Datasheet

METRACAL⏐MC
Multimeter, Calibrator
4 GMC-I Messtechnik GmbH
Influencing Quantities and Influence Error
1)
With zero balancing
2)
Specified error valid as of display values of 10% of the measuring range
Real-Time Clock
Time format DD.MM.YYYY hh:mm:ss,0
Resolution 0.1 s
Accuracy ±1 min./month
Temp. Influence 50 ppm/K
Reference Conditions
Ambient temp. +23° C ±2K
Relative humidity 40 … 60%
Measured quantity
frequency for AC 45 … 65 Hz
Measured quantity
waveform for AC Sinusoidal, deviation between RMS and
rectified value < 0.1%
Battery Voltage 3.0 V ±0.1 V
Response Time (multimeter functions)
Response Time (after manual range selection)
Display
LCD panel (65 x 35 mm) with display of up to 3 measured values, unit of
measure, type of current and various special functions.
Display / char. height 7-segment characters
Main display: 12 mm
Auxiliary displays: 7 mm
Number of places 4¾ places 30,999 steps
Overflow display “OL” or “-OL” appears
Polarity display “–” sign is displayed if plus pole is
connected to “⊥”
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
1)
Influence Error
± (... % rdg. + d)/10 K
Temp erat ure
0 … +21 °C
and
+25...+40° C
VDC, °C (TC) 0.1 + 10
V AC 0.5 + 10
3/30 mA DC 0.1 + 10
3/30 mA AC 0.5 + 10
300 mA DC, AC 0.5 + 10
300Ω/3/30/300 kΩ 2L 0.2 + 10
3MΩ 2L 0.5 + 10
30 MΩ 2L 1 + 10
30/300 nF/3/30/300 μF 0.5 + 10
Hz 0.1 + 10
°C (RTD) 0.2 + 10
Simulator quantity
mV/V, °C (TC) 0.1 + 10
Ω, °C (RTD) 0.2 + 10
mA source 0.1 + 10
mA sink 0.1 + 10
Influencing
Quantity
Frequency
Measured Qty. /
Meas. Range
Influence Error
2)
± (... % rdg. + d)
Frequency
V
AC
> 20 Hz ... 45 Hz
300.00 mV
…
300.0 V
2 + 30
> 65 Hz ... 1 kHz
> 1 kHz ... 20 kHz 3 + 30
Influencing
Quantity
Frequency
Measured Qty. /
Meas. Range
Influence Error
2)
±(... % rdg. +... d)
Frequency
I
AC
> 20 Hz ... 45 Hz 0.3 mA
3mA
30 mA
300 mA
2 + 30
> 65 Hz ... 10 kHz 3 + 30
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
Influence Error
2)
Measured
Quantity
Waveform
Crest
Factor
CF
1 … 2
VAC, AAC
±1 % rdg.
2 … 4
±5 % rdg.
4 … 5
±7 % rdg.
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
Influence Error
Relative
Humidity
75%
3 days
Instrument off
V, A , Ω
F, H z
°C
1 x intrinsic uncertainty
1
2
3
4
5
CF
0
10000 3000020000
Voltage and Current Measurement
Allowable crest factor CF of the periodic quantity to be measured is
dependent upon the displayed value:
Digits
Influencing
Quantity
Sphere of Influence
Measuring
Range
Attenuation
±dB
Common mode
interference
voltage
Interference quantity max. 250 V V > 90 dB
Interference quantity max. 250 V
50 Hz, 60 Hz sine
300 mV ...
30 V
> 80 dB
300 V > 70 dB
Series-mode
interference
voltage
Interference quantity V ,
respective nominal value
of the measuring range
max. 250 V , 50 Hz, 60 Hz, sine
V> 60dB
Interference quantity max. 250 V V > 60 dB
Measured Quantity /
Measuring Range
Digital Display
Response Time
Measured Quantity
Jump Function
VDC, VAC
ADC, AAC
1.5 s
From 0 to 80%
of upper range limit value
300 Ω ... 3MΩ 2s
From ∞ to 50%
of upper range limit value
30 MΩ 5s
Continuity < 50 ms
1.5 s
°C Pt100 Max. 3 s
3 nF ... 30 μFMax. 2s
From 0 to 50%
of upper range limit value
> 10 Hz Max. 1.5 s