure 11).You can then download the configuration to an ITM and/or save it to
a configuration file. It is also possible to upload the existing configuration from the ITM to
the Configuration screen. To change the configuration you must connect the ITM to the
computer via a USB cable. The ITM display will show USB.
The configuration software allows the user to set up the following parameters of the ITM:
Active Channels – Any one or two of the three input channels can be turned OFF, if
they are not being used in an application.
Fan / Alarm / Trip / Fourth Relay / Fifth Relay set point and switching differential
(hysteresis) can be set to determine at what temperature the relays turn ON and OFF.
Alarm / Trip / Fourth Relay / Fifth Relay can be set to failsafe (normally energized) or
not failsafe (normally de-energized).
Fan Exerciser – The Fan Exerciser function can be turned ON or OFF. When it is ON,
the time between turning the FANs ON, and the run time can be set.
Analog Output – Can be set to operate from the hottest phase or only the center phase.
The type of analog output can be set to be 0–1 mA, 0–10 mA, 0–20 mA,
4–20 mA or 0–5 V.
Reverse thermocouple sense – This feature can be activated or de-activated. This
allows an inadvertent sensor-wiring problem to be detected quickly. If the
thermocouple is connected incorrectly, as the temperature goes up, the display
temperature goes down. If the reverse thermocouple feature is activated, when the
thermocouple reaches 30°C below the (internal) ambient temperature chip, the unit will
go into "fault" mode. In some instances, a sudden increase in ambient, such as early
morning sun shining on a unit where the transformer is still cold, may cause the same
result. In this case, the reverse thermocouple feature can be de-activated, and the unit
will require a 70°C difference between the thermocouple and ambient to go into "fault"
mode.
The communications parameters for the optional RS-485 output can be set.
Send configuration data to ITM – This will cause the displayed configuration data to be
written to the ITM. After the data is changed in the ITM memory, the ITM will reset to
activate the new values. If you wish to communicate over the USB port again you must
unplug the USB cable and plug it back in
Get configuration data from ITM – This reads the configuration currently in the ITM
and displays that data on the screen.
Save – This saves the current configuration to the current open file (if it is the default file,
it overwrites it).
Save As – Allows the current configuration to be saved to a new file name or different
path.
Exit – Exits this window.
Courtesy of NationalSwitchgear.com
19
www.qualitrolcorp.com

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