FLUKE 2748044_6200_ENG_B_W 电路图.pdf

Fluke 8845A/8846A Digital Multimeters Extended Specifications The Fluke 8845A and 8846A 6.5 digit precision multime- ters have the precision and versatility to handle your most demanding measurements, on the bench or in a system. These meters are both high performance and feature rich, yet also remarkably easy to use. These digital multimeters perform the functions you would expect to see in a multifunction DMM, including measuring volts, ohms, and amps, with performance that exceeds expec- tations. Basic V dc accuracy of up to 0.0024 %, 10 A current range, and a wide ohms range from 10 W to 1 GW with up to 10 W resolution give you an unbeatable combination of measurement capability. You can also use the 8845A and 8846A to measure tempera- ture, capacitance, period, and frequencythe functions of a counter, capacitance meter, and thermometer are built in for unparalleled versatility. Extend the meters utility even more with their graphical display modes, including Trendplot paperless recorder mode, statis- tics and histogramsfeatures you wont find on other multimeters. Of course, these meters are also durable and dependable, features you expect from any Fluke meter. This unique combi- nation of features and perfor- mance makes the 8845A and 8846A an unbeatable value for a wide variety of applications, including manufacturing test, research and development, and service. Features at a glance 6.5 digit resolution Basic V dc accuracy of up to 0.0024 % (1 yr.) Dual display 100 A to 10 A current range, with up to 100 pA resolution Wide ohms ranges from 10 W to 1 GW with up to 10 W resolution 2 x 4 ohms 4-wire measurement technique Both models measure frequency and period 8846A also measures capacitance and temperature USB memory drive port (8846A) Fluke 45 and Agilent 34401A emulation Graphical display Trendplot paperless recorder mode, statistics, histogram CAT I 1000 V, CAT II 600 V RadioFans.CN 收音机爱 好者资料库 8845A and 8846A Fluke Corporation 1 General Specifications Power Voltage 100 V Setting. 90 V to 110 V 120 V Setting. 108 V to 132 V 220 V Setting. 198 V to 242 V 240 V Setting. 216 V to 264 V Frequency. 47 Hz to 440 Hz. Automatically sensed at power-on. Power Consumption. 28 VA peak (12 Watt average) Dimensions Height . 88 mm (3.46 in.) Width . 217 mm (8.56 in.) Depth. 297 mm (11.7 in.) Weight . 3.6 kg (8.0 lb) Shipping Weight . 5.0 kg (11.0 lb) Display Vacuum Fluorescent Display, dot matrix Environment Temperature Operating. 0 C to 55 C Storage. -40 C to 70 C Warm Up. 1 hour to full uncertainty specifications Relative Humidity (non-condensing) Operating. 0 C to 28 C <90 % 28 C to 40 C <80 % 40 C to 55 C <50 % Storage. -40 C to 70 C <95 % Altitude Operating. 2,000 Meters Storage. 12,000 Meters Vibration and Shock.Complies with Mil-T-28800F Type III, Class 5 (Sine only) Safety Designed to comply with IEC 61010-1:2000-1, UL 61010-1A1, CAN/CSA-C22.2 No. 61010.1, CAT I 1000V/CAT II 600V EMC Designed to comply with IEC 61326-1:2000-11 (EMC) when used with shielded communications cables. This Meter has shown susceptibility to radiated frequencies greater than 1 V/m from 250 to 450 MHz. Triggering Samples per Trigger.1 to 50,000 Trigger Delay.0 s to 3600 s; in 10 S increments External Trigger Delay.<1 mS External Trigger Jitter.<500 S Trigger Input.TTL Levels Trigger Output.5 V maximum (open collector) Memory 8845A .10,000 measurements, internal only 8846A .10,000 measurements, internal, and up to 2 Gigabyte capacity with USB memory module (available separately, see “Accessories”) through front-panel USB port Math Functions Zero, dBm, dB, MX+B, Offset, DCV ratio and TrendPlot, Histogram, Statistics (min/max/average/standard deviation), and Limit Test RadioFans.CN 收音机爱 好者资料库 2 Fluke Corporation 8845A and 8846A Electrical Input Protection.1000 V all ranges Overrange.20 % on all ranges except 1000 V dc, 1000 V ac (8846A), 750 V ac (8845A), Diode, and 10 A ranges Remote Interfaces RS-232C, DTE 9-pin, 1200 to 230400 baud (RS-232C to USB cable available to connect the Meter to a PC USB port. See Accessories) IEEE 488.2 LAN and “Ethernet 10/100 base T with DHCP (for IP_ADDRess) option” Warranty One year Electrical Specifications Accuracy specifications are valid for 6 digit resolution mode after at least a 1-hour warm-up with Auto Zero enabled. 24-hour specifications are relative to calibration standards and assume a controlled electromagnetic environment per EN 61326-1:2000-11 DC Voltage Specifications Maximum Input.1000 V on any range Common Mode Rejection.140 dB at 50 or 60 Hz 0.1 % (1 k unbalance) Normal Mode Rejection .60 dB for NPLC of 1 or greater with analog filter off and power line frequency 0.1 % 100 dB for NPLC of 1 or greater with analog filter on and power line frequency 0.1 % Measurement Method.Multi-ramp A/D A/D Linearity.0.0002 % of measurement +0.0001 % of range Input Bias Current.10 G 1 1 V 1.000000 V 100 V 10 V 1 V 10 M or 10 G 1 10 V 10.00000 V 1 mV 100 V 10 V 10 M or 10 G 1 100 V 100.0000 V 10 mV 1 mV 100 V 10 M 1% 1000 V 1,000.000 V 100 mV 10 mV 1 mV 10 M 1% 1 Inputs beyond 14 V are clamped through 200 k typical. 10 M is default input impedance. 8846A Accuracy Accuracy is given as (% measurement + % of range) Range 24 Hour (23 1 C) 90 Days (23 5 C) 1 Year (23 5 C) Temperature Coefficient/ C Outside 18 to 28 C 100 mV 0.0025 + 0.003 0.0025 + 0.0035 0.0037 + 0.0035 0.0005 + 0.0005 1 V 0.0018 + 0.0006 0.0018 + 0.0007 0.0025 + 0.0007 0.0005 + 0.0001 10 V 0.0013 + 0.0004 0.0018 + 0.0005 0.0024 + 0.0005 0.0005 + 0.0001 100 V 0.0018 + 0.0006 0.0027 + 0.0006 0.0038 + 0.0006 0.0005 + 0.0001 1000 V 0.0018 + 0.0006 0.0031 + 0.001 0.0041 + 0.001 0.0005 + 0.0001 RadioFans.CN 收音机爱 好者资料库 8845A and 8846A Fluke Corporation 3 8845A Accuracy Accuracy is given as (% measurement + % of range) Range 24 Hour (23 1 C) 90 Days (23 5 C) 1 Year (23 5 C) Temperature Coefficient/ C Outside 18 to 28 C 100 mV 0.003 + 0.003 0.004 + 0.0035 0.005 + 0.0035 0.0005 + 0.0005 1 V 0.002 + 0.0006 0.003 + 0.0007 0.004 + 0.0007 0.0005 + 0.0001 10 V 0.0015 + 0.0004 0.002 + 0.0005 0.0035 + 0.0005 0.0005 + 0.0001 100 V 0.002 + 0.0006 0.0035 + 0.0006 0.0045 + 0.0006 0.0005 + 0.0001 1000 V 0.002 + 0.0006 0.0035 + 0.0010 0.0045 + 0.0010 0.0005 + 0.0001 Additional Errors Digits NPLC Additional NPLC Noise Error 6 100 0 % of range 6 10 0 % of range 5 1 0.001 % of range 5 .2 0.0025 % of range +12 V 4 0.02 0.017 % of range +17 V 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 (8845A), 1000 V rms or 1414 V peak (8846A) or 8 x 10 7 volts-Hertz product (whichever is less) for any range. 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: Slow.3 Hz 300 kHz Medium.20 Hz 300 kHz Fast.200 Hz 300 kHz Common Mode Rejection.70 dB at 50 Hz or 60 Hz 0.1 % (1 k unbalance) Crest Factor Error (applies to non-sinusoidal waveforms only) Maximum Crest Factor.5:1 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 Crest factor 3-4, 0.4 % of full scale Crest factor 4-5, 0.5 % of full scale Input Characteristics Resolution Range Resolution 4 Digits 5 Digits 6 Digits Input Impedance 100 mV 100.0000 mV 10 V 1 V 100 nV 1 V 1.000000 V 100 V 10 V 1 V 10 V 10.00000 V 1 mV 100 V 10 V 100 V 100.0000 V 10 mV 1 mV 100 V 1000 V 1,000.000 V 100 mV 10 mV 1 mV 1 M 2 % shunted by 1 kHz 0 0 0 Resistance Specifications are for 4-wire resistance function, 2 x 4-wire resistance, or 2-wire resistance with zero. If zero is not used, add 0.2 for 2- wire resistance plus lead resistance, and add 20 m for 2 x 4-wire resistance function. Measurement Method.Current source referenced to LO input Max. Lead Resistance (4-wire ohms).10 % of range per lead for 10 , 100 , 1 k ranges. 1 k per lead on all other ranges Input Protection.1000 V on all ranges Common Mode Rejection.140 dB at 50 or 60 Hz 0.1 % (1 k unbalance) Normal Mode Rejection .60 dB for NPLC of 1 or greater with analog filter off and power line frequency 0.1 % 100 dB for NPLC of 1 or greater with analog filter on and power line frequency 0.1 % Analog Filter.When using the analog filter, specifications are relative to within one hour of using the ZERO function for that range and NPLC setting. Input Characteristics Resolution Range Resolution 4 Digits 5 Digits 6 Digits Source Current 10 1 10.00000 1 m 100 10 5 mA/13 V 100 100.0000 10 m 1 m 100 1 mA/6 V 1 k 1.000000 k 100 m 10 m 1 m 1 mA/6 V 10 k 10.00000 k 1 100 m 10 m 100 A/6 V 100 k 100.0000 k 10 1 100 m 100 A/13 V 1 M 1.000000 M 100 10 1 10 A/13 V 10 M 10.00000 M 1 k 100 10 1 A/13 V 100 M 100.0000 M 10 k 1 k 100 1 A | 10 M/10 V 1.0 G 1 1.000000 G 100 k 10 k 1 k 1 A | 10 M/10 V 1 8846A Only 8846A Accuracy Accuracy is given as (% measurement + % of range) Range 24 Hour (23 1 C) 90 Days (23 5 C) 1 Year (23 5 C) Temperature Coefficient/ C Outside 18 to 28 C 10 0.003 + 0.01 0.008 + 0.03 0.01+ 0.03 0.0006 + 0.0005 100 0.003 + 0.003 0.008 + 0.004 0.01 + 0.004 0.0006 + 0.0005 1 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 10 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 100 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 1 M 0.002 + 0.001 0.008 + 0.001 0.01 + 0.001 0.001 + 0.0002 10 M 0.015 + 0.001 0.02 + 0.001 0.04 + 0.001 0.003 + 0.0004 100 M 0.3 + 0.01 0.8 + 0.01 0.8 + 0.01 0.15 + 0.0002 1 G 1.0 + 0.01 1.5 + 0.01 2.0 + 0.01 0.6 + 0.0002 8845A Accuracy Accuracy is given as (% measurement + % of range) Range 24 Hour (23 1 C) 90 Days (23 5 C) 1 Year (23 5 C) Temperature Coefficient/ C Outside 18 to 28 C 100 0.003 + 0.003 0.008 + 0.004 0.01 + 0.004 0.0006 + 0.0005 1 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 10 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 100 k 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 1 M 0.002 + 0.001 0.008 + 0.001 0.01 + 0.001 0.0010 + 0.0002 10 M 0.015 + 0.001 0.02 + 0.001 0.04 + 0.001 0.0030 + 0.0004 100 M 0.3 + 0.01 0.8 + 0.01 0.8 + 0.01 0.1500 + 0.0002 6 Fluke Corporation 8845A and 8846A Additional Ohms Errors Digits NPLC Additional NPLC Noise Error 6 100 0 % of range 6 10 0 % of range 5 1 0.001 % of range 5 0.2 0.003 % of range 7 m 4 0.02 0.017 % of range 15 m DC Current Input Protection.Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses, limits of 400 mA continuous 550 mA for 2 minutes on, 1 minute off. Common Mode Rejection.140 dB at 50 or 60 Hz 0.1 % (1 k unbalance) Normal Mode Rejection .60 dB for NPLC of 1 or greater with analog filter off and power line frequency 0.1 % 100 dB for NPLC of 1 or greater with analog filter on and power line frequency 0.1 % Analog Filter.When using the analog filter, specifications are relative to within one hour of using the ZERO function for that range and NPLC setting. Input Characteristics Resolution Range Resolution 4 Digits 5 Digits 6 Digits Shunt Resistance (Ohms) Burden Voltage 100 A 100.0000 A 10 nA 1 nA 100 pA 100 <0.015 V 1 mA 1.000000 mA 100 nA 10 nA 1 nA 100 <0.15 V 10 mA 10.00000 mA 1 A 100 nA 10 nA 1 <0.025 V 100 mA 100.0000 mA 10 A 1 A 100 nA 1 <0.25 V 400 mA 3 400.000 mA 100 A 10 A 1 A 1 <0.50 V 1 A 2 1.000000 A 100 A 10 A 1 A 0.01 <0.05 V 3 A 1 3.00000A 1 mA 100 A 10 A 0.01 <0.15 V 10 A 10.00000 A 1 mA 100 A 10 A 0.01 <0.5 V 1 Part of 10 A range. 2 Available on the front panel terminal only. 3 400 mA available in software version 2.0 or greater only. 400 mA continuously; 550 mA for 2 minutes on, 1 minute of