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Haefely AG
4762 Range Extender

4762 Range Extender

Product catalog summary

Product Overview:
This document details the High Precision Current Range Extender, also known as the Current Capacitor, designed for extending current range in capacitance measurements. It features electronically controlled current transformation with divider measurements of 1:10 and 1:100, housed in a portable casing with top panel terminals.

Features & Benefits:

Ideal for extending measurement range of high capacitances.
Wide operating current range with a ratio of Imax : Imin = 4000 : 1.
Ensures very accurate measurements even under heavy burdens.
Negligible transformer error, eliminating the need for correction factor calculations for measured capacitance and tan δ.

Technical Specifications:

Current Ratios: 1:10 and 1:100.
Primary Current Range: 10 mA to 40 A (1:10), 100 mA to 400 A (1:100).
Secondary Current Range: 1 mA to 4 A.
Maximum Burden: 1 Ω.
Current Error: Less than 0.002%.
Phase Angle Error: Less than 0.05 min or 1.5 x 10^-5 radian (tan δ) at burden < 0.1 Ω; Less than 0.15 min or 4 x 10^-5 radian (tan δ) at burden < 1 Ω.
Frequency Range: 45 to 65 Hz.
Dimensions: 305 x 180 x 255 mm (12 x 7.1 x 10 inches).
Weight: 9.5 kg (20.9 lbs).
Power Supply: 230 or 115 VAC, 50/60 Hz.

Scope of Supply:
The package includes the Current Comparator 4762 (specify 115V or 230V type when ordering) and a mains cable.

Contact Information:
Haefely Test AG has offices in Europe, China, and North America. Contact details include phone numbers and email addresses for each region.

Catalog excerpts

4762 High Precision Current Range Extender (Current Capacitor) This electronically controlled current transformer is TECHNICAL SPECIFICATIONS specifically designed for current range extension in capacitance measurements. It has divider measurements of 1:10 and 1:100. Current Ratio 1 : 10 1 : 100 min. primary current 10 mA 100 mA max. primary current 40 A 400 A min. secondary current 1 mA 1 mA max. secondary current 4A 4A Burden Max. 1 Current error < 0.002 % Phase angle @ burden < < 0.05 min or -5 0.1 < 1.5 x 10 radian (tan ) Phase angle @ burden < < 0.15 min or -5 1 < 4 x 10 radian (tan ) Frequency Range 45 to 65 Hz Dimension LxWxH 305 x 180 x 255 mm (12 x 7.1 x 10’’) Weight 9.5 kg (20.9 lbs) Mains 230 or 115 VAC, 50/60 Hz The special transformer is accommodated inside a portable casing with all terminals on the top panel. FEATURES & BENEFIITS suitable for range measurement of high capacitances Very wide operating current range Imax : Imin = 4000 : 1 Very accurate measurement, even with heavy burdens Negligible transformer error eliminates calculation of measured C and tan correction factors SCOPE OF SUPPLY Current Comparator 4762 (115 or 230V type -> specify in order), Mains cable OFFICES: Europe Haefely Test AG Birsstrasse 300 4052 Basel Switzerland + 41 61 373 4111 + 41 61 373 4912 [email protected] China Haefely Test AG Representative Beijing Office 8-1-602, Fortune Street No. 67, Chaoyang Road, Chaoyang District Beijing, China 100025 + 86 10 8578 8099 + 86 10 8578 9908 [email protected] North America Hipotronics, Inc. 1650 Route 22 N Brewster, NY 10509 United States HAEFELY HIPOTRONICS has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.

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4762 Range Extender

4762 Range Extender

Catalog excerpts

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