Single and Dual Alarm Type 745

The Single and Dual Alarm Modules Type 745 have been developed by Bailey Controls Co ( U.S.A.) and belong to the very successful Bailey Line 7000. A voltage sensitive, solid state comparator energizes or de-energizes an integral electromechanical relay when an input signal of 1-5v DC exceeds or falls below some pre-settable alarm point value, that is continuously adjustable over the input range. Upon alarm trip, two sets of single-pole contacts change state.


The Type 745 Alarm is available in single and dual form, which share the same circuit board. In the single unit, the alarm may be either high or low. In the dual unit, there is only one input signal and this form may be used to effect a high and/or low alarm, 2-levels or high alarm, or 2-levels of low alarm. Adjustements and test points are provided on the front panel for alarm point adjustements and related test jacks for measuring the alarm point voltage, input voltage and signal common.




Although the Single Alarm Module and the Dual Alarm Module Type 745 have been discontinued, these modules are still used in Bailey Control Systems installed in many plants around the world.

These modules are available from our stock with delivery off the shelf.

Please contact us for a quotation.

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