Selectable 120 000/40 000/4 000-count multimeter

Basic accuracy 0.012% V DC

Voltage masurement up to 1000V DC et 750V AC

Current measurement up to 12A

True RMS AC, AC+DC with 100KHz bandwidth

Resistance measurement up to 120Mohms

Frequency measurement from 5Hz to 1MHz

Selectable measurement rates

2 or 4 wires resistance measurements

dBm, %, MIN, MAX, HOLD, COMP functions

Dual display

RS-232 interface

 

GPIB version available (BK5482GPIB)

Specifications assumptions:

One-year calibration cycle. Operating temperature at 18 °C to 28°C (64.4°F to 82.4°F). Accuracy is expressed as: ± % of reading + digits) after 30 minutes warm-up. Temperature coefficient: Add ± [0. 15 x (the applicable accuracy)/°C] for 0°C to 18°C and 28°C to 50°C. Relative Humidity (RH) up to 80% for 0 °C to 28°C (75% RH for 12M  Ohm and above ranges of resistance measurement); up to 70% for 28°C to 35°C; up to 50% for 35°C to 50°C All specifications are specified under single display mode in operation only.

Display Counts and Reading Rates

Full Scale Display Counts

Reading Rates on Single Display (Readings/Sec)

Reading Rates on Dual Display (Readings/Sec)

Note 1: Above table shows some common combinations and applications of using dual display.

Note 2: Using RS-232 or GPIB remote interface, the reading rate approximates to normal mode.

DC Voltage

Resolution, Full Scale Reading and Accuracy

Maximum input voltage: 1000Vdc or peak ac on any range Response Time: Approximately 1.0 second when the displayed reading reaches 99.9% dc value of the tested input signal at the same range.

Note: When voltage (ac+dc) measurement function is selected, the Vdc input impedance is paralleled with an ac-coupled 1.1M Ohm ac divider.

Noise Rejection Ratio

AC Voltage (True RMS, AC Coupling Mode)

Resolution and Full Scale Reading

Accuracy

Measurement method: True RMS Maximum Crest Factor: 3.0 at full scale Maximum input voltage: 750V rms, 1100V peak ac
2x107 V-Hz product on any range, normal mode input
1x106 V-Hz product on any range, common mode input Input Impedance: 1M Ohm in parallel with capacitance <120pF Response Time: Approximately 1.5 seconds when the displayed reading reaches 99.9% ac rms value of the tested input signal at the same range.

AC Voltage (True RMS, AC+DC Coupling Mode)

Resolution and Full Scale Reading

Accuracy

Measurement method: True RMS AC+DC Maximum Crest Factor: 3.0 at full scale Maximum input voltage: 750V rms, 1100V peak ac
2x107 V-Hz product on any range, normal mode input
1x106 V-Hz product on any range, common mode input Input Impedance: 1M Ohm in parallel with capacitance <120pF Response Time: Approximately 2.5 seconds when the displayed reading reaches 99.9% (ac+dc) rms value of the tested input signal at the same range.

DC Current

Maximum Input and Overload Current Protection (for dc and ac current):
mA Input Terminal: 1200mA dc or ac rms and protected with 2A/250V, IEC-127 sheet 1 fast blow fuse;
12A input terminal: 10A dc or ac rms continuous, or 12A dc or ac rms for 30 seconds maximum and protected with 15A/500V, breaking capacity 10,000A fast blow fuse. Response Time: Approximately 1.0 second when the displayed reading reaches 99.9% dc value of the tested input signal at the same range.

AC Current (True RMS, AC Coupling Mode)

Resolution, Full Scale Reading and Burden Voltage

Accuracy

Measurement method: True RMS Maximum Crest Factor: 3.0 at full scale Response Time: Approximately 1.5 seconds when the displayed reading reaches 99.9% ac rms value of the tested input signal at the same range.

AC Current (True RMS, AC+DC Coupling Mode)

Resolution, Full Scale Reading and Burden Voltage

Accuracy

Measurement range: Vdc and Vac are automatically set at the same range Measurement method: True RMS AC+DC Maximum Crest Factor: 3.0 at full scale Response Time: Approximately 2.5 seconds when the displayed reading reaches 99.9% (ac+dc) rms value of the tested input signal at the same range.

Resistance (2-wire  Ohm and 4-wire  Ohm)

Open Circuit Voltage: < +5.0V dc Zeroing error: 0.05 Ohm or less (excluding test lead resistances) in each range when REL modifier is used Response time: Approximately 1.5 seconds for 12M Ohm and ranges below 12M Ohm; approximately 5 seconds for 40M Ohm range; approximately 10 seconds for 120M Ohm ; approximately 25 seconds for 300M Ohm range. Maximum Input Protection: 500V dc or ac rms

Diode Test/Continuity

Open Circuit Voltage: < +5.0V dc Test Current: Approximately 0.5mA dc Audible Tone: Continuous beep for continuity and single tone for normal forward-biased diode or semiconductor junction Continuity level: Approximately below +50mVdc Maximum Input Protection: 500V dc or ac rms

Resistance/Continuity (2-wire)

Open Circuit Voltage: < +5.0V dc Test Current: Approximately 0.5mA dc Audible Tone: Continuous beep for reading is less than 10 Ohm Zeroing error: 0.05 Ohm or less (excluding test lead resistances) in each range when REL modifier is used Maximum Input Protection: 500V dc or ac rms

Frequency

Resolution, Full Scale Reading and Accuracy

Measurement method: True RMS Maximum Crest Factor: 3.0 at full scale Maximum input voltage: 750V rms, 1100V peak ac
2x107 V-Hz product on any range, normal mode input
1x106 V-Hz product on any range, common mode input Input Impedance: 1M Ohm in parallel with capacitance <120pF Response Time: Approximately 1.2 seconds when the displayed reading reaches 99.9% frequency value of the tested input signal at the same range.

dBm (decibel calculation)

Reference Impedance (1)

Range and Accuracy

0dBm: 1 m Ohm @ 600 Ohm Reference Impedance Resolution: 0.01dB at slow and medium rate; 0.1dB at fast rate for all ranges. CMRR: > 90dB for dc signal Response Time: Same as ac voltage and ac current measurements.

A-3 General Specifications