The MTT MS3766 Slim Plug-In Analog Memory captures and holds a DC current or voltage output signal at its last value when triggered by an external hold command, then releases it back to tracking the live input once the hold is removed. This is a useful tool wherever a control system needs to freeze a reading temporarily, such as maintaining the last known process value during a sensor calibration, a maintenance window, or a brief upstream signal interruption, without letting a spurious or missing reading propagate downstream.
A simple dry contact or TTL signal on the hold input tells the MS3766 when to capture and retain its output, and an LED status indicator shows at a glance whether the unit is tracking live or holding a stored value. Five-way isolation between the input, hold input, output, power, and ground keeps the held signal protected from noise and ground loops, and front-accessible trimmers allow zero and span to be fine-tuned on site to match the connected instrumentation.
