Description
FCM-400 Flexible AC/DC Current Tester
The FCM-400 Flexible AC/DC Current Tester is a portable current measuring instrument designed for AC and DC current measurements, particularly for monitoring anticorrosion currents in pipelines and diagnosing equipment deterioration on steel towers. Its flexible clamp sensor allows current measurement around conductors and objects that are difficult to access with conventional rigid clamps.
The instrument features a 450 mm CT opening diameter and three manually selectable measuring ranges of 3 A, 30 A, and 300 A, with a minimum resolution of 0.001 A. It measures AC current in RMS and DC current, using an LCD display with data hold functionality. A DC zero-adjustment function is also provided for offset correction before measurement.
Key Features – FCM-400 Flexible AC/DC Current Tester
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AC/DC Current Measurement: Measures AC (RMS) and DC current with selectable 3 A, 30 A, and 300 A ranges.
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Flexible Clamp Sensor: Bendable sensor with a 450 mm CT opening diameter for measuring around large or difficult-to-access objects.
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High Measurement Resolution: Minimum resolution of 0.001 A.
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Pipeline Anticorrosion Monitoring: Suitable for measuring anticorrosion currents in pipelines and diagnosing equipment deterioration on steel towers.
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Data Hold and DC Zero Adjustment: Includes a data hold function and zero-offset adjustment for DC current measurements.
Documents
Instruction Manual: e-ma-fcm-100.pdf
Additional Information
Sensing method: |
Split type CT with array of hole element sensors |
Inside diameter of CT: |
φ450mm |
Lead length: |
Approx.2m (From measuring unit to CT) |
Display: |
LCD max.3200 count with annunciators |
Range selector: |
3 range manual by rotary switch |
Buzzer rumbling: |
The buzzer rumbles when The power is turned on/turned off The range switch is changed The data hold switched on The measured data is displayed "OL" The continuity check finds that the resistance is below 40 Ω |
Jaw opening capability: |
55mmφ |
Over range indication: |
"OL" mark on LCD |
Data hold indication: |
"DH" mark on LCD |
Sampling: |
2 times/sec |
Withstanding Voltage: |
AC 2200V/1 minute |
Data hold function: |
Freeze the displayed value by D.H switch |
Zero(offset) adjustment: |
By zero(0) SET switch (DC current only) |
Storage Temperature: |
-10~60℃, < 70%RH (without condensation) |
Low battery indication: |
"B" mark on LCD |
Auto power off: |
Approx. 10 minutes after power on |
Power supply: |
1.5V(AA size or UM-3) battery×6 |
Size: |
Main unit:159(W)×105(H)×53(D)mm |
Accessories: |
Hard carrying case:1 || Instruction manual:1 || Test lead:1set || Batteries:2 |
Mesuring function: |
AC (RMS)/DC current |
Limitation of circuit voltage: |
Less than AC 500V |
Measuring ranges: |
AC/DC 3A/30A/300A |
A/D conversion: |
Dual slope integration method |
Accuracy: |
±10%rdg±10dgt |
Min. resolution: |
0.001A |