Emos MD-420, Manual

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4
Measurement category: CAT III (300 V)
Enclosure: IP20
Dimensions 158 × 75 × 35 mm
Weight: 200 g (batteries included)
Accuracy
Accuracy is defined for the period of one year since calibration of
the device at 18 °C to 28 °C with relative humidity of up to 75 %.
Measurement accuracy is stated as: ± [(% of reading) + (least
significant digit)].
Direct Voltage (DC)
Range Resolution Accuracy
200 mV 0.1 mV
+ (0.8 % + 5)
2 V 0.001 V
20 V 0.01 V
200 V 0.1 V
300 V 1 V + (1 % + 5)
Input impedance: 10 MΩ
Overload protection: 300 V DC/AC rms
Maximum input voltage: 300 V DC
Alternating Voltage (AC)
Range Resolution Accuracy
2 V 0.001 V
+ (1 % + 5) 20 V 0.01 V
200 V 0.1 V
300 V 1 V + (1.2 % + 5)
Input impedance: 10 MΩ
Frequency range: 40 Hz to 400 Hz
Overload protection: 300 V DC/AC rms
Note: It is an average value corresponding to a calibrated effective
sine wave.
Max. input voltage: 300 V AC rms
Direct Current (DC)
Range Resolution Accuracy
200 µA 0.1 µA
+ (1.2 % + 5)
2 000 µA 1 µA
20 mA 0.01 mA
200 mA 0.1 mA
2 A 0.001 A
+ (2 % + 10)
10 A 0.01 A
Overload protection:
µA and mA range: F 250 mA L 300 V fuse
10 A range: F 10 A L 300 V fuse
Maximum input current:
INPUT socket max. 200 mA
10 A socket max. 10 A
(when measuring current higher than 2 A, do not measure for
longer than 15 seconds and further measurements can only be
repeated after 15 minutes)
Alternating Current (AC)
Range Resolution Accuracy
200 µA 0.1 µA
+ (1.5 % + 5)
2 000 µA 1 µA
20 mA 0.01 mA
200 mA 0.1 mA
2 A 0.001 A
+ (3 % + 10)
10 A 0.01 A
Overload protection:
µA and mA range: F 250 mA L 300 V fuse
10 A range: F 10 A L 300 V fuse
Maximum input current:
INPUT socket max. 200 mA
10 A socket max. 10 A
(when measuring current higher than 2 A, do not measure for
longer than 15 seconds and further measurements can only be
repeated after 15 minutes)
Frequency range: 40 Hz to 400 Hz
Note: It is an average value corresponding to a calibrated effective
sine wave.
Direct Current
(Measurement Using a Clamp – Optional
Accessory to MD-420)
Range Resolution Accuracy
measurement 200 A 0.1 mV/0.1 A
+ (1.2 % + 5)
measurement 1 000 A 1 mV/1 A
Maximum input voltage: 200 mV DC
Alternating Current
(Measurement Using a Clamp –
Optional Accessory to MD-420)
Range Resolution Accuracy
measurement 200 A 0.1 mV/0.1 A
+ (1.5 % + 5)
measurement 1 000 A 1 mV/1 A
Maximum input voltage: 200 mV AC
Frequency range: 40 Hz to 400 Hz
Note: It is an average value corresponding to a calibrated effective
sine wave.
Resistance
Range Resolution Accuracy
200 Ω 0.1 Ω + (1.2 % + 5)
2 kΩ 0.001 kΩ
+ (1 % + 5) 20 kΩ 0.01 kΩ
200 kΩ 0.1 kΩ
2 MΩ 0.001 MΩ + (1.2 % + 5)
20 MΩ 0.01 MΩ + (1.5 % + 5)
Open-circuit voltage: 1 V
Overload protection: 300 V DC/AC rms
Temperature
Range
Resolu-
tion
Accuracy
-20 °C ~ 1 000 °C 1 °C
-20 °C ~ 0 °C: + (5 % + 4)
0 °C ~ 400 °C: + (1 % + 3)
400 °C ~ 1 000 °C: + (2 % + 3)
0 °F ~ 1 800 °F 1 °F
0 °F ~ 50 °F: + (5 % + 8)
50 °F ~ 750 °F: + (1 % + 6)
750 °F ~ 1 800 °F: + (2 % + 6)
Capacity
Range Resolution Accuracy
20 nF 0.01 nF + (8 % + 10)
200 nF 0.1 nF
+ (5 % + 5)
2 µF 0.001 µF
20 µF 0.01 µF
200 µF 0.1 µF
1,000 µF 1 µF + (8 % + 10)
Open-circuit voltage: 1 V
Transistor hFE Test
Range hFE
Testing cur-
rent
Testing volt-
age
PNP and NPN 0 ~ 1 000 Ib ≈ 2 µA Vce ≈ 1 V