Sennheiser Electric Heater SZI 1029-10 User Manual download pdf (Page 18)

Green LED,

operation

red LED, mains supply indicator

and warning light for reduced

IR radiating-power

(malfunction indicator)

MALE TWO CHAINS!

RISK OF CANCELLATION!

CANCELLATION WITH The length of the cable between two neighbouring radiators should not

GREATER CABLE LENGTHS exceed 75 m, otherwise signal cancellation can occur when the radiation

is not in phase! Do not forget the terminating impedance!

The SZI 1029 high power radiator is provided with 12 independent output

stages, each stage amplifies the received signal for a power block of 12

infra-red LEDs. The SZI 1029-10 models with 24 independent output

stages have double the power.

MALFUNCTION INDICATOR If one power block fails, transmission quality is not considerably affected.

Only if more than one third of all the blocks fail to operate, the red LED

will light up in addition to the green one, thus indicating that the device

will have to be repaired.

OPERATION INDICATOR

The indicators work as follows:

Red Indicator Only: The

radiator is connected to the

mains but there is no IR signal

present. Green Indicator Only:

IR signal is present, the

radiator is working normally.

Red & Green Indicator:FAULT

CONDITION! 30 % or more of

the diodes are not working and

the radiator should be returned

to your local Sennheiser agent

for repair.

DISTANCE BETWEEN Please observe a minimum distance of 2 m between radiators and

RADIATORS AND RECEIVERS receivers as otherwise the receiver input stage could be overloaded. This

would result in a very poor transmission quality.

INSTALLATION If possible the radiators should be installed in such a way that they are

directly orientated towards the infra-red receivers. For best reception the

radiators should be installed as high as possible with a slight downward

inclination. For uniform irradiation of a given room the radiators should

be installed decentralised, usually in the corners of the room.

WRONG!

CORRECT:

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Sennheiser Electric Heater SZI 1029-10 User Manual Page 18

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