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3 Operation
SHT-77 is delivered ready-made with an installed Battery.
Pressing any Key is indicated by the green LED next to Key 1.
The operation corresponding to the signal depends on the receiver and its wiring.
Simultaneously pressing keys 3 and 6 reacts in transmitting a special function, only interpreted by
receiver SHR-7 K4.
Coding
To differentiate transmitter-/receiver-combinations, or if other systems are operated in the
neighbourhood, the radio-code of the transmitter may be selected out of 6561 options individually.
After releasing the screw of the Battery-chamber on the rear side, the Tri-DIP-selection switch is located
on the board. Each of the switches has 3 setting positions (+|0|-), resulting in the 6561 possible
combinations.
Please note:
In case the transmitter-code or the transmitter itself should be changed, the
corresponding receiver must be re-programmed with a new code.
Battery
Depending on the frequency of use, of the transmitter the battery life can vary. A yellow
flashing LED acts as an "Low-Batt." indicator if the batteries capacity is reduced.
The Battery-chamber can be opened after releasing the screw on the rear side of the
transmitters case.
Use only a 9V-Alkaline Block-battery!
4 Technical Details
Radio-Frequency
Codes
Control Signals
Operating Voltage
Current
Ambient temperature
Storage temperature
Dimensions
Protection
:
433,92 MHz
:
6561, selectable
:
8 plus Low Batt - Information
:
9 V - Alkaline - Blockbattery
:
typ. 14 mA average
o
o
:
-20
C to +65
:
-40°C to +85°C
:
125 mm x 72 mm x 27 mm
:
IP 42 (SHT-77 / 00347.20)
:
IP 54 (SHT-77 D / 00347.60)
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