EA002 2/10/50 Turn Clamp Coil Adapter Specifications
General Specifications
Adapter Connection
4x 4mm safety sockets mounted on the rear of the unit
Adapter Dimensions
28cm x 12cm x 6cm
Colour
Cream
Connection to Calibrator
Via supplied 4mm to 4mm connection leads (x2) to 3000 series current terminals
Coil Configuration
2 Turn (LHS) : 10 Turn (RHS) : 50 Turn (CENTRE)
Coil Type
High accuracy balanced configuration
Min. internal jaw dimensions
10mm (2 Turn & 10 Turn) : 25mm (50 Turn)
Maximum Current
30A
Maximum RMS voltage
4V
Frequency Range
DC to 500Hz
Construction
Loose wound coil (for heat dissipation) in moulded ABS enclosure
Durability
Fully enclosed coil for maximum protection from mechanical damage
Compatibility
Designed for use with Transmille 3000 Series calibrators and ProCal Software
2 Turn Coil Accuracy (Input 0 to 30A : Freq. DC - 30Hz to 60Hz : Effective Output 0 to 60A)
90 Day Rel.
180 Day Rel.
1 Year Rel.
2 Year Rel.
%
A
%
A
%
A
%
A
Effective accuracy - Coil only (wound clamps)
0.35 + 0.008 0.35 + 0.008 0.35 + 0.008 0.35 + 0.008
Effective accuracy - Coil only (hall effect clamps)
0.48 + 0.07 0.48 + 0.07 0.48 + 0.07 0.48 +
0.07
Total uncertainty with 3050 (All clamps)
0.51 + 0.09 0.51 + 0.09 0.52 + 0.09 0.56 +
0.10
Total uncertainty with 3041 (wound clamps)
0.36 + 0.028 0.36 + 0.028 0.36 + 0.028 0.38 + 0.036
Total uncertainty with 3041 (hall effect clamps)
0.49 + 0.090 0.49 + 0.090 0.49 + 0.090 0.50 + 0.098
Total uncertainty with 3010 calibrator (wound clamps)
0.36 + 0.010 0.36 + 0.010 0.36 + 0.010 0.37 + 0.010
Total uncertainty with 3010 (hall effect clamps)
0.48 + 0.072 0.49 + 0.072 0.49 + 0.072 0.49 + 0.072
10 Turn Coil Accuracy (Input 0 to 30A : Freq. DC - 30Hz to 60Hz : Effective Output 0 to 300A)
90 Day Rel.
180 Day Rel.
1 Year Rel.
2 Year Rel.
%
A
%
A
%
A
%
A
Effective accuracy - Coil only (wound clamps)
0.41 + 0.01 0.41 + 0.01 0.41 + 0.01 0.41 +
0.01
Effective accuracy - Coil only (hall effect clamps)
0.59 + 0.11 0.59 + 0.11 0.59 + 0.11 0.59 +
0.11
Total uncertainty with 3050 (All clamps)
0.61 + 0.13 0.62 + 0.13 0.62 + 0.13 0.65 +
0.14
Total uncertainty with 3041 (wound clamps)
0.42 + 0.03 0.42 + 0.03 0.42 + 0.03 0.43 +
0.04
Total uncertainty with 3041 (hall effect clamps)
0.60 + 0.13 0.60 + 0.13 0.60 + 0.13 0.61 +
0.14
Total uncertainty with 3010 calibrator (wound clamps)
0.41 + 0.012 0.42 + 0.012 0.42 + 0.012 0.42 + 0.012
Total uncertainty with 3010 (hall effect clamps)
0.59 + 0.112 0.59 + 0.112 0.60 + 0.112 0.60 + 0.112
50 Turn Coil Accuracy (Input 0 to 30A : Freq. DC - 30Hz to 60Hz : Effective Output 0 to 1500A)
90 Day Rel.
180 Day Rel.
1 Year Rel.
2 Year Rel.
%
A
%
A
%
A
%
A
Effective accuracy - Coil only (wound clamps)
0.24 + 0.04 0.24 + 0.04 0.24 + 0.04 0.24 +
0.04
Effective accuracy - Coil only (hall effect clamps)
0.45 + 0.42 0.45 + 0.42 0.45 + 0.42 0.45 +
0.42
Total uncertainty with 3050 (All clamps)
0.48 + 0.44 0.48 + 0.44 0.49 + 0.44 0.53 +
0.45
Total uncertainty with 3041 (wound clamps)
0.25 + 0.06 0.26 + 0.06 0.26 + 0.06 0.28 +
0.07
Total uncertainty with 3041 (hall effect clamps)
0.46 + 0.44 0.46 + 0.44 0.46 + 0.44 0.47 +
0.45
Total uncertainty with 3010 calibrator (wound clamps)
0.25 + 0.042 0.25 + 0.042 0.25 + 0.042 0.26 + 0.042
Total uncertainty with 3010 (hall effect clamps)
0.45 + 0.42 0.46 + 0.42 0.46 + 0.42 0.46 +
0.42
Accuracy is dependant on proper alignment of the clamp meter within the coil
Certain clamp meters have alignment marks which should be aligned with the centre of the coil.
Certain types of clamp meter may have additional errors, or be outside the range which can be driven by the 3041/3010 directly
Uncertainty calculated as the square root of the square of coil ac square of calibrator accuracy
using empirical data obtained for both wound & hall effect instruments from a wide range of manufacturers
Clamp coil adaptor is supplied complete with workstation incorporating alignment marks (size 275x295x45mm)
EA002 2 / 10 / 50 Turn Clamp Coil Adapter
V4.00
