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Fluke 287 Calibration Manual

True-rms digital multimeters
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True-rms Digital Multimeters
Calibration Manual
February 2008
© 2008 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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  Summary of Contents for Fluke 287

  • Page 1 287/289 True-rms Digital Multimeters Calibration Manual February 2008 © 2008 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 Lifetime Limited Warranty Each Fluke 20, 70, 80, 170, 180 and 280 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 3: Table Of Contents

    Table of Contents Title Page Introduction......................1 Contacting Fluke....................1 Precautions and Safety Information..............2 International Symbols ..................2 Safety Information ..................... 2 Hazardous Voltage..................... 4 General Specifications ..................5 Detailed Specifications ..................5 AC Voltage Specifications ................6 AC Current Specifications................6 DC Voltage Specification................
  • Page 4 287/289 Calibration Manual Keypad Test....................15 LCD Test ....................... 15 IR Port Verification ..................16 Temperature Accuracy Test................16 Accuracy Tests for Volts, Current, , E, and G Test Functions ....17 Calibration Adjustment..................20 Operation ....................... 21 Entering the Password ................... 21 Changing the Password .................
  • Page 5 Title Page Symbols........................2 Required Equipment....................10 Temperature Test Input and Display ..............17 287/289 Performance Test Steps................17 Calibration Entry Soft Keys ................... 21 Softkey Functions during Calibration ..............23 Calibration Adjustments Steps ................24 Replacement Parts ....................27...
  • Page 6 287/289 Calibration Manual...
  • Page 7 List of Figures Figure Title Page Testing the Current Fuses..................13 Battery and Fuse Replacement................14 PCA Component Location ..................22 Calibration Adjustment Screenshot................ 22 Replacement Parts ....................28...
  • Page 8 287/289 Calibration Manual...
  • Page 9: Introduction

    Follow the standard practices for handling static sensitive devices. The information in this manual deals with the Fluke Models 287 & 289 True-rms Digital Multimeters, (hereafter referred to as “the Meter”). Information provided includes: Precautions and safety information...
  • Page 10: Precautions And Safety Information

    Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. Safety Information The Meter complies with:...
  • Page 11 True-rms Digital Multimeters Safety Information ANSI/ISA 82.02.01 (61010-1) 2004 UL 61010B (2003) CAN/CSA-C22.2 No. 61010-1-04 IEC/EN 61010-1 2 Edition Pollution Degree 2 EMC EN 61326-1 Measurement Category III, 1000V, Pollution Degree 2 Measurement Category IV, 600 V, Pollution Degree 2 XWWarning To avoid possible electric shock or personal injury, follow these guidelines:...
  • Page 12: Hazardous Voltage

    287/289 Calibration Manual Do not use the Meter if it operates abnormally. Protection may be impaired. When in doubt, have the Meter serviced. Do not operate the Meter around explosive gas, vapor, or dust. Use only 1.5 V AA batteries, properly installed in the Meter case, to power the Meter.
  • Page 13: General Specifications

    General Specifications Maximum voltage between any Terminal and Earth Ground: 1000 V W Fuse Protection for mA or A inputs..... 0.44 A (44/100 A, 440 mA), 1000 V FAST Fuse, Fluke specified part only W Fuse Protection for A input ......11 A, 1000 V FAST Fuse, Fluke specified part only Battery Type ............
  • Page 14: Ac Voltage Specifications

    287/289 Calibration Manual AC Voltage Specifications Accuracy Function Range Resolution 65 Hz to 10 20 to 45 Hz 45 to 65 Hz 10 to 20 kHz 20 to 100 kHz AC mV 50 mV 0.001 mV 1.5 % + 60 0.3 % + 25...
  • Page 15: Dc Voltage Specification

    True-rms Digital Multimeters Detailed Specifications DC Voltage Specification Accuracy AC over DC, DC over AC, AC + DC Function Range Resolution 45 Hz to 20 to 45 Hz 1 to 20 kHz 20 to 35 kHz 1 kHz DC mV 50 mV 0.001 mV 0.05 % + 20...
  • Page 16: Temperature Specifications

    287/289 Calibration Manual Temperature Specifications [1,2] Temperature Resolution Accuracy 1 % + 10 -200 C to +1350 C 0.1 C 1 % + 18 -328 F to +2462 F 0.1 F Does not include error of the thermocouple probe. Accuracy specification assumes ambient temperature stable to ±1 C. For ambient temperature changes of ±5 C, rated accuracy applies after 2 hours.
  • Page 17: Frequency Counter Sensitivity

    True-rms Digital Multimeters Detailed Specifications Frequency Counter Sensitivity Approximate Voltage Sensitivity Approximate DC (rms sine wave) Input Range AC Bandwidth DC Bandwidth Trigger Levels 15 Hz to 100 kHz 50 mV 5 mV 1 MHz 5 mV & 20 mV 600 kHz 500 mV 25 mV...
  • Page 18: Burden Voltage (A, Ma, A)

    Capacitance Range: 5 nF Accuracy: +/-0.55% Temperature Range: 0 to 1000 C Accuracy: 0.2% Thermocouple Adapter K-type Fluke 80AK Accessory K-type Thermocouple wire K-type, mini-plug on both ends Serial Cable, Infrared Cable, Adapter, Fluke-Custom IRDA Optical to USB,2M Fluke P/N 2166275...
  • Page 19: Basic Maintenance

    True-rms Digital Multimeters Basic Maintenance Basic Maintenance XW Warning To avoid electrical shock or personal injury, remove the test leads and any input signals before opening the case or replacing the battery or fuses. To prevent damage or injury, install ONLY batteries or fuses specified for this product. Opening the Meter Case W Caution To avoid unintended circuit shorting, always place the...
  • Page 20: Reassembling The Meter Case

    287/289 Calibration Manual Reassembling the Meter Case To reassemble the Meter case, do the following: 1. Verify the rotary switch knob is in the N position (arrow on the rotary switch detent points straight up to the LCD). 2. Install the display bezel, LCD, and top shield into the top case.
  • Page 21: Replacing Fuses

    3. Remove either fuse by gently prying one end loose, then lifting the fuse out of the fuse contacts. 4. Install only Fluke specified replacement fuses with the amperage, voltage, and interrupt ratings shown in the replacement parts list (see Table 8).
  • Page 22: Cleaning

    To perform the tests you will need a Fluke 5520A Calibrator or equipment meeting the minimum specification given in Table 2. Prior to beginning the accuracy tests, allow for the Meter to stabilize to room temperature.
  • Page 23: Factory Default

    True-rms Digital Multimeters Performance Tests Factory Default Prior to completing the Performance tests Reset the Meter to the factory defaults as follows: 1. Power the Meter on in any function. 2. Press F4 (Setup) and select Reset using arrow keys. 3.
  • Page 24: Ir Port Verification

    Append line feeds to incoming line ends Wrap lines that exceed terminal width 9. Enter the identification command <ID> followed by carriage return (Enter) 10. The Meter should return the response: FLUKE 289, VX.XX, X, indicating the model, software version, and serial number. Note...
  • Page 25: Accuracy Tests For Volts, Current, , E, And G Test Functions

    6. If the display reading falls outside of the Display Reading Limits shown in Table 4, the Meter does not meet specification and requires adjustment or repair. 7. Complete the remaining test steps for each function listed in Table 4. Table 4. 287/289 Performance Test Steps Display Reading Frequency...
  • Page 26 287/289 Calibration Manual Table 4. 287/289 Performance Test Steps (cont.) Display Reading Frequency Step Function Range Input Level Lower Upper or Model Limit Limit DC mV 50.000 mV 50 mV 49.955 50.045 Discontinue REL Offsets DC mV 500.00 mV 500 mV 499.85...
  • Page 27 True-rms Digital Multimeters Performance Tests Table 4. 287/289 Performance Test Steps (cont.) Display Reading Frequency Step Function Range Input Level Lower Upper or Model Limit Limit VAC, Lo 500.00 V 50 V 60 Hz 48.60 51.40 Pass (289) VAC, Lo 500.00 V...
  • Page 28: Calibration Adjustment

    287/289 Calibration Manual Table 4. 287/289 Performance Test Steps (cont.) Display Reading Frequency Step Function Range Input Level Lower Upper or Model Limit Limit A DC 5000.0 A 5000 A 4996.0 5004.0 mA AC 50.000 mA 4 mA 20 Hz 3.940...
  • Page 29: Operation

    True-rms Digital Multimeters Calibration Adjustment Operation Calibration adjustment is started by pressing the F1 [Setup] softkey, and then navigating to “Calibration” on the Setup menu. Note Calibration will not be allowed with a low battery condition. When “Calibration” is selected in the Setup menu, the F1-F4 softkeys function as shown in Table 5.
  • Page 30: Adjustment Procedure Operation

    287/289 Calibration Manual 4. Locate the PCA CAL key pad as shown in Figure 3. 5. Short the CAL key pad terminals to reset the password. When the password is reset, the Meter beeps to indicate that the action is complete.
  • Page 31: Softkeys

    True-rms Digital Multimeters Calibration Adjustment screen. 4. Calibration Step progress indicator. 5. Calibration status message. Usually blank, but displays one of the following messages when the given condition occurs: “Calibrating”... is shown while measurements are being made after Next is pressed.
  • Page 32: Power Cycle

    287/289 Calibration Manual If the measurement is not within calibration tolerance then after pressing NEXT an error message will be shown and the calibration step will not proceed. The operator can adjust input signal if needed and attempt NEXT again.
  • Page 33 True-rms Digital Multimeters Calibration Adjustment Table 7. Calibration Adjustments Steps (cont.) Rotary Switch Settling Time Calibrating Time Step Source Value Position (seconds) (seconds) mV AC 0.0 V, 0 Hz 0.0 V, 0 Hz 5.0000 V, 60 Hz 5.0000 V, 65 kHz 50.000 V, 60 Hz 50.000 V, 100 kHz 250.00 V, 60 Hz...
  • Page 34 287/289 Calibration Manual Table 7. Calibration Adjustments Steps (cont.) Rotary Switch Settling Time Calibrating Time Step Source Value Position (seconds) (seconds) Connect the 5520A in a 4-Wire configuration and select COMP 2-Wire Diode Test 0 , zcomp wire2 Diode Test 3.1 V, 0 Hz...
  • Page 35: Parts

    FLUKE-28X-2010,HOUSING, RSOB, LOWER 2578290 MP12 FLUKE-28X-2015,SPRING DETENT 2723772 MP16 FLUKE-28X-8002,KEYPAD 2578234 FUSE, .440A,1000V,FAST,.406X1.375,BULK 943121 FUSE,11A,1000V,FAST.406INX1.5IN,BULK 803293 XBT1 FLUKE-28X-8006,BATTERY CONTACT, POSITIVE, BOTTOM CASE 2578353 XBT2-3 FLUKE-28X-8007,BATTERY CONTACT,NEGATIVE,BOTTOM CASE 2578375 LCD MODULE,289,320X240,FSTN,3.5 MONO 2734828 GRAPHIC,TRANSFLCTV,WHITE LED,0.22MM PITCH H15-18 SCREW,M3X0.5,6MM,PAN,PHILLIPS,STEEL,ZINC-CHROMATE 2743764 SCREW,4-14,.510,PAN,PHILLIPS,STEEL,ZINC-CHROMATE,TYPE BT H7-14...
  • Page 36 287/289 Calibration Manual MP16 MP30 MP12 MP42-44 MP49 XBT1 H15-18 (4x) XBT2-3 H7-14 (8x) MP45 MP46 H1-6 (6x) est34.eps Figure 5. Replacement Parts...

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