Honeywell TREXCHPNAWS1 AMS Trex Device Communicator with HART & Wireless

Technical Specifications Breakdown

Key parameters for the TREXCHPNAWS1 are listed below for quick reference:

Industry Applications

With HART application support, technicians can configure, calibrate, and diagnose HART field instruments directly from the field. The wireless option allows remote connectivity for data transfer and troubleshooting, reducing the need for physical access to hazardous areas. The rechargeable Li-Ion power module supports extended shifts, ensuring the tool is ready when needed.

Installation & Setup Guidance

Before using the TREXCHPNAWS1, ensure the battery is fully charged. The rechargeable Li-Ion module provides over 8 hours of normal use and takes 3 to 4 hours to charge. Use the HART terminals with two banana plugs for device communication. You can select an internal resistance of 250 Ohm or 500 Ohm as needed. For HART devices that require power, use the HART+Power terminal, which includes a 167 Ohm resistor and current control. Always disconnect the USB cable from the Trex before connecting to a device to avoid communication issues.

Why the TREXCHPNAWS1 Stands Out in Field Device Maintenance

Field technicians face a constant challenge: carrying multiple communicators and struggling with complex device setups. The Honeywell TREXCHPNAWS1 AMS Trex Device Communicator simplifies this by combining a rugged handheld platform with powerful HART application support. Built on the Base Trex Platform, this model is engineered for professionals who need reliable communication with HART-enabled field devices. Its wireless capabilities and rechargeable power module make it a practical choice for modern plant environments.

Maintenance & Reliability

Regularly inspect the device communicator for physical damage and ensure the touchscreen remains clean. The display is a 640 x 480 pixel color VGA resistive touchscreen. Keep the device firmware updated to maintain compatibility with the latest HART devices. The rechargeable battery should be replaced when runtime noticeably decreases. Store the unit in a dry, clean environment when not in use.

Compatibility & Integration

The TREXCHPNAWS1 supports HART communication via its dedicated terminals. It also includes Foundation Fieldbus (FF) terminals for FF device communication. For FF devices that need power, the FF+Power terminal provides a regulated supply with a current range of 0 to 38 mA. The mA terminal measures 4-20 mA loop current with a range up to 22.5 mA and a resolution of 0.1 mA. Wireless connectivity includes Bluetooth 2.1 (range up to 10 m) and Wi-Fi 802.11 b/g (range up to 33 m), plus active NFC up to 20 cm.

Selection Guide & Purchasing Advice

When selecting a device communicator, consider the communication protocols you support. The TREXCHPNAWS1 is specifically configured for HART applications and includes wireless options, making it a versatile choice for plants with HART instruments. For a reliable supply, AutoDCSTech offers this model with standard support for one year. Contact AutoDCSTech to verify current lifecycle status and availability before ordering.

Troubleshooting & Common Issues

If the device does not power on, check the battery charge and connections. For communication issues, verify that the HART terminals are correctly connected and the internal resistance is set appropriately. If the wireless connection fails, ensure Bluetooth or Wi-Fi is enabled and within range. For persistent problems, consult the user manual or contact AutoDCSTech for technical support.