Datasheet
METRAHIT⏐X-TRA⏐OUTDOOR⏐TECH⏐PRO⏐BASE
TRMS Digital Multimeters
4 GMC-I Gossen-Metrawatt GmbH
Internal Clock
Time format DD.MM.YYYY hh:mm:ss
Resolution 0.1 s
Accuracy ±1min. per month
Temperature Influence 50 ppm/K
Influencing Quantities and Influence Error
1)
With zero balancing
2)
Power limiting: frequency x voltage max. 3 x 10
6
V x Hz for U > 100 V
3)
The accuracy specification for frequency response is valid within a display value
range of 10% to 100% of the measuring range for both measuring modes with the
TRMS converter in the AC and (AC+DC) ranges.
4)
METRAHIT⏐X-TRA⏐OUTDOOR: frequency response up to 20 kHz,
METRAHIT⏐T
ECH: frequency response up to 10 kHz,
METRAHIT⏐P
RO: frequency response up to 10 kHz,
METRAHIT⏐B
ASE: frequency response up to 1 kHz
5)
Except for sinusoidal waveshape
Reference Conditions
Ambient temperature +23 °C ±2K
Relative humidity 40 ... 75%
Measured qty. frequency 45 ... 65 Hz
Measured qty. waveshape Sine
Battery voltage 3 V ±0.1 V
Response Time (after manual range selection)
Data Interface (METRAHIT⏐X-TRA⏐OUTDOOR only)
Type
Optical via infrared light through the housing
Data transmission Serial, bidirectional (not IrDa compatible)
Protocol Device specific
Baud rate 38,400 baud
Functions – Select/query measuring functions
and parameters
–
Query momentary measurement data
– Read out stored measurement data
The USB⏐X-
TRA plug-in interface adapter (see accessories) is
used for adaptation to the PC’s USB port.
Internal Measured Value Storage
(METRA
HIT
⏐
X-
TRA
⏐
O
UTDOOR
only)
Memory capacity 4 MBit / 540 kB for approx. 15,400
measured values with date and time stamp
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
1)
Influence Error
(...% rdg. + ... d) / 10 K
Temperature
–10 °C ... +21 °C
and
+25 °C ... +50 °C
V 0.2 + 10
V 0.4 + 10
100 Ω ... 1 MΩ 0.5 + 10
> 1 MΩ 1 + 10
mA/A 0.5 + 10
mA/A 0.8 + 10
10 nF ... 100 μF1 + 5
Hz 0.2 + 10
°C/°F (Pt100/Pt1000) 0.5 + 10
°C/°F thermocouple K 0.2 + 10
Influenc-
ing Qty.
Meas. Qty. /
Meas. Range
Sphere of Influence
Intrinsic Error
3)
±( ... % rdg. + ... d)
METRAHIT⏐X-
TRA
METRA
HIT
⏐
O
UTDOOR
METRAHIT⏐TECH
METRAHIT⏐PRO
METRAHIT⏐BASE
Fre-
quency
V
AC
100.00 mV
> 15 Hz ... 45 Hz 3 + 30 3 + 30
> 65 Hz ... 1 kHz 2 + 30 3 + 30
> 1 kHz ... 10 kHz 3 + 30 —
1.0000 V
...
100.00 V
> 15 Hz ... 45 Hz 2 + 9 3 + 9
> 65 Hz ... 1 kHz 1 + 9 3 + 9
> 1 kHz ...10/20kHz
4)
3 + 9 —
1000.0 V
2)
> 15 Hz ... 45 Hz 2 + 9 3 + 9
> 65 Hz ... 1 kHz 2 + 9 3 + 9
> 1 kHz ... 10 kHz 3 + 30 —
A
AC
100.00 μA
...
10.0000 A
> 15 Hz ... 45 Hz
3 + 10 —
> 65 Hz ... 10 kHz
A
AC
100 mV /
1 V / 10 V
> 65 Hz ... 1 kHz — 3 + 10
Influencing
Quantity
Sphere of
Influence
Measured Quantity/
Measuring Range
Influence Error
5)
Crest factor CF
1 ... 3
V, A
± 1 % rdg.
> 3 ... 5 ± 3 % rdg.
Influencing
Quantity
Sphere of
Influence
Measured Quantity Influence Error
Relative
humidity
75%
3 days
instrument off
V, A, Ω, F, Hz, °C1 x intrinsic error
Battery voltage 1.8 to 3.6 V ditto Included in intrinsic error
Influencing
Quantity
Sphere of Influence
Measured Quantity /
Measuring Range
Damping
Common Mode
Interference
Voltage
Interference quantity max. 1000 V V > 120 dB
Interference quantity max. 1000 V
50 Hz ... 60 Hz, sine
1 V , 10 V > 80 dB
100 V > 70 dB
1000 V > 60 dB
Series Mode
Interference
Voltage
Interference quantity: V , respective
nominal value of the measuring range,
max. 1000 V , 50 Hz ... 60 Hz, sine
V> 50dB
Interference quantity max. 1000 V V > 110 dB
Measured Quantity /
Measuring Range
Response Time
Digital Display
Measured Quantity
waveshape
V, V
AV , A
1.5 s
From 0 to 80%
of upper range limit value
100 Ω ... 1 MΩ 2s
From ∞ to 50%
of upper range limit value
10/40 MΩ 5s
Continuity < 50 ms
°C (Pt 100) Max. 3 s
1.5 s
10 nF ... 100 μFMax. 2s
From 0 to 50%
of upper range limit value
1 000 μFMax. 7s
>10 Hz 1.5 s