Ballantine 3207 Instruction Manual
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Ballantine 3207 Instruction Manual

Digital micro-ohm meter
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INSTRUCTION MANUAL
MODEL
3207
DIGITAL
MICRO-OHM METER
Ballantine Laboratories, Inc.
www.ballantinelabs.com
e-mail: sales@ballantinelabs.com
312 Old Allerton Road, Annandale, New Jersey 07927, USA
Phone: (908) 713-7742, Fax: (9083) 713-7743
9 0- 10 35 3-5
N o v e m b e r 2 0 1 2

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  • Page 1 INSTRUCTION MANUAL MODEL 3207 DIGITAL MICRO-OHM METER Ballantine Laboratories, Inc. www.ballantinelabs.com e-mail: sales@ballantinelabs.com 312 Old Allerton Road, Annandale, New Jersey 07927, USA Phone: (908) 713-7742, Fax: (9083) 713-7743 9 0- 10 35 3-5 N o v e m b e r 2 0 1 2...

  • Page 3: Limited Warranty

    LIMITED WARRANTY Ballantine Laboratories, Inc. warrants its products to be free from defects in material and workmanship. Rigorous quality control permits a standard new equipment warranty on material and workmanship of one year from date of shipment. During the in-warranty period, we will service or, at our option, replace at the factory, any device that fails in normal use to meet its published specifications.
  • Page 5 CERTIFICATION Ballantine Laboratories, Inc. certifies that this equipment meets all applicable Ballantine specifications at time of shipment from the factory as determined by thorough testing and inspection. Ballantine further certifies that its measurements are traceable to the United States National Institute of Standards and Technology. All instruments used in calibrating Ballantine products are standardized by systematic reference to NIST-traceable standards.
  • Page 6 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER...

  • Page 7: Table Of Contents

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER TABLE OF CONTENTS Page No. Unpacking & Initial Inspection SECTION 1 GENERAL INFORMATION Introduction Features Applications Controls , indicators & terminals Optional Accessories OPTIONS SECTION 2 SAFETY INFORMATION Safety Requirements Safety symbols & terms...
  • Page 8 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER Figure 1-1. Model 3207 Digital Micro-Ohmmeter (Shown with optional Kelvin Clips)

  • Page 9: Unpacking & Initial Inspection

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER UNPACKING AND INITIAL INSPECTION Check for following items when you unpack your instrument from the carton 1. INSTRUMENT (MODEL) : MICRO OHMMETER 3207 2. AC MAINS CORD: 3. SPARE FUSES a) 1 Amp : b) 250 mA (or 500 mA for Option –...
  • Page 10 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER...

  • Page 11: Section 1 General Information

    GENERAL INFORMATION 1.1 Introduction The Ballantine Model 3207 is a fully portable digital micro-ohm-meter with a 4½ digit LED display, capable of measuring low resistance with 0.1 micro Ohm resolution. It provides a RS232 COM PORT for computer interface. It employs the proven 4-wire method where a fixed DC current is applied to the DUT and the voltage drop across the DUT is measured and displayed as a proportional resistance reading.
  • Page 12 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER...

  • Page 13: Controls , Indicators & Terminals

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 1.4 Controls, Indicators and Terminals DESCRIPTION FUNCTION FRONT PANEL -Switches ON the instrument when pressed. ON/OFF Switch - Switches OFF the instrument when released. 2,20,200,2000 Tactile switch (soft touch) used to select appropriate range and function.

  • Page 14: Optional Accessories

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 1.5 Optional Accessories Available Test Lead Type Intended Use To measure resistance of copper wires (having big “C” clamp probe assembly diameter), copper bars, copper/ carbon rods etc. with 10 meter long lead...

  • Page 15: Options

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 1.7 OPTIONS The 3207 Micro-Ohm Meter can be ordered with the following options: Ballantine Option Description Part Number Standard Ballantine 3207 Micro-Ohm Meter. Base unit 3207 Operates from AC Mains (115VAC or 220VAC as ordered) Ballantine 3207 Micro-Ohm Meter with Battery Option.
  • Page 16 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER Figure 1.7-1 Ballantine 3207-05 Micro-Ohm Meter with Battery Option...

  • Page 17: Section 2 Safety Information

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 2 SAFETY INFORMATION 2.1 Safety requirements • observe the safety consideration and cautions. Read and understand manual ALWAYS for operational and safety considerations. • Always inspect your Micro ohmmeter, test leads, mains cable and accessories for any sign of damage or abnormality before every use.

  • Page 18: Warning

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER Warning:- • Do not operate this instrument in explosive atmosphere (i.e. in the presence of flammable gases or fumes, vapor dust). • Ensure the proper grounding of Instrument. Caution: • Use the rated fuse to meet the voltage and current requirements given in the specification.

  • Page 19: Section 3 Preparation For Operation

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 3 PREPARATION OF OPERATION. 3.1 Installation: The instrument is fully solid state and dissipates minimum heat and no special cooling is required. However the instrument should not be used where ambient environment is beyond the temperature limits indicated in the specifications.
  • Page 20 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER FIG 3.1...

  • Page 21: Using Test Leads

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 3.4 Using test leads: Use Appropriate test leads for specific application (see Section 1.5). 3.5 Zeroing The Instrument Ensure that the instrument is warmed up for five minutes. Ensure that correct range required for the measurement is selected through switches (e.g.

  • Page 22: Continuous Mode Operation

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 3.7 Continuous Mode Operation In CONT mode, current is continuously supplied to the sample. This mode is recommended for making measurements of inductive loads like: transformer winding, coil winding and motor winding. 3.8 Precautions To Be Taken For Various Types Of Measurement: Fuses: While measuring the resistance of fuses, the test current must be observed otherwise the fuse may blow.
  • Page 23 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER (Electromagnetic Interference). In such cases, take your instrument away from the source of noise by using long leads to get stable readings. Also, due to limited compliance voltage and current, the time required to obtain a steady reading is substantial when making winding resistance measurements of transformers of capacities higher than 8 MVA.

  • Page 24: Section 4 Making Measurements

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 4 MAKING MEASUREMENT 4.1 Making Measurement: - Note: For unknown resistances (Devices Under Test) always start with a higher range selection. Ensure warm up of the Instrument for the specified time. •...
  • Page 25 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER CONNECTION OF RESISTANCE UNDER MEASUREMENT Rx = Res. Under measurement RL = Lead resistance R = Measured value R = Rx Rc = Contact resistance R = Rx...

  • Page 26: Computer Interfacing

    MODEL 3207 MICRO-OHM METER 4.2 COMPUTER INTERFACING. The 3207 Micro ohm meter is equipped with an isolated 3 wire RS232 interface for PC. The interface is available as a 9 pin ‘D’ type female connector located on the rear panel of the instrument.
  • Page 27 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER COMMAND TOKEN ACTION PERFORMED CHARACTER ASCII VALUE in HEX ‘0’ Selects 2mΩ Range ‘1’ Selects 20mΩ Range ‘2’ Selects 200mΩ Range ‘3’ Selects 2000mΩ Range ‘4’ Selects 20Ω Range ‘5’ Selects 200Ω Range ‘6’...

  • Page 28: Section 5 Care And Maintenance

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 5 CARE AND MAINTENANCE 5.1 Care and Maintenance: Your Instrument is a precise electronic device; do not tamper with the circuitry. To prevent electric shock hazard, turn OFF the power and disconnect the probes or connectors from the mains before removing the case, if needed.

  • Page 29: General Maintenance

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER 5.3 General Maintenance: Any Adjustments, Maintenance or repair of the instrument, or Fuse replacement should be done only by qualified service personnel. 1. Use and store your instrument only in normal temperature environments. Extreme temperature can shorten the life of electronic devices and distort or melt plastic parts.

  • Page 30: Section 6 Specifications

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 6 SPECIFICATIONS 6.1 Electrical: Power dissipation DC Current Accuracy Range Resolution FS rdg. in the applied to (Ohm) (Ohm) (Ohm) + (% rdg + dgt) sample at mid-scale 0.1µ +(0.5+5) 1.9999m 1µ...
  • Page 31 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER : 2.5 times / second Display Update Rate digit , Height :-14mm. Reading Display : Ω and mΩ using 2 LED's Indicators : 115V AC / DC Sense terminals and Source terminals Overload Protection Protected by 1Amp Fuse.

  • Page 32: Section 7 Optional Accessories

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER SECTION 7 OPTIONAL ACCESSORIES C CLAMP DEVICE UNDER TEST `I+' `V+' `I-' `V-' TO LR METER 1. C CLAMP ACCESSORIES `V+' `V-' TO LR METER `I+' `I-' 2. HEAVY DUTY BOND TESTING PROD ASSEMBLY...
  • Page 33 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER DEVICE UNDER TEST `V+' `V-' TO LR METER `I+' `I-' 3. TEST LEADS WITH GOLD PLATED ALLIGATOR CLIPS 3. TEST LEAD WITH GOLD PLATED CROCODILE CLIP DEVICE UNDER TEST `V+' `V-' `V+' `V-'...
  • Page 34 BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER ACCESSORY SUPPLIED WITH INSTRUMENT DEVICE UNDER TEST `V+' `V-' TO LR METER `I+' `I-' 5. TEST LEADS WITH GOLD PLATED KELVIN CLIPS 1. TEST LEAD WITH GOLD PLATED KELVIN CLIP...

  • Page 35: Attachment - Calibration Form

    BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER ATTACHMENT - CALIBRATION FORM...

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