Gossen Metrawatt Metrahit 18S
Revision as of 21:29, 21 September 2016 by Matthias Heidbrink (talk | contribs) (→Measurement functions and ranges: Cosmetics.)
Status | supported |
---|---|
Source code | gmc-mh-1x-2x |
Counts | 31000 |
IEC 61010-1 | CAT III 1000 V, CAT IV 600 V |
Connectivity | Infrared (RS232) |
Measurements | voltage, current, resistance, capacitance, temperature, diode, continuity |
Features | autorange, data hold, bargraph |
The Gossen Metrawatt Metrahit 18S is a 31000 counts handheld digital multimeter with IR (RS232) connectivity.
Hardware
- Battery: 9 V IEC 6 F 22 or IEC 6 LR 61 or corresponding rechargeable battery
- Fuse:
- Current 300 mA: FF (UR) 1,6 A/500G; 6,3x32 mm
- Current 3A, 10A:
- Siba Ultrarapid 16A/600 V≈ 10mm x 38 mm
- Littlefuse KLK 15A/600 V≈ 13/32” / 1 1/2”
- Bussmann KLK 15A/600 V≈ 13/32” / 1 1/2”
- TODO.
Photos
Measurement functions and ranges
Measurement function | Range | Resolution | Accuracy | sigrok result | Remarks |
---|---|---|---|---|---|
V= | 300 mV | 10 μV | ±(0.05% + 3) | mq V, unit V, mqflags DC | Input Impendance >10 GΩ |
3 V | 100 μV | ±(0.05% + 3) | " | ||
30 V | 1 mV | " | |||
300 V | 10 mV | " | |||
1000 V | 100 mV | " | |||
V≈ | 300 mV | 10 µV | ±(0.5% + 30) (> 500 Digit)) | mq V, unit V, mqflags AC,RMS | |
3 V | 100 μV | ±(0.5% + 30) (> 300 Digit) | " | ||
30 V | 1 mV | " | |||
300 V | 10 mV | " | |||
1000 V | 100 mV | " | |||
V≃ | 300 mV | 10 μV | ±(0.5% + 30) (> 500 Digit)) | mq V, unit V, mqflags AC,DC,RMS | |
3 V | 100 μV | ±(0.5% + 30) (> 300 Digit) | " | ||
30 V | 1 mV | " | |||
300 V | 10 mV | " | |||
1000 V | 100 mV | " | |||
V db≈ | -48 - 63 dB | 0.01 dB | mq V, unit V, mqflags AC,RMS | Actually 5 ranges. | |
V db≈ rel | -48 - 63 dB | 0.01 dB | mq V, unit V, mqflags AC,RMS | Actually 5 ranges. To activate, press yellow button in dB mode, then do second measurement. Cannot be distinguished from non-rel measurement remotely. | |
A= | 300.00 µA | 100 nA | mq Curr., unit A, mqflags DC | ||
3.0000 mA | 1 µA | " | |||
30.000 mA | 1 µA | " | |||
300.00 mA | 10 µA | " | |||
3.0000 A | 100 µA | " | |||
10.000 A | 1 mA | " | |||
A≃ | 300.00 µA | 100 nA | mq Curr., unit A, mqflags AC,DC,RMS | ||
3.0000 mA | 1 µA | " | |||
30.000 mA | 1 µA | " | |||
300.00 mA | 10 µA | " | |||
3.0000 A | 100 µA | " | |||
10.000 A | 1 mA | " | |||
Ω | 300.00 Ω | 10 mΩ | mq Res., unit Ω, mqflags - | ||
3.0000 kΩ | 100 mΩ | " | |||
30.000 kΩ | 1 Ω | " | |||
300.00 kΩ | 10 Ω | " | |||
3.0000 MΩ | 100 Ω | " | |||
30.000 MΩ | 1 kΩ | " | |||
Diode/Cont. | 3.0000 V– | 1 mV | mq V, unit V, mqflags DC,DIODE | Diode and cont. are identical on this device, just without beeper for diode. | |
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 | ±(5.0% + 6) | " | ||
3.000 mF | 1 µF | " | |||
10.00 mF | 10 µF | " | |||
Hz≃ | 300.00 Hz | 0.01 Hz | ±(0.1% + 3) | mq Freq., unit Hz, mqflags AC,DC | |
3.0000 kHz | 0.1 Hz | " | |||
30.000 kHz | 1 Hz | " | |||
100.000 kHz | 10 Hz | " | |||
°C | Pt100 –200.0 - +100.0 °C | 0.1 °C | 2 Kelvin + 5 | mq Temp., unit °C, mqflags - | |
Pt100 +100.0 - +800.0 °C | ±(1.0% + 5) | " | |||
Pt1000 –100.0 - +100.0 °C | 2 Kelvin + 5 | " | |||
Pt1000 +100.0 - +800.0 °C | ±(1.0% + 5) | " |
| ||
Event count | 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 | (Time data) | 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 Matthias' device. | |||
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.