True RMS Multimeters
Specifications
Accuracy ± ( [ % of Reading ] + [ Counts ] )
Function
DC Amps
(Models 111 and 112)
Range
6.000 A
10.00A continuous or 20 A overload for 30 seconds maximum
Resolution
0.001 A
0.01 A
Model 110
NA
Model 111
1.0 % + 3
Model 112
1.0 % + 3
Hz6 (V or A input )
99.99Hz
999.9Hz
9.999 kHz
50.00kHz
0.01Hz
0.1Hz
0.001 kHz
0.01kHz
0.1 % + 2
0.1 % + 2
0.1 % + 2
MIN MAX AVG Accuracy and Response Time
Accuracy is the specified accuracy of the measurement function ± 12 digits for changes >275 ms in duration (± 40 digits in AC). Typical response time: 100 ms to 80 % of signal, except V AC and A AC.
1.AC voltage ranges are specified from 5% of range to 100% of range.
2.Crest factor of ≤ 3 at full scale up to 300 V, decreasing linearly to crest factor ≤ 1.5 at 600 V.
3.The 6000 mV range can only be entered in Manual Range mode.
4.For film capacitors.
5.Crest factor of ≤ 3. AC current is not specified below 3A.
6.Hz is specified from 5 Hz to 50 kHz in volts, from 50 Hz to 5 kHz in amps.
Function
Volts AC
Volts DC
Ohms
Diode test
Input Impedance (Nominal)
>5 MΩ < 100 pF
>10 MΩ < 100 pF
Open Circuit Test Voltage
<1.5 V DC
2.4to 3.0 V DC
Common Mode Rejection Ratio
> 60 dB at DC, 50 Hz or 60 Hz
> 100 dB at DC, 50 Hz or 60 Hz
| Full Scale Voltage | |
To 6 MΩ |
| 40 MΩ |
< 600 mV DC |
| < 1.5V DC |
| 2.400 V DC | |
Normal Mode Rejection
> 50 dB at 50 Hz or 60 Hz
Short Circuit Current
<500 µA
1.2mA typical
13