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HDM3055 Series

 
5 1/2 reading multimeter with 1 μV high resolution; 30 kS/s high-speed sampling frequency, which makes it easy to capture transient signals; Two sets of input interfaces front and rear, which provides convenience to arrange wires; Standard with bar chart, histogram, trend chart and data statistics functions; Double-display measurement function, displaying voltage and frequency synchronously; A variety of measurement functions: DC voltage, AC voltage, DC current, AC current, 2-line resistance, 4-line resistance, capacitance, diode, connectivity, frequency, period, temperature; 4.3-inch color LCD screen; Simple operations, abundant measurement interfaces.
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  • 5 1/2 reading multimeter with 1 μV high resolution;
  • 30 kS/s high-speed sampling frequency, which makes it easy to capture transient signals;
  • Two sets of input interfaces front and rear, which provides convenience to arrange wires;
  • Standard with bar chart, histogram, trend chart and data statistics functions;
  • Double display measurement function, displaying voltage and frequency synchronously;
  • Ture RMS of AC voltage and true RMS of AC current measurements;
  • 0.1 μV resolution, simple operation, flexible parameter setting;
  • A variety of measurement functions: DC voltage, AC voltage, DC current, AC current, 2-line resistance, 4-line resistance, capacitance, diode, connectivity, frequency, period, temperature, with the current range reaching 10 A;
  • 4.3-inch color LCD screen;
  • Safety standard: CAT II 300 V;
  • Support SCPI remote control command, compatible with the mainstream multimeter command set in the market, standard with upper computer control software;
  • Configuration interfaces: USB Device, USB Host, LAN (HDM3055B), GPIB (HDM3055H).
A variety of measurement functions
4.3 inch 64K LCD;
Up to 30，000 rdgs/s reading;
DC voltage, AC voltage, DC current, AC current, 2-line resistance, 4-line resistance, capacitance, diode, connectivity, frequency, period, temperature, with the current range reaching 10 A.
Front and back 2 sets of multimeter input interface
True RMS AC voltage and AC current measure; Double display measurement function,display 2 kinds of signal parameters at the same time;
Support standard SCPI Remote control command、upper computer software.
Graph display , trenddrawing ,statistic
Support dual display, Chinese and English menu;
Double display measurement function,display 2 kinds of signal parameters at the same time.
Powerful Math statistic function
dB/dBm measurement;
1 μV high resolution;
Ture RMS of AC voltage and true RMS of AC current measurements;
Model HDM3055H HDM3055B HDM3055A HDM3055S HDM3055
Resolution bit 5 1/2 5 1/2 5 1/2 5 1/2 5 1/2
DCV basic precision  150 ppm 150 ppm 150 ppm 150 ppm 150 ppm
Maximum reading rate 30,000 rdgs/s 30,000 rdgs/s 30,000 rdgs/s 30,000 rdgs/s 30,000 rdgs/s
Memory 10,000 readings  10,000 readings  10,000 readings  10,000 readings  10,000 readings 
Double-display measurement function √ √ √ √ √
Statistical graph Histogram, bar graph,
 trend graph 		Histogram, bar graph,
 trend graph 		Histogram, bar graph,
 trend graph 		Histogram, bar graph,
 trend graph 		Histogram, bar graph,
 trend graph
Interface USB、RS232/485、LAN、GPIB USB、RS232/485、LAN USB、RS232/485 USB、RS232/485 USB、RS232/485
Input terminal Front-panel
Rear-panel 		Front-panel
Rear-panel 		Front-panel
Rear-panel 		Rear-panel Front-panel

DC precision technical index: ± (% reading + % range)
Range1/Frequency Test current or Load voltage Input impedance 1 year Temperature coefficient/°C 
23℃± 5 °C 0 ℃-18 ℃
DC voltage 28 ℃-55 ℃
100 mV — 10 MΩ or>10 GΩ 0.018 + 0.008 0.0020 + 0.0008
1 V — 10 MΩor>10 GΩ 0.015 + 0.005 0.0015 + 0.0008
10 V — 10 MΩ 0.015 +0.005 0.0020 + 0.0008
100 V — 10 MΩ 0.015 + 0.005 0.0020 + 0.0008
1000 V — 10 MΩ 0.015 + 0.005 0.0020 + 0.0008
resistance2 
100 Ω  1 mA — 0.050 + 0.008 0.0060 + 0.0008
1k Ω  1 mA — 0.050 + 0.008 0.0060 + 0.0005
10 kΩ  100 μA — 0.050 + 0.005 0.0060 + 0.0005
100 kΩ  10 μA — 0.050 + 0.005 0.0060 + 0.0005
1 MΩ  5 μA — 0.060 + 0.005 0.0060 + 0.0005
10 MΩ  500 nA — 0.250 + 0.005 0.0250 + 0.0005
100 MΩ  500 nA || 10 MΩ — 2.000 + 0.005 0.3000 + 0.0005
DC
100 μA  <0.02 V — 0.050 + 0.015 0.007 + 0.0015
1 mA  <0.2 V — 0.050 + 0.007 0.007 + 0.0010
10 mA  <0.02 V — 0.050 + 0.015 0.008 + 0.0015
100 mA  <0.2 V — 0.050 + 0.007 0.008 + 0.0010
1 A  <0.1 V — 0.100 + 0.015 0.012 + 0.0015
3 A  <0.3 V — 0.250 + 0.007 0.015 + 0.0010
10 A <0.02 V — 0.250 + 0.007 0.015 + 0.0010
Breakover3
1 kΩ 1 mA — 0.100 + 0.100 0.005 + 0.005
Diode test4
5 V 1 mA — 0.05 + 0.03 0.005 + 0.005
ACprecision technical index: ± (% reading + % range)
True RMS AC voltage 5,6 Test current or Load voltage Input impedance 1 year Temperature coefficient/°C 
23 ℃± 5 °C 0 ℃-18 ℃
28 ℃-55 ℃
100 mV Range
20 Hz-45 Hz — — 1.00 + 0.10 0.02 + 0.02
45 Hz-10 kHz — — 0.20 + 0.10 0.02 + 0.02
10 kHz-30 kHz — — 1.50 + 0.30 0.05 + 0.02
30 kHz-100 kHz7 — — 3.00 + 0.30 0.10 + 0.02
Range: 1 V, 10 V, 100 V and 750 V
20 Hz-45 Hz — — 1.00+0.108 0.02+0.02
45 kHz-10 kHz — — 0.20+0.10 0.02+0.02
10 kHz-30 kHz — — 1.50+0.30 0.05+0.02
30 kHz-100 kHz3 — — 3.00+0.309 0.10+0.02
True RMS AC current2
Range: 100 uA-10 A 
20Hz-45 Hz — — 1.50 + 0.10 0.02+0.02
45Hz-1 kHz — — 0.50 + 0.10 0.02+0.02
1 kHz-10 kHz10 — — 2.00 + 0.20 0.02+0.02
Frequency: technical index ±(% reading+3 counts) 
Frequency range11 : 100 mV,1 V,10 V,100 V and 750 V
20 Hz – 300 kHz12 — — 0.02+3 0.005
Frequency resolution Frequency Resolution
Range13: 100 mV,1 V,10 V,100 V and 750 V  119.999 Hz 0.001 Hz
1.19999 kHz 0.00001 kHz
11.9999 kHz 0.0001 kHz
119.999 kHz 0.001 kHz
1.00000 MHz 0.00001 MHz
Capacitance1 Test current or probe type Input impedance 1 year Temperature coefficient/°C 
23 ℃± 5 °C 0 ℃-18 ℃
28 ℃-55 ℃
1.000 nF 5 μA — 1. + 0.5 0.02 + 0.001
10.00 nF 5 μA — 1 + 0.5 0.02 + 0.001
100.0 nF 10 μA — 1 + 0.5 0.02 + 0.001
1.000 μF 100 μA — 1 + 0.5 0.02 + 0.001
10.000 μF 1 mA — 1 + 0.5 0.02 + 0.001
100.00 μF 1 mA — 1 + 0.5 0.02 + 0.001

Technical indicators are valid in the following cases: preheatingfor 90 minutes, setting integral time to 10 or 100NPLC, enabling automatic zero. The temperature for the calibration should be within 18℃-28℃.
1. Except for 1000DCV and 3A/10ADC, all ranges have a 20% overrange.
2. Technical indicatorsare suitable for 4-wire or 2-wire resistance measurement. However, if not pressing the “Null” key ahead of time to eliminate the offset, 2-wire resistance measurement will increase 0.2Ω additional error.
3. Continuous threshold value is fixed less than 10 Ω and only available in the fast measurement mode.
4. Technical indicatorsare only suitable for the voltage measured at the input terminal and only available in the fast measurement mode.
5. Except for 750VAC and ACI 3A/10A, all ranges have a 20% overrange.
6. If the measuring range is not 750 V, technical indicators are valid only if the input signal is a sinusoidal signal and the amplitude of it >5% of the current measuring range.
When adopting the 750 V range, the input signal must be greater than 50 Vrms.
7. When the input signal frequency > 30 kHz and the input signal amplitude < 10% of the current measuring range, an additional error will occur. If the frequency is 30 kHz ~ 100 kHz, each 1kHz will increase the additional error by 0.003%of the range.
8. Input < 200Vrms
9. Input < 300Vrms
10. The technical indicators are suitable when frequency < 5 kHz. The frequency which >= 5KHz is a typical value.
11. Frequencies up to 1 MHz can be measured when 0.5Vrms signal inputs at the 100 mV / 1 V gear.
12. Technical Indicatorsare suitable for all gearswheninput signal > 10% of the rangeexcept for specially specified gears. The technical indicators for 100 mV range can only be applied when the input signal is between 100 mV to 120 mV.When the input signal is between 10 mV and 100 mV, the indicator number should be multiplied by 10.
13. Frequency up to 1 MHz can be measured when 0.5Vrmssignal input is at the 100 mV / 1 V gear.

DC precision technical index: ± (% reading + % range)
Range1/Frequency Test current or Load voltage Input impedance 1 year Temperature coefficient/°C 
23℃± 5 °C 0 ℃-18 ℃
DC voltage 28 ℃-55 ℃
100 mV — 10 MΩ or>10 GΩ 0.018 + 0.008 0.0020 + 0.0008
1 V — 10 MΩor>10 GΩ 0.015 + 0.005 0.0015 + 0.0008
10 V — 10 MΩ 0.015 +0.005 0.0020 + 0.0008
100 V — 10 MΩ 0.015 + 0.005 0.0020 + 0.0008
1000 V — 10 MΩ 0.015 + 0.005 0.0020 + 0.0008
resistance2 
100 Ω  1 mA — 0.050 + 0.008 0.0060 + 0.0008
1k Ω  1 mA — 0.050 + 0.008 0.0060 + 0.0005
10 kΩ  100 μA — 0.050 + 0.005 0.0060 + 0.0005
100 kΩ  10 μA — 0.050 + 0.005 0.0060 + 0.0005
1 MΩ  5 μA — 0.060 + 0.005 0.0060 + 0.0005
10 MΩ  500 nA — 0.250 + 0.005 0.0250 + 0.0005
100 MΩ  500 nA || 10 MΩ — 2.000 + 0.005 0.3000 + 0.0005
DC
100 μA  <0.02 V — 0.050 + 0.015 0.007 + 0.0015
1 mA  <0.2 V — 0.050 + 0.007 0.007 + 0.0010
10 mA  <0.02 V — 0.050 + 0.015 0.008 + 0.0015
100 mA  <0.2 V — 0.050 + 0.007 0.008 + 0.0010
1 A  <0.1 V — 0.100 + 0.015 0.012 + 0.0015
3 A  <0.3 V — 0.250 + 0.007 0.015 + 0.0010
10 A <0.02 V — 0.250 + 0.007 0.015 + 0.0010
Breakover3
1 kΩ 1 mA — 0.100 + 0.100 0.005 + 0.005
Diode test4
5 V 1 mA — 0.05 + 0.03 0.005 + 0.005
ACprecision technical index: ± (% reading + % range)
True RMS AC voltage 5,6 Test current or Load voltage Input impedance 1 year Temperature coefficient/°C 
23 ℃± 5 °C 0 ℃-18 ℃
28 ℃-55 ℃
100 mV Range
20 Hz-45 Hz — — 1.00 + 0.10 0.02 + 0.02
45 Hz-10 kHz — — 0.20 + 0.10 0.02 + 0.02
10 kHz-30 kHz — — 1.50 + 0.30 0.05 + 0.02
30 kHz-100 kHz7 — — 3.00 + 0.30 0.10 + 0.02
Range: 1 V, 10 V, 100 V and 750 V
20 Hz-45 Hz — — 1.00+0.108 0.02+0.02
45 kHz-10 kHz — — 0.20+0.10 0.02+0.02
10 kHz-30 kHz — — 1.50+0.30 0.05+0.02
30 kHz-100 kHz3 — — 3.00+0.309 0.10+0.02
True RMS AC current2
Range: 100 uA-10 A 
20Hz-45 Hz — — 1.50 + 0.10 0.02+0.02
45Hz-1 kHz — — 0.50 + 0.10 0.02+0.02
1 kHz-10 kHz10 — — 2.00 + 0.20 0.02+0.02
Frequency: technical index ±(% reading+3 counts) 
Frequency range11 : 100 mV,1 V,10 V,100 V and 750 V
20 Hz – 300 kHz12 — — 0.02+3 0.005
Frequency resolution Frequency Resolution
Range13: 100 mV,1 V,10 V,100 V and 750 V  119.999 Hz 0.001 Hz
1.19999 kHz 0.00001 kHz
11.9999 kHz 0.0001 kHz
119.999 kHz 0.001 kHz
1.00000 MHz 0.00001 MHz
Capacitance1 Test current or probe type Input impedance 1 year Temperature coefficient/°C 
23 ℃± 5 °C 0 ℃-18 ℃
28 ℃-55 ℃
1.000 nF 5 μA — 1. + 0.5 0.02 + 0.001
10.00 nF 5 μA — 1 + 0.5 0.02 + 0.001
100.0 nF 10 μA — 1 + 0.5 0.02 + 0.001
1.000 μF 100 μA — 1 + 0.5 0.02 + 0.001
10.000 μF 1 mA — 1 + 0.5 0.02 + 0.001
100.00 μF 1 mA — 1 + 0.5 0.02 + 0.001
Technical indicators are valid in the following cases: preheatingfor 90 minutes, setting integral time to 10 or 100NPLC, enabling automatic zero. The temperature for the calibration should be within 18℃-28℃.
1. Except for 1000DCV and 3A/10ADC, all ranges have a 20% overrange.
2. Technical indicatorsare suitable for 4-wire or 2-wire resistance measurement. However, if not pressing the “Null” key ahead of time to eliminate the offset, 2-wire resistance measurement will increase 0.2Ω additional error.
3. Continuous threshold value is fixed less than 10 Ω and only available in the fast measurement mode.
4. Technical indicatorsare only suitable for the voltage measured at the input terminal and only available in the fast measurement mode.
5. Except for 750VAC and ACI 3A/10A, all ranges have a 20% overrange.
6. If the measuring range is not 750 V, technical indicators are valid only if the input signal is a sinusoidal signal and the amplitude of it >5% of the current measuring range.
When adopting the 750 V range, the input signal must be greater than 50 Vrms.
7. When the input signal frequency > 30 kHz and the input signal amplitude < 10% of the current measuring range, an additional error will occur. If the frequency is 30 kHz ~ 100 kHz, each 1kHz will increase the additional error by 0.003%of the range.
8. Input < 200Vrms
9. Input < 300Vrms
10. The technical indicators are suitable when frequency < 5 kHz. The frequency which >= 5KHz is a typical value.
11. Frequencies up to 1 MHz can be measured when 0.5Vrms signal inputs at the 100 mV / 1 V gear.
12. Technical Indicatorsare suitable for all gearswheninput signal > 10% of the rangeexcept for specially specified gears. The technical indicators for 100 mV range can only be applied when the input signal is between 100 mV to 120 mV.When the input signal is between 10 mV and 100 mV, the indicator number should be multiplied by 10.
13. Frequency up to 1 MHz can be measured when 0.5Vrmssignal input is at the 100 mV / 1 V gear.


【Tip: up to 4 products can be compared】
Select Series Number of Digits Max reading rate I/O interface DC Voltage Accuracy in a Year
HDM3065 Series
 		6 1/2 30, 000readings/s USB, RS232/485
LAN, GPIB		 35 ppm
HDM3055 Series
 		5 1/2 30, 000 readings/s USB, RS232/485
LAN, GPIB		 150 ppm
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