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Fluke 28 II Ex Getting Started

True-rms digital multimeter
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28 II Ex
True-rms Digital Multimeter
Getting Started
PN 3945752
November 2011
© 2011 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
MyFlukeStore
1.877.766.5412
www.
.com
Shop for Fluke products online at:

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  • Page 1 28 II Ex True-rms Digital Multimeter Getting Started PN 3945752 November 2011 © 2011 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice. All product names are trademarks of their respective companies. MyFlukeStore 1.877.766.5412 www.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling.
  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction ........................1 How to Contact Fluke ..................... 1 Safety Information ......................2 EX Safety Information ....................2 Errors and Load Restrictions ..................6 Ex-Certification Data ....................7 Features ......................... 9 Automatic Power-Off ....................15 Input Alert™...
  • Page 4 Diode ........................31 Frequency ......................... 31 Frequency Counter Sensitivity and Trigger Levels ............ 31 Duty Cycle (Vdc and mVdc) ..................32 Input Characteristics ....................32 MIN MAX Recording ....................33 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 5 Inputs ............................ 9 Rotary Switch Positions ......................10 Pushbuttons .......................... 11 Display Features ........................13 Power-Up Options ......................... 16 Approved Batteries ........................ 19 Replacement Parts ........................ 22 Accessories ........................... 24 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 6 28 II Ex Getting Started MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 7 List of Figures Figure Title Page Display Features ........................13 Current Fuse Test ......................... 18 Battery and Fuse Replacement ..................... 20 Replacement Parts ........................ 23 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 8 28 II Ex Getting Started MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 9: Introduction

    • Europe: +31 402-675-200 Product, what the controls do, and Product maintenance. • Japan: +81-3-6714-3114 Refer to the 28 II Ex Users Manual on the Product CD for complete user instructions. • Singapore: +65-738-5655 • Anywhere in the world: +1-425-446-5500...
  • Page 10: Safety Information

    Symbols used on the Product and in this manual are explained in Table 1. To ensure safe operation of the Product, obey all instructions and warnings contained in this manual. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 11 Ex-hazardous areas in this Product. See the “How to Replace the Fuses” section for a list of approved fuses. • Use the Product only when the specified connection values are met. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 12 • See the “EX Safety Information” section for additional warnings on Product use in hazardous areas. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 13 • Do not touch the probes to a voltage source when the test leads are connected to the current terminals. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 14: Errors And Load Restrictions

    Illegible inscriptions or lettering shows on the Product. • A Product malfunction occurs. • Obvious measurement inaccuracies occur. • Measurements/simulations are no longer possible with the Product. • Permitted tolerances or threshold values were exceeded. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 15: Ex-Certification Data

    = 1000 mH L = negligible = 3.4 mW • Approved for use in mines. Device group I, explosion group I, methane, and coal dust. Current – measurement input I = 5 A: MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 16: Symbols

    Inspected and licensed by TÜV Product Conforms to CAN/CSA-C22.2 No. 61010-1 2 ® Æ Services. Amendment 1. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 17: Features

    Input for 0 μA to 400 mA current measurements (600 mA for 18 hrs) and current   frequency and duty cycle. Return terminal for all measurements.  MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 18: Rotary Switch Positions

    0 mA to 10.00 A. AC current measurements from 0 μA to 6000 μA  (yellow) for dc current measurements from 0 μA to 6000 μA. Push MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 19: Pushbuttons

    Product beeps and shows the new measurement. MIN MAX Stops and starts recording. Does not erase recorded values. recording Frequency Stops and starts the frequency counter. counter MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 20 (Relative mode) Push G for frequency measurements. position Push again to go to duty cycle mode. except diode test MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 21: Display Features

     for Hz/duty cycle triggering. The continuity beeper is on.  Low-pass filter mode. See “Low-  pass Filter”. Relative (REL) mode is active.   Smoothing is active.  MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 22 μF, nF microfarad, nanofarad nanosiemens Percent. Used for duty cycle  measurements. Ω, MΩ, kΩ ohm, megohm, kilohm hertz, kilohertz Hz, kHz Diode test mode Alternating current, direct current AC DC MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 23: Automatic Power-Off

    LEAd current terminals of the Product is very low, switch position does not correspond to the terminal and causes a short circuit. being used. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 24: Power-Up Options

    Sets the Product in calibration mode and prompts for a password.  The Product shows “CAL” in the display and enters calibration mode. See 28 II Ex Calibration Information. Turns on the smoothing feature. The Product reads “'---” until C is released.
  • Page 25: Maintenance

    True-rms Digital Multimeter Maintenance It is recommended that the Product be calibrated by Fluke Maintenance in two-year intervals. XWWarning Fuse Test To prevent electrical shock or personal As shown in Figure 2, with the Product in the injury, have the Product repaired by ECOM function, put a test lead into the ...
  • Page 26: How To Replace The Batteries

    Good 11 A fuse: 0.0 Ω to to be replaced at the same time with 0.5 Ω same part number cells in fresh air locations only. Replace fuse: OL grt08.eps Figure 2. Current Fuse Test MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 27: Approved Batteries

    Attach the door with the six Torx-head screws. Note It is recommended the batteries be removed from the Product for long periods of storage. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 28 28 II Ex Getting Started grt10.eps Figure 3. Battery and Fuse Replacement MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 29: How To Replace The Fuses

    Replace the Batteries” section above to replace the battery door. Service and Parts If the Product fails, examine the batteries and fuses. Refer to this manual to make sure the Product is used correctly. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 30: Replacement Parts

    Screw 3861068 Gasket, Battery Door 3439087 28 II Ex Fuse Assembly 4016494 28 II Ex Holster 4013542 28 II Ex Battery Door Assembly 4093984 Alligator Clip, Black AC172 Alligator Clip, Red Test Lead Set TL175 Integrated DMM Temperature Probe 80BK-A...
  • Page 31 Contains 440 mA Fuse Fuse 11 A, 1000 V, Fast 28 II Ex Users Manual CD 28 II Ex 80BK-A Integrated DMM Getting Started Manual Temperature Probe grt11.eps Figure 4. Replacement Parts MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 32: Accessories

    W Temperature Probe All accessories in this table are approved for use in explosive hazardous environments. Fluke accessories are available from an authorized Fluke distributor. W Warning - To prevent personal injury or property damage, do not use this accessory in hazardous areas where dust is moved, transported, or conveyed.
  • Page 33: General Specifications

    Storage ................ -55 °C to +85 °C (without battery) -55 °C to +60 °C (with battery) Temperature coefficient ..........0.05 X (specified accuracy) / °C (<18 °C or >28 °C) MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 34  Certifications ..............CSA, TÜV, P, , GOST, ATEX, IECEx IP Rating ................ 67 (Non-operating. Protected against dust and the effect of immersion up to 1 m for 30 min.) MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 35: Detailed Specifications

    Below 10 % of range, add 12 counts. Frequency range: 1 kHz to 2.5 kHz Specification increases from -1 % to -6 % at 440 Hz when filter is used. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 36: Dc Voltage, Conductance, And Resistance

    Add 0.5 % of reading when measuring above 30 MΩ in the 50 MΩ range, and 20 counts below 33 nS in the 60 nS range. When using the rel function to compensate for offsets. >40 °C temperature coefficient is 0.1 x (specified accuracy)/°C. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 37: Temperature

    W 10 A continuous up to 35 °C. <20 minutes on, 5 minutes off at 35 °C to 55 °C. >10 A to 20 A for 30 seconds maximum, 5 minutes off. >10 A accuracy unspecified. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 38: Dc Current

    0.001 μF 10.00 μF 0.01 μF ±(1.0 % + 2) 100.0 μF 0.1 μF 9999 μF 1 μF With a film capacitor or better, using the rel mode to zero residual. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 39: Diode

    0.7 V 1.7 V 60 V 7 V (≤140 kHz) 600 V 30 V 70 V (≤14.0 kHz) 40 V 1000 V 100 V 100 V 200 V (≤1.4 kHz) MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 40: Duty Cycle (Vdc And Mvdc)

    <1.9 V dc 500 μA 100 μA 10 μA 1 μA 0.4 μA 0.2 μA 1000 V rms <7.0 V dc <1.7 V dc 1000 V rms <7.0 V dc 2.200 V dc 1.0 mA typical MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 41: Min Max Recording

    Specified accuracy ±100 counts for changes >250 μs in duration 250 μs (peak) (add ±100 counts for readings over 6000 counts) (add ±100 counts for readings in Low Pass mode) For 6 V range: 1 ms MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
  • Page 42 28 II Ex Getting Started MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...