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273 Branchport Avenue
Long Branch, NJ 07740
(800) 631-2148
www.wheelockinc.com
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
MODEL NUMBER: MTH-24
GENERAL:
The MTH-24 Multi-Tone Horn is a loud, attention getting alert designed for use in noisy and/or large locations where two different
audible appliances are required at one location.
The MTH-24 functions as a telephone extension alert because it provides a pulsed warble tone (1 second on and 7 seconds off) which
can be activated by a telephone systems interrupted or continuous dry contact closure. Additionally, it functions as an auxiliary alert
because it also provides a steady tone which follows the contact closure of a door/service push-button, time clock, alarm systems, etc.
When both alerting tones are activated, the steady tone will take priority over the warble tone.
If required, the warble tone can be used as the auxiliary alert, and the priority tone can be used as the telephone alert. As shown in
Figure 1, the MTH-24 consists of dual tone generator, amplifier, timer for the warble tone, priority circuit and volume control built-in
to a weather resistant speaker horn for indoor and outdoor use. A Wheelock RPS-2406, 24VDC power supply is included to power
the MTH-24. Multiple units can be connected in parallel where required.
NOTE: All CAUTIONS and WARNINGS are identified by the symbol
WARNING:
READ THESE INSTRUCTIONS CAREFULLY.
FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION,
INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD
RESULT IN PROPERTY DAMAGE, SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
TELEPHONE
CONTACT
CLOSURE
DOOR/SERVICE PUSHBUTTON,
TIMECLOCK OR ALARM SYSTEM
Copyright 2002 Wheelock, Inc. All rights reserved.
Thank you for using our products.
INSTALLATION INSTRUCTIONS
SYSTEM
DRY
CONTACT
CLOSURE
+
RPS-2406
POWER
-
SUPPLY
Figure 1: Circuit Block Diagram
MULTI-TONE HORN
. All warnings are printed in bold capital letters.
FAILURE TO COMPLY WITH ANY OF THE
WARBLE
TONE
TIMER
GENERATOR
PRIORITY
CIRCUIT
DUAL
AMP
TONE
VOLUME
CONTROL
MTH-24
P81543 G
Sheet 1 of 5
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Summary of Contents for Wheelock MTH-24
- Page 1 The MTH-24 functions as a telephone extension alert because it provides a pulsed warble tone (1 second on and 7 seconds off) which can be activated by a telephone systems interrupted or continuous dry contact closure. Additionally, it functions as an auxiliary alert because it also provides a steady tone which follows the contact closure of a door/service push-button, time clock, alarm systems, etc.
-
Page 2: Specifications
Table 1 shows the sound pressure level performance of the MTH-24, and Table 2 provides a guide to horn spacing, area coverage, and sound pressure level. Table 1: Sound Pressure Level Performance Sound Pressure Level (dB at 24 VDC) Feet On... -
Page 3: Mounting Information
MOUNTING INFORMATION: The MTH-24 may be surface mounted by simply using the holes in the swivel base to locate and drill mounting holes. The mounting base is also fully adjustable in both the vertical and horizontal planes; See Figure 2. -
Page 4: Troubleshooting Chart
Wheelock. No part of the Series MTH products shall be decomposed, disassembled or reverse engineered. -
Page 5: Limited Warranty
(as determined by date code). Correction of defects by repair or replacement shall be at Wheelock's sole discretion and shall constitute fulfillment of all obligations under this warranty. THE FOREGOING LIMITED WARRANTY SHALL IMMEDIATELY TERMINATE IN THE EVENT ANY PART NOT FURNISHED BY WHEELOCK IS INSTALLED IN THE PRODUCT.
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