Transmille EA002 Data sheet

EA002 2-10-50 Turn 30A Clamp Coil Specifications Extended Specifications TRANSMILLE LTD

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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
Compatibilit

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.

%

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.

%

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.

%

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 accuracy + 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 Clamp Coil Specifications Extended Specifications
Due to continuous development specifications may be subject to change.

V4.00

EA002 Clamp Coil Specifications Extended Specifications TRANSMILLE LTD

DC Resistance

At Coil

0.09Ω

With Connection Leads 0.1Ω

Duty Cycle

10A Continuous
20A 2mins on ~ 5mins off
30A 30secs on ~ 5mins off

Inductance

Coil Only 120uH
Coil with typical clamp meter on 50 Turn coil 200uH
Coil with typical clamp meter on 10 Turn coil 50uH
Coil with typical clamp meter on 2 Turn coil 5uH

Specifications apply between 17°C and 27°C.
Outside this range an allowance of 0.18 x 1 Year Spec. per °C should be added.

EA002 Clamp Coil Specifications Extended Specifications
Due to continuous development specifications may be subject to change.

V4.00