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AEMC SL261 Repair Manual

Ac/dc current probe
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Download this manual See also: User Manual
Ver. 2 09/05
AC/DC CURRENT PROBE
MODEL SL261
REPAIR AND CALIBRATION MANUAL
CATALOG #1201.51
When servicing this instrument, use
only specified replacement parts.

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Summary of Contents for AEMC SL261

  • Page 1 Ver. 2 09/05 AC/DC CURRENT PROBE MODEL SL261 REPAIR AND CALIBRATION MANUAL CATALOG #1201.51 When servicing this instrument, use only specified replacement parts.
  • Page 2 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 MECHANICAL SPECIFICATIONS GENERAL DESCRIPTION The AEMC model SL261 is a portable 100 A peak Operating Temperature Range: current probe with an insulated BNC output cable that 0°C to +50°C (32°F to 122°F) can accurately measure AC or DC current wave Storage Temperature Range: forms.

  • Page 3: Calibration Procedure

    1 Function generator from 50 to 100 KHz To be able to calibrate the SL261 you need to pop out the plastic dot located on the left side of the probe (use sharp tweezers), thus accessing the potentiometer. Connect the different instruments as shown below.
  • Page 4 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 b) With the probe out of the coil adjust the zero adjust knob (R11) to read 0 ± 0.5 mV on the multimeter. c) Set the calibrator to provide 60 mA at 50 Hz in the 100 turns coil, thus producing 6 A turns.
  • Page 5 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 Overload LED verification Use the same setup as done in the calibration. The red LED must be lit when the current measured is greater than the value of the chart below. Measure Range +10 A ±...

  • Page 6: Assembly Parts List

    686613-93A BOARD ASSY. (With Hall effect sensor) 685973-28A “U” CORE ASSEMBLY 685973-28B “I” CORE ASSEMBLY 685451-96A COVER BOTTOM 99-LBL 100174 LABEL SL261 RANGE 99-LBL 100175 LABEL SL261 RATING 99-LBL 100295 LABELSL261 WARNING 99-LDS 100012 LEAD BNC 99-MAN 100042 MANUAL SL261...
  • Page 7 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 VERSION 2: September 21, 2005 FILE LOCATION: Manuals - Service Man. - SL261MAN.DOC 9/21/2005...
  • Page 8 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 Board Layout VERSION 2: September 21, 2005 FILE LOCATION: Manuals - Service Man. - SL261MAN.DOC 9/21/2005...
  • Page 9 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 Schematic VERSION 2: September 21, 2005 FILE LOCATION: Manuals - Service Man. - SL261MAN.DOC 9/21/2005...
  • Page 10 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 MAIN BOARD PARTS LIST Des. Type Value Specification TYPE ID Code Ref # C 01 1 uF 20 % 16 V TANTALUM 524891T30 C 02 100 nF 10 % 50 V CERAMIC...
  • Page 11 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 R0 01 30 kohm 1/4W 200ppm FILM Ep R/-RR1206-30KJ 525077P30 R0 02 8,25 kohm 1/4W 50ppm C.METAL R/-RC37158K25F 525033C37 R0 03 20 ohm 1/4W 50ppm C.METAL R/-RC3715-20KF 525029Q30 R0 04 20 ohm...
  • Page 12 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 R0 33 402 ohm 1/4W 50ppm C.METAL R/-RC3715402UF 525189K30 RT.. RT 01 220 ohm Thermister 525021C30 RT 02 4,7 kohm Thermister Lin 523659N30 S 02 SWITCH SLS 230PC SLIDE SWITCH 3POS 524246-00...
  • Page 13 MODEL SL261 REPAIR AND CALIBRATION MANUAL CAT# 1201.51 Repair and Calibration To ensure that your instrument meets factory specifications, we recommend that it be submitted to our factory Service Center at one-year intervals for recalibration, or as required by other standards or internal procedures.