00:22Hi, I'm David Kis sales engineer with complete hypert TRS.

00:25Today, I'm back with the 5250 series portable primary cable fault locator to demonstrate how

00:31to operate the unit in advance mode. Before we begin,

00:34we'd like to stress the importance of safety. Please use the appropriate personal protective

00:37equipment when testing with high voltage. Also, please follow the particular safety

00:41guidelines as outlined by your company. If you have not operated the 5250 in basic mode,

00:46I recommend following the link below to our 5250 basic mode demonstration before

00:53initiating any test. Make sure to check your connections to the

00:57ground, high voltage and return leads.

01:04Let's start by powering on the 50 to 50 first. Let's switch the power on.

01:10And next, we'll make sure that the unit is in TDR mode and then we'll open up the TDR case

01:16and then power on the TDR.

01:21Once the TDR is powered on, we can begin operating the unit in advanced mode.

01:26First press advanced mode.

01:30If your 5250 is password protected, enter the password, if not press.

01:34Ok. Next, the TDR will display the advanced mode

01:39menu options from left to right. We have measure memory setup,

01:44adjust configure and basic mode.

01:48Pressing basic mode will take you back to the basic mode menu to start the cable fault

01:54locating sequence. In advanced mode, we want to start by pressing

01:58measure upon pressing measure a new set of options will be displayed upon the bottom of

02:03the TDR. From left to right.

02:05We have sample zoom position, cursors TDR and main menu to get back to

02:12the advanced mode, main menu to start the test. We'll hit sample.

02:17We'll also notice that our TDR is selected as well, meaning it will send a low voltage

02:22impulse through the cable seeking impedance changes and it will display those particular

02:26impedance changes on the screen.

02:31Unlike in basic mode, in advanced mode, you'll have to adjust the cursors such as the N cursor

02:36and the fault cursor manually.

02:39So we'll hit cursor, we will not want to touch the start cursor as we had set up the hookup

02:44point. Previously, we do not want to adjust that.

02:47So we'll hit the button again, adjust the end cursor and throw it out using the red rotary

02:51knob to where the green line, which indicates the low voltage TDR,

02:56where the positive inflection which signifies and open.

03:02And we'll throw that out toward the beginning of that because that will signify the end of

03:05our c the length of our cable run which is displayed on the screen here and under length.

03:12Next, we'll press TDR which will give us a new set of options for the for the cable fault

03:18locating test sequence.

03:20Next is arc reflection.

03:22Arc reflection will send a high voltage impulse through the cable and it will show a red line

03:27on the screen and it will signify where the short is or the cable fault on the particular

03:33cable path. So once we are in arc reflection,

03:38we'll press capture.

03:42Now we can, our high voltage options will be displayed on the screen here,

03:46fire auto fire high pot off and main menu to go back to the,

03:52to the measure sample. At this point, we can adjust our test voltage

03:56either up or down in 500 volt increments.

03:58So we'll test that six KV.

04:01And again, we're in arc reflection. So we want one impulse through the cable,

04:06we'll press fire, the unit will begin charging and then it will discharge once it reaches the

04:11voltage. And as described, we'll see a red line

04:15signifying the high voltage impulse through the cable.

04:18And we'll also notice that there is a negative inflection which will signify a short on the

04:24particular cable path on the CD R.

04:26So we'll hit main menu to go back to our measurement options.

04:31We'll adjust our cursors again. We've already set the start cursor with the

04:37hookup point and we've also set the end cursor when we did the low voltage CD R.

04:43So now we'll set the fault cursor which is signified with a black line and a lightning

04:48bolt. So we'll scroll that out using the red rotary

04:51knob to the beginning of the negative inflection.

04:56That will be approximately where our cable fault is at 125 ft.

05:02The TDR will display the distance from the start of the cable and also from the end of

05:08that particular cable as well.

05:11Other options that you can do in this particular mode,

05:14you can zoom in on the cable in the X which will shrink it down or expand

05:21it. You can also press zoom again which allow you

05:26to zoom in and out in the Y direction and increase the size of the trace.

05:36We can also delete the trace as well by pressing, delete.

05:42You won't want to do that right now.

05:45So we'll go back to a reflection and at this point, we'll begin listening for the fall.

05:51So we hit capture, we can test our s our test voltage, we'll keep it,

05:57we'll go to seven KB this time.

05:59And now to put the unit into cycle mode where it will automatically discharge or charge and

06:05discharge competitively, we'll press auto fire.

06:09Now, the unit will begin charging and discharging.

06:12And at this point, the other member of the troubleshooting team will be listening for the

06:15fault while one user is operating the 5250 unit, the test can be stopped by hitting off

06:24and it can also be restarted again. By hitting auto fire

06:33and we can also manually stop the high voltage by engaging the emergency stop on the unit.

06:43Now, I will give you an overview of some of the basic settings and configurations that can be

06:47made to the 5250.

06:50By pressing configure mode, you can go into the configurations that can be adjusted such as the

06:55time and date length of units, whether it's feet or meters or yards.

06:59The setup mode for when the TDR starts in either basic mode or advanced mode,

07:04the shots per measurement should be one.

07:06The thumper type can be selected as well.

07:10Language would be English.

07:12The remaining configurations do not have to be changed if they do happen to be changed,

07:16they can be reset by pressing defaults which will reload the pre installed factory defaults.

07:22Next are the settings in the setup menu.

07:25First is test type, it's either single phase or three phase.

07:29Next is velocity of propagation which is preset at 250 ft per microseconds and can be

07:35adjusted depending on the type of cable sample rate.

07:38Adjust the speed of capture of the measurement system and should be preset at 100 MHZ.

07:44Pulse width allows the user to select the pulse width to be used on the system for measuring

07:49the fault position. Averaging sets how many data captures are

07:52performed for each trace drawing.

07:54This is normally set to one trigger delay sets, how long the data capture system waits in arc

07:59reflect mode after the Thumper has been fired before starting the data acquisition process

08:04background allows the color scheme used by the system to be set.

08:07It is either black or white.

08:11And then next, we can go to memory where we can store the traces that we did using the

08:18TDR. We can also delete them, move them around,

08:22recall them to pull them up and display them on the screen and scroll through each particular

08:27um trace that has been stored on the TDR to recap, connect the 5250 to the

08:34cable under test. Next, power on capacitive discharge

08:41portion of the unit and power on the TDR, initiate the cable fault pre locating test

08:48sequence by pressing measure.

08:55Begin listening for the thump at the TD R's predetermined distance and finally

09:02power off the 5250 unearth the cable to repair the cable.

09:08Now that concludes the demonstration for how to operate the 5250 in advance mode.

09:13Please visit our website for more videos and to download data sheets or for more information,

09:18please contact, contact us at the number below.

09:21Thank you for watching.