AN ISO 9001 : 2000 CERTIFIED FIRM

EARTH LEAKAGE DETECTOR
As Per RDOS SPN-256/1971 (Rev. 2002)

Commonly knows as ELD, this equipment continuously monitors the insulation of a cable with respect to the earth. Widely used in railways to monitor signaling cables on AC and DC circuits. The leakage value can be pre-set by the user in the range of 2K ohm to 1Meg Ohm. Available in multiple 4channels i.e. 4/8/12 channels. The single/multi channel equipment has twin indicating arrangements of an audio alarm plus a panel meter. Also includes a built-in cable insulation tester.

DELAY TIMER (ON / OFF DELAY)
Type 1010-A/B

Delay timer is available from 1 sec to 60 minutes timings in 10 steps with a choice of ON/OFF delay. The timer is suitable for continuous working in railway signaling and indoor use. Two change-over un-energized contracts with 5 Amps rating are provided on DIN rail 35MM enclosure.

CABLE INSULATION TESTER TYPE-906

Cable insulation tester is similar to ELD with the most important difference that this monitors the signaling cables but only in unexercised mode with leakage value setting from 500K to 10MU. It has a special feature-in case a pair is energized the instrument automatically stops functioning.

FLASHER RELAY TYPE FR-101

Flasher Relay is used in railway signaling installations to give flashes at the rate of 40of 60 per minute. Potential free contacts are given to bear a load from 3 to 10mps in different models. It is so designed that the failure of any component results in no indication. Encased in a sheet metal box has also an over voltage protection. Available in different models to work at 12 or 24 or 60V DC or 110V AC.

FAIL SAFE TIMER
As Per IRS: S-61/2000

Fail safe Electronic timer replaces the thermal element relay used in signaling circuits. This fully solid state device is relay less and the time base is generated through a quartz crystal to give a high repeat accuracy. It is meant to control railway signaling circuits where a fixed delay of 60 or 120 seconds is required. It works on 24V DC