 |
|
INSTALLING
THE HIGH/LOW SENSITIVITY RING |
(SEE FIGURE 3)
NOTE - WHEN TESTING
EXTREMELY SMALL MAGNETIC FIELDS SUCH AS SUB-MINIATURE
SOLENOIDS AND RELAYS, THE HIGH SENSITIVITY RING MUST BE USED.
1.) HOLD THE HIGH SENSITIVITY RING BETWEEN THE INDEX FINGER
AND THUMB WITH THE WHITE DOT ON THE RING TOWARD THE PALM OF
YOUR LEFT HAND. |
|
 |
|
2.) SLIDE THE RING ONTO THE TIP TOWARD THE
BODY OF THE MAG-PROBE UNTIL THE RED LED GOES OUT THE FIRST
TIME. (SEE FIGURE NO. 4) |
|
 |
3.) CONTINUE SLIDING THE RING TOWARD THE MAG-PROBE
BODY UNTIL THE LED TURNS ON AND THEN OFF FOR THE SECOND TIME.
(SEE FIGURE 5) NOW THE MAG-PROBE IS ADJUSTED FOR HIGH
SENSITIVITY. TO BE SURE YOU HAVE THE HIGHEST SENSITIVITY
OBTAINABLE. SLIDE THE RING BACK UNTIL THE LIGHT IMMEDIATELY
TURNS ON. THEN WITH THE TIP OF THE INDEX FINGER AND THUMB
PRESSED AGAINST THE RING (FIGURE 3). USE A SLIGHT
PINCHING MOTION TO MOVE THE RING TOWARD THE BODY OF THE MAG-PROBE.
RELEASE IMMEDIATELY AS SOON AS THE LED TURNS OFF. REMEMBER,
FIGURE 5 IS THE CORRECT POSITION.
|
|
 |
NOTE: ANY MOVEMENT OF THE
RING AFTER THE LED GOES OUT WILL DECREASE SENSITIVITY.
CAUTION:
TO AVOID FALSE INDICATIONS WHEN USING THE HIGH SENSITIVITY
RING, THE RING MUST NOT TOUGH A METAL SURFACE, BUT YOU MAY
TOUCH A METAL SURFACE WITH THE MAG-PROBE�S TIP.
REMEMBER:
FIRST TRY YOUR MAG-PROBE WITHOUT THE HIGH SENSITIVITY RING.
THEN IF YOU NEED THE HIGH SENSITIVITY TO DETECT THE DEVICE
UNDER TEST, SLIP ON THE RING.
YOU�LL SEE ONLY A SMALL DIFFERENCE IN SENSITIVITY BETWEEN
THE MODEL �S� AND MODEL �HS� IF YOU DON�T USE THE HIGH/LOW
SENSITIVITY RING.
THE MODEL
�HS� MUST MEET A MINIMUM SENSITIVITY TEST. APPROXIMATELY TWICE
THAT OF THE MODEL �S� WITH THE HIGH/LOW SENSITIVITY RING
ATTACHED.
|
|
 |
|
TESTING AC POWERED DEVICES WITH THE HIGH/LOW
SENSITIVITY RING INSTALLED
|
YOU WON�T HAVE
ANY PROBLEMS TESTING ANY AC POWERED DEVICE REGARDLESS OF WHICH
END OR SIDE YOU TEST JUST AS LONG AS THE FIELD STRENGTH IS
WITHIN THE �MAG-PROBE�S� SENSITIVITY RANGE.
|
|
TESTING DC POWERED DEVICES WITH THE HIGH/LOW
SENSITIVITY RING INSTALLED |
WHEN USING THE HIGH/LOW SENSITIVITY RING, THE �MAG-PROBE� BECOMES
SENSITIVE TO NORTH AND SOUTH POLES. WHITE DOT TOWARD THE
�MAG-PROBE�S� TIP, NORTH AND WHEN THE RING IS REMOVED AND
INSTALLED WITH THE WHITE DOT ON THE RING TOWARDS THE
�MAG-PROBE�S� LED, YOU�LL DETECT ONLY BY SOUTH POLES.
DC POWERED DEVICES CAN BE CONNECTED TO A POWER SOURCE 2 WAYS.
(SEE FIGURE 6A & 6B) |
|
 |
IN FIGURE 6A,
ASSUME THAT A NORTH POLE OCCURS AT THE COIL�S UPPER END WHEN A
DC VOLTAGE IS APPLIED AS SHOWN. IF THE POLARITY OF THE APPLIED
VOLTAGE IS REVERSED AS SHOWN IN FIGURE 6B, A SOUTH POLE IS
GENERATED AT THE UPPER END. TRY BOTH ENDS OF AN OPERATING
SOLENOID, RELAY, REED RELAY, OR DC DEVICE. ONCE YOU ESTABLISH
WHIHC END OF THE RELAY OR DC DEVICE CAUSES THE �MAG-PROBE� TO
OPERATE, THE OTHER RELAYS OR DC DEVICES INSTALLED IN THE
INSTRUMENT UNDER TEST SHOULD RESPOND AT THE SAME END.
SEE FIGURE 7
PHOTO SHOWING TESTS ON BOTH ENDS OF A DC SOLENOID |
|
 |
|
|
SINCE REED RELAYS
ARE DC POWERED, YOU MUST FOLLOW THE ABOVE INSTRUCTIONS FOR
TESTING DC POWERED DEVICES.
IF A REED RELAYS ARE DC POWERED, YOU MUST FOLLOW THE ABOVE
INSTRUCTIONS FOR TESTING DC POWERED DEVICES.
IF A REED RELAY IS MOUNTED IN SUCH A WAY THAT YOU ARE UNABLE
TO REACH THE NORMALLY TESTED END, REVERSE THE HIGH/LOW
SENSITIVITY RING AND TEST THE ACCESSIBLE END (OPPOSITE).
SEE FIGURE 8 |
|
 |
|
 |
