B845 datasheet, PDF - EEWORLD Datasheet

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B845: DescriptionDigital multimeter 4-1/2 digit bench DM; CategoryTopical application Test and measurement; File Size96KB，1 Pages; ManufacturerProtek Test & Measuremen; Websitehttp://www.protektest.com/

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B845 Overview

Digital multimeter 4-1/2 digit bench DM

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B845

B4100

Bench Top

Digital Multimeters

B4100

5-1/2 Digit Programmable Multimeter

5-1/2 Digit multimeter with selectable count resolutions

up to 200,000

True RMS and measures frequency

Selectable Count Resolutions: 2k, 20k, 200k

Auto-ranging

Trend plot display

RS-232 interface standard and optional GPIB interface

Min/Max/Avg, Relative error and comparison functions

May be used on line voltages from 85V to 250V without

any internal changes

Software included

Seven setups may be stored and recalled in memory

B845

4-1/2 Digit Digital Multimeter

4-1/2 digit LCD display with polarity indicator

.05% DC voltage accuracy

10µV AC & DC voltage resolution

10nA current resolution

10mΩ Resistance resolution

Data hold switch

Measures current to 10 Amps

200µA AC/DC Current Range

B845

B4100

SPECIFICATIONS

[ B845 ]

Volts DC:

Ranges: 200mV, 2V, 20V, 200V, 1000V

Best Resolution: 10µV

Accuracy: ± (0.05% Rdg + 2D)

Maximum Input Volts: 1000V DC or 750V AC RMS

Input Impedance: 10MΩ

Volts AC Ranges:

200mV, 2V, 20V, 200V, 1000V

Best Resolution: 10µV

Accuracy: ± (0.5% Rdg + 10D)

Max. Input Volts: 1000V DC or 750V AC RMS

Input Impedance: 10MΩ

Resistance:

Ranges: 200Ω, 2KΩ, 20KΩ, 200KΩ, 2MΩ, 20MΩ

Best Resolution: 10mΩ

Accuracy: ± (0.2% Rdg + 5D)

Maximum Input Volt: 250V DC or AC peak

DC Current:

200µA, 2mA, 20mA, 200mA, 10A

Best Resolution: 10nA

Accuracy: ± (0.3% Rdg + 3D)

Overload Protection: 0.2A/250V fuse (10A range unfused)

AC Current:

Ranges 200µA, 2mA, 20mA, 200mA, 10A

Best Resolution: 10nA

Accuracy: ± (0.75% Rdg + 10D)

Overload Protection: 0.2A/250V fuse (10A range unfused)

Continuity Test:

Buzzer sounds at less than 200Ω input

resistance

Maximum Input Volts: 350V AC or DC Peak

Diode Test:

Test Voltage: 2.8V

Test Current: 3mA

Maximum Input Volts: 250V DC or AC Peak

General Specifications

Operating Temperature:

0 to 40°C at a relative humidity of 0

to 80%

Power:

115V/230V, 50/60Hz

Size:

3.0" H × 8.0" W × 10.5" D

Weight :

5 lbs.

Supplied Accessories:

Manual, Test leads

AC Current:

Best Resolution:

200 µA: 10 nA (Slow and Med), 100nA (Fast)

200mA: 1µA (Slow), 10µA (Med), 100µA (Fast)

10A: 100µA (Slow), 1mA (Med), 10mA (Fast)

Accuracy: ± (0.5% + 5D), Max burden: 200mV

Overload protection: 0.5A/250V and10A/250V fuse

Resistance:

Ranges: 200Ω, 2KΩ, 200KΩ, 2MΩ, 10MΩ

Best Resolutions: 1mΩ (Slow), 10mΩ (Med), 100mΩ (Fast)

Accuracy: ±(0.05% + 5D)

Overload Protection: 250V or AC RMS

Frequency:

Ranges: 200Hz, 2KHz, 20KHz, 200KHz

Best Resolutions: 1mHz(Slow), 10mHz (Med), 100mHz (Fast)

Accuracy: ± (0.05% + 2D)

Overload protection: 250V DC or AC RMS

Diode:

Range: 2V

Test current: Approximately 1.0mA

Test Volts: Approximately 3 Volts

Continuity:

Buzzer will sound at 100Ω or less

Interface:

RS-232:

Connector: 9 Pin din

Baud Rate: 1200, 2400, 4800 or 9600 bps

GPIB: optional

General Specifications

Display:

128 x 64 pixel super twisted LCD

Dimensions:

3.3” H x 12.0” W x 11.0” D

Operating Temperature:

0 to 50°C (32 to 120°F)

Power:

85V to 275V ±10%

Supplied Accessories:

Manual, Power cord, BNC cable,

Software disk, RS-232 cable

[ B4100 ]

Display

Slow:

Counts: 200,000; Digits: 5 ½

Medium:

Counts: 20,000; Digits: 4 ½

Fast:

Counts: 2,000; Digits: 3 ½

Specifications (at 25°C ±5°C)

DC Voltage:

Ranges: 2V, 20V, 200V, 1000V

Best Resolutions: 10 µV (Slow), 100 µV (Med), 1mV (Fast)

Accuracy: ± (0.05% + 3D), Input impedance: 10MΩ

Overload protection: 1000V

AC Volts:

Ranges: 2V, 20V, 200V, 1000V

Best Resolutions: 100 µV (Slow and Med), 1mV (Fast)

Accuracy: ± (0.5% + 5D) 45Hz to 450Hz

Overload Protection: 1000V, Crest Factor: 3:1

DC Current:

Ranges: 200µA, 200mA, 10A

Best Resolutions: 200µA: 1nA (Slow), 10nA (Med),100nA

(Fast)

200mA: 1µA (Slow), 10µ (Med), 100µA (Fast)

10A: 100µA (Slow), 1mA (Med), 10mA (Fast)

Accuracy: ± (0.1% + 5D), Max burden: 200mV

Overload protection: 0.5A/250V and 10/250V fuse

Protek Test & Measurement

40 Boroline Road, Allendale, NJ 07401 Tel: 201-760-9898 Fax: 201-760-9888

Website: www.protektest.com E-Mail: sales@protektest.com

B845 Related Products

	B845	B4100
Description	Digital multimeter 4-1/2 digit bench DM	digital multimeter programmable bench D

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