8808A Calibration (Eng)(1.72 MB)

8808A Digital Multimeter Calibration Manual October 2008 © 2008 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.

Table of Contents Chapter Title Page 1 Introduction and Specifications......................................................... 1-1 Introduction........................................................................................................ 1-3 Safety Information ............................................................................................. 1-3 Symbols ......................................................................................................... 1-4 General Safety Summary............................................................................... 1-4 Description of IEC 61010 Measurement Categories ......................................... 1-6 Manual Set ......................................................................................................... 1-7 About This Manual ............................................................................................ 1-7 Operating Instructions........................................................................................ 1-8 Accessories ........................................................................................................ 1-8 General Specifications ....................................................................................... 1-9 Voltage .......................................................................................................... 1-9 Dimensions .................................................................................................... 1-9 Display........................................................................................................... 1-9 Environment .................................................................................................. 1-9 Safety............................................................................................................. 1-9 EMC .............................................................................................................. 1-9 Triggering ...................................................................................................... 1-9 Math Functions.............................................................................................. 1-9 Electrical........................................................................................................ 1-9 Remote Interfaces .......................................................................................... 1-10 Warranty ........................................................................................................ 1-10 Electrical Specifications .................................................................................... 1-10 DC Voltage Specifications ............................................................................ 1-10 AC Voltage Specifications ............................................................................ 1-10 Resistance ...................................................................................................... 1-12 DC Current .................................................................................................... 1-12 AC Current .................................................................................................... 1-13 Frequency ...................................................................................................... 1-14 Continuity ...................................................................................................... 1-14 Diode Test ..................................................................................................... 1-14 2 General Maintenance .......................................................................... 2-1 Introduction........................................................................................................ 2-3 i

8808A Calibration Manual General Maintenance Information ..................................................................... 2-3 Required Equipment ...................................................................................... 2-3 Static Safe Handling ...................................................................................... 2-3 Cleaning ............................................................................................................. 2-4 Storing and Shipping the Meter ......................................................................... 2-4 Power Considerations ........................................................................................ 2-4 Selecting the Line Voltage ............................................................................ 2-4 Replacing the Fuses....................................................................................... 2-5 Line-Power Fuse ....................................................................................... 2-5 Current-Input Fuses................................................................................... 2-6 If the Meter Does Not Turn On.......................................................................... 2-7 Display Tests...................................................................................................... 2-7 3 Performance Verification and Calibration......................................... 3-1 Introduction........................................................................................................ 3-3 Required Equipment .......................................................................................... 3-3 Direct Voltage Verification................................................................................ 3-4 Alternating Voltage Verification ....................................................................... 3-5 4-Wire Ohms Verification ................................................................................. 3-6 2-Wire Ohms Verification ................................................................................. 3-7 Direct Current Verification ................................................................................ 3-8 Alternate Current Verification ........................................................................... 3-10 Frequency Verification ...................................................................................... 3-11 Adjustment (Calibration) ................................................................................... 3-11 Equipment for Calibration ............................................................................. 3-11 Adjustment Process ....................................................................................... 3-11 Front Panel Adjustments ............................................................................... 3-11 RS-232 Calibration (Manual) ........................................................................ 3-16 RS-232 Calibration (Automatic) ................................................................... 3-17 Calibration Points...................................................................................... 3-17 4 List of Replaceable Parts.................................................................... 4-1 Introduction........................................................................................................ 4-3 How to Obtain Parts........................................................................................... 4-3 How to Contact Fluke ........................................................................................ 4-3 Parts Lists........................................................................................................... 4-4 ii

List of Tables Table Title Page 1-1. Safety and Electrical Symbols................................................................................ 1-4 1-2. Accessories............................................................................................................. 1-8 2-1. Line Voltage to Fuse Rating................................................................................... 2-5 3-1. Required Test Equipment....................................................................................... 3-3 3-2. Direct Voltage Verification Steps .......................................................................... 3-4 3-3. Alternating Voltage Verification Steps .................................................................. 3-5 3-4. 4-Wire Ohms Verification Steps ............................................................................ 3-6 3-5. 2-Wire Ohms Verification Steps ............................................................................ 3-7 3-6. Direct Current Verification Steps........................................................................... 3-9 3-7. Alternating Current Verification Steps .................................................................. 3-10 3-8. Frequency Verification Steps ................................................................................. 3-11 3-9. Adjustment Steps ................................................................................................... 3-12 4-1. Front-Panel Assembly ............................................................................................ 4-4 4-2. Chassis Assembly................................................................................................... 4-6 iii

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List of Figures Figure Title Page 1-1. IEC 61010 Measurement Category (CAT) Levels................................................. 1-6 2-1. Replacing the Line Power Fuse.............................................................................. 2-5 2-2. Replacing the Current-Input Fuses......................................................................... 2-7 2-3. Display Elements ................................................................................................... 2-8 3-1. Direct and Alternating Voltage Verification Test Setup ........................................ 3-4 3-2. 4-Wire Ohms Test Setup ........................................................................................ 3-6 3-3. 2-Wire Ohms Test Setup ........................................................................................ 3-7 3-4. Less than 2 Amps Direct and Alternating Current Test Setup ............................... 3-8 3-5. 2 Amps and Greater Direct and Alternating Current Test Setup............................ 3-9 4-1. Front-Panel Assembly ............................................................................................ 4-5 4-2. Chassis Assembly................................................................................................... 4-7 v

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Chapter 1 Introduction and Specifications Title Page Introduction.......................................................................................................... 1-3 Safety Information ............................................................................................... 1-3 Symbols ........................................................................................................... 1-4 General Safety Summary................................................................................. 1-4 Description of IEC 61010 Measurement Categories ........................................... 1-6 Manual Set ........................................................................................................... 1-7 About This Manual .............................................................................................. 1-7 Operating Instructions.......................................................................................... 1-8 Accessories .......................................................................................................... 1-8 General Specifications ......................................................................................... 1-9 Voltage ............................................................................................................ 1-9 Dimensions ...................................................................................................... 1-9 Display............................................................................................................. 1-9 Environment .................................................................................................... 1-9 Safety............................................................................................................... 1-9 EMC ................................................................................................................ 1-9 Triggering ........................................................................................................ 1-9 Math Functions................................................................................................ 1-9 Electrical.......................................................................................................... 1-9 Remote Interfaces ............................................................................................ 1-9 Warranty .......................................................................................................... 1-10 Electrical Specifications ...................................................................................... 1-10 DC Voltage Specifications .............................................................................. 1-10 AC Voltage Specifications .............................................................................. 1-10 Resistance ........................................................................................................ 1-12 DC Current ...................................................................................................... 1-12 AC Current ...................................................................................................... 1-13 Frequency ........................................................................................................ 1-14 Continuity ........................................................................................................ 1-14 Diode Test ....................................................................................................... 1-14 1-1

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Introduction and Specifications Introduction 1 Introduction The Fluke 8808A Digital Multimeter (hereafter referred to as the Meter) is a 5-1/2 digit dual-display multimeter designed for bench-top, field service, and system applications. The multiple measurement functions, plus the RS-232 remote interface, make the Meter an ideal candidate for precision manual measurements and use in automated systems. For portability, the Meter includes a carrying handle that also serves as a bail for bench-top operation. Some features provided by the Meter are: • A dual vacuum fluorescent display that allows two properties of an input signal to be displayed at the same time (e.g., ac voltage in one display and frequency in the other) • 5-1/2 digit resolution • True-rms ac • 2, 4 wire resistance or patented 2x4 wire resistance measurement technique • 200 mV to 1000 Vdc range with 1 μV sensitivity • 200 mV to 750 Vac rms with 1 μV sensitivity • 200 Ω to 100 MΩ with 1 mΩ sensitivity • 200 μA to 10 Adc with 1 nA sensitivity • 20 mA to 10 Aac with 100 nA sensitivity • Frequency measurements from 20 Hz to 1 MHz • Continuity and diode test • Measurement rates of 2.5, 20 and 100 samples/second (slow, medium and fast, respectively) • Front-panel setup key for single key access to saved setups • A compare mode to determine if a measurement is within defined limits • Remote operation via the RS-232 interface • Closed-case calibration (no internal calibration adjustments) Safety Information This section addresses safety considerations and describes symbols that may appear on the Meter or in the manual. A Warning statement identifies conditions or practices that could result in injury or death. A Caution statement identifies conditions or practices that could result in damage to the Meter or equipment to which it is connected. XWWarning To avoid electric shock, personal injury, or death, carefully read the information in the “Safety Information” section, before attempting to install, use or service the Meter. 1-3

8808A Calibration Manual Symbols Table 1-1 lists safety and electrical symbols that appear on the Meter or in this manual. Table 1-1. Safety and Electrical Symbols Symbol Description Symbol Description W Risk of danger. Important P Standby power ON / OFF information. See manual. X Hazardous voltage. Voltage > 30 V J Earth ground dc or ac peak might be present. B AC (Alternating Current) E Capacitance F DC (Direct Current) G Diode D AC or DC (Alternating or Direct or I Fuse C Current) R Continuity test or continuity beeper Y Digital signal tone Y Potentially hazardous voltage U Maintenance or Service T Double insulated < Recycle Do not dispose of this product as h Static awareness. Static discharge ~ unsorted municipal waste. Go to can damage parts. Fluke’s website for recycling information. Measurement Category II is for Measurement Category I is for CAT II measurements performed on CAT I measurements not directly circuits directly connected to the connected to mains. low voltage installation. General Safety Summary This instrument has been designed and tested in accordance with the European standard publication EN61010-1: 2001 and U.S. / Canadian standard publications UL 61010- 1:2004and CAN/CSA-C22.2 No.61010.1:2004. The Meter has been supplied in a safe condition. This manual contains information and warnings that must be observed to keep the instrument in a safe condition and ensure safe operation. To use the Meter correctly and safely, read and follow the precautions below and follow all the safety instructions or warnings given throughout this manual that relate to specific measurement functions. In addition, follow all generally accepted safety practices and procedures required when working with and around electricity. XW Warning To avoid possible electric shock, personal injury, or death, read the following before using the Meter: • Use the Meter only as specified in this manual, or the protection provided by the Meter might be impaired. • Do not use the Meter in damp or wet environments. 1-4

Introduction and Specifications Safety Information 1 • Inspect the Meter before using it. Do not use the Meter if it appears damaged. • Inspect the test leads before use. Do not use them if insulation is damaged or metal is exposed. Check the test leads for continuity. Replace damaged test leads before using the Meter. • Verify the Meter's operation by measuring a known voltage before and after using it. Do not use the Meter if it operates abnormally. Protection may be impaired. If in doubt, have the Meter serviced. • Whenever it is likely that safety protection has been impaired, make the Meter inoperative and secure it against any unintended operation. • Have the Meter serviced only by qualified service personnel. • Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth ground. • Always use the power cord and connector appropriate for the voltage and outlet of the country or location in which you are working. • Remove test leads from the Meter before opening the case. • Never remove the cover or open the case of the Meter without first removing it from the main power source. • Never operate the Meter with the cover removed or the case open. • Use caution when working with voltages above 30 V ac rms, 42V ac peak, or 42 V dc. These voltages pose a shock hazard. • Use only the replacement fuses specified by the manual. • Use the proper terminals, function and range for your measurements. • Do not operate the Meter around explosive gas, vapor or dust. • When using probes, keep your fingers behind the finger guards. • When making electrical connections, connect the common test lead before connecting the live test lead. When disconnecting, disconnect the live test lead before disconnecting the common test lead. • Disconnect circuit power and discharge all high voltage capacitors before testing resistance, continuity, diodes, or capacitance. 1-5

8808A Calibration Manual • Before measuring current, check the Meter's fuses and turn OFF power to the circuit before connecting the Meter to the circuit. • When servicing the Meter, use only specified replacement parts. Description of IEC 61010 Measurement Categories The IEC 61010 safety standard defines four Overvoltage (Installation) Categories (CAT I to CAT IV) based on the magnitude of danger from transient impulses as shown in Figure 1-1. CAT I CAT II CAT III CAT IV Electronic Appliances, MC Panels, etc. PCs, TVs Service Entrance Meter Service Entrance Outbuilding Meter Underground Service Service Transformer Outbuilding Entrance Meter Underground Service cat_levels.eps Figure 1-1. IEC 61010 Measurement Category (CAT) Levels The IEC 61010 Measurement CAT level indicates the level of protection the instrument provides against impulse withstand voltage. CAT I equipment is designed to protect against transients from high-voltage, low-energy sources, such as electronic circuits or a copy machine. CAT II equipment is designed to protect against transients from energy-consuming equipment supplied from the fixed installation, such as TVs, PCs, portable tools, and other household appliances. CAT III equipment is designed to protect against transients in equipment in fixed equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. CAT IV equipment is designed to protect against transients from the primary supply level, such as an electricity meter or an overhead or underground utility service. 1-6

Introduction and Specifications Manual Set 1 Manual Set The manual set for this Meter consists of a printed Getting Started Manual, and a Users and Calibration Manual on a CD-ROM. The Getting Started Manual contains basic getting started information, contacting Fluke, unpacking, and general specifications. About This Manual This calibration manual contains information for a technician to maintain the Meter, verify its performance, and if necessary, calibrate the Meter to specifications. The manual is divided into the following chapters: Chapter 1 – Introduction and Specifications This chapter introduces the Fluke 8808A Digital Multimeter, describing its features, and accessories. This chapter also discusses use of the Calibration Manual and the various conventions used in describing the meter’s circuitry and presents a complete set of specifications. Chapter 2 – General Maintenance Chapter 2 provides maintenance information covering handling, cleaning, and fuse replacement. Chapter 3 – Performance Verification and Calibration This chapter provides performance verification procedures related to the specifications presented in Chapter 1. To maintain these specifications, a full adjustment/calibration procedure is also presented. Chapter 4 – Parts Chapter 4 includes a list user replaceable parts and information on how and where to order parts. 1-7

8808A Calibration Manual Operating Instructions Full operating instructions are provided in the Fluke 8808A Users Manual. Reference to these instructions may be necessary during some of the procedures presented in this Calibration Manual. Accessories Table 1-2 lists the available accessories for the 8808A. Table 1-2. Accessories Item Model / Part Number Premium Test Lead Set TL71 Fuse, .25*1.25, 0.063 A, 250 V, Slow 163030 Fuse, .25*1.25, 0.125 A, 250 V, Slow 166488 F1 - Fuse, 11 A, 1000 V, Fast, 406INX1.5IN, BULK 803293 F2 - Fuse, 440 mA, 1000 V, Fast, 406INX1.375IN, BULK 943121 Rack Mount Kit 8845A & 8846A Single Y8846S Rack Mount Kit 8845A & 8846A Dual Y8846D RS-232 Cable (2 m) RS43 Precision Electronic Prob Set TL910 2X4 Wire Ohms 1000 V Test Lead TL2X4W-PTII FlukeView Forms Basic Software FVF-SC5 FlukeView Forms Software Upgrade to enhanced version FVF-UG 1-8

Introduction and Specifications General Specifications 1 General Specifications Voltage 100V Setting ...................................................... 90 V to 110 V 120V Setting ..................................................... 108 V to 132 V 220V Setting ..................................................... 198 V to 242 V 240V Setting ..................................................... 216 V to 264 V Frequency.......................................................... 47 Hz to 440 Hz Power Consumption ......................................... 15 VA peak (10 W average) Dimensions Height................................................................. 88 mm (3.46 in) Width .................................................................. 217 mm (8.56 in) Depth ................................................................. 297 mm (11.7 in) Weight ................................................................ 2.1 kg (4.6 Ib) Display Vacuum Fluorescent Display, segment Environment Temperature Operating ........................................................ 0 °C to 50 °C Storage ........................................................... -40 °C to 70 °C Warm Up......................................................... ½ hour to full uncertainty specifications Relative Humidity (non-condensing) Operating ........................................................ <90 % (0 °C to 28 °C) <75 % (28 °C to 40 °C) <45 % (40 °C to 50 °C) Storage .......................................................... -40 °C to 70 °C <95 % Altitude Operating ....................................................... 2,000 Meters Storage............................................................... 12,000 Meters Vibration ............................................................ Complies with MIL-PRF-28800F Class 3 Safety Complies with IEC 61010-1:2001, ANSI/ISA 61010-1 (S82.02.01):2004, UL 61010-1:2004, CAN/CSA C22.2 No. 61010.1:2004, CAT I 1000V/CAT II 600 V EMC Designed to comply with IEC 61326-1:1997+A1:1998+A2:2000 Triggering Trigger Delay .................................................... 400 ms External Trigger Delay ..................................... <2 ms External Trigger Jitter ..................................... <1 ms Trigger Input ..................................................... TTL Levels Trigger Output ................................................... 5 V max Math Functions Min/max, relative, hold, compare and dB functions Electrical Input Protection ............................................... 1000 V all ranges Overrange .......................................................... 10 % on the largest ranges of all functions except continuity and diode test 1-9

8808A Calibration Manual Remote Interfaces RS-232C Warranty One year Electrical Specifications Specifications are valid for 5-½ digit mode and after at least a half-hour warm-up. DC Voltage Specifications Maximum Input ................................................. 1000 V on any range Common Mode Rejection................................. 120 dB at 50 or 60 Hz ±0.1％ (1 kΩ unbalance) Normal Mode Rejection .................................... 80 dB at Slow Rate A/D Nonlinearity ................................................ 15 ppm of range Input Bias Current ............................................ <30 pA at 25 °C Settling Considerations ................................... Measurement settling times are affected by source impedance, cable dielectric characteristics, and input signal changes Input Characteristics Range Full-Scale Resolution (5-1/2 Digits) Input Impedance Slow Medium Fast 200 mV 199.999 mV 1 μV 10 μV 10 μV >10 GΩ[1] 2 V 1.99999 V 10 μV 100 μV 100 μV >10 GΩ[1] 20 V 19.9999 V 100 μV 1000 μV 1000 μV 10 MΩ±1 % 200 V 199.999 V 1 mV 10 mV 10 mV 10 MΩ±1 % 1000 V 1000.00 V 10 mV 100 mV 100 mV 10 MΩ±1 % Notes: [1] At some dual display measurements, the input impedance of 200 mV and 2 V ranges may be changed to 10 MΩ. Uncertainty [1] Range Temperature Coefficient/°C 90 days 1 year Outside 18 – 28 °C 23 °C ± 5 °C 23 °C ± 5°C 200 mV 0.01 + 0.003 0.015 + 0.004 0.0015 + 0.0005 2 V 0.01 + 0.002 0.015 + 0.003 0.001 + 0.0005 20 V 0.01 + 0.003 0.015 + 0.004 0.0020 + 0.0005 200 V 0.01 + 0.002 0.015 + 0.003 0.0015 + 0.0005 1000 V 0.01 + 0.002 0.015 + 0.003 0.0015 + 0.0005 Notes: [1] Uncertainty given as ± (% of reading + % of range) AC Voltage Specifications AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz, add an additional error of 0.1 % of range, and for 50 kHz to 100 kHz, add 0.13 % of range. Maximum Input ................................................. 750 V rms or 1000 V peak or 8 x 107 Volts-Hertz product Measurement Method ....................................... AC-coupled true-rms. Measures the ac component of input with up to 1000 V dc bias on any range. AC Filter Bandwidth ......................................... 20 Hz – 100 kHz Common Mode Rejection................................. 60 dB at 50 Hz or 60 Hz (1 kΩ unbalance) Maximum Crest Factor .................................... 3:1 at Full Scale Additional Crest Factor Errors (<100 Hz) ...... Crest Factor 1-2, 0.05 % of full scale Crest Factor 2-3, 0.2 % of full scale Only applies for non-sinusoid signals 1-10

Introduction and Specifications Electrical Specifications 1 Input Characteristics Resolution Range Full-Scale (5-1/2 Digits) Input Impedance Slow Medium Fast 200 mV 199.999 mV 1 μV 10 μV 10 μV 1 MΩ ±2 % shunted by 2 V 1.99999 V 10 μV 100 μV 100 μV <100 pf 20 V 19.9999 V 100 μV 1000 μV 1000 μV 200 V 199.999 V 1 mV 10 mV 10 mV 750 V 750.00 V 10 mV 100 mV 100 mV Uncertainty [1] Temperature Range Frequency 90 days 1 year Coefficient/°C 23 °C ± 5 °C 23 °C ± 5 °C Outside 18 – 28 °C 200 mV 20 Hz – 45Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005 45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005 20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 2 V 20 Hz – 45Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005 45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005 20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 20 V 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005 45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005 20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 200 V 20 Hz – 45Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005 45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005 20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 750 V 20 Hz – 45Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005 45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005 20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 Notes: [1] Uncertainty given as ± (% of reading + % of range) 1-11

8808A Calibration Manual Resistance Specifications are for 4-wire resistance function, or 2-wire resistance with REL. If REL is not used, add 0.2 Ω for 2-wire resistance plus lead resistance. Measurement Method ....................................... Current source referenced to LO input Max Lead Resistance (4-wire ohms) ............... 10 % of range per lead for 200 Ω, 2 kΩ ranges. 1 kΩ per lead on all other ranges. Input Protection ................................................ 1000 V on all ranges Input Characteristics Resolution Range Full-Scale (5-1/2 Digits) Current Source Slow Medium Fast 200 Ω 199.999 Ω 0.001 Ω 0.01 Ω 0.01 Ω 0.8 mA 2 kΩ 1.99999 kΩ 0.01 Ω 0.1 Ω 0.1 Ω 0.8 mA 20 kΩ 19.9999 kΩ 0.1 Ω 1 Ω 1 Ω 0.08 mA 200 kΩ 199.999 kΩ 1 Ω 10 Ω 10 Ω 0.008 mA 2 MΩ 1.99999 MΩ 10 Ω 100 Ω 100 Ω 0.9 μA 20 MΩ 19.9999 MΩ 100 Ω 1 kΩ 1 kΩ 0.16 μA 100 MΩ 100.000 MΩ 1 kΩ 10 kΩ 10 kΩ 0.16 μA || 10 MΩ Uncertainty [1] Range Temperature Coefficient/°C 90 days 1 year Outside 18 – 28 °C 23 °C ± 5 °C 23 °C ± 5 °C 200 Ω 0.02 + 0.004 0.03 + 0.004 0.003 + 0.0006 2 kΩ 0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005 20 kΩ 0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005 200 kΩ 0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005 2 MΩ 0.03 + 0.003 0.04 + 0.004 0.004 + 0.0005 20 MΩ 0.2 + 0.003 0.25 + 0.003 0.01 + 0.0005 100 MΩ 1.5 + 0.004 1.75 + 0.004 0.2 + 0.0005 Notes: [1] Uncertainty given as ± (% of reading + % of range) DC Current Input Protection ............................................... Tool accessible 11 A / 1000 V and 440 mA / 1000 V fuses. Shunt Resistance.............................................. 0.01 Ω for 2 A and 10 A ranges 1 Ω for 20 mA and 200 mA Burden voltage < 5 mV for 200 μA and 2 mA range. Input Characteristics Resolution Range Full-Scale Burden Voltage (5-1/2 Digits) Slow Medium Fast 200 μA 199.999 μA 0.001 μA 0.01 μA 0.01 μA <5 mV 2 mA 1999.99 μA 0.01 μA 0.1 μA 0.1 μA <5 mV 20 mA 19.9999 mA 0.1 μA 1 μA 1 μA <0.05 V 200 mA 199.999 mA 1 μA 10 μA 10 μA <0.5 V 2 A 1.99999 A 10 μA 100 μA 100 μA <0.1 V 10 A 10.0000 A 100 μA 1 mA 1 mA <0.5 V 1-12