FLUKE 2748044_6200_ENG_B_W 电路图.pdf

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1、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 rema

2、rkably 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

3、 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. Exte

4、nd 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 comb

5、i- 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

6、 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 e

7、mulation 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

8、 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

9、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.

10、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 sh

11、ielded 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 Lev

12、els 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, Offse

13、t, 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,

14、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 specifi

15、cations 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 Co

16、mmon 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 Linea

17、rity.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

18、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

19、.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

20、 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.

21、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

22、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 1

23、00 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 Filt

24、er 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,

25、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

26、.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

27、 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 Rejectio

28、n.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 ar

29、e 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 10.0

30、0000 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 +

31、 % 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

32、.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.

33、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

34、.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

35、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/

36、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 gre

37、ater 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 Resistan

38、ce (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