Gossen Metrawatt Metrahit 28C

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Gossen Metrawatt Metrahit 28C
Status planned
Counts 310000
IEC 61010-1 CAT II 250 V/CAT I 600 V
Connectivity Infrared (RS232/USB)
Measurements voltage, current, resistance, capacitance, temperature, continuity
Features autorange, data hold
Website [1]

The Gossen Metrawatt Metrahit 28C is a 310000 counts 250 V CAT II/600 V CAT I handheld digital multimeter and calibrator with IR (RS232/USB) connectivity.

Hardware

  • Power supply:
    • Battery: 3x 1,5 V IEC R 6, IEC LR 6 or corresponding rechargeable batteries
    • External power supply NA5/600 by Gossen Metrawatt, 5 V, 600 mA (proprietary 3-pin plug)
  • Fuses:
    • F1: Current: F 500 mA/250 V 5 x 20 mm
    • F2: Current: F 500 mA/250 V 5 x 20 mm
    • F3: Calibrator: M 125 mA/250 V 5 x 20 mm

Measurement functions and ranges

Measurement function Range Max. Resolution Accuracy sigrok result Remarks
V= 300 mV 1 μV ±(0.05% + 15) mq V, unit V, mqflags DC Accuracy with ZERO; resolution from 2 1/2 to 5 1/2 digits depending on menu rAtE (min. 0.0005 s in storage mode)
3 V 10 μV " "
30 V 100 μV " "
300 V 1 mV " "
600 V 10 mV " "
V≈ 300 mV 10 µV ±(0.5% + 30) (> 500 Digit)) mq V, unit V, mqflags AC, RMS To activate set mode V Hz, press orange button once.
3 V 100 μV ±(0.2% + 30) " "
30 V 1 mV " "
300 V 10 mV " "
600 V 100 mV " "
A= 3.0000 mA 10 nA 0.05% + 15 mq Curr., unit A, mqflags DC
30.000 mA 100 nA "
300.00 mA 1 µA "
A≃  3.0000 mA 100 nA 0.5% + 30 mq Curr., unit A, mqflags AC,RMS To activate set mode mA, press orange button once.
30.000 mA 1 µA "
300.00 mA 10 µA "
Ω 30.000 mΩ 0.01 mΩ 0.5% + 5 mq Res., unit Ω, mqflags - 4-wire Calvin measurement
300.00 mΩ 0.1 mΩ " "
3.0000 Ω 1 mΩ " "
30.000 Ω 1 mΩ " "
300.000 Ω 1 mΩ 0.07% + 20 (with ZERO) mq Res., unit Ω, mqflags -
3.00000 kΩ 10 mΩ 0.07% + 15 "
30.0000 kΩ 100 mΩ "
300.000 kΩ 1 Ω "
3.00000 MΩ 10 Ω "
30.0000 MΩ 100 Ω 1.5% + 15 "
Ω/Cont. 300 Ω 100 mΩ 0.5% + 5 mq Res., unit Ω, mqflags -
Diode 3 V 100 µV 0.5% + 5 mq V, unit V, mqflags DC, DIODE To active set mode Ω₂F, press orange button twice
Diode Zener 15 V 1 mV 1% + 5 mq V, unit V, mqflags DC, DIODE To active set mode Ω₂F, press orange button three times.


Cap. F 3.000 nF 1 pF 1.0% + 5 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 "
Hz≈ 300.00 Hz 0.1 Hz ±(0.05% + 5) mq Freq., unit Hz, mqflags AC To activate set mode V Hz, press orange button twice.
3.0000 kHz 0.1 Hz "
100.000 kHz 10 Hz "
°C/°F Pt100
–200.0 - +850 °C
0.1 K ±(1 K)/±(0.8 K)/±(0.5 % + 3) mq Temp., unit °C, mqflags -
Pt1000
–200.0 - +850.0 °C
±(0.8 K)/±(0.5 % + 3) "
Ni100
-60 - +180.0 °C
±(0.5% + 3) "
Ni1000
-60 - +180.0 °C
±(0.5% + 3) "
B (Pt30Rh-Pt6Rh)
+100.0 - +1820.0 °C
±(1 + 5K)/±(1 + 2K) "
E (NiCr-CuNi)
-270.0 - +1000.0 °C
±(1 + 5K) "
J (Fe-CuNi) -210 - +1200.0 °C ±(0.8% + 5) "
K (NiCr-Ni) -250-+1372.0 °C ±(0.8% + 5) "
L (Fe-CuNi) -200.0 - +900.0 °C ±(0.8% + 5) "
N (NiCrSi-NiSi) -270.0 - +1300.0 °C ±(0.8% + 5) "
R (Pt13Rh-Pt)
-50.0 - +1768.0 °C
±(1 + 2K) "
S (Pt10Rh-Pt)
-50.0 - +1768.0 °C
±(1 + 2K) "
T (Cu-CuNi) -270 - +400.0 °C ±(0.8% + 5) "
U (Cu-CuNi) -200.0 - +600.0 °C ±(0.8% + 5) "

The Accuracy row and °C/°F were simplified, see manual for exact specs.

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