A Field Termination Strip (FTS) is normally added to a data logger to simplify instrument connection and to identify one logging site from another. The FTS extends a data logger’s signal connections to a row of numbered screw terminals. These terminals make it easy to connect/disconnect instruments to/from the logger on site. The FTS provides mounting facilities for reference resistors and additional signal filtering and conditioning components. Signal conditioning equipment is typically soldered onto a FTS becoming part of the on-site installation.
4-channel relay control module model 6525B is an interface designed to allow the datalogger to control four magnetically latched relays. This permits the logger to be used as a controller of four external devices through the four potential free contacts. Up to four modules can be connected to a Starlogger or Prologger.
Single channel relay control module model 6114A is used to switch on/off an external instrument from the logger, for example, switch on a pump or a lamp, or set off an alarm. It is mounted on a FTS and uses the pulse output from the logger to latch the relay.
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