Megger TM1700 Series, User Manual

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BL1448GE ZP-BL16E TM1700-sEriEs 45
4 CABA LOCAL
Dynamic resistance
Pressing the button enables/disables dynamic resis-
tance measurements.
Setting the measurement time &
sample interval
1]
In Breaker View, Measurement Preferences
press the “MEASUREMENT TIME & SAMPLE
INTERVAL” button to make the settings. The
following screen appears.
2]
Settings can either be done by pressing the
respective buttons repeatedly or by selecting
the desired value from the drop down lists
using the mouse/trackball
Pre-trig time
This is the time duration the recording starts before
the sequence is initialized.
Preferred measurement time
This is the total recording time including pre-trig time.
Preferred sample interval
Depending on the measuring method the value might
be automatically set (e.g. DrM).
Compression
When you check this box the instrument will use data
compression. This will affect the measuring time and
resolution.
When you set the “Preferred measurement time” and
“Preferred sample interval” the instrument calculates
if compression is necessary. if it is necessary you will
get a message where you are asked if you want to use
compression. if you answers “NO” the test will run
although and data will be recorded until the recording
memory is full.
Motion measurement preferences
menu
1]
In Breaker View/Measurement Preferences
press the “MOTION MEASUREMENT PREFER-
ENCES MENU” button to make the settings.
The following menu appears.
Transducer type
By Pressing the button you select the transducer type
to be used for testing this breaker.
“Absolute” and “Relative”
▪
The buttons are used to toggle between the transducer
modes. if relative is selected you must enter a value for
the “Nominal stroke”.
▪
if “Absolute” is selected you can optionally specify a
“Conversion” of transducer values into main contact
values.
Note If you use an angular transducer and want to
use “Relative (nominal stroke used as refer-
ence)” select “Linear” as “Transducer type”.
Conversion
1]
Press the button whereupon the following
screen appears.