Last Updated: 28/05/2020
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Precision Digital PDW90 Point-to-Multipoint Wireless Process Signal Field Unit

$694

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  • Product Type: Point-to-Multipoint Wireless Process Signal Field Unit
    Inputs: Current (4-20 mA), Voltage (0-10 V), Modbus, Switch
    Power: 12-28 VDC

    $694

    PDW90 field units transmit analogue, digital, and Modbus® inputs from any location in the field to the PDW90 base station. Just set the network ID and Modbus address and put the field unit wherever there are a 24 VDC power and a process signal. Once it has been connected to the base station, it will transmit all signal connections wirelessly.

    • Signal Wire Replacement in a Rugged, Industrial Housing
    • Inputs and Outputs on Both Field Units
    • Simple to Order, Configure, & Install
    • 1 Mile Line-of-Sight, 500 Ft Indoor Range
    • Inputs: Analog (4-20 mA, 0-10 V, 0-5 V, 1-5 V), Digital, and RS485 Modbus Communications
    • Outputs: Analog (4-20 mA), Digital, and RS485 Modbus® Communications
    • Remote or Attached Antenna
    • Repeaters Available
    • Flanges for Wall or Pipe Mounting
    • Software Available for Even Easier Setup
    • NEMA 4X, IP68 Enclosure

    General

    Display

    32-character dual-line alphanumeric dot matrix LCD display with backlight
    (4.68mm x 2.21mm characters)

    Display Orientation

    Display may be mounted at 180° from default orientation

    Network ID

    Field selectable: 0 – 99

    Programming Methods

    Four programming buttons (behind glass) or PC with PDW Manager software.

    Recalibration

    All inputs and outputs are calibrated at the factory. Recalibration is recommended at least every 12 months.

    Process/ Digital I/O
    Display

    Press the display button once to display the present analog input and output, press the display button again to display digital I/O states.

    Password

    A programmable password restricts modification of programmed settings.

    Power

    12-28 VDC, 5 W max

    Non-Volatile Memory

    All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.

    Isolation

    500 V

    Environmental

    Operating temperature range: -40 to 65°C (display inoperable < -20 °C); Storage temperature range: -40 to 85°C; Relative humidity: 0 to 90% non-condensing

    Connections

    Removable screw terminal blocks accept 16 to 30 AWG wire.

    Enclosure

    Cast aluminum with glass window, 0.30% max copper content, corrosion resistant powder coating, color: blue. NEMA 4X/IP68. Two ½” NPT threaded conduit openings. One ½” NPT stainless steel conduit plug with 10 mm hex key fitting installed.

    Mounting

    May be mounted directly to conduit. Two mounting holes for 1.5″ pipe or wall mounting. See Mounting Dimensions on page 15 for mounting space requirements.

    Tightening Torque

    2.5 lb-in (0.28 Nm)

    Shipping Dimensions

    17″ x 14″ x 9″ (43.2 cm x 35.6 cm x 22.9 cm) (L x W X H)

    Shipping Weight

    5 lbs. (2.27 kg)

    Warranty

    3 years parts & labor

    Wireless Radio

    Frequency

    900 MHz

    Range

    500 ft (152.4 m) indoor, 1 mi (1.61 km) outdoor (line-of-sight)

    Encryption

    AES 128-bit encryption available using PDW Manager software

    Interference Reduction

    Frequency Hopping Spread Spectrum (FHSS)

    Power Output

    24 dBm (250 mW)

    Sensitivity

    -101 dBm

    PDW Manager Software

    System Requirements

    Microsoft® Windows® XP/Vista/7/8/10

    Communications

    USB 2.0 (Standard USB A to Micro USB B)

    Configuration

    Configure devices one at a time

    Analog Input

    Inputs

    Field selectable: 4-20 mA, 0-10 V, 0-5 V, 1-5 V

    Accuracy

    ±0.03% of calibrated span ±1 count

    Temperature Drift

    0.005% of calibrated span/°C max from 0 to 65°C ambient,
    0.01% of calibrated span/°C max from -40 to 0°C ambient

    Input Impedance

    Voltage ranges: greater than 110 kΩ; Current ranges: < 220 Ω

    Signal Loss

    Inputs will remain off (open circuit) until wireless units are reconnected.

    HART Transparency

    Analog input will not interfere with existing HART communications on the wired 4-20 mA signal

    Isolated 4-20 mA Transmitter Output

    Output Source

    Analog input from connected wireless unit

    Calibration

    Factory calibrated: 4.000 to 20.000 = 4-20 mA output

    Accuracy

    ± 0.1% of span ± 0.004 mA

    Loop Power Supply

    Internally powered; no external supply needed

    Temperature Drift

    0.4 µA/°C max from 0 to 65°C ambient, 0.8 µA/°C max from -40 to 0°C ambient

    Signal Loss

    mA output will become 3.2 mA after approx. 25 seconds

    Output Loop Resistance

    Power supply

    Minimum

    Maximum

    24 VDC

    10 Ω

    900 Ω

    Digital Input / Output Terminal

    Channels

    Four (4) digital connections, independently field selectable as either inputs or outputs

    Digital Input Logic High

    3 to 5 VDC

    Digital Input Logic Low

    0 to 1.1 VDC

    DI Contact

    Dry contact to ground can be used to activate the input

    Digital Output Logic High

    3 to 5 VDC

    Digital Output Logic Low

    0 to 0.4 VDC

    Source Current

    10 mA maximum output current

    Sink Current

    1.5 mA minimum input current

    Signal Loss

    Digital output goes to logic high

    RS-485 Modbus® RTU Serial Communications

    Compatibility

    EIA-485

    Connectors

    Removable screw terminal connector

    Max Distance

    3,937′ (1,200 m) max

    Baud Rate

    1200 – 57,600 bps

    Transmit Time Delay

    Programmable between 0 and 199 ms

    Data

    8 bit (1 start bit, 1 or 2 stop bits)

    Parity

    Even, Odd, or None with 2 stop bits

    Modbus Timeout

    0.5, 1, 2, 3, 4, 5 seconds; user selectable

    Note: This tab applies to the entire product series and may contain information that is not relevant to this particular model number.

    Mounting Dimensions

     

    Application

    The diagram below shows a typical PDW90 installation. Multiple transmitters are outputting analog signals to wireless field units. The analog signals are being wirelessly broadcasted to the PDW90 base station which then sends 4-20 mA signals to the destination devices.

    Range: 500 ft (152.4 m) indoor, 1 mile (1.6 km) outdoor/line-of-sight)

    Connections

    Field Unit

    The diagram below shows the locations of screw terminal blocks on the rear of the wireless field unit assembly.

    Data Sheet: LDSW90 Datasheets
    Instruction Manual: LIMW90_0 Instruction Manuals
    Quick Start Manual:LIMW90QS_0 Quick Start Manual

    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm

    Setup, Configuration and Technical Support of our Products are FREE.

    We help to check your faulty Instruments too, fill in the form here

    Free phone and email tech support continues as long as you own the product. Click here for contact information.

    close-link
    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email [email protected]

    FREE Domestic AND SEA Shipping!

    Most orders RM500/USD120 or more ship SEA for FREE!

    • Delivery within the Southeast Asia only.
    • Hazardous items excluded.
    • Extremely heavy or bulky items excluded.
    • Distributors, Resellers and OEMs excluded.
    • Contact us for shipping charge for orders < RM500/USD120
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