B845 Protek, B845 Datasheet
![Digital Multimeters 4-1/2 Digit Bench DM](/photos/36/44/364491/b845_sml.jpg)
B845
Manufacturer Part Number
B845
Description
Digital Multimeters 4-1/2 Digit Bench DM
Manufacturer
Protek
Datasheet
1.B4100.pdf
(1 pages)
Specifications of B845
Accuracy
+/- 0.05 %
Resistance Range
20 M Ohms
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
14
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
S P E C I F I C A T I O N S
[ B845 ]
Volts DC:
Best Resolution: 10µV
Accuracy: ± (0.05% Rdg + 2D)
Maximum Input Volts: 1000V DC or 750V AC RMS
Input Impedance: 10MΩ
Volts AC Ranges:
Best Resolution: 10µV
Accuracy: ± (0.5% Rdg + 10D)
Max. Input Volts: 1000V DC or 750V AC RMS
Input Impedance: 10MΩ
Resistance:
Best Resolution: 10mΩ
Accuracy: ± (0.2% Rdg + 5D)
Maximum Input Volt: 250V DC or AC peak
DC Current:
Best Resolution: 10nA
Accuracy: ± (0.3% Rdg + 3D)
Overload Protection: 0.2A/250V fuse (10A range unfused)
AC Current:
Best Resolution: 10nA
Accuracy: ± (0.75% Rdg + 10D)
Overload Protection: 0.2A/250V fuse (10A range unfused)
Continuity Test:
resistance
Maximum Input Volts: 350V AC or DC Peak
Diode Test:
Test Current: 3mA
Maximum Input Volts: 250V DC or AC Peak
Ranges: 200mV, 2V, 20V, 200V, 1000V
Test Voltage: 2.8V
Ranges: 200Ω, 2KΩ, 20KΩ, 200KΩ, 2MΩ, 20MΩ
200µA, 2mA, 20mA, 200mA, 10A
Ranges 200µA, 2mA, 20mA, 200mA, 10A
B4100
B845
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
Buzzer sounds at less than 200Ω input
200mV, 2V, 20V, 200V, 1000V
4-1/2 Digit Digital Multimeter
B845
Bench Top
Digital Multimeters
General Specifications
Operating Temperature:
to 80%
Power:
Size:
Weight :
Supplied Accessories:
[ B4100 ]
Display
Slow:
Medium:
Fast:
Specifications (at 25°C ±5°C)
DC Voltage:
Best Resolutions: 10 µV (Slow), 100 µV (Med), 1mV (Fast)
Accuracy: ± (0.05% + 3D), Input impedance: 10MΩ
Overload protection: 1000V
AC Volts:
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:
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
3.0" H × 8.0" W × 10.5" D
Counts: 2,000; Digits: 3 ½
Counts: 200,000; Digits: 5 ½
115V/230V, 50/60Hz
5 lbs.
Counts: 20,000; Digits: 4 ½
Ranges: 2V, 20V, 200V, 1000V
Ranges: 2V, 20V, 200V, 1000V
Ranges: 200µA, 200mA, 10A
Manual, Test leads
0 to 40°C at a relative humidity of 0
B4100
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
5-1/2 Digit Programmable Multimeter
B4100
AC Current:
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:
Best Resolutions: 1mΩ (Slow), 10mΩ (Med), 100mΩ (Fast)
Accuracy: ±(0.05% + 5D)
Overload Protection: 250V or AC RMS
Frequency:
Best Resolutions: 1mHz(Slow), 10mHz (Med), 100mHz (Fast)
Accuracy: ± (0.05% + 2D)
Overload protection: 250V DC or AC RMS
Diode:
Test current: Approximately 1.0mA
Test Volts: Approximately 3 Volts
Continuity:
Interface:
Connector: 9 Pin din
Baud Rate: 1200, 2400, 4800 or 9600 bps
GPIB: optional
General Specifications
Display:
Dimensions:
Operating Temperature:
Power:
Supplied Accessories:
Software disk, RS-232 cable
Range: 2V
85V to 275V ±10%
128 x 64 pixel super twisted LCD
RS-232:
Buzzer will sound at 100Ω or less
Ranges: 200Hz, 2KHz, 20KHz, 200KHz
Best Resolution:
Ranges: 200Ω, 2KΩ, 200KΩ, 2MΩ, 10MΩ
3.3” H x 12.0” W x 11.0” D
Manual, Power cord, BNC cable,
0 to 50°C (32 to 120°F)