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BK5491A台式万用表
BK5491A台式万用表
订货号: MM-24960-00
产地: 法国
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开发编号: N
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产品描述:

50000-count multimeter
Basic accuracy 0.02% for VDC
Voltage measurement up to 1000V DC, 750V AC
Current measurement up to 10A
True RMS AC, AC+DC
Resistance measurement up to 50Mohms
Frequency meter up to 500 KHz
dBm, %, MIN, MAX, HOLD, COMP functions
Selectable measurement rates
Dual display
RS-232 interface
 
DC Voltage
Resolution, Full Scale Reading and Accuracy
Range
Resolution
Full Scale Reading
Accuracy
(1 year)
Typical Input Impedance (2)
500mV
5V
50V 500V
1000V
10µV
100µV
1mV
10mV
100mV
510.00
5.1000
51.000
510.00
1200.0 (1)
0.02% + 4
0.02% + 4
0.02% + 4
0.02% + 4
0.02% + 4
10.0MΩ
11.1MΩ
10.1MΩ
10.0MΩ
10.0MΩ
(1) In 1000V range, 1200V is readable with audio warning.
(2) Input Impedance is in paralleled with capacitance <100pF.
* Maximum input voltage: 1200Vdc 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 is selected, the Vdc input impedance is paralleled with an ac-coupled 1.1MΩ ac divider.
 
Noise Rejection Ratio
CMRR (1)
NMRR (2)
>90dB at dc, 50/60Hz ± 0.1%
(1kΩ Unbalanced)
>50dB at 50/60Hz ± 0.1%
(1) CMRR is the Common Mode Reject Ratio
(2) NMRR is the Normal Mode Rejection Ratio

 
AC Voltage (True RMS, AC Coupling)
Resolution, Full Scale Reading and Accuracy
Range
Resolution
Full Scale Reading
Accuracy (1 year) (1)
30 to 50 Hz
50 to 10k Hz
10k to 30k Hz
30k to 100k Hz
500mV
5V
50V
500V
750V
10µV
100µV
1mV
10mV
100mV
510.00
5.1000
51.000
510.00
1000.0 (1)
1% + 40
1% + 20
1% + 20
Not specified
Not Specified
0.5% + 40
0.35% + 15
0.35% + 15
0.5% + 15
0.5% + 15 (4)
2% + 60
1% + 20
1% + 20
1% + 20 (3)
1% + 20 (3)
3% + 120
3% + 50
3% + 50
3% + 50 (3)
Not Specified
(1) In 750V range, 1000.0V is readable with audio warning.
(2) Accuracy specified at input >5% of Range.
(3) Input Voltage < 200V rms.
(4) For 5k ~ 10k Hz, the accuracy is 0.7% + 15.
* Measurment method: true RMS
* Maximum Crest Factor: 3.0 at full scale
* Maximum input voltage: 1000V rms, 1400V peak ac
2x107 V-Hz product on any range, normal mode input
1x106 V-Hz product on any range, common mode input
* Input Impedance: 1MΩ in parallel with capacitance <100pF
* 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.
 
 
 
 
 
 
 
 
 
DC Current
Resolution, Full Scale Reading and Accuracy
Range
Resolution
Full Scale Reading
Accuracy (1 year)
Burden Voltage(1)
& Shunt Resistor
500µA
5mA
50mA 500mA
5A
10A
10nA
100nA
1µA
10µA
100µA
1mA
510.00
5.1000
51.000
510.00
5.1000
20.000 (2)
0.05% + 5
0.05% + 4
0.05% + 4
0.05% + 4
0.25% + 5
0.25% + 5
<0.06V / 100Ω
<0.6V / 100Ω
<0.08V / 1Ω
<0.8V / 1Ω
<0.3V / 0.01Ω
<0.6V / 0.01Ω
(1) Typical at full scale reading and voltage across the input terminals.
(2) In 10A range, >10~20Adc is readable for 20 seconds maximum with audio warning.
* 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)
Resolution, Full Scale Reading and Burden Voltage
Range
Resolu-tion
Full Scale Reading
Accuracy(1 year) (5)
Burden Voltage (1) &Shunt Resistor
30 to
50 Hz
50 to
2k Hz
2k to
5k Hz
5k to
20k Hz
500µA
5mA
50mA
500mA
10nA
100nA
1µA
10µA
510.00
5.1000
51.000
510.00
1.5% + 50
1.5% + 40
1.5% + 40
1.5% + 40
0.5% + 20
0.5% + 20
0.5% + 20
0.5% + 20
1.5% + 50
1.5% + 40
1.5% + 40
1.5% + 40
3% + 75(4)
3% + 60
3% + 60
3% + 60
<0.06V / 100Ω
<0.6V / 100Ω
<0.08V / 1Ω
<0.8V / 1Ω
5A
10A
100µA
1mA
5.1000
20.000(2)
2% + 40(3)
2% + 40(3)
0.5% + 30
(<1kHz)
Not Specified
<0.3V / 0.01Ω
<0.6V / 0.01Ω
(1) Typical at full scale reading and voltage across the input terminals
(2) In 10A range, >10~20Aac is readable for 20 seconds maximum with audio warning.
(3) Input Current < 3 Arms.
(4) Input Current > 35µArms.
(5) Accuracy specified at input >5% of range and >1A for 10A range except other specified.
* 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 Voltage (True RMS, AC+DC Coupling)
Resolution, Full Scale Reading and Accuracy
Range
Resolution
Full Scale Reading
Accuracy (1 year) (2)
50 to 10k Hz
10k to 30k Hz
30k to 100k Hz
500mV
5V
50V
500V
750V
10µV
100µV
1mV
10mV
100mV
510.00
5.1000
51.000
510.00
1000.0 (1)
0.5% + 50
0.5% + 25
0.5% + 25
0.5% + 25
0.5% + 25 (4)
2% + 70
1% + 30
1% + 30
1% + 30 (3)
1% + 30 (3)
3% + 130
3% + 60
3% + 60
3% + 60 (3)
Not Specified
(1) In 750V range, 1000.0V is readable with audio warning.
(2) Accuracy specified at input >5% of range.
(3) Input Voltage < 200V rms.  (4) For 5k~10k Hz, the accuracy is 0.7% + 25.
* Measurement method: True RMS
* Maximum Crest Factor: 3.0 at full scale
* Maximum input voltage: 1000V rms, 1400V peak ac
                                          2x107 V-Hz product on any range, normal mode input
                                          1x106 V-Hz product on any range, common mode input
* Input Impedance: 1MΩ in parallel with capacitance <100pF
* 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)
Resolution, Full Scale Reading and Burden Voltage
Range
Resolution
Full Scale Reading
Accuracy (1 year) (4)
Burden Voltage (1)
&Shunt Resistor
50 to 2k Hz
2k to 5k Hz
5k to 20k Hz
500µA
5mA
50mA
500mA
10nA
100nA
1µA
10µA
510.00
5.1000
51.000
510.00
0.5% + 30
0.5% + 30
0.5% + 30
0.5% + 30
1.5% + 60
1.5% + 50
1.5% + 50
1.5% + 50
3% + 85(3)
3% + 70
3% + 70
3% + 70
<0.06V / 100Ω
<0.6V / 100Ω
<0.08V / 1Ω
<0.8V / 1Ω
5A
10A
100µA
1mA
5.1000
20.000 (2)
0.5% + 40
(<1kHz)
Not Specified
<0.3V / 0.01Ω
<0.6V / 0.01Ω
(1) Typical at full scale reading and voltage across the input terminals
(2) In 10A range, >10~20A is readable for 20 seconds maximum with audio warning.
(3) Input Current > 35µArms.
(4) Accuracy specified at input >5% of range and >1A for 10A range except other specified.
* 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.
 
 
 
 
 
 
 
 
 
Resistance/Continuity
Resolution, Full Scale Reading, Test Reading and Accuracy
Range (1)
Resolution
Full Scale Reading
Test Current
Accuracy (1 year)
500Ω
5kΩ
50kΩ
500kΩ
5MΩ
50MΩ
10mΩ
100mΩ
10Ω
100Ω
1KΩ
510.00
5.1000
51.000
510.00
5.1000
51.000
0.5mA
0.45mA
45µA
4.5µA
450nA
45nA
0.1% + 5 (2)
0.1% + 3 (2)
0.1% + 3
0.1% + 3
0.1% + 3
0.3% + 3
(1) In order to eliminate the noise interference, which might be induced to the test leads, it is recommended to use a shielded test cable for measuring resistance above 500KΩ.
(2) Use relative (REL) modifier.
* Open Circuit Voltage: +6.0V dc approx.
* Audible Tone: Continuous beep for reading less than 1000 counts
* Zeroing error: 0.05Ω or less (excluding test lead resistances) in each range when REL modifier is used
* Response Time: Approximately 1.5 seconds for 5MΩ and ranges below 5MΩ; approximately 5 seconds for 50MΩ range.
* Maximum Input Protection: 500V dc or ac rms
 
 
 
 
 
 

 
Diode Test/Continuity
Resolution, Full Scale Reading and Accuracy
Range
Resolution
Full Scale Reading
Accuracy
2.3V
100µV
2.3000V
0.05% + 5
* Open Circuit Voltage / Test Current: +6.0V dc / 0.5mA approx.
* 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
 
Frequency
Resolution, Full Scale Reading and Accuracy
Range
Measuring Range
Resolution
Full Scale Reading
Accuracy (1 year)
500 Hz
5Hz~ 500Hz
0.01 Hz
510.00
0.01 + 5
5kHz
500Hz~ 5kHz
0.1 Hz
5.1000
0.01 + 3
50kHz
5kHz~ 50kHz
1 Hz
51.000
0.01 + 3
500kHz
50kHz~ 500kHz
10 Hz
999.99
0.01 + 3
* Response Time: Approximately 1 second when the displayed reading reaches 99.9% of frequency value.
 
 
 
 
 
 
 
Sensitivity for Voltage Measurement
Input Range
Minimum Sensitivity (RMS Sine-wave)
5Hz ~ 100kHz
100kHz ~ 500kHz
500mV
35mV
200mV
5V
0.25V
0.5V
50V
2.5V
5V
500V
25V
NO SPEC.
750V
50V
NO SPEC.
* Maximum input V-Hz and Input Impedance, please refer to AC Voltage measurement.
 
Sensitivity for Current Measurement
Input Range
Minimum Sensitivity (RMS Sine-wave)
30Hz ~ 20kHz
500µA
35µA
5mA
0.25mA
50mA
2.5mA
500mA
25mA
5A
0.25A (<2kHz)
10A
2.5A (<2kHz)
* Maximum input, please refer to AC Current measurement.

 
· dBm (decibel calculation)
Reference Impedance (1)
16Ω
50Ω
75Ω
93Ω
110Ω
124Ω
125Ω
135Ω
150Ω
250Ω
300Ω
500Ω
600Ω (2)
800Ω
900Ω
1000Ω
1200Ω
8000Ω
(1) Reference impedance is selectable at setup mode or during measurement. Please refer to the chapter for related operation.
(2) Default reference impedance
 
 
 
 
 
Range and Accuracy
Voltage
Range (1,2)
Input Voltage
dBm (3) Range
@ 600Ω Ref
Accuracy (dB)
30 to 50 Hz
50 to 10k Hz
10k to 100k Hz
500mV
5V
50V
500V
25mV ~ 500mV
500mV ~ 5V
5V ~ 50V
50V ~ 500V
-29.82 ~ -3.80
-3.80 ~ 16.20
16.20 ~ 36.20
36.20 ~ 56.20
0.3
0.2
0.2
0.2 (5)
0.3
0.2
0.2
0.2
0.7
0.5
0.5
0.5 (5)
1000V (dc)
750V (ac)
500V ~ 1000V
500V ~ 750V
56.20 ~ 62.22
56.20 ~ 59.72
Not
Specified
0.2 (4)
Not
Specified
(1) Auto-ranging is used when dBm function is selected
(2) In Vdc 1200V range and Vac 1000V are readable
(3) Reading displayed in dB when REL modifier is used
(4) For input voltage at frequency between 50Hz to 1kHz
(5) Input Voltage <200V rms
* 0dBm: 1mW @ 600Ω Reference Impedance
* Resolution: 0.01dB for all ranges.
* CMRR: >90dB for dc signal
* Response Time: Same as dc, ac or ac+dc voltage measurements.

 
A-3 General Specifications
General Items
Specifications
Warm up time
At least 30 minutes
Temperature Coefficient
Add 0.15 x (the applicable accuracy)/°C at 0°C to 18°C and
28°C to 50°C
Operating Temperature
0°C to 50°C (32°F to 122°F)
Storage Temperature
-20°C to 60°C
Altitude
Up to 2000 M
Pollution Degree
II
Over-voltage category
CAT III- 600V and CAT II-1000V
Relative Humidity
Up to 80% (60% for 50MΩ range or resistance measurement)
Common Mode Voltage
1000V dc or peak ac rms maximum between any input and
earth ground
Dimension
Approx. 255(w) x 105(h) x 305(d) mm (with holsters)
Weight
<3.0kgs
Line Voltage
100V / 120V / 220V / 240V ac ± 10%, 50/60Hz, 16VA maximum
Interface
· RS-232 (DB-9, male connector)
· Baud rates: 9600, 4800, 2400, 1200, 600, 300
· Data length: 7 or 8 bits
· Parity: even / odd / none
· Stop bit: 1 or 2 bits
· Echo: on / off
· Print mode: on / off
Safety Requirement
Designed in Compliance with EN61010-1 (IEC1010-1)
Installation Category
CAT-II 750VAC/1000VDC or CAT-III 600V, Pollution Degree II
 


品牌简介

Sefram为B+K Precision集团旗下品牌之一,公司设立于法国,创建于1947年,拥有60年的丰富经验与高度信誉。Sefram专致于记录仪及电视信号分析仪器的生产与研究,产品于欧美拥…Sefram为B+K Precision集团旗下品牌之一,公司设立于法国,创建于1947年,拥有60年的丰富经验与高度信誉。Sefram专致于记录仪及电视信号分析仪器的生产与研究,产品于欧美拥有极高的声誉,Sefram将以卓越的技术为您提供最精准的测量与分析。

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