Instruhub

Measurement Function

Specification

DC voltage (V dc)

Maximum voltage with 10:1 or 100:1 probe

1000 V

Maximum resolution with 10:1 or 100:1 probe (voltage to ground)

1mV / 10mV

Full scale reading

999 counts

Accuracy at 4 s to 10 us/div

± (1.5 % + 6 counts)

True-rms voltage (V ac or V ac + dc) (with DC coupling selected)

Maximum voltage with 10:1 or 100:1 probe (voltage to ground)

1000 V

Maximum resolution with 10:1 or 100:1 probe

1 mv / 10 mV

Full scale reading

999 counts

DC to 60 Hz

± (1.5 % + 10 counts)

60 Hz to 20 kHz

± (2.5 % + 15 counts)

20 kHz to 1 MHz

± (5 % + 20 counts)

1 MHz to 25 MHz

± (10 % + 20 counts)

PWM voltage (V pwm)

Purpose

To measure on pulse width modulated signals, like motor drive inverter outputs

Principle

Readings show the effective voltage based on the average value of samples over a whole number of periods of the fundamental frequency

Accuracy

As Vac+dc for sinewave signals

Peak voltage (V peak)

Modes

Max peak, min peak, or pk-to-pk

Maximum voltage with 10:1 or 100:1 probe (voltage to ground)

1000 V

Maximum resolution with 10:1 or 100:1 probe

10 mV

Accuracy

Max peak, min peak

± 0.2 division

Pk-to-pk

± 0.4 division

Full scale reading

800 counts

Current (AMP) with current clamp

Ranges

Same as V ac, Vac+dc or V peak

Scale Factors

0.1 mV/A, 1 mV/A, 10 mV/A, 20 mV/A, 50mV/A, 100 mV/A, 200 mV/A, 400 mV/A

Accuracy

Same as Vac, Vac+dc or V peak (add current clamp accuracy)

Display and acquisition

Display

133 mm x 90 mm (5.3 in x 3.5 in) full-color high brightness LCD

Display modes

Any combination of channels; average on/off; replay.

Visible screen width

12  divisions horizontally in scope mode

Digital persistence modes

Off, short, medium, long, infinite and envelope mode

Waveform mathematics

One (190-xx2) or two (190-x04) mathematical operations on 2 input channels (A and B, C and D): add, subtract, multiply; X-Y-mode; Frequency Spectrum using FFT

Acquisition modes

Normal, Averaged, Auto, Single Shot, ScopeRecord™ roll, glitch capture, waveform compare with automatic “Pass/Fail testing”; Replay

Trigger and delay

Source

Input A, B or External (via meter input)

Input A, B, C or  D

Modes

Automatic, Edge, Pulse Width, N-Cycle, External (190-xx2)

Connect-and- View™

Advanced automatic triggering that recognizes signal patterns, automatically sets up and continuously adjusts  triggering, time base and amplitude. Automatically displays stable waveforms of complex and dynamic signals like motor drive and control signals. Can be switched off if preferred.

Pulse width triggering (on channel A)

Pulse width qualified by time
Allows for triggering t, =t, ≠ t, where t is selectable in minimum steps of 0.01 div or 50 ns

Time delay

1 full screen of pre-trigger view or up to 100 screens (=1,200 divisions) of post-trigger delay

Dual slope triggering

Triggers on both rising and falling edges alike

N-cycle triggering

Triggers on N-th occurrence of a trigger event; N to be set in the range 2 to 99

Replay

Manual or continuous replay. Displays the captured 100 screens as a “live” animation, or under manual control. Each screen has date and time-stamp.

Replay storage

Ten sets of 100 screens each can be saved internally for later recall and analysis. Direct storage of additional sets on external flash memory drive through USB host port.

·        Oscilloscope mode

Vertical

Frequency response - dc coupled

Without probes and test leads (with BB120)

123B: dc to 20 MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)

With STL120-IV 1:1 shielded test leads

DC to 12.5 MHz (-3 dB) / dc to 20 MHz (-6 dB)

With VP41 10:1 Probe

123B: dc to 20MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)

Frequency response - ac coupled (lf roll off)

Without probes and test leads

<10 Hz (-3 dB)

With STL120-IV 1:1 shielded test leads

<10 Hz (-3 dB)

With VP41 10:1 Probe

<10 Hz (-3 dB)

Rise time, excluding probes, 
test leads

123B <17.5 ns
124B and 125B <8.75 ns

Input impedance

Without probes and test leads

1 MΩ//20 pF

With BB120

1 MΩ//24 pF

With STL120-IV 1:1 shielded test leads

1 MΩ//230 pF

With VP41 10:1 Probe

5 MΩ//15.5 pF

Sensitivity

5 mV to 200 V/div

Analog bandwidth limiter

10 kHz

Display modes

A, -A, B, -B

Max. input voltage A and B

Direct, with test leads, or with VP41 Probe

600 Vrms Cat IV, 750 Vrms maximum voltage.

With BB120

600 Vrms

Max. floating voltage, from any terminal to ground

600 Vrms Cat IV, 750 Vrms up to 400Hz