geemarc LoopHear 160 Small Area and Counter Loop Amplifier Instruction Manual

: June 4, 2024
: geemarc

Table of Contents

LoopHear 160 Small Area and Counter Loop Amplifier
INTRODUCTION
INSTALLATION & OPERATION
LOOP ANTENNA & PERFORMANCE
SAFETY INFORMATION
RECYCLING DIRECTIVES
Documents / Resources

Small area and counter loop
Amplifier

LoopHear 160 Small Area and Counter Loop Amplifier

www.geemarc.com

INTRODUCTION

The LH160 has been designed as a standalone Induction Loop system for use inside a vehicle, point of sale desks, banks, ticket counters, or other customer service locations. It is easy to install and use. The unit is designed for use with the standard Geemarc multi-turn loop antenna (optional accessory) which can cover an area of about 1m² or a local
area loop covering an area up to 40m². The functions and features include the following:

Power On indicator
MIC1 indicator
MIC2 or AUX input indicator
Loop current indicator
TONE adjustment
MIC1 level adjustment
MIC2 or AUX input level adjustment
Loop current adjustment
MIC1 input socket
MIC2 or AUX input socket
Selector switch for MIC2 or AUX input
Power input socket
Loop antenna connector

The functions and features include the following:

Microphone input for use with standard desktop or lapel Microphones.
Dual function input for a second Microphone or Aux signal (like from an MP3 player) selectable via a switch.
Power input from a car battery via a car cigarette lighter socket or a 12 or 13 V DC power adaptor.
Loop output with spring clamps for easy connection.
Individual level controls for each input and loop output.
LED indication of Power, Input signals, and Loop output current for easy set up.

INSTALLATION & OPERATION

Choose a suitable location, free from magnetic or electrical interference for the installation and use of LH160

Install the LH160 onto a panel or wall under the counter, ensuring that the cables are securely anchored.
Connect the loop antenna (optional accessory) or another compatible loop coil to the loop output terminals. For optimal performance, the loop antenna or coil should be located about 80cm in front of the customer. Press the tab above the connector terminal and release after inserting the wire of the loop antenna or coil. Polarity
is not important.
Connect a compatible Geemarc Microphone to the Mic1 jack.
If required connect a second compatible Microphone or Aux input to the Mic2/Aux jack. Use the switch to select the type of input.
Using a small common blade flat screwdriver, turn the Mic1, Mic2/Aux, Tone, and Field Strength controls fully anti-clockwise (to their minimum levels).
Select the power source (car battery or mains AC adaptor) and connect the car adaptor cable or AC power adaptor to the power input socket.
Switch on the external power and check that the Power ON LED illuminates
Apply the input signal (for example speaking into the Mic) to Mic1 or Mic2/Aux and turn the corresponding control clockwise until the corresponding LED begins to light up.
Repeat the above for the second input if used. While setting up, apply only one input at a time.
While the input signal is present, adjust the Loop Current adjustment control clockwise to get the desired loop output level. The Loop Current Indication LED will become brighter as the Loop current is increased
Test the performance of the system using a field strength meter. Adjust the Tone and Loop Current controls to achieve the desired performance. The Tone adjustment enables compensation for the loss of higher frequency signal during transmission.
To connect the LH160 inside a motor vehicle please contact Geemarc at enquiries@geemarc.com

LOOP ANTENNA & PERFORMANCE

For optimum performance, use the loop antenna (optional accessory) or a local area loop with the following specifications:
Loop resistance 0.3 to 1 ohm
Loop Impedance 1.3 ohm at 1.6 KHz
For local area loops, use wire 0.5 to 1.5 mm2 or 22 to 16 AWG
The area covered by the unit is about 80cm ± 60° from the center point of the loop antenna/coil

SAFETY INFORMATION

General
Do not open the unit. Contact the helpline for all repairs.
Cleaning
Clean the LoopHEAR ™ with a soft cloth. Never use polish or cleaning agents – they could damage the finish or the electronics inside.

Environmental

Do not expose to direct sunlight.
Always ensure there is a free flow of air over the surfaces of the LoopHEAR™
Do not place any part of your product in water and do not use it in damp or humid conditions e.g. bathrooms.
Do not expose your product to fire or other hazardous conditions.

GUARANTEE
From the moment your Geemarc™ product is purchased, Geemarc™ guarantee it for a period of two years.
During this time, all repairs or replacements (at our discretion) are free of charge. Should you experience a problem then contact our helpline or visit our website at www.geemarc.com. The guarantee does not cover accidents, negligence, or breakages to any parts. The product must not be tampered with or taken apart by anyone who is not an authorized Geemarc™ representative. The Geemarc ™ guarantee in no way limits your legal rights.
IMPORTANT: YOUR RECEIPT IS PART OF YOUR GUARANTEE AND MUST BE RETAINED AND PRODUCED IN THE EVENT OF A WARRANTY CLAIM.

Please note: The guarantee applies to the United Kingdom only

DECLARATION : Geemarc™ Telecom SA hereby declares that this product is in compliance with the essential requirements and other relevant provisions of the Radio Equipment Directive.
The UKCA declaration of conformity may be consulted at www.geemarc.com
Electrical connection: The apparatus is designed to operate from a 100 to 230Vac 50-60Hz supply. (Classified as ‘hazardous voltage’ according to EN62368-1 standard), or from the 1213Vdc car battery cord adaptor.
This device complies with Part 15 of the FCC Rules [and with RSS-210 of Industry Canada].
Operation is subject to the following two conditions:

this device may not cause harmful interference AND
this device must accept any interference received, including interference that may cause undesired operation.

RECYCLING DIRECTIVES

The WEEE (Waste Electrical and Electronic Equipment) has been put in place for the products at the end of their useful life to be recycled in the best way.
When this product is finished, please do not put it in your domestic waste bin.
Please use one of the following disposal options:

Remove the batteries and deposit them in an appropriate WEEE skip. Deposit the product in an appropriate WEEE skip.
Or, hand the old product to the retailer. If you purchase a new one, they should accept it. Thus, if you respect these instructions you ensure human health and environmental protection.

For product support and help, visit our
website at www.geemarc.com
For our Customer Helpline
E-mail: help@geemarc.com
Telephone : 01707 387602
lines are open 09h00 to 16h00 Mon to Fri
Produktsupport und Hilfe erhalten Sie auf unserer Webseite unter
www.geemarc.com/de
E-mail : kontakt@geemarc.com

59791 GRANDE-SYNTHE CEDEX,
FRANCE
www.geemarc.com

Documents / Resources

| geemarc LoopHear 160 Small Area and Counter Loop Amplifier [pdf] Instruction Manual
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