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SITRANS RD300

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  • Информационные материалы

    Информационные материалы

    The SITRANS RD300 is a panel mount remote digital display for process instrumentation and acts as a multi-purpose, easy to use, rate/totalizer ideal for flow rate, total, and control applications.

    Область применения

    The RD300 is a remote display for level, flow, pressure, weighing, and other process instruments. This display also acts as a multi-purpose, easy to use rate/totalizer ideal for flow rate, total, and control applications.

    Data can be remotely collected, logged and presented on your local computer using the free RD software available via USB drive.

    The display accepts a single or dual input of current and voltage. This makes the RD300 an ideal fit for use with most field instruments.

    The RD300 can be set up as a standard panel mount, or combined with optional enclosures to allow it to house up to 6 displays.

    • Key Applications: tank farms, pump alternation control, local or remote display of level, flow, pressure and weighing instrument
      values, PC monitoring and data logging with RD Software.

    Чертеж

    SITRANS RD300, dimensions in mm (inch)

    Особенности

    • Easy setup and programming via front panel buttons or using free RD software available via USB drive
    • Display readable in sunlight
    • Input: accepts current and voltage
    • Single or dual 24 V DC transmitter power supply
    • Serial communication using built in protocol or Modbus RTU
    • Supports up to 8 relays and 8 digital I/O for process control and alarming
    • 32-Point linearization, square root or exponential linearization
    • Multi-pump alternation control
    • Supports total, grand total or non-resettable grand total
    • 9-digit totalizer with total overflow feature
    • Large dual-line, 6-digit display
    • Configure, monitor, and datalog from a PC
    • Dual-input option with math functions: addition, difference, average, multiplication, division, minimum, maximum, weighted average, ratio, concentration

    Схема подключения

    SITRANS RD300 connections

    Технические данные

    Mode of operation

     

    Measuring principle

    Analog to digital conversion

    Measuring points

    1 or 2 instruments

    Input

     

    Measuring range

     

    • Current

    4 ... 20 mA, 0 ... 20 mA

    • Voltage

    0 V DC ... +10 V DC, 1 ... 5 V, 0 ... 5 V

    Output signal

     

    Output

    • 4 ... 20 mA (optional)
    • Modbus RTU

    Relays

    2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated
    3 A at 30 V DC and 125/250 V AC resistive load; 1/14 HP (50 W) at
    125/250 V AC for inductive loads (optional)

    Communications

    • RS 232 with Modbus RTU
    • RS 422/485 with Modbus RTU
    • USB configuration and monitoring port

    Accuracy

     

    4 ... 20 mA optional output

    ± 0.1 % FS

    ± 0.004 mA

    Process input

    ± 0.05 % of span ± 1 count, square root: 10 ... 100 % FS

    Rated operating conditions

     

    Ambient conditions

     

    • Storage temperature range

    -40 ... +85 °C (-40 ... +185 °F)

    • Operating temperature range

    -40 ... +65 °C (-40 ... +149 ºF)

    Design

     

    Weight

    269 g (9.5 oz) (including options)

    Material (enclosure)

    • 1/8 DIN, high impact plastic, UL94V-0, color: gray
    • Optional plastic, steel and stainless steel (Type 304, EN 1.4301)
      NEMA 4 enclosures

    Degree of protection

    Type 4X, NEMA 4X, IP65 (front cover); panel gasket provided

    Electrical connection

     

    mA output signal

    2-core copper conductor, twisted, shielded, 0.82 ... 3.30 mm²
    (18 ... 12 AWG), Belden 8 760 or equivalent is acceptable

    Electrical connection and relay connection

    Copper conductor according to local requirements,
    rated 3A at 250 V AC

    Power supply

     

    Input voltage option

    85 ... 265 V AC, 50/60 Hz; 90 ... 265 V DC, 20 W max. or jumper
    selectable 12/24 V DC ± 10 %, 15 W max

    Transmitter power supply

    Terminals P+ & P-: 24 V DC ± 10 %, 12/24 V DC powered models
    selectable for 24, 10, or 5 V DC supply (internal jumper J4), 85 ... 265 V
    AC models rated at 200 mA max, 12/24 V DC powered models rated at
    100 mA max, at 50 mA max for 5 or 10 VDC supply.

    External loop power supply

    35 V DC max.

    Output loop resistance

    • 24 V DC, 10 ... 700 Ω max.
    • 35 V DC (external), 100 ... 1 200 Ω max.

    Displays and controls

     

    Main display

    0.6 inch (15 mm) high, red LEDs

    Second display

    0.46 inch (12 mm) high, red LEDs, 6-digits: each (-99 999 ... 999 999)

    Memory

    • Non-volatile
    • Stores settings for minimum of 10 years if power is lost

    Programming

    • Primary: front panel
    • Secondary: Meter Copy or PC with SITRANS RD Software

    Certificates and approvals

    CE, UL, CUL

    Options

     

    Enclosures

    Plastic, steel and stainless steel (Type 304, EN 1.4301) NEMA 4 and
    4X enclosures



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