Operation Manual

Chapter II
MX 650 / MX 655
28
5.2.4. Alternating current
(MX 650 automatic ranges)
Range Meas. range Frequency Resol. Accuracy
40 A 0.05 to 39.99 A 50…500 Hz
500…1000 Hz
0.01 A
1.9% L + 5 ct
3% L + 5 ct
400 A 40.0 to 400.0 A 50…500 Hz
500…1000 Hz
0.1 A
1.9% L + 5 ct
3% L + 5 ct
1000 A 400 to 1000 A 50…500 Hz
500…1000 Hz
1 A
1.9% L + 5 ct
3% L + 5 ct
Protection against overloads: 1000 ARMS
(in 40 A range) and 1500 Arms (in 400 A and 1000 A ranges)
(MX 655)
Range Meas. range Frequency Resol. Accuracy
40 A 0.05 to 39.99 A 50...60 Hz
60...500 Hz
500…1000 Hz
0.01 A
1.9% L + 5 ct
2.5% L + 5 ct
3.5% L + 5 ct
400 A* 40.0 to 400.0 A 50…60 Hz
60…500 Hz
500…1000 Hz
0.1 A
1.9% L + 5 ct
2.5% L + 5 ct
3.5% L + 5 ct
1000 A* 400 to 1000 A 50…60 Hz
60…500 Hz
500…1000 Hz
1 A
1.9% L + 5 ct
2.5% L + 5 ct
3.5% L + 5
ct
Protection against overloads: 1200 ARMS
*Position A on the switch corresponds to the two automatic
calibres, 400 A~ and 1000 A~.
5.2.5. Resistance (Ω
ΩΩ
Ω) (automatic ranges)
Range Meas. range Resolution Accuracy
400 Ω 0.2 to 399.9 Ω 0,1 Ω 1%L + 3 ct
4000 Ω 400 to 4000 Ω 1 Ω 1%L + 2 ct
Protection against overloads: 600 Vrms
Continuity detection threshold: R < 75 Ω ± 25 Ω.
5.2.6. Diode
Test current Open circuit voltage
MX 650
0.6 mA max .3 V
MX 655
max 1.7 mA max 6 V
Protection against overloads: 600 Vrms
5.2.7. Frequency Hz (automatic ranges)
• For current
Range Meas. range Resol. Accuracy Sensitivity
4000 Hz 20 to 3999 Hz 1 Hz 0.1% L + 1 ct 2 ARMS
10 kHz 4 to 10 kHz 10 Hz 0.1% L + 1 ct 5 ARMS
• For voltage
Range Meas. range Resol. Accuracy Sensitivity
4000 Hz 10 to 3999 Hz 1 Hz 0.1% L + 1 ct 5 Vrms
10 kHz 4.00 to 10.00 kHz 10 Hz 0.1% L + 1 ct 10 Vrms
5.3. Safety
IEC 61010-1 Ed.95 and IEC 61010-2-032 Ed.93:
- Insulation: class II
- Pollution level: 2
- Altitude: < 2000 m
- Installation category: CAT III 600 V