Mine-used Sensors ModelKTA7 Mine-used Safe Coupler

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Tiandi (Changzhou) Automation Co., Ltd.

. No. 1, Mushu Road, Changzhou, Jiangsu

+86-519-86974971, +86-519-86966044

Larger photo of Mine-used Sensors ModelKTA7 Mine-used Safe Coupler

Mine-used Sensors ModelKTA7 Mine-used Safe Coupler


company	Tiandi (Changzhou) Automation Co., Ltd.
Categories	LED Displays
Update	2012-05-29
Original Region	China
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Mine-used Sensors ModelKTA7 Mine-used Safe Coupler

Model KTA7 Mine-used Safe Coupler is equipped products for Model KTH8 Intrinsic Safety Automatic Telephone and Automatic Telephone with Anti-noise, can connect with surface program-controlled exchanges or dispatching exchanges to establish Intrinsic Safety dispatching and communication system with automatic dialing for mine underground.

Function and features

Convert Non-intrinsic Safety ring-current, direct current to Intrinsic Safety ring-current and direct current;

Bidirectional transmission of voice signals;

Transfer dialing signals of intrinsic safety telephones (T/P compatible).

Technical Parameters

Explosionproof Type: Mine-used general type and intrinsic safety type, marked as [Exib] I

Input at Non-intrinsic Safety Side:
Max. input DC voltage is 60V, maximum input DC current is 60 mA;
Max. input voltage of ring-current is 90 V, max. input current of ring-current is 100 mA

Input at Intrinsic Safety Side:
Maximum open-circuit DC voltage is 60 V, maximum short-circuit DC current is 29 mA;
Maximum open-circuit voltage of ring-current is 56 V, maximum short-circuit current of ring-current is 34 mA

Voice Transmission Attenuationless than 0.5 dB

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