Programming & function
TKR9 keypad is a vandal resistant aluminium panel for flush mounting. surface mount codelock with a code length from 2 to 8 digits. Access codes are 2 to 6 digits long programmed by a six digit admin password. There is a jumper link to return to the factory admin code, but it does not clear the access codes.. A beeper gives confirmation of each key stroke. Incorrect codes give three beeps; correct codes give a green light. The relay on times are set from 1 to 9 secs. An exit button input also triggers the relay, but with the option of a different relay period.
Application
Connections are made to a 6 way screw terminal block. The volt free relay contact is either N.O. or N.C. set on a jumper link. Maximum relay switching is 1A resistive, suitable for small door locks, relays, or automation systems. A contact protector is provided for inductive loads. The exit button input operates the relay, envoking a different programmed timer setting. DC input voltage is tolerant to 32V. A zener voltage dropper may be used for 24Vac supplies.
Construction
The panel is 5mm thick and requires a minimum 94mm x 12mm cutout. Overall dimensions are 120mm x 97mm which is compatible with Videx 800 modular panels. There are two anodised finishes: natural and bronze. The panel has two blind mounting holes in the back. They can be drilled through for front mounting. Environmental protection is IP54. A heater is recommended to disperse condensation when used outdoors (330R 0.5W). The keys are engraved aluminium with LED back lit numbers.