Difference between revisions of "Gossen Metrawatt T-Com KMM2002"
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m (Fixed source code path) |
(→Measurement functions and ranges: Cosmetics.) |
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| Line 51: | Line 51: | ||
| 30 mV | | 30 mV | ||
| 10 μV | | 10 μV | ||
| ±(0 | | ±(0.5% + 3) | ||
| mq V, unit V, mqflags DC | | mq V, unit V, mqflags DC | ||
| Input impendance >10 GΩ; not covered by autorange, use manual range | | Input impendance >10 GΩ; not covered by autorange, use manual range | ||
| Line 58: | Line 58: | ||
| 300 mV | | 300 mV | ||
| 100 μV | | 100 μV | ||
| ±(0 | | ±(0.5% + 3) | ||
| " | | " | ||
| " | | " | ||
| Line 65: | Line 65: | ||
| 3 V | | 3 V | ||
| 1 mV | | 1 mV | ||
| rowspan="3" | ±(0 | | rowspan="3" | ±(0.25% + 1) | ||
| " | | " | ||
| | | | ||
| Line 84: | Line 84: | ||
| 1000 V | | 1000 V | ||
| 1 V | | 1 V | ||
| ±(0 | | ±(0.35% + 1) | ||
| " | | " | ||
| | | | ||
| Line 144: | Line 144: | ||
| 30 A | | 30 A | ||
| 10 mA | | 10 mA | ||
| rowspan="2" | ±(2 | | rowspan="2" | ±(2.5% + 3) (>10 Digit) | ||
| mq Curr., unit A, mqflags AC,DC,RMS | | mq Curr., unit A, mqflags AC,DC,RMS | ||
| rowspan="2" | Current clamp with 100 mV/A required, e.g. GMC WZ12B | | rowspan="2" | Current clamp with 100 mV/A required, e.g. GMC WZ12B | ||
| Line 157: | Line 157: | ||
| 30.00 Ω | | 30.00 Ω | ||
| 10 mΩ | | 10 mΩ | ||
| rowspan="2" | ±(0 | | rowspan="2" | ±(0.5% + 3) | ||
| mq Res., unit Ω, mqflags - | | mq Res., unit Ω, mqflags - | ||
| | | | ||
| Line 170: | Line 170: | ||
| 3.000 kΩ | | 3.000 kΩ | ||
| 1 Ω | | 1 Ω | ||
| rowspan="3" | ±(0 | | rowspan="3" | ±(0.4% + 1) | ||
| " | | " | ||
| | | | ||
| Line 189: | Line 189: | ||
| 3.000 MΩ | | 3.000 MΩ | ||
| 1 kΩ | | 1 kΩ | ||
| ±(0 | | ±(0.6% + 1) | ||
| " | | " | ||
| | | | ||
| Line 196: | Line 196: | ||
| 30.00 MΩ | | 30.00 MΩ | ||
| 10 kΩ | | 10 kΩ | ||
| ±(2 | | ±(2.0% + 1) | ||
| " | | " | ||
| | | | ||
| Line 212: | Line 212: | ||
| 3.0000 V– | | 3.0000 V– | ||
| 1 mV | | 1 mV | ||
| ±(0 | | ±(0.25% + 1) | ||
| mq V, unit V, mqflags DC,DIODE | | mq V, unit V, mqflags DC,DIODE | ||
| Diode and cont. are identical on this device, just without beeper for diode. | | Diode and cont. are identical on this device, just without beeper for diode. | ||
| Line 220: | Line 220: | ||
| 30.00 nF | | 30.00 nF | ||
| 10 pF | | 10 pF | ||
| rowspan="3" | ±(1 | | rowspan="3" | ±(1.0% + 3) | ||
| mq Cap., unit F, mqflags - | | mq Cap., unit F, mqflags - | ||
| | | | ||
Latest revision as of 21:34, 21 September 2016
 | |
| Status | supported |
|---|---|
| Source code | gmc-mh-1x-2x |
| Counts | 3100 (31000) |
| IEC 61010-1 | CAT II 1000 V |
| Connectivity | Infrared (RS232) |
| Measurements | voltage, current, resistance, capacitance, temperature, diode, continuity |
| Features | autorange, data hold, bargraph, backlight |
| Website | [1] |
The Gossen Metrawatt T-Com KMM2002 is a 3100 counts handheld digital multimeter with IR (RS232) connectivity and insulation measurement (100 V). It seems to be an OEM version of the Metrahit 16T especially made for T-Com (Deutsche Telekom). Additional features seems to be a backlight and a 30 nF capacity range.
The resolution is one digit higher on the data interface.
Hardware
- Battery: 9 V IEC 6 LR 61
- Fuse: None! (not required, no internal amps ranges)
- TODO.
Photos
With rubber sleeve
Front
Back
Inside
Inside, inner cover removed
Board details 1
Board details 2
Measurement functions and ranges
The specifications of the KMM2002 seem not to be available to the public. The following is taken from the specs of the Metrahit 16T which seems to be almost identical and the Metrahit 16I .
| Measurement function | Range | Resolution | Deviation | sigrok result | Remarks |
|---|---|---|---|---|---|
| V= | 30 mV | 10 μV | ±(0.5% + 3) | mq V, unit V, mqflags DC | Input impendance >10 GΩ; not covered by autorange, use manual range |
| 300 mV | 100 μV | ±(0.5% + 3) | " | " | |
| 3 V | 1 mV | ±(0.25% + 1) | " | ||
| 30 V | 10 mV | " | |||
| 300 V | 100 mV | " | |||
| 1000 V | 1 V | ±(0.35% + 1) | " | ||
| V≈ | 3 V | 100 μV | ±(1.0% + 3) (> 10 Digit) | mq V, unit V, mqflags AC,RMS | |
| 30 V | 100 μV | " | |||
| 300 V | 1 mV | " | |||
| 1000 V | 10 mV | " | |||
| V≃ | 3 V | 100 μV | ±(1.0% + 3) (> 10 Digit) | mq V, unit V, mqflags AC,DC,RMS | |
| 30 V | 100 μV | " | |||
| 300 V | 1 mV | " | |||
| 1000 V | 10 mV | " | |||
| A≈ (clamp only) | 30 A | 10 mA | ±(2.5% + 3) (>10 Digit) | mq Curr., unit A, mqflags AC,DC,RMS | Current clamp with 100 mV/A required, e.g. GMC WZ12B |
| 100 A | 100 mA | " | |||
| Ω | 30.00 Ω | 10 mΩ | ±(0.5% + 3) | mq Res., unit Ω, mqflags - | |
| 300.0 Ω | 100 mΩ | " | |||
| 3.000 kΩ | 1 Ω | ±(0.4% + 1) | " | ||
| 30.00 kΩ | 10 Ω | " | |||
| 300.0 kΩ | 100 Ω | " | |||
| 3.000 MΩ | 1 kΩ | ±(0.6% + 1) | " | ||
| 30.00 MΩ | 10 kΩ | ±(2.0% + 1) | " | ||
| Ω Iso 100V | 310 MΩ | 100 Ω - 100 kΩ | ±(3% + 2) | mq Res., unit Ω, mqflags - | Altogether 4 ranges with different resolution |
| Diode/Cont. | 3.0000 V– | 1 mV | ±(0.25% + 1) | mq V, unit V, mqflags DC,DIODE | Diode and cont. are identical on this device, just without beeper for diode. |
| Cap. F | 30.00 nF | 10 pF | ±(1.0% + 3) | mq Cap., unit F, mqflags - | |
| 300.0 nF | 100 pF | " | |||
| 3.000 µF | 1 nF | " | |||
| Hz= | 300.0 Hz | 0.01 Hz | ±(0.1% + 3) | mq Freq., unit Hz | Communication protocol does not allow to differ AC and DC. |
| 3.000 kHz | 0.1 Hz | " | |||
| 30.00 kHz | 1 Hz | " | |||
| 100.00 kHz | 10 Hz | " | Device actually measures up to more than 160 kHz. | ||
| Hz≈ | 300.0 Hz | 0.01 Hz | ±(0.1% + 3) | mq Freq., unit Hz | Communication protocol does not allow to differ AC and DC. |
| 3.000 kHz | 0.1 Hz | " | |||
| 30.00 kHz | 1 Hz | " | |||
| 100.00 kHz | 10 Hz | " | Device actually measures up to more than 160 kHz. | ||
| °C | Pt100 –200.0 - +200.0 °C | 0.1 °C | 2 Kelvin + 5 | mq Temp., unit °C, mqflags - | °F temperature ranges accordingly, but not available via serial interface. |
| Pt100 +200.0 - +800.0 °C | ±(1.0% + 5) | " | |||
| Pt1000 –100.0 - +200.0 °C | 2 Kelvin + 5 | " | |||
| Pt1000 +200.0 - +800.0 °C | ±(1.0% + 5) | " | |||
| Event count | Seems not to be present on data output. | ||||
| Data Hold | mqflags += HOLD | Disabled while IR interface is active on Matthias' device. | |||
| MIN | mqflags += MIN | Influences only display, via IR flag is set, but actual current value is delivered. | |||
| MAX | 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.