Description

TREXLHPKLWS3S Handheld Communicator

Technical Specifications

• Product Model: TREXLHPKLWS3S
• Brand: Emerson
• Warranty: One Year
• Input Voltage: Rechargeable lithium‑ion battery pack
• Operating Temperature: ‑20 °C ~ +55 °C
• Storage Temperature: ‑20 °C ~ +60 °C
• Response Time: HART communication typical response <500 ms
• Protection Class: IP54 portable field‑unit
• Accuracy Class: HART protocol communication device
• Output Frequency: Not applicable
• Rated Current: Battery‑powered portable operation
• Function: HART handheld field communicator; configure, calibrate and diagnose HART smart transmitters and valve positioners
• Communication: HART, wireless HART support for this variant
• Display: Color touch‑screen graphical user interface
• Certifications: Intrinsically safe for hazardous area operation
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 0.85 kg
• Dimensions: Portable handheld instrument housing
• 

Product Overview

TREXLHPKLWS3S is Emerson Trex series intrinsically‑safe handheld communicator for process field instruments. It performs transmitter configuration, range setting, calibration, loop test and device diagnostic readout for HART field devices in petrochemical, oil‑gas and power‑plant sites. Wireless‑HART capable variant supports convenient field‑work without heavy cable connection. Intrinsically‑safe certification allows direct operation inside explosive hazardous zones. Widely used for instrument‑maintenance teams.

Application Notes

‑ Use certified battery pack for hazardous‑area operation. ‑ Confirm HART loop load resistance meets communication requirement. ‑ Backup device configuration before modifying field‑instrument parameters. ‑ Typical deployment: plant instrument‑maintenance tool spare‑part stocking.