Guardian Technologies Telephone HR71 User Manual

Industrial Communications Worldwide  
Industrial Ringdown/Autodialer Telephone  
Model HR71  
Installation & Operation  
P004205 Rev. B 11/23/2004 10:34  
7552 - 10th Street N.E. Calgary, Alberta, Canada T2E 8W1  
 
Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Overview  
HR 71 Industrial Ringdown/Autodialer Telephone  
The HR71 is a rugged industrial telephone designed to provide safe, reliable, point to point  
communication in harsh environments such as refineries, mills, plants, warehouses or areas with  
high humidity.  
The HR71 Telephone may be supplied with an optional Auto Dialer or dialing may be programmed  
through a PABX. If an Auto Dialer is ordered with the HR71 refer to the manual for the Auto Dialer  
for instructions on programming and for compliances.  
Features  
Enclosure  
16 AWG steel, zinc chromate plated and powder coated  
Epoxy Resin Coating  
encapsulates all parts on main circuit board  
resistant to corrosive agents (eg. H2S, SO2, and NH3), and high  
humidity  
Magnetic Reed Hook Switch  
no moving parts  
Surge Arrestor  
prevents damage to the electronic circuits in the event of a high  
voltage spike on telephone line  
Noise Reducing Microphone  
allows a high level of intelligibility in locations with high background  
noise.  
Heavy Duty Handset Cord  
withstands abusive use  
Hearing-Aid Compatibility  
compatible with inductively coupled hearing-aid devices  
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Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
5.2" [132mm]  
2.2" [56mm]  
5.0" [127mm]  
2.7" [69mm]  
Figure 1 - Overall Dimensions  
HOUSING  
FACEPLATE  
GASKET  
FUSE  
HOOK SWITCH/CRADLE  
SURGE ARRESTOR  
TERMINAL STRIP  
HARNESS PLUG  
Figure 2 - Installation  
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Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Installing the HR71  
Follow all appropriate electrical codes and use only approved electrical  
fittings for the installation.  
See: HR71 Drawing,  
Choose a wall location that is free of obstructions and permits space for ½”  
NPT conduit runs.  
Ensure mounting can support 4 lbs. (1.8 kg) and any additional foreseeable  
load.  
Remove the eight (8) cover screws from the front of the unit and carefully  
remove the front cover assembly. NOTE that the handset and all  
electronics are attached to the front plate. The front cover may be  
separated from the back box by disconnecting the harness plugs.  
See: HR71 Drawing,  
Attach the back box to the wall at the desired location using four (4) #8  
screws. If weather resistance is important in your application select  
washers that will assist in sealing the mounting holes.  
Connect cable or conduit (1/2 inch trade size) to the entrance at the bottom  
of the unit.  
Connect an approved earth ground to the terminal block.  
Bring cable into the enclosure through the conduit entrance and attach  
individual wires from the exchange (Tip/Ring/Ground) to the connector (Tip  
& Ring are not polarity sensitive). If a conduit hub is used, ensure it is  
grounded to the ground stud.  
Apply power to the system.  
The HR71 Telephone may be supplied with an optional Auto Dialer or  
dialing may be configured by the PABX. If an Auto Dialer is ordered with  
the HR71, refer to the manual for the Auto Dialer for instructions on  
programming and for compliances.  
Test the unit by calling to and from another unit on the exchange.  
Operating the HR71  
The HR71 Ringdown/Autodialer phone is designed for automatic calling  
simply by removing the handset from the cradle.  
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Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Engineering Specifications  
ELECTRICAL PERFORMANCE  
AUDIBLE RANGE FREQUENCY RESPONSE  
TRANSMIT OBJECTIVE LOUDNESS RATING (TOLR)  
RECEIVE OBJECTIVE LOUDNESS RATING (ROLR)  
SIDE TONE OBJECTIVE LOUDNESS RATING (SOLR)  
RINGER OUTPUT  
300 – 3400 HZ  
-41 +/- 4 dB  
TYPICAL 52 +/- 3 dB  
TYPICAL 11 +/- 4 dB  
>80 dB  
FCC RINGER EQUIVALENCE  
0.9B  
SET IMPEDANCE  
600 OHMS NOMINAL  
MAXIMUM LOOP  
15,000 FEET (4,600 METERS) OF 22 AWG  
COPPER  
ELECTRICAL REQUIREMENTS  
RINGER SENSITIVITY  
LINE VOLTAGE  
40 – 100 V, 16 – 25 HZ  
24 – 56 VDC  
LOOP CURRENT  
20 - 120 MA  
CONNECTION METHOD  
ENVIRONMENTAL  
SURGE ARRESTOR / TERMINAL BLOCK  
WEATHERPROOF  
ENCLOSURE NEMA 3R  
-40O TO +50O C  
TEMPERATURE  
MECHANICAL  
HOOK SWITCH (CRADLE SWITCH) LIFE  
BODY CONSTRUCTION  
>1 000 000 OPERATIONS  
16 GAUGE STEEL, ZINC CHROMATE PLATED  
AND POWDER COATED  
DIMENSIONS  
9 X 5 X 5.2 INCHES (229 X 127 X 132 MM)  
4 LBS (1.82 KG)  
NET WEIGHT  
HANDSET MATERIAL  
MICROPHONE  
HIGH IMPACT ABS  
NOISE REDUCING ELECTRET  
NOISE CANCELING DYNAMIC  
HEARING AID COMPATIBLE  
VERTICAL WALL  
OPTIONAL MICROPHONE  
RECEIVER  
STANDARD MOUNTING  
CONNECTION FITTINGS  
7/8” DIAM. OPENING FOR OWNER SUPPLIED  
FITTING  
HARDWARE MATERIAL  
STAINLESS STEEL  
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Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Warranty  
Guardian Telecom warrants your product to be free of defects in material and workmanship for a period  
of one year. Guardian Telecom will repair or replace any defective unit that is under warranty  
This warranty is null and void if any non-authorized modifications have been made to this product, or if  
it has been subjected to misuse, neglect, or accident. This warranty covers bench repairs only; such  
repairs must be made at Guardian Telecom or an authorized service depot. Guardian Telecom is not  
responsible for costs incurred for on-site service calls, freight, or brokerage.  
A return authorization must be obtained prior to warranty claims or repairs.  
Disclaimer  
The products covered by this manual are designed for use in Industrial Environments and/or Hazardous  
Locations. Due to the range of possible applications for these instruments the manufacturer will not be  
responsible for damages or losses of any kind suffered as a result of the use of this product, including  
consequential damages.  
Warning  
This device may be opened and reassembled by qualified personnel only, for the purposes of installing  
the product and replacing fuses, following the instructions in the product manual.  
High voltages may be present in this product when connected to telephone wiring.  
Service Telephone Number  
1-800-363-8010  
Guardian Telecom provides a customer service telephone number which is toll-free within North  
America. If you need assistance when installing or operating this product, please call the toll-free  
telephone number between regular business hours (8:00AM-5:00PM), Mountain Standard Time. If you  
are calling outside of regular business hours, please leave a detailed message, and a member of  
Guardian Telecom’s Service Department will return your call as soon as possible. If your product  
requires service, Guardian personnel will supply you with an RMA (return materials authorization)  
number over the telephone or through our web site product return page. This number must be included  
with your return address and the name of the person to contact.  
Guardian Telecom Inc.  
7552 - 10th Street N.E.  
Calgary, Alberta, Canada T2E 8W1  
Toll-free 1-800-363-8010  
Ph. (403) 258-3100  
Fax. (403) 253-4967  
Feedback  
Guardian Telecom continually strives to make reliable, durable, and easy to use products. If you, as an  
installer or user of our equipment, have any suggestions for improvements to this or any of our products  
or documents, including this manual, we would appreciate hearing from you.  
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Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Guardian Product Return  
Guardian products have been quality tested and are in full working order when shipped from  
the factory, given the rugged nature of these products, shipping is not expected to damage a  
unit. In the unlikely event of a malfunction, Guardian follows the three step procedure below.  
Step I - On-Site Correction  
The most common source of difficulties with a new product is improper installation in one of  
two ways: incorrect wiring connections or connection to an incorrect power source.  
Product wiring needs to be properly connected to the on-site wiring. Correct wiring  
instructions are shown in the user manual included with the product.  
Connecting a telephone to a standard power source, rather than tip & ring, will blow the  
telephone’s internal, user-replaceable fuse. In the event of fuse burn-out, disconnect the  
telephone from the power source, replace the fuse, and reconnect following the wiring  
diagrams provided with the product.  
Step II - Return Materials Authorization (RMA)  
When a product has been installed following user manual instructions, and the unit fails to  
operate, the user must contact Guardian Telecom to obtain authorization to return the  
product. This can be done by completing a RMA form online at  
manual.  
After providing information on the product, the owner and the nature of the problem,  
Guardian will issue a RMA number, to be shown on documentation returned with the  
product.  
In addition to the RMA number, shipping documents should include name, address and  
telephone number of the owner along with contact information for the person responsible  
for the repair and/or the user who identified the malfunction.  
(Where a product is being returned for repair from outside of Canada, customs  
documentation must show the product’s serial number, date of export [date of purchase],  
and a notation that the equipment is: “Canadian goods returning.”)  
Step III - Factory Authorized Service  
Once received, each product is carefully inspected and tested. If the product is under  
warranty, repairs are completed and the product returned to the owner, generally within  
five working days of receipt by the factory.  
A product that has been subjected to misuse, neglect or accident or is beyond the warranty  
period will be evaluated. The service department will provide the owner’s representative  
with a repair cost estimate. Once approved, repairs are completed and the product  
returned, generally within five working days.  
Page 8  
 
 
Guardian Telecom Inc.  
Installation and Operation  
Model HR71  
Notes:  
Model No.  
Part No.  
Serial No.  
Date of Purchase  
Page 9  
 
 
 
Guardian Telecom Inc.  
7552 - 10th Street N.E.  
Calgary, Alberta, Canada T2E 8W1  
Toll-free 1-800-363-8010  
Ph. (403) 258-3100  
Fax. (403) 253-4967  
Industrial Communications Worldwide  
© Guardian Telecom Inc. 2004  
 

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