Measurement Principle & Electrical PerformanceThe internal high-speed processor calculates fluid flow velocity by collecting the propagation time difference of ultrasonic signals in upstream and downstream directions, then converts velocity into instantaneous flow rate, mass flow and total accumulated flow through built-in correction algorithm with Reynolds compensation function. This configuration is single-channel design, equipped with backlit LCD display and infrared non-contact keypad for parameter setting under explosion-proof closed state. Provides two groups of galvanically isolated 4–20mA analog outputs, matches standard HART communication protocol, reserves RS232 interface for PanaView software debugging and data recording. Power supply supports 100–240VAC wide-range alternating current with maximum power consumption 20W. All calibration coefficients and user configuration data are stored in non-volatile memory without data loss after power outage. Core electronic components pass high-low temperature aging screening to guarantee stable long-term measurement performance, clamp-on measurement accuracy reaches ±1%~±2% of reading, process calibration can be optimized to ±0.5%FSManualsLib.

Structural Design & Environmental AdaptabilityThe instrument enclosure meets NEMA4X / NEMA7 explosion-proof protection standard, IP67 sealing performance, dust-proof, waterproof and anti-corrosion, suitable for outdoor pipe galleries, petrochemical plants, refineries and other Class I hazardous gas environments. Internal circuit boards are coated with high-performance conformal coating to resist damp, dusty and weak corrosive ambient atmosphere. The overall working temperature range is -40℃ ~ +60℃, storage temperature -55℃ ~ +75℃, with excellent vibration resistance to adapt to pipeline vibration and harsh field working conditions. Standard wall-mounted installation mode is convenient for on-site fixing and wiring layout, fully complies with industrial EMC electromagnetic compatibility standards to suppress interference from field pumps and frequency converters.

Matched Components & Application ScenariosCompatible with Panametrics series clamp-on ultrasonic probes, wetted insertion transducers and dedicated shielded signal cables, matched with 703 series internal spare circuit boards such as main control board, display board and communication board. It is widely used in petrochemical process medium metering, thermal power circulating water balance monitoring, oil pipeline transportation measurement, municipal industrial water & sewage flow statistics, food pharmaceutical liquid pipeline flow monitoring. Used as the complete host replacement spare part when the original transmitter has measurement drift, display failure, communication interruption and main board damage faults.

Stability & Maintenance AdvantagesNon-invasive installation will not cause pipeline pressure loss, no internal mechanical wearing parts, greatly reducing later maintenance frequency and operating costs. Infrared keypad realizes parameter setting without opening the explosion-proof shell, improving site operation safety in hazardous areas. Each unit completes flow calibration, output trimming and continuous power aging test before factory delivery to ensure consistent batch precision. Standard interface matching realizes fast field replacement and shortens production downtime loss. Original genuine XMT868I effectively avoids measurement deviation and peripheral module damage caused by inferior substitutes. Shockproof sealed packaging meets long-term spare parts inventory storage requirements, and overall measurement performance remains stable under dry constant-temperature storage conditions.