Fluke 175 Calibration Information Manual
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Fluke 175 Calibration Information Manual

True rms multimeters
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Introduction
To avoid electric shock or injury, do not perform the performance tests or
calibration adjustment procedures unless qualified to do so.
The information provided in this document is for the use of qualified personnel
only.
The 175, 177, & 179 Calibration Information provides the information necessary to adjust and verify the
performance of the Fluke Models 175, 177, and 179 True RMS Multimeters (hereafter known as the
Meter).
The following information is included in this document:
Safety Information and International Electrical Symbols (page 2)
Test Lead Alert (page 3)
Specifications (pages 4-6)
Testing and Replacing the Fuses (pages 7-8)
Replacing the Battery (page 8)
Cleaning (page 9)
Replacing the LCD (page 9-10)
Performance Tests (pages 10-15)
Calibration Adjustment (pages 15-18)
User-Replaceable Parts and Accessories (pages 19-20)
Complete Warranty (page 21)
See the 175, 177, & 179 Users Manual for complete operating instructions.

Service Information

To contact Fluke, call one of the following telephone numbers:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: +31 402-675-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's Web site at www.fluke.com.
To register your product, visit
1600476
PN
March 2001 Rev.4, 8/06
© 2001-2006 Fluke Corporation. All rights reserved. Printed in U.S.A.
XWWarning
register.fluke.com
175, 177, & 179
True RMS Multimeters

Calibration Information

®
1

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  • Page 1: Calibration Information

    The 175, 177, & 179 Calibration Information provides the information necessary to adjust and verify the performance of the Fluke Models 175, 177, and 179 True RMS Multimeters (hereafter known as the Meter). The following information is included in this document:...

  • Page 2: Safety Information

    175, 177, & 179 Calibration Information Safety Information "Warning" and "Caution" Statements A “XW Warning" identifies hazardous conditions and actions that could cause bodily harm or death. A "W Caution" identifies conditions and actions that could damage the Meter, the equipment under test, or cause permanent loss of data.

  • Page 3: Test Lead Alert

    True RMS Multimeters International Electrical Symbols International Electrical Symbols The following international symbols appear in this document and on the Meter. AC (Alternating Current) Earth ground DC (Direct Current) Fuse AC or DC Conforms to European Union directives Risk of danger. Important Information. Conforms to relevant Canadian Standards Refer to the manual.

  • Page 4: Specifications

    175, 177, & 179 Calibration Information Specifications Accuracy is specified for 1 year after calibration, at operating temperatures of 18 C to 28 C, with relative humidity at 0 % to 95 %. Accuracy specifications take the form of: ( [ % of Reading ] + [ Counts ] ). AC conversions are ac-coupled, true rms responding.
  • Page 5 True RMS Multimeters Specifications Accuracy ± ( [ % of Reading ] + [ Counts ] ) Function Range Resolution Model 175 Model 177 Model 179 AC Volts 600.0 mV 0.1 mV 1.0 % + 3 1.0 % + 3 1.0 % + 3 6.000 V 0.001 V...

  • Page 6: Model

    175, 177, & 179 Calibration Information Accuracy ± ( [ % of Reading ] + [ Counts ] ) Function Range Resolution Model 175 Model 177 Model 179 DC Amps 60.00 mA 0.01 mA 400.0 mA 0.1 mA 1.0 % + 3 1.0 % + 3 1.0 % + 3 6.000 A...

  • Page 7: Testing The Fuses

    True RMS Multimeters Testing the Fuses Testing the Fuses XWWarning To avoid electrical shock or personal injury: Remove the test leads and any input signals before replacing the battery or fuses. To avoid electrical shock, arc blast, or damage to the Meter, install only fuses with the amperage, interrupt, voltage, and speed ratings specified in Table 5.

  • Page 8: Replacing The Battery

    175, 177, & 179 Calibration Information Replacing the Fuses XWWarning To avoid electrical shock, arc blast, or damage to the Meter, install only fuses with the amperage, interrupt, voltage, and speed ratings specified in Table 5. To replace the Fuses (refer to Figure 2): 1.

  • Page 9: Cleaning

    True RMS Multimeters Cleaning Cleaning XWWarning To avoid electrical shock: Remove test leads and any input signals before cleaning. Do not reinstall the pca until it is completely dry. Dirt or moisture in the terminals can affect readings. W Caution To avoid damaging the Meter, do not use aromatic hydrocarbons or chlorinated solvents for cleaning.

  • Page 10: Performance Tests

    175, 177, & 179 Calibration Information LCD Mask aik15f.eps Figure 3. Removing the LCD Mask Performance Tests XWWarning To avoid electric shock, do not perform the performance test procedures unless the Meter is fully assembled. The following performance tests verify the complete operation of the Meter and check the accuracy of each Meter function against its specifications.
  • Page 11 True RMS Multimeters Performance Tests Required Equipment A Fluke 5500A Multi-Product Calibrator (or equivalent) is required for the performance test procedures in this document. If an equivalent calibrator is used, it must meet the accuracy specifications shown in Table 1.
  • Page 12 175, 177, & 179 Calibration Information Performance Tests Note When calibrating or measuring AC current, avoid the potential for errors from coupled noise, by either: 1. Shorting the VeG to the COM input 2. Having NO connection to the VeG input. 1.
  • Page 13 True RMS Multimeters Performance Tests Table 2. Performance Tests 175 (continued) Meter Response Test (Switch Position) 5500 Output Lower Limit Upper Limit 4.990 V dc 5.010 V dc DC Volts 300 V 299.3 V dc 300.7 V dc 1000 V 996 V dc 1004 V dc 1000 V...
  • Page 14 175, 177, & 179 Calibration Information Table 3. Performance Tests 177/179 Meter Response Test 5500 Output Lower Limit Upper Limit 300 mV 45 Hz 296.7 mV ac 303.3 mV ac 5 V 500 Hz 4.947 V ac 5.053 V ac AC Volts 5 V 1 kHz 4.897 V ac...

  • Page 15: Calibration Adjustment

    True RMS Multimeters Calibration Adjustment Table 3. Performance Tests 177/179 (continued) Meter Response Test 5500 Output Lower Limit Upper Limit 3 mA 45 Hz 2.92 mA ac 3.08 mA ac AC Milliamps 50 mA 1 kHz 49.22 mA ac 50.78 mA ac 400 mA 1 kHz 393.7 mA ac 406.3 mA ac...
  • Page 16 175, 177, & 179 Calibration Information 2. With a small probe, break the Calibration Seal and press the Calibration Button for 1 second. The Meter will beep and change to the calibration mode. The display reads C-01, designating the first calibration step.
  • Page 17 True RMS Multimeters Calibration Adjustment Table 4. Calibration Steps If the Meter has a serial number of 84060000 or below, use the following steps. Function (Switch Position) Calibration Step Input Value C-01 6.000 V, 900.0 Hz (AC Volts) 600.0 mV, 100 Hz C-02 C-03 6.000 V, 100 Hz...
  • Page 18 175, 177, & 179 Calibration Information Table 4. Calibration Steps (continued) If the Meter has a serial number between 83911001 – 83911240 or 84060001 and above, or if the model number flashes on the display at turn on, use the following steps.* Function (Switch Position) Calibration Step...

  • Page 19: User-Replaceable Parts And Accessories

    Battery Compartment Door 1564799 Case Screws 832246 Tilt Stand 648961 LCD Elastomeric Connector 650264 Internal Cover 1564786 * WTo avoid shock, injury, or damage to the meter, use exact replacement only. ** Fluke accessories are available from your authorized Fluke distributor.

  • Page 20: User-Replaceable Parts And Accessories

    175, 177, & 179 Calibration Information aik16f.eps Figure 5. User-Replaceable Parts and Accessories...
  • Page 21 Lifetime Limited Warranty Each Fluke 20, 70, 80, 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime. As used herein, “lifetime” is defined as seven years after Fluke discontinues manufacturing the product, but the warranty period shall be at least ten years from the date of purchase.
  • Page 22 175, 177, & 179 Calibration Information...

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