Description
We offer precision True RMS A.C. Millivoltmeter, ACM***2 &
ACM***3.
ACM***2: True RMS A.C. Millivoltmeter, ACM***2 is based on
AD**6. This is a completely monolithic integrated circuit which
performs true rms-to-dc conversion of any waveform. The true rms
value of a waveform is more useful quantity than average rectified
value, since it relates directly to the power of the signal. The
crest factor compensation scheme of the AD**6 allows measurement of
highly complex signals with wide dynamic range. The crest factor is
often overlooked in determining the accuracy of an ac measurement.
Crest factor is defined as the ratio of the peak signal amplitude
to the rms value of the signal (C.F.=Vp/Vrms). Input signal is
appropriately processed through a FET input wide band, extremely
fast settling time, low noise amplifier.
ACM***3: In model ACM***3 besides all features of ACM***2,
an IC based 1KHz oscillator followed by a buffer, is in-built. This
eliminate the need of an external oscillator for purpose, such as
determination of h-parameters of a transistor, bridge measurement
etc., where spot frequency of 1KHz is most commonly used.
Highlights
- Measures True RMS Voltage
- Accuracy 1%
- High Input Impedance
- High Stablility
- Excellent Linearity
Applications
- Measurement of low signal like microphone outputs e.g. in
r.m.s. sound level monitoring
- Amplifier frequency response well beyond audio ranges
- RMS voltage measurement of modulated signals
- Power measurements with external standard resistance
Specifications of ACM***2
Voltage Range: *0mV, **0mV, 2V and *0V
Frequency Range: *0Hz to **0KHz
Input Impedance: 1MW shunted by *5pf on all ranges
Accuracy: 1% in the range *0Hz***0KHz; 2% in the range
**0KHz***0KHz
Display: 3½ digit, 7 segment LED (*2.5mm height) with
decimal and overflow indication
Power Supply:**0V ±*0%, *0Hz
Weight: 2.5Kg & 3Kg
Accessories: *5cm shielded cable with a coaxial connector at
one end and banana plugs on the other end
Specification of ACM***3 (Additional Features)
Oscillator Output:****0mV continuously variable
Frequency: 1KHz fixed
