9409 E. 55th Pl. S. * Tulsa, OK 74145 * (918) 622-7052 * Fax (918) 664-8557 RELAY INSTRUCTION MANUAL Relays MRLY and MSRY All rights reserved. No part of this manual may be reproduced or utilized in any form or by any means, electronic or mechanical, without the prior written permission of Qual-Tron, Inc.
Relay Manual Table of Contents Section 1: MIDS Single Channel Relay (MRLY) Description Features Operation RF Link Emplacement Considerations Section 2: Channel to Frequency Frequency to Channel Section4: ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… Page 5 Page 5 Page 6 Page 6 Page 6 Page 6 Page 7 Page 7 Frequency/Channel Calculations ……………
Section 1: MIDS Single Channel Relay (MRLY) Description The MIDS MRLY is a single channel, fixed frequency relay that receives and re-transmits RF signals from a field of MIDS and EMIDS sensors. This field may be any combination of sensors, such as seismic, magnetic, IR, or break wire. A receiver, transmitter, and control electronics module are encapsulated in the Lexan plastic housing. The repeated signal will be on the same RF frequency as the signal that was received from the original detector.
A. Operation Install the desired number of batteries and the antenna to make the MRLY operational. The MRLY should be placed between the transmitter and receiver. B. Modes of Operation The MRLY has two modes of operation. These modes are controlled by internal tilt switches. Normal Operation – The MRLY may be put in normal mode by placing it with the antenna up on a flat level location. Power Off – Power is turned off by tilting the unit in any direction past 15°.
Section 2: EMIDS Multi-Channel Relay (MSRY) Description The EMIDS multi-channel MSRY relay is a self-contained unit that will receive and retransmit RF signals from compatible transmitters. The MSRY relay is programmed using a PC and the supplied software. While programming the unit, the receiver channel, transmit channel, unit ID code, and voltage level from internal batteries are displayed. The unit will transmit a test message when the test button is activated.
Operation The MSRY must be programmed before being installed in the field. The MSRY is programmed using a computer and the supplied MSRY software. The MSRY connects to the PC by an RS232 9-pin data cable. NOTE: If the computer does not have an RS232 Serial Port, the purchase of an RS232 9-pin to USB conversion cable may be required. The receiver channel, transmit channel, format, and the MSRY ID code are set during the programming mode.
Emplacement Considerations The MSRY must be placed within the transmission range of the transmitter (2-10 miles). For the best results place the relay half way between the transmitter and the receiver on flat surfaces, or at the top of a hill or building. Battery The MSRY Relay incorporates two each 4-volt, 4.5-amp hour rechargeable sealed lead-acid batteries. The batteries are fully charged at Qual-Tron prior to shipment to provide a minimum of 9 volts.
Section 3: FREQ. RANGE LOW MID HIGH Frequency/Channel Calculations FREQUENCY RANGES FREQUENCY CHANNEL STEPS MIN MAX 138.025 154.000 25 kHz 154.005 162.000 5.0 kHz 162.00625 174.000 6.25 kHz CHANNEL MIN MAX 001 640 001 1600 001 1920 Channel to Frequency Calculation Channel * Channel Step + Min Frequency = Frequency for Channel Examples: - Low Band Channel 20 - 20 * 0.025 + 138 = 138.5 MHz - Mid Band Channel 300 - 300 * 0.005 + 154 = 155.
Section 4 FCC Notice / RF Exposure FCC Notices (U.S. Only) This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation.
