Raytech USA, Inc. All rights reserved
Ver. 1.13
9
OPERATION INSTRUCTIONS:
8
–
0
WARNINGS!
BEFORE OPERATING TEST EQUIPMENT READ ALL SAFETY WARNINGS.
TR-1 & TR-1P Operating Instructions:
If you are new to transformer turns ratio testing, please review the entire manual carefully before operating this
equipment. If you have any questions please do not hesitate to contact your nearest representative or Raytech USA.
All selections and data input are accomplished through the Front Panel Rotary Digipot.
WARNING: Do not push on the display screen.
Step by step Instructions:
Open the instrument case. Connect the measuring leads to the 9 pin Black front panel connector. This is a Twist -
lock style connector marked "To Test Object". Attach the spade end of the safety ground lead to TR-1 and the clip
side to a good known ground / earth point.
Connect the test lead clips to the proper terminals of a transformer.
Note:
The “H” leads are always connected to the highest number of turn
s on all
transformers and the “X” Leads are
always connected to the lowest number of turns. The TR-1 & TR-1P is a very clever system and will always check
to make sure that this is done correctly.
Note: The Ratiometer will not operate unless connected to a transformer.
The word "GO" will appear when the leads are attached to a transformer. This Ratiometer sense circuit can be
checked by connecting all of the measuring lead clips of the test set all together. The "GO" Will appear in the test
screen. No Ratio test can be performed however.
Turn the system on by pressing the Rotary Digipot down.
Wait for the system to initialize and perform self checks and auto-calibration.
Select the correct Test Voltage:
Turn the Rotary Digipot
and highlight "SETUP”.
Press down on the Digipot. "UTEST" will be high lighted. Select
the proper test voltage by continuously pressing the Digipot down.
The following are the current choices:
40V: For most Potential (Voltage) Transformers. Offers the highest accuracy.
10V: For most Potential (Voltage) Transformers. Increases current output. Offers high accuracy.
5V: For most Transformers. Increases current output. Can be used on some Current transformers. High accuracy.
1V: For Current Transformers. Highest current output. Recommend using on Current transformers.
CT Auto: For Current Transformers only. Automatically detects and selects the highest output power available in
the system. CT AUTO mode is for use with current transformers only. Not to be used with potential transformers.
After selecting the Test Voltage, Exit that menu by highlighting "EXIT" with the Digipot and press down.
If properly connected to a transformer "GO" should appear in the test screen. Highlight and press "GO" and the test
set will test that ratio and automatically store the result in the next available memory location.
You may print the results now or you may recall the saved values from memory and print at a later time.
