Data Sheet

Model
Sensitivity
(mV/A)
Peak
current
(A)
Noise
max
(mVp-p)
LF (-3dB)
bandwidth
(kHz)
Typical LF
(<1%)
bandwidth
(kHz)
Peak
di/dt
(kA/µs)
HF (-3dB)
bandwidth
(MHz)
Coil length
1000mm
CMC015 200.0 37.5 4.0 19.0 50.0 4.0 11.0
CMC03 100.0 75.0 4.0 6.0 15.0 8.0 13.0
CMC06 50.0 150.0 4.0 1.9 5.0 16.0 14.0
Output ±7.5V peak corresponding to ‘Peak Current’ into >100kΩ (e.g. DC 1MΩ oscilloscope)
Accuracy Variation with conductor position in the coil typically ±3% of reading (for a 5cm
2
conductor)
Linearity (with current magnitude) 0.05% of reading
Calibration Calibrated to ±0.5% reading with conductor central in the coil loop
DC offset ±3mV maximum at 25
0
C
Temperature Coil and cable -20
0
C to +90
0
C. Integrator 0 to +40
0
C
di/dt ratings These are ‘absolute maximum di/dt ratings’ and values must not be exceeded:
Absolute max. peak di/dt: 70kA/µs
Absolute max. rms di/dt: 1.5kA/µs
Coil voltage 10kV peak
Safe peak working voltage to earth. Rating established by a 15kVrms, 50Hz, 60sec flash test. Information
about continuous use of the coils at high voltage can be obtained from PEM.
q
Coil length (circumference)
500mm, 700mm, 1000mm - longer coils available on request
w
Coil cross-section (thickness)
8.5mm max (14mm with removeable silicone sleeve – only for
mechanical protection)
e
Cable length
2.5m and 4m as standard (connecting cable coil to integrator)
- longer cables available on request.
r
Battery options
B-Standard: 4 x AA 1.5V alkali batteries. Lifetime typically 25 hours
R-Rechargeable: 4 x AA 1.2V NiMH batteries. Lifetime
typically 10 hours. External adaptor recharges
batteries and powers unit.
t
Socket for external power adaptor (1.3mm diameter)
(adaptor available from PEM as an option)
y
Electronics enclosure
Dimensions H=183mm, W=93mm, D=32mm
u
Output BNC socket
Supplied with 0.5m BNC:BNC cable.
Key features
q
w
e
e
t
y
u
r
CMC