Checking the infrared coverage:
When the transmitters and detectors used on the installation have been set, check the infrared coverage in the
teaching space or training room.
Whilst the infrared is, in theory, line of site it readily re
fl
ects off many surfaces (emitting power has also increased
signi
fi
cantly in line with improvements in LED technology). Provided the two sensors are installed and angled
correctly, and the transmitter batteries are charged completely, coverage of all areas likely to be used by the
teacher should be readily achieved. If this is not the case the sensors should be checked.
Firstly ensure that the red LEDs are illuminated on both IS-20A sensors. Secondly test each individual sensor,
preferably by substitution or, if a replacement is not available, by disconnecting each sensor in turn. The coverage
with a single sensor should be distinctly poorer; if no change is observed suspect the sensors.
Please note complete coverage is unlikely to be achieved with only a single sensor.
Chargers and Batteries:
It is vitally important that the correct regime is adopted with regard to battery charging if the performance of the
system is to be maintained. In normal use, fully charged batteries will power the transmitters for approximately 4
hours. Batteries will re-charge to 80% within 1 hour and fully within 5 hours using the supplied charger.
16
Setting the Transmitters
Important information
Your IWM-402 is supplied with a set of rechargeable batteries. However, if these should become lost or require
replacement, it is critical that the following procedure is followed to allow your batteries to recharge correctly;
The IWM-402 has an inbuilt safety feature which will protect the Pendant and charger should someone insert
standard AA batteries and attempt to recharge them.
When installing a new set of rechargeable batteries please trim off 15mm of the plastic
cover/sleeving from the negative end of the battery, insert into the transmitter and place
into the Drop In charger. If this procedure is not carried out then the charger will not
recharge the installed batteries.
• WILL
CHARGE
• WON’T
CHARGE
15mm
Microphone Type:
Charger Option:
IWM-402 Pendant Transmitter
HC-40 Drop-In Charger
IWH-401 Handheld Transmitter
HC-40 Drop-In Charger
IWH-302 Handheld Transmitter
HC-33 Drop-In Charger
*
HC-40 Charging indicator LED
Solid Red
Charging
Solid Green
Fully Charged
Flashing Red
Poor battery condition/indication to replace or change the batteries
Note: Before charging either transmitter, please ensure that the batteries are installed the
correct way around (pos-pos/neg-neg). Inserting the batteries the wrong way around will result
in failure of/damage to the microphone transmitter. This is not covered under warranty.
Please demonstrate the equipment to the user and explain all the features and facilities. Make
sure the user understands the charging and care of batteries. Finally leave the user manual
with them, together with details of who to contact if service is required.
