BM197 Clamp Meter 2000A AC / DC TRMS, VFD, USB, CAT IV 1000V
BM197 Clamp Meter 2000A AC / DC TRMS, VFD, USB, CAT IV 1000V

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Manufacturer: Brymen Technology Corporation

BM197 Clamp Meter 2000A AC / DC TRMS, VFD, USB, CAT IV 1000V

BM197 Clamp meter 2000A AC/DC TRMS,VFD,USB, CAT IV 1000V

Technical Data
Special Features and Special Functions
  • Clamp-on measurement:
    • Maximum cable diameter:
      • 55mm
  • True RMS - True RMS measurement
  • Automatic/manual measurement range switching
  • Temperature measurement
  • DATA HOLD - freezes the current measurement result on the display
  • Hz - simultaneous display of frequency and measured voltage or current
    • - on a dual display
  • RELATIVE ZERO - differential measurement from the measured value
  • CREST: recording of MAX and MIN peak pulse values:
    • ongoing >5ms, V and A only
  • EF: Non-contact electric field (voltage) detection
  • Safe measurements in Cat. IV
  • Diode and continuity tests (with audible signal)
  • PC communication via RS-232 optical port
  • PC communication via USB interface
  • VFD (ACV[&]Hz) - simultaneous measurement of inverter voltage and frequency
  • Lo-Z - low-impedance voltage measurements (interference elimination)
  • AutoCheck - automatic selection of measurement type (Lo-Z DCV, ACV,
    resistance) depending on the input signal


Measurements and Accuracy
  • Temperature Coefficient:
    • Nominal 0.15 x (specified accuracy)/°C
      (-10°C to 18°C ​​or 28°C to 55°C)
  • Accuracy:
    • +- (% of the displayed value + number of least significant digits), unless otherwise specified,
      for a temperature of 23°C +- 5° and RH < 75%
 Continuity Test
Min. Detection Range R [Ω] Max. Detection Range R [Ω] DC Peak Protection [V] Protection ACrms [V]
10 200 1000 1000

Response time:
  • < 32ms


DCV - constant voltage
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Input imp. [Ω] Input imp. [F] DCpeak [V] protection ACrms protection [V]
6 0.001 0.5 5 10M 50p 1000 1000
  • The input impedance increases above 50V and is: 10kΩ for 100V, 60kΩ for 300V, 200kΩ for 600V, 420kΩ for 1000V.
  • The LoZ DCV input impedance is initially approximately 2.5kΩ, 600pF nominal.
  • DCV threshold impedance >+1.5VDC or < -1.5VDC


ACV - Alternating Voltage
5 1000
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Min. Frequency [Hz] Max. Frequency [Hz] Input Impedance [Ω] Input Impedance [F] DC Peak Protection [V] DC Peak Protection ACrms [V]
6 0.001 1,2 5 50 400 10M 50p 1000 1000
60 0.01 1,2 5 50 400 10M 50p 1000 1000
600 0.1 1,2 5 50 400 10M 50p 1000 1000
1000 1 1,2 5 50 400 10M 50p 1000 1000
6 (Autocheck) 0.001 1.5 5 50 60 2.5k 600p 1000 1000
60 (Autocheck) 0.01 1.5 50 60 2.5k 600p 1000 1000
60 (Autocheck) 0.01 1.5 5 50 60 2.5k 600p 1000 1000
600 (Autocheck) 0.1 1.5 5 50 60 2.5k 600p 1000 1000
1000 (Autocheck) 1 1.5 5 50 60 2.5k 600p 1000 1000
6 (VFD) 0.001 4 80 10 20 – – 1000 1000
60 (VFD) 0.01 4 80 10 20 – – 1000 1000
600 (VFD) 0.1 4 80 10 20 – – 1000 1000
1000 (VFD) 1 4 80 10 20 – – 1000 1000
6 (VFD) 0.001 2 60 20 200 – – 1000 1000
60 (VFD) 0.01 2 60 20 200 – – 1000 1000
600 (VFD) 0.1 2 60 20 200 – – 1000 1000
1000 (VFD) 1 2 60 20 200 – – 1000 1000
6 (VFD) 0.001 7 80 200 400 – – 1000 1000
60 (VFD) 0.01 7 80 200 400 – – 1000
600 (VFD) 0.1 7 80 200 400 – – 1000 1000
1000 (VFD) 1 7 80 200 400 – – 1000 1000
  • Crest Factor:
    • CF < 2.8:1 at full scale
    • CF < 1.4:1 at mid-scale
  • In VFD_ACV mode, accuracy drops from 2% + 50d at 200Hz to 7% + 80d at 400Hz.
  • In AutoCheck mode, the input impedance increases above 50V and is: 10kΩ for 100V, 60kΩ for 300V, 200kΩ for 600V, 420kΩ for 1000V.
  • The LoZ ACV input impedance in AutoCheck mode is initially approximately 2.5kΩ, 600pF nominal.
  • LoZ ACV impedance threshold > 1.5V (50/60Hz)
  • TrueRMS


DCV+ACV Voltage
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Min. Frequency [Hz] Max. Frequency [Hz] Input Impedance [Ω] Input Impedance [F] DC Peak Protection [V] DC Peak Protection ACrms [V]
6 0.001 1.4 7 50 400 10M 50p 1000 1000
60 0.01 1.4 7 50 400 10M 50p 1000 1000
600 0.1 1.4 7 50 400 10M 50p 1000 1000
1000 1 1.4 7 50 400 10M 50p 1000 1000
  • Crest factor:
    • CF < 2.8:1 half scale
    • CF < 1.4:1 full scale
  • TrueRMS


DCA - Direct Current
5
Range [A] Resolution [A] Accuracy [%] [digit] accuracy Fuse [A]
200 0.1 2.0 2000
0~500 1 2.0 5 2000
500~2000 1 3.0 5 2000
  • Additional error in the presence of current-carrying conductors near the clamps
  • DCA current clamp measurement
  • Accuracy determined in relative measurement mode, after zeroing the reading for a current-free state.


ACA - alternating current
1 1000~2000
Range [A] Resolution [A] Accuracy [%] Accuracy [digits] Min. frequency [Hz] Max. frequency [Hz] Fuse [A]
200 0.1 2.5 5 40 50 2000
0~500 1 3.0 5 40 50 2000
500~1000 1 3.5 5 40 50 2000
1000~2000 1 – – 40 50 2000
200 0.1 2.0 5 50 60 2000
0~500 1 2.5 5 50 60 2000
500~2000 3.0 5 50 60 2000
200 0.1 2.5 5 60 400 2000
0~500 1 3.0 5 60 400 2000
500~1000 1 3.5 5 60 400 2000
1 – – 60 400 2000
  • ACA Current Clamp Measurement
  • Additional error in the presence of current-carrying conductors near the clamps < 0.1A/A
  • TrueRMS
  • Crest Factor:
    • CF
    • CF


DCA+ACA Current
Range [A] Resolution [A] Accuracy [%] Accuracy [digits] Min. frequency [Hz] Max. frequency [Hz]
200 0.1 3.5 8 40 50
0~1000 1 3.5 8 40 50
1000~2000 1 – – 40 50
200 0.1 3.0 8 50 60
2000 1 3.0 8 50 60
200 0.1 3.5 8 60 400
0~1000 1 3.5 8 60 400
1000~200 1 – – 60 400
      • Crest Factor:
        • CF < 2.8:1 half scale
        • CF < 1.4:1 at full scale
      • Clamp current measurement DCA+ACA
      • Accuracy determined in relative measurement mode, after zeroing the reading for a current-free state.
      • Additional error in the presence of current-carrying conductors near the clamps
      • TrueRMS


Resistance
Range [Ω] Resolution [Ω] Accuracy [%] Accuracy [digits] Open Circuit Voltage [V] DC Peak Protection [V] ACrms Protection [V]
600 0.1 0.5 5 0.45 1000 1000
6k 0.001k 0.5 5 0.45 1000 1000
60k 0.01k
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BM197 Clamp meter 2000A AC/DC TRMS,VFD,USB, CAT IV 1000V

Technical Data
Special Features and Special Functions
  • Clamp-on measurement:
    • Maximum cable diameter:
      • 55mm
  • True RMS - True RMS measurement
  • Automatic/manual measurement range switching
  • Temperature measurement
  • DATA HOLD - freezes the current measurement result on the display
  • Hz - simultaneous display of frequency and measured voltage or current
    • - on a dual display
  • RELATIVE ZERO - differential measurement from the measured value
  • CREST: recording of MAX and MIN peak pulse values:
    • ongoing >5ms, V and A only
  • EF: Non-contact electric field (voltage) detection
  • Safe measurements in Cat. IV
  • Diode and continuity tests (with audible signal)
  • PC communication via RS-232 optical port
  • PC communication via USB interface
  • VFD (ACV[&]Hz) - simultaneous measurement of inverter voltage and frequency
  • Lo-Z - low-impedance voltage measurements (interference elimination)
  • AutoCheck - automatic selection of measurement type (Lo-Z DCV, ACV,
    resistance) depending on the input signal


Measurements and Accuracy
  • Temperature Coefficient:
    • Nominal 0.15 x (specified accuracy)/°C
      (-10°C to 18°C ​​or 28°C to 55°C)
  • Accuracy:
    • +- (% of the displayed value + number of least significant digits), unless otherwise specified,
      for a temperature of 23°C +- 5° and RH < 75%
 Continuity Test
Min. Detection Range R [Ω] Max. Detection Range R [Ω] DC Peak Protection [V] Protection ACrms [V]
10 200 1000 1000

Response time:
  • < 32ms


DCV - constant voltage
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Input imp. [Ω] Input imp. [F] DCpeak [V] protection ACrms protection [V]
6 0.001 0.5 5 10M 50p 1000 1000
  • The input impedance increases above 50V and is: 10kΩ for 100V, 60kΩ for 300V, 200kΩ for 600V, 420kΩ for 1000V.
  • The LoZ DCV input impedance is initially approximately 2.5kΩ, 600pF nominal.
  • DCV threshold impedance >+1.5VDC or < -1.5VDC


ACV - Alternating Voltage
5 1000
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Min. Frequency [Hz] Max. Frequency [Hz] Input Impedance [Ω] Input Impedance [F] DC Peak Protection [V] DC Peak Protection ACrms [V]
6 0.001 1,2 5 50 400 10M 50p 1000 1000
60 0.01 1,2 5 50 400 10M 50p 1000 1000
600 0.1 1,2 5 50 400 10M 50p 1000 1000
1000 1 1,2 5 50 400 10M 50p 1000 1000
6 (Autocheck) 0.001 1.5 5 50 60 2.5k 600p 1000 1000
60 (Autocheck) 0.01 1.5 50 60 2.5k 600p 1000 1000
60 (Autocheck) 0.01 1.5 5 50 60 2.5k 600p 1000 1000
600 (Autocheck) 0.1 1.5 5 50 60 2.5k 600p 1000 1000
1000 (Autocheck) 1 1.5 5 50 60 2.5k 600p 1000 1000
6 (VFD) 0.001 4 80 10 20 – – 1000 1000
60 (VFD) 0.01 4 80 10 20 – – 1000 1000
600 (VFD) 0.1 4 80 10 20 – – 1000 1000
1000 (VFD) 1 4 80 10 20 – – 1000 1000
6 (VFD) 0.001 2 60 20 200 – – 1000 1000
60 (VFD) 0.01 2 60 20 200 – – 1000 1000
600 (VFD) 0.1 2 60 20 200 – – 1000 1000
1000 (VFD) 1 2 60 20 200 – – 1000 1000
6 (VFD) 0.001 7 80 200 400 – – 1000 1000
60 (VFD) 0.01 7 80 200 400 – – 1000
600 (VFD) 0.1 7 80 200 400 – – 1000 1000
1000 (VFD) 1 7 80 200 400 – – 1000 1000
  • Crest Factor:
    • CF < 2.8:1 at full scale
    • CF < 1.4:1 at mid-scale
  • In VFD_ACV mode, accuracy drops from 2% + 50d at 200Hz to 7% + 80d at 400Hz.
  • In AutoCheck mode, the input impedance increases above 50V and is: 10kΩ for 100V, 60kΩ for 300V, 200kΩ for 600V, 420kΩ for 1000V.
  • The LoZ ACV input impedance in AutoCheck mode is initially approximately 2.5kΩ, 600pF nominal.
  • LoZ ACV impedance threshold > 1.5V (50/60Hz)
  • TrueRMS


DCV+ACV Voltage
Range [V] Resolution [V] Accuracy [%] Accuracy [digits] Min. Frequency [Hz] Max. Frequency [Hz] Input Impedance [Ω] Input Impedance [F] DC Peak Protection [V] DC Peak Protection ACrms [V]
6 0.001 1.4 7 50 400 10M 50p 1000 1000
60 0.01 1.4 7 50 400 10M 50p 1000 1000
600 0.1 1.4 7 50 400 10M 50p 1000 1000
1000 1 1.4 7 50 400 10M 50p 1000 1000
  • Crest factor:
    • CF < 2.8:1 half scale
    • CF < 1.4:1 full scale
  • TrueRMS


DCA - Direct Current
5
Range [A] Resolution [A] Accuracy [%] [digit] accuracy Fuse [A]
200 0.1 2.0 2000
0~500 1 2.0 5 2000
500~2000 1 3.0 5 2000
  • Additional error in the presence of current-carrying conductors near the clamps
  • DCA current clamp measurement
  • Accuracy determined in relative measurement mode, after zeroing the reading for a current-free state.


ACA - alternating current
1 1000~2000
Range [A] Resolution [A] Accuracy [%] Accuracy [digits] Min. frequency [Hz] Max. frequency [Hz] Fuse [A]
200 0.1 2.5 5 40 50 2000
0~500 1 3.0 5 40 50 2000
500~1000 1 3.5 5 40 50 2000
1000~2000 1 – – 40 50 2000
200 0.1 2.0 5 50 60 2000
0~500 1 2.5 5 50 60 2000
500~2000 3.0 5 50 60 2000
200 0.1 2.5 5 60 400 2000
0~500 1 3.0 5 60 400 2000
500~1000 1 3.5 5 60 400 2000
1 – – 60 400 2000
  • ACA Current Clamp Measurement
  • Additional error in the presence of current-carrying conductors near the clamps < 0.1A/A
  • TrueRMS
  • Crest Factor:
    • CF
    • CF


DCA+ACA Current
Range [A] Resolution [A] Accuracy [%] Accuracy [digits] Min. frequency [Hz] Max. frequency [Hz]
200 0.1 3.5 8 40 50
0~1000 1 3.5 8 40 50
1000~2000 1 – – 40 50
200 0.1 3.0 8 50 60
2000 1 3.0 8 50 60
200 0.1 3.5 8 60 400
0~1000 1 3.5 8 60 400
1000~200 1 – – 60 400
      • Crest Factor:
        • CF < 2.8:1 half scale
        • CF < 1.4:1 at full scale
      • Clamp current measurement DCA+ACA
      • Accuracy determined in relative measurement mode, after zeroing the reading for a current-free state.
      • Additional error in the presence of current-carrying conductors near the clamps
      • TrueRMS


Resistance
Range [Ω] Resolution [Ω] Accuracy [%] Accuracy [digits] Open Circuit Voltage [V] DC Peak Protection [V] ACrms Protection [V]
600 0.1 0.5 5 0.45 1000 1000
6k 0.001k 0.5 5 0.45 1000 1000
60k 0.01k
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