Difference between revisions of "Gossen Metrawatt Metrahit 28S"

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== Measurement functions and ranges ==
Note: Work in progress, currently simply wrong!
{|border="0" style="font-size: smaller" class="alternategrey sortable sigroktable"
|-
! Measurement function
! Range
! Resolution
! Accuracy
! sigrok result
! Remarks
|-
| rowspan="5" | V=
| 300 mV
| 1 μV
| ±(0,02% + 0,010% + 5)
| mq V, unit V, mqflags DC
|
|-
| 3 V
| 10 μV
| rowspan="4" | ±(0,02% + 0,005% + 5)
| "
|
|-
| 30 V
| 100 μV
| "
|
|-
| 300 V
| 1 mV
| "
|
|-
| 1000 V
| 10 mV
| "
|
|-
| rowspan="5" | V≈
| 300 mV
| 10 µV
| ±(0,5% + 30) (> 500 Digit))
| mq V, unit V, mqflags AC,RMS
|
|-
| 3 V
| 100 μV
| rowspan="4" | ±(0,2% + 30)
| "
|
|-
| 30 V
| 100 μV
| "
|
|-
| 300 V
| 1 mV
| "
|
|-
| 1000 V
| 10 mV
| "
|
|-
| rowspan="5" | V≃
| 300 mV
| 10 μV
| ±(0,5% + 30) (> 500 Digit))
| mq V, unit V, mqflags AC,DC,RMS
|
|-
| 3 V
| 100 μV
| rowspan="4" | ±(0,2% + 30)
| "
|
|-
| 30 V
| 100 μV
| "
|
|-
| 300 V
| 1 mV
| "
|
|-
| 1000 V
| 10 mV
| "
|
|-
| V db≈
| -48 - 63 dB
| 0,01 dB
|
| mq V, unit V, mqflags AC,RMS
| Actually the 5 AC ranges, see there for accuracy.
|-
| V db≈ rel
| -48 - 63 dB
| 0,01 dB
|
| mq V, unit V, mqflags AC,RMS
| Actually the 5 AC ranges, see there for accuracy. To activate, press yellow button in dB mode, then do second measurement. Cannot be distinguished from non-rel measurement remotely.
|-
| rowspan="6" | A=
| 300.00 µA
| 1 nA
|
| mq Curr., unit A, mqflags DC
|
|-
| 3.0000 mA
| 10 nA
|
| "
|
|-
| 30.000 mA
| 100 nA
|
| "
|
|-
| 300.00 mA
| 1 µA
|
| "
|
|-
| 3.0000 A
| 100 µA
|
| "
|
|-
| 10.000 A
| 1 mA
|
| "
|
|-
| rowspan="6" | A≃
| 300.00 µA
| 10 nA
|
| mq Curr., unit A, mqflags AC,DC,RMS
|
|-
| 3.0000 mA
| 100 nA
|
| "
|
|-
| 30.000 mA
| 1 µA
|
| "
|
|-
| 300.00 mA
| 10 µA
|
| "
|
|-
| 3.0000 A
| 100 µA
|
| "
|
|-
| 10.000 A
| 1 mA
|
| "
|
|-
| rowspan="6" | Ω
| 300.00 Ω
| 1 mΩ
|
| mq Res., unit Ω, mqflags -
|
|-
| 3.0000 kΩ
| 10 mΩ
|
| "
|
|-
| 30.000 kΩ
| 100 mΩ
|
| "
|
|-
| 300.00 kΩ
| 1 Ω
|
| "
|
|-
| 3.0000 MΩ
| 10 Ω
|
| "
|
|-
| 30.000 MΩ
| 100 Ω
|
| "
|
|-
| Ohm/Cont.
| 300 Ω
| 100 mΩ
|
| mq Res., unit Ω, mqflags -
|
|-
| Diode/Cont.
| 300 mV
| 100 µV
|
| mq V, unit V, mqflags DC,DIODE
|
|-
| Diode
| 3 V
| 100 µV
|
| mq V, unit V, mqflags DC,DIODE
|
|-
| rowspan="8" | Cap. F
| 3.000 nF
| 1 pF
|
| mq Cap., unit F, mqflags -
|
|-
| 30.00 nF
| 10 pF
|
| "
|
|-
| 300.0 nF
| 100 pF
|
| "
|
|-
| 3.000 µF
| 1 nF
|
| "
|
|-
| 30.00 µF
| 10 nF
|
| "
|
|-
| 300.0 µF
| 100 nF
| rowspan="3" | ±(5.0% + 6)
| "
|
|-
| 3.000 mF
| 1 µF
| "
|
|-
| 30.00 mF
| 1 µF
| "
|
|-
| rowspan="3" | Hz≃
| 300.00 Hz
| 0.001 Hz
| rowspan="3" | ±(0.05% + 1)
| mq Freq., unit Hz, mqflags AC,DC
|
|-
| 3.0000 kHz
| 0.01 Hz
| "
|
|-
| 300.000 kHz
| 1 Hz
| "
|
|-
| rowspan="4" | °C
| Pt100/Pt1000<br> –200.0 - +100.0 °C
| rowspan="4" | 0.1 °C
| ±(0,5 K + 3)
| mq Temp., unit °C, mqflags -
|
|-
| Pt100/Pt1000<br> +100.0 - 850.0 °C
| ±(0,2% + 3)
| mq Temp., unit °C, mqflags -
|
|-
| K NiCr-Ni -270-+1372,0 °C
| ±(0,7% + 3)
| "
|
|-
| J Fe-CuNi -210 - +1200.0 °C
| ±(0,8% + 3)
| "
|
|-
| °F
|
|
|
| mq Temp., unit °C, mqflags -
| Not tested yet.
|-
| Event count 
|
| 
|
| style="background: #FFFF00; "| mq V, unit V, mqflags AC,RMS,REL
|  Counts events >= 2500 digits that last >=2s with a break >=2s. To activate, switch to voltage ACDC, press yellow button twice. Press up to 4 times to cycle parameters, press long to stop. See manual. Not useful remotely because the current measurement value is sent, not the counter.
|-
| Stop Watch 
|
|  100 ns
|
| style="background: #ff0000; "| (Time data)
| Max. 100 Min. To activate, select a 3V-1000V≃ range manually, press yellow button, press AUTO for start/stop, DATA for reset. Delivers only invalid data ("Overflow") via IR on [[User:Matthias Heidbrink | Matthias']] test device.
|-
| Data Hold 
|
| 
|
| style="background: #ff0000; "| mqflags += HOLD
| Disabled while IR interface is active on [[User:Matthias Heidbrink | Matthias']] test device.
|-
| MIN
|
| 
|
| style="background: #ff0000; "| mqflags += MIN
| Influences only display, via IR flag is set, but actual current value is delivered.
|-
| MAX
|
| 
|
| style="background: #ff0000; "| mqflags += MAX
| Influences only display, via IR flag is set, but actual current value is delivered.
|-
|}
The column "sigrok result" contains in short form what the driver generates for the resp. data type.




Revision as of 12:08, 3 November 2013

Gossen Metrawatt Metrahit 28S
Status in progress
Counts 310000
IEC 61010-1 CAT III 600 V, CAT IV 300 V
Connectivity Infrared (RS232/USB)
Measurements voltage, current, resistance, capacitance, temperature, diode, continuity, insulation
Features autorange, data hold, bargraph, backlight
Website [1]

The Gossen Metrawatt Metrahit 28S is a 310000 counts handheld digital multimeter with IR (RS232) connectivity.

Hardware

  • Fuse:
    • Current 300 mA: FF (UR) 1,6 A/1000 V AC/DC (10 kA) 6,3 mm x 32 mm
    • Current 3A/10A: FF (UR) 10 A/1000 V AC/DC (30 kA) 10 mm x 38 mm
  • TODO.

Photos

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