Difference between revisions of "Gossen Metrawatt Metrahit 27I"

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(Set status to Planned.)
 
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| name            = Gossen Metrawatt 27I
| name            = Gossen Metrawatt 27I
| status          = planned
| status          = planned
| source_code_dir = gmc_mh_1x_2x
| source_code_dir = <!-- gmc-mh-1x-2x -->
| counts          = 31000
| counts          = 31000
| categories      = CAT II 600 V
| categories      = CAT II 600 V
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'''Please note: This page is a work in progress and still partly incorrect.'''
'''Please note: This page is a work in progress and still partly incorrect.'''


The '''[[Gossen Metrawatt]] Metrahit 27I''' is a 3100/31000 counts 600 V CAT II handheld digital multimeter with IR (RS232) connectivity. It supports milliohm and insulation (megaohm) measurements and has data logging capabilities.
The '''[[Gossen Metrawatt]] Metrahit 27I''' is a 3100/31000 counts 600 V CAT II handheld digital multimeter with bidirectional IR (RS232/USB) connectivity. It supports milliohm and insulation (megaohm) measurements and has data logging capabilities.
 
There are two versions of this device, an older one with yellow rotary switch and a newer one with red rotary switch. They also have different power supply connectors.


== Hardware ==
== Hardware ==
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* '''Power supply''':
* '''Power supply''':
** Battery: 3x ''1,2 V NiMH'' rechargeable batteries
** Battery: 3x ''1,2 V NiMH'' rechargeable batteries
** External power supply ''NA HIT 27'' (Art. Z218J) by Gossen Metrawatt, 5V, 600 mA
** External power supply ''NA HIT 27'' (Art. Z218J) by Gossen Metrawatt, 5V, 600 mA (newer version)
* '''Fuse''':  
* '''Fuse''':  
** FF (UR) 1,6 A/1000 V AC/DC (10 kA) 6,3 mm x 32 mm
** FF (UR) 1,6 A/1000 V AC/DC (10 kA) 6,3 mm x 32 mm
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</gallery>
</gallery>
-->
-->
== Communication Protocol ==
The complete description is available on request from the manufacturer.


<!--
<!--
== Using the device with sigrok ==
== Using the device with sigrok ==
The device is supported in ''Send Mode'' using a [[Gossen_Metrawatt#Metrahit_RS232 | RS232 interface]] by the driver gmc-mh-1x-2x-rs232 and is detected as a ''Metrahit 28S''. Set the multimeter to use the communication adaptor ''RS232''.
The device is supported using a [[Gossen_Metrawatt#Metrahit_RS232 | RS232 interface]] by the driver gmc-mh-27x. The communication adaptor ''USB-Hit'' should work, too, but is untested.
 
The device has got a device address that can be set to values from 0 to 15 in the setup. Using the device address 15 is recommended if only a single device is used, it sets a special mode with simplified addressing. The device address 0 sets a special mode where the multimeter does not send replies. It cannot be used with sigrok.  


The device might be not detected by the driver if it is in a mode where it sends data rarely, either with a huge send interval or with a measurement function that delivers a very low data rate, e.g.  temperature measurements with K type sensor. Then it should be set to a mode with higher data rate during the initialisation of the driver.
If several devices of the Metrahit 27x family are used on the same RS232 interface using cascaded ''RS232'' interfaces, they need to be set to different device addresses from 1 to 15. In opposite to what the manual says, it seems that the device address 15 can be used, too. Using several devices on the same RS232 interface is an untested feature.


Please contact [[User:Matthias Heidbrink | Matthias']] if you can test one of the untested features.
-->
-->


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|-
|-
| rowspan="3" | MΩ
| rowspan="3" | MΩ (Insulation)
| 30 MΩ
| 30 MΩ
| 10 kΩ
| 10 kΩ
| rowspan="2" | ±(2% + 10)
| rowspan="2" | ±(2% + 10)
| "
| "
| Test voltage selectable 50/100/250/500 V
| Insulation measurement, test voltage selectable 50/100/250/500 V


|-
|-
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| 3 GΩ
| 3 GΩ
| 1 MΩ
| 1 MΩ
| ±(2% + 10)
| ±(3% + 10)
| "
| "
| "
| "
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|-
|-
| Pt100/Pt1000<br> +100.0 - 850.0 °C
| Pt100/Pt1000<br> +100.0 - 850.0 °C
| rowspan="2" | ±(0.5% + 5)
| rowspan="2" | ±(0.5K + 5)
| "
| "
|
|
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|   
|   
|  
|  
| style="background: #ff0000; "| mqflags += HOLD
| mqflags += HOLD
| Disabled while IR interface is active on [[User:Matthias Heidbrink | Matthias']] test device.
|  
   
   
|-
|-
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|   
|   
|  
|  
| style="background: #ff0000; "| mqflags += MIN
| mqflags += MIN
| Influences only display, via IR flag is set, but actual current value is delivered.
|  
   
   
|-
|-
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|   
|   
|  
|  
| style="background: #ff0000; "| mqflags += MAX  
| mqflags += MAX  
| Influences only display, via IR flag is set, but actual current value is delivered.
|  


|-
|-
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The column "sigrok result" contains in short form what the driver generates for the resp. data type.
The column "sigrok result" contains in short form what the driver generates for the resp. data type.


This device has an uncommon input impendance of 2.1 MΩ in AC/DC voltage measurement modes.


[[Category:Device]]
[[Category:Device]]
[[Category:Multimeter]]
[[Category:Multimeter]]
[[Category:Planned]]
[[Category:Planned]]

Latest revision as of 20:52, 20 December 2016

Gossen Metrawatt 27I
Status planned
Counts 31000
IEC 61010-1 CAT II 600 V
Connectivity Infrared (RS232/USB)
Measurements voltage, resistance, temperature, diode, continuity
Features autorange, data hold, backlight, insulation measurement, data logging
Website [1]

Please note: This page is a work in progress and still partly incorrect.

The Gossen Metrawatt Metrahit 27I is a 3100/31000 counts 600 V CAT II handheld digital multimeter with bidirectional IR (RS232/USB) connectivity. It supports milliohm and insulation (megaohm) measurements and has data logging capabilities.

There are two versions of this device, an older one with yellow rotary switch and a newer one with red rotary switch. They also have different power supply connectors.

Hardware

  • Power supply:
    • Battery: 3x 1,2 V NiMH rechargeable batteries
    • External power supply NA HIT 27 (Art. Z218J) by Gossen Metrawatt, 5V, 600 mA (newer version)
  • Fuse:
    • FF (UR) 1,6 A/1000 V AC/DC (10 kA) 6,3 mm x 32 mm

Photos

Communication Protocol

The complete description is available on request from the manufacturer.


Measurement functions and ranges

Measurement function Range Resolution Accuracy sigrok result Remarks
V= 3 V 100 μV ±(0.1% + 10) mq V, unit V, mqflags DC
30 V 1 mV ±(0.1% + 5) "
300 V 10 mV "
600 V 100 mV "
V≈ 3 V 100 μV ±(0.2% + 10) mq V, unit V, mqflags AC
30 V 1 mV "
300 V 10 mV "
600 V 100 mV "
mΩ@1A 3 mΩ 0.001 mΩ ±(1% + 10) mq Res., unit Ω, mqflags - 4-wire Kelvin measurement
30 mΩ 0.001 mΩ ±(0.5% + 10) " "
300 mΩ 0.01 mΩ " "
mΩ@200 mA 30 mΩ 0.01 mΩ ±(0.25% + 10) " "
300 mΩ 0.01 mΩ " "
3 Ω 0.1 mΩ " "
30 Ω 1 mΩ " "
Ω 300.00 Ω 1 mΩ ±(0.1% + 10) " ZERO with yellow button
3.0000 kΩ 10 mΩ ±(0.1% + 5) " "
30.000 kΩ 100 mΩ "
300.00 kΩ 1 Ω "
3.0000 MΩ 10 Ω "
30.000 MΩ 100 Ω ±(1.5% + 10) "
MΩ (Insulation) 30 MΩ 10 kΩ ±(2% + 10) " Insulation measurement, test voltage selectable 50/100/250/500 V
300 MΩ 100 kΩ " "
3 GΩ 1 MΩ ±(3% + 10) " "
Cont. 310 Ω 100 mΩ ±(1% + 5) mq Res., unit Ω, mqflags - Signal < about 10 Ω
Diode 3 V 100 µV ±(1% + 5) mq V, unit V, mqflags DC,DIODE
Hz 300.00 Hz 0.01 Hz ±(0.05% + 5) mq Freq., unit Hz, mqflags AC
3.000 kHz 0.1 Hz "
°C Pt100/Pt1000
–200.0 - +100.0 °C 		0.1 °C ±(1 K + 5) mq Temp., unit °C, mqflags -
Pt100/Pt1000
+100.0 - 850.0 °C 		±(0.5K + 5) "
Ni 100/Ni1000
-60-+180 °C 		" Not tested yet due to lack of corresponding sensor.
°F " " " mq Temp., unit °F, mqflags - Details and ranges like °C.
Data Hold mqflags += HOLD
MIN mqflags += MIN
MAX mqflags += MAX

The Accuracy row was simplified, see manual for exact specs.

The column "sigrok result" contains in short form what the driver generates for the resp. data type.

This device has an uncommon input impendance of 2.1 MΩ in AC/DC voltage measurement modes.

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