Input & Output Modules

Models 6107B, 6118B, 6141A, 6144A, 6525B, 7121A & C

  • Overview

    To simplify use and get most out of Unidata datalogger range following components can be added to enhance logger performance.

    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.

    starlog dataloggers starlogger field termination strip 6103E
    starlog dataloggers prologger field termination strip 7100E

    I/O Modules
    The Isolated input amplifier model 6107B extends the signal range for Unidata data loggers allowing for devices with low level input signals such as thermocouples and PT100 bridges to be connected to the logger.

    input & output modules starlogger isolated input amplifier 6107B
    input & output modules starlogger isolated interface input module 6141A

    Isolated interface input module model 6141A for use with a Starlogger and model 7121A for use with a Prologger provides isolation for transducers which cannot be directly connected to a datalogger e.g. current loop transducers. Modules are designed to be mounted on the Starlogger and Prologger FTSs with option of fitting up to eight modules to the corresponding FTS.

    4-20mA current loop isolator model 6144A for use with a Starlogger and model 7121C for use with a Prologger are modules that isolate a Starlogger/Prologger from a 4-20mA current loop input signal. The signal is optically coupled, then converted to a voltage signal suitable for measurement by the logger. The module is partially powered by the loop current, allowing for a low power drain from the logger.

    input & output modules prologger 4-20mA current loop isolator 7121C
    input & output modules starlogger 4-20mA current loop isolator 6144A

    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.
    Universal counter module model 6118B extends the number of available counter channels of the datalogger. The standard operation mode is set as four 8-bit counters. Alternatively, two 16-bit counters may be configured for use with a Starlogger or Prologger. Cascading of up to eight counter modules is possible.

    input & output modules universal counter module 6118B
    input & output modules four channel relay control module 6525B

  • Specifications

    FTS Model 6103 and 7100

    Number of Terminations 6103: 50
    Number of Terminations 7100: 58
    Analog Inputs 6103: 8 10bit
    Analog Inputs 7100: 16 16bit
    Counter Channels: 4
    Serial I/O: 2 – 16 Channels
    External power: 12VDC

    Isolated Input Amplifier Model 6107B

    Input signal: Single ended differential unipolar, bipolar
    Input impedance: 100KΩ to $2.5KΩ
    Output signal: 0 to 2.5 Volts
    Zero Offset: Adjustable
    Gains: 1 to 250
    Power: 5VDC from Logger

    Isolated Interface Module Starlogger Model 6141A and Prologger Model 7121A

    Input Signal: Single ended or Differential 0 to ±5VDC
    Output Signal: Isolated input signal, not amplified
    Isolation: Flying capacitor, relay isolated
    Power: 5VDC, 25mA from Logger

    4-20mA Current Loop Isolator Starlogger Model 6144A and Prologger Model 7121C

    Input Signal: 0 to 20mA
    Output Signal: 0.5 to 2.5V factory calibrated, user adjustable
    Non Linearity: 0.25% of FS maximum
    Isolation: >300VDC
    Power: 5VDC,less than 1mA from Logger

    4-Channel Relay Control Module Model 6525B

    Input: Programmable output control from Data Logger via high speed serial
    Output: Potential free latched relay contact Double Pole Double Throw (DPDT)
    Contact rating: 240VAC, 0.5A Max
    Power: 5VDC, 2mA from Logger
    Material: ABS IP65 Sealed Enclosure
    Size: 115mm x 65mm x 55mm (LxWxH)
    Weight: 400g

    Single Channel Relay Control Module Model 6114A

    Input: Programmable output control from Data Logger
    Output: Potential free latched relay contacts, Double Pole Double Throw (DPDT)
    Contact Rating: 240VAC, 0.5A Max
    Power: 5VDC, 10mA from Logger

    Universal Counter Module Model 6118B

    Input: Suitable for potential free contacts and 5-12VDC digital signals, up to 20kHz
    Output: High speed serial
    Material: ABS IP65 Sealed Enclosure
    Size: 115mm x 65mm x 55mm (LxWxH)
    Weight: 400g

  • Ordering Information

    ModelDescriptionUsed With
    6103EStarlogger Field Termination Strip6004D
    7100EPrologger Field Termination Strip7001D
    6103M-LFTS Mounting Frame6004D + 7001D
    6107BStarlogger Isolated Input Amplifier6103E + 6004D
    6107BStarlogger Isolated Input Amplifier6103E + 6004D
    6141AStarlogger Isolated Interface Module6103E + 6004D
    6141AStarlogger Isolated Interface Module6103E + 6004D
    7121APrologger Isolated Input Module7100E + 7001D
    6144AStarlogger 4-20mA Current Loop Isolator6103E + 6004D
    7121CPrologger 4-20mA Current Loop Isolator7100E + 7001D
    6525BStarlogger & Prologger 4-Channel Relay Control Module6004D & 7001D

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  • Documents

    Application Notes
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