Difference between revisions of "Gossen Metrawatt Metrahit 14A"
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| name = [[Gossen Metrawatt]] Metrahit 14A | | name = [[Gossen Metrawatt]] Metrahit 14A | ||
| status = supported | | status = supported | ||
| source_code_dir = | | source_code_dir = gmc-mh-1x-2x | ||
| counts = 3100 | | counts = 3100 | ||
| categories = CAT III 1000 V, CAT IV 600 V | | categories = CAT III 1000 V, CAT IV 600 V | ||
| Line 53: | Line 53: | ||
| 30.00 mV | | 30.00 mV | ||
| 10 μV | | 10 μV | ||
| rowspan="2" | ±(0 | | rowspan="2" | ±(0.5% + 3) | ||
| mq V, unit V, mqflags DC | | mq V, unit V, mqflags DC | ||
| Manual range | | Manual range | ||
| Line 66: | Line 66: | ||
| 3.000 V | | 3.000 V | ||
| 1 mV | | 1 mV | ||
| rowspan="3" | ±(0 | | rowspan="3" | ±(0.25% + 1) | ||
| " | | " | ||
| | | | ||
| Line 85: | Line 85: | ||
| 1000 V | | 1000 V | ||
| 1 V | | 1 V | ||
| ±(0 | | ±(0.35% + 1) | ||
| " | | " | ||
| | | | ||
| Line 93: | Line 93: | ||
| 3.000 V | | 3.000 V | ||
| 1 mV | | 1 mV | ||
| rowspan="4" | ±(0 | | rowspan="4" | ±(0.75% + 2) | ||
| " | | " | ||
| | | | ||
| Line 119: | Line 119: | ||
| 3.000 mA | | 3.000 mA | ||
| 1 µA | | 1 µA | ||
| | | ±(1.0% + 5) | ||
| mq Curr., unit A, mqflags DC | | mq Curr., unit A, mqflags DC | ||
| Disabled on power on, see below. | | Disabled on power on, see below. | ||
| Line 126: | Line 126: | ||
| 30.00 mA | | 30.00 mA | ||
| 10 µA | | 10 µA | ||
| | | ±(0.25% + 2) | ||
| " | | " | ||
| | | | ||
| Line 133: | Line 133: | ||
| 300.0 mA | | 300.0 mA | ||
| 100 µA | | 100 µA | ||
| | | ±(1.0% + 2) | ||
| " | | " | ||
| | | | ||
| Line 140: | Line 140: | ||
| 3.000 A | | 3.000 A | ||
| 1 mA | | 1 mA | ||
| | | ±(1.0% + 5) | ||
| " | | " | ||
| Disabled on power on, see below. | | Disabled on power on, see below. | ||
| Line 147: | Line 147: | ||
| 10.00 A | | 10.00 A | ||
| 10 mA | | 10 mA | ||
| | | ±(1.0% + 2) | ||
| " | | " | ||
| | | | ||
| Line 155: | Line 155: | ||
| 30.00 mA | | 30.00 mA | ||
| 10 µA | | 10 µA | ||
| | | rowspan="3" | ±(1.5% + 2) | ||
| mq Curr., unit A, mqflags AC | | mq Curr., unit A, mqflags AC | ||
| | | | ||
| Line 162: | Line 162: | ||
| 300.0 mA | | 300.0 mA | ||
| 100 µA | | 100 µA | ||
| " | | " | ||
| | | | ||
| Line 169: | Line 168: | ||
| 10.00 A | | 10.00 A | ||
| 10 mA | | 10 mA | ||
| " | | " | ||
| | | | ||
| Line 182: | Line 180: | ||
|- | |- | ||
| 300 Ω | | 300.0 Ω | ||
| 100 mΩ | | 100 mΩ | ||
| | | | ||
Latest revision as of 20:30, 21 September 2016
 | |
| Status | supported |
|---|---|
| Source code | gmc-mh-1x-2x |
| Counts | 3100 |
| IEC 61010-1 | CAT III 1000 V, CAT IV 600 V |
| Connectivity | Infrared (RS232) |
| Measurements | voltage, current, resistance, temperature, diode, continuity |
| Features | autorange, data hold, bargraph |
The Gossen Metrawatt Metrahit 14A is a 3100 counts handheld digital multimeter with IR (RS232) connectivity.
It is very similar to the Metrahit 14S, but has no ranges of 3 µA= and 3 mA≈.
Hardware
- Battery: 9 V IEC 6 F 22 or IEC 6 LR 61 or corresponding rechargeable battery
- Fuse:
- Current 300 mA: FF 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
Front
Display
Back
Back/battery cover removed
Cover removed
Measurement functions and ranges
| Measurement function | Range | Resolution | Accuracy | sigrok result | Remarks |
|---|---|---|---|---|---|
| V= | 30.00 mV | 10 μV | ±(0.5% + 3) | mq V, unit V, mqflags DC | Manual range |
| 300.0 mV | 100 μV | " | " | ||
| 3.000 V | 1 mV | ±(0.25% + 1) | " | ||
| 30.00 V | 10 mV | " | |||
| 300.0 V | 100 mV | " | |||
| 1000 V | 1 V | ±(0.35% + 1) | " | ||
| V≈ | 3.000 V | 1 mV | ±(0.75% + 2) | " | |
| 30.00 V | 10 mV | " | |||
| 300.0 V | 100 mV | " | |||
| 1000 V | 1 V | " | |||
| A= | 3.000 mA | 1 µA | ±(1.0% + 5) | mq Curr., unit A, mqflags DC | Disabled on power on, see below. |
| 30.00 mA | 10 µA | ±(0.25% + 2) | " | ||
| 300.0 mA | 100 µA | ±(1.0% + 2) | " | ||
| 3.000 A | 1 mA | ±(1.0% + 5) | " | Disabled on power on, see below. | |
| 10.00 A | 10 mA | ±(1.0% + 2) | " | ||
| A≈ | 30.00 mA | 10 µA | ±(1.5% + 2) | mq Curr., unit A, mqflags AC | |
| 300.0 mA | 100 µA | " | |||
| 10.00 A | 10 mA | " | |||
| Ω | 30.00 Ω | 10 mΩ | mq Res., unit Ω, mqflags - | Allows setting zero: Press yellow button short, decimal dot blinks. Press yellow button long until device beeps twice or switch off to disable. | |
| 300.0 Ω | 100 mΩ | " | |||
| 3.000 kΩ | 1 Ω | " | |||
| 30.00 kΩ | 10 Ω | " | |||
| 300.0 kΩ | 100 Ω | " | |||
| 3.000 MΩ | 1 kΩ | " | |||
| 30.00 MΩ | 10 kΩ | " | |||
| Diode/Cont. | 3.000 V– | 1 mV | mq V, unit V, mqflags DC,DIODE | Diode and cont. are identical on this device, just without beeper for diode. | |
| °C | Pt100 –200.0 - +200.0 °C | 0.1 °C | 2 Kelvin + 5 | mq Temp., unit °C, mqflags - | |
| Pt100 +200.0 - +850.0 °C | ±(1.0% + 5) | " | |||
| Pt1000 –100.0 - +200.0 °C | 2 Kelvin + 2 | " | |||
| Pt1000 +200.0 - +850.0 °C | ±(1.0% + 2) | " | |||
| Data Hold | mqflags += HOLD | Disabled while IR interface is active. | |||
| 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. |
To enable the ranges 3.000 mA and 3.000 A, switch function selector to circle with dot symbol and press yellow button. Wait until auto calibration of these ranges is finished ("CAL" in display disappears). After that the ranges are available in the mA resp. A function until multimeter powered off automatically or manually.
The column "sigrok result" contains in short form what the driver generates for the resp. data type.