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Explore the Precision Digital PDW30
Select a section to review capabilities, specifications, applications, options and documentation.
Connect field instruments without long signal cable runs
The PDW30 bridges analog, discrete and Modbus signals between two locations. A matched pair exchanges measurements and control signals in both directions, helping connect field equipment to existing monitoring and control systems.
Each unit requires DC power. Configure the system through USB with PDW Manager or use the CapTouch buttons for basic adjustments.
Technical Specifications
Inputs & Outputs
- Analog input
- One per unit: 4–20 mA, 0–10 V, 0–5 V or 1–5 V
- Input accuracy
- ±0.03% of calibrated span ±1 count
- Analog output
- One per unit: isolated, internally powered 4–20 mA
- Output accuracy
- ±0.1% of span ±0.004 mA
- Digital I/O
- Four configurable channels per unit
Communication & Configuration
- Range
- 1 mile outdoor line-of-sight; 500 ft indoor
- Serial interface
- RS-485 Modbus RTU; 1,200–57,600 bps
- Security
- Selectable AES 128-bit encryption; password protection
- Programming
- PDW Manager via USB; CapTouch for basic settings
- HART
- 4–20 mA value transmitted; HART data excluded
Power & Environment
- Supply
- 9–30 VDC; 5 W maximum per unit
- Temperature
- −40 to 149°F (−40 to 65°C)
- Display limitation
- Inoperable below −4°F (−20°C)
- Humidity
- 0–90%, noncondensing
Housing & Warranty
- Material
- Aluminum or 316 stainless steel
- Protection
- IP68; Type 4X / NEMA 4X
- Display
- Backlit, two-line, 32-character LCD
- Warranty
- 3 years, parts and labor
Applications
Tank Level Monitoring
Bring level measurements to a remote display or controller.
Level Switch Alarms
Relay high and low tank status to an annunciator.
Remote Valve Control
Exchange level feedback and valve commands between locations.
Modbus Instrumentation
Bridge communication between a Modbus controller and field devices.
Options & Accessories
Enclosure Selection
Choose aluminum or stainless steel to suit the installation.
Relay Module
Optional PDWM-2RY adds two Form A (SPST) relays per unit.
Wireless Repeaters
PDWR repeaters extend communication coverage.
Antennas & Mounting
Remote antennas, pipe mounting kits and sun hoods are available.
Additional Information
PDW30 gives you a simple, straightforward way to get an analog, discrete, or Modbus® signal from where you have it to where you need it. It’s a point-to-point wireless bridge packaged in a rugged, weather-tight housing that is designed to meet the demands of industrial installations. The PDW30 is simple to order, simple to configure, and easy to trust with your application. Guaranteed ranges assure it will work with your application or you can send it back - no questions asked. A wireless survey tool is available for those installations that require a site survey for longer distances, making it easy to verify the setup will work the first time.
PDW90 field units transmit analog, 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 is DC power and a process signal. Once it has been connected to the base station, it will transmit all signal connections wirelessly.
PDW90 field units transmit analog, 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 is DC power and a process signal. Once it has been connected to the base station, it will transmit all signal connections wirelessly.
