PDW90 Point-To-Multi-point Wireless System

Brand: Precision Digital Corporation

In its most basic form, the PDW90 consists of field units (up to 32) that accept 4-20 mA signals and transmits them wirelessly to a base station.

The primary advantage of this system is how simple and economical it is to get multiple signals (not just 4-20 mA, also discrete (digital) and Modbus) from where you have them to where you need them – all without having to run wires!

The wireless communication between the field units and the base station is bi-directional. That means you can send 4-20 mA, discrete and Modbus signals from the field units to the base station and also send completely different 4-20 mA, discrete and Modbus signals from the base station to the field units.

For instance, the field unit could send a 4-20 mA signal to the base station corresponding to the level in a tank and the base station could send a 4-20 mA sig-nal to the field unit to control a valve.

Field units are also equipped with four digital I/O that can each be independently programmed as an input or an output. A Loss of Signal warning is also available by connecting devices to the G and LS screw terminals.

  • Signal Wire Replacement System Consisting of Wireless Base Station and Field Units
  • Wireless Point to Multi-Point Signal Wire Replacement for up to 32 4-20 mA Signals
  • Range: 1 Mile Line-of-Sight Outdoor, 500 Feet Indoor; Repeaters Available to Extend Range
  • Wireless Transmission Between Base Station and any Field Unit of
    • 4-20 mA (Separate Signals to and from Base Station)
    • Discrete (4 digital I/O Signals to and from Base Station)
    • RS-485 Modbus
  • Inputs: (Wired to Field Units) 4-20 mA or 0-10 V (1), Discrete/Digital (up to 4), Modbus
  • Outputs: (Wired to Field Units) 4-20 mA (1), Discrete/Digital (up to 4), Relays (2, opt), Modbus
  • Base Station I/O Modules for 4-20 mA Inputs, 4-20 mA Outputs, Relay Outputs, Digital I/O
  • Base Stations with slots for 2, 6, or 16 Field Installable I/O Modules and Modbus
  • Loss of Signal (LoS) Digital Output
  • PDA10 Signal Strength Survey Tool to "Try Before You Buy"
  • Simple to Configure Using PDW Manager Programming Software and On-Board USB
  • Device Communication Secured by Enabling 128-bit AES Encryption
  • Password Protection
  • Remote Yagi Directional Antennas Available
  • Base Stations Housed in Plastic NEMA 4X Field Enclosures
  • Field Units Available in IP68, NEMA 4X Aluminum & Stainless Steel Enclosures
  • Field Unit Operating Temperature Range: -55 to 75°C (-67 to 167°F)
  • PCBs are Conformal Coated for Dust & Humidity Protection
  • Power: 9-30 VDC, Base Station & Field Units
  • 3-Year Warranty

Models matching criteria: 22
  • Model - Point to Multipoint System
  • Model - PDW90-S2A-0100
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S6A-0300
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Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S8N-4442
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S8A-4442
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S6A-3332
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Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S2N-0100
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - Base Station Modules
  • Modules - PDW90 Dual Analog Input Base Station Module
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S4A-0200
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S2A-1111
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Does not ship to OH, United States
  • Model - Base Station Modules
  • Modules - PDW90 Dual Analog Output Base Station Module
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Does not ship to OH, United States
  • Model - Base Station Modules
  • Modules - PDW90 Dual Digital I/O Base Station Module
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Does not ship to OH, United States
  • Model - Base Station Modules
  • Modules - PDW90 Dual Relay Output Base Station Module
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Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S2N-1111
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S4N-0200
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S6N-3332
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S4A-2221
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Does not ship to OH, United States
  • Model - Point to Multipoint System
  • Model - PDW90-S8A-0400
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Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S6N-0300
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S4N-2221
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Does not ship to OH, United States
  • Model - PDW90-Wireless Components
  • PDW90 - Point-to-Multipoint Wireless Process Signal Field Unit
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Does not ship to OH, United States
  • Model - Complete Systems
  • Model - PDW90-S8N-0400
Call for Pricing & Availablility
Does not ship to OH, United States
  • Model - PDW90-Wireless Components
  • PDW90 - Point-to-Multipoint Wireless Process Signal Base Station
Call for Pricing & Availablility
Does not ship to OH, United States

Specifications

Display

  • 32-character dual-line alphanumeric dot matrix LCD display with backlight
  • Visual Area: 2.54" x 0.63" (64.6 x 16.0 mm)
  • Character Height: 0.2" (5.5 mm)
  • Display used for displaying communications link status and signal strength

Maximum Connected Field Units

  • 32 field units per base station

Programming Methods

  • Via PC with PDW Manager software. Configuration files can be saved for later use

Input Power

  • 9-30 VDC, 40 W maximum
  • Minimum power: 2.0 W (Modbus only)
  • Power consumption is dependent on type and number of modules installed, refer to each individual module’s power specification to calculate the total power needed

Isolation

  • 500 V

Environmental

  • Storage: -40 to 85° C (-40° to 185° F)
  • Relative humidity: 0 to 90% non-condensing
  • Operating: -40° to 65° C (-40° to 149° F)

Connections

  • Removable screw terminal blocks accept 12 to 26 AWG wire

Connectors Tightening Torque

  • 4.5 lb-in (0.5 Nm)

Enclosure

  • NEMA 4X; Thermoplastic Polyester
  • Color: Gray

Material of Construction

  • AL Models: ASTM A413 LM6 die-cast aluminum, copper-free, enamel coated
  • SS Models: ASTM A743 CF8M investment-cast 316 stainless steel
  • Gasket: Fluoroelastomer
  • Window: Borosilicate glass

Input

  • Dual Analog Input Module (Field Selectable): Two (2) Field selectable: 4-20 mA, 0 10 V, 0-5 V, 1-5 V

Accuracy

  • ± 0.03 % of Calibrated Span ± 1 Count

Mounting

  • May be mounted directly to conduit
  • Built-in flange for 1.5" to 2" pipe or wall mounting

Communication

  • RS-485 Modbus

Overall Dimensions (W x H x D)

  • 5.25" x 11.63" x 4.80" (133 mm x 295 mm x 122 mm)

Weight

  • Aluminum: 5.6 lbs (2.5 kg)
  • Stainless Steel: 9.8 lbs (4.4 kg)
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