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DAE - Mechanical Time Delay
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| The DAE is a dual key controlled mechanical time delay unit designed to control access to dangerous machines which have a run-down time or where machinery must complete an operating cycle before access is permitted. The DAE is ideally suited for applications where the availability of mains power is limited or where the timer needs to be located in a potentially explosive atmosphere. | ||||
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| After disconnecting the power supply to the machine the Primary (Isolation) key is inserted and turned initiating the time delay sequence - the Primary key is now trapped. After a pre-set time (set to exceed the run down time of the machine) the Secondary key is released and transferred to the interlock on the machine guard. The DAE incorporates front panel visual indication of "time to key release". | ||||
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The DAE is designed to operate as part of an integrated safety system, controlling access to hazardous areas. A typical example of machine isolation, time delay and access control is shown below.
 The release of the isolation key in the KS20, when turned, disconnects the electrical supply to the machine. This key is then placed in the DAE and turned, initiating the timer. After completion of the time out period the secondary key is released. (The time delay must be longer than the machine stopping time). The key can then be taken to the MAI interlock, and the access door opened. |
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| • Robust construction suitable for heavy duty or harsh environments. • Mechanical time, no electrical connections required, suitable for remote mounting. • Time delay range betweeen 30 seconds and 55 minutes. • Status indicator window. |
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