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Home System Components Signal Conditioning Sentry Trip Amplifier
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Javelin 2-Wire Isolated Transmitter, Universal Input, 4-20mA Output
Define Instruments

Sentry Trip Amplifier

  • Universal input Thermocouple, RTD, NTC, mA, V, mV, potentiometer, digital pulse and AC current sensors
  • This DIN Rail unit can be used for a myriad of control and alarm applications.
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Additional information
Brand

Define Instruments

Description

Description

The Define Instruments Sentry trip amplifier accepts analog inputs from a range of industrial sensors, including: process, temperature, flow, frequency, and voltage. Inputs are electrically isolated form the output and the power supply, avoiding the potential for signal degradation from earth loops. It is designed to monitor input signals and switch its relays on and off to provide control and alarm functions.

With the optional analog output it can convert weaker signals into standard signals such as 4 to 20mA that can transmit longer distances and interface with PLCs and SCADA systems.

The Sentry features a universal power supply for both AC mains and 24VDC applications. This means no stocking high and low voltage versions or worrying whether you’ve taken the right one with you to the job. It can produce 22V excitation, enough to power common sensors two-wire and transmitters.

The Sentry is simple to setup and calibrate with the help of Define’s ToolBox software, which explains all the Sentry’s functions and features. It has an extensive library of pre-calibrated ranges and linearization tables for advanced scaling.

Features

Features

  • mA, V, RTD, TC, NPN/PNP, potentiometer, & AC inputs
  • 0 or 4 to 20mA or 0 to 10V output optional
  • Optional 4-digit display
    • Useful for commissioning & fault finding
  • 24 to 250VAC or 19.5 to 250VDC power supply
  • Program using free Define ToolBox software download
    • Requires a USB Bridge Key
  • 35mm DIN rail mount casing (IP20 rated)
  • Designed for harsh EMC environments
  • CE approved & 5-year guarantee
Resources

Resources

Operating Instructions

  • Sentry Manual.
  • Sentry Datasheet
About brand
With an ethos of simplicity and usability, Define Instruments manufacture smart and powerful products for industrial process measurement, indication and control. For 26 years Define Instruments have built innovative instrumentation for engineers who value products which don't require a high level of technical knowledge, can be configured in minutes and require little or no ongoing maintenance. Define Instruments offer their engineering design expertise to customize these products to suit your application. Define Instruments is ISO9001:2008 International Quality Standard accredited.

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