The Ametek / VTI Instruments / VXI Technology EX1048 is a 48-channel precision thermocouple measurement instrument engineered for accurate temperature monitoring and thermal profiling. This high-density, 1U rackmount module delivers programmable scanning up to 1 kHz with independent channel configuration, integrated cold junction compensation via multiple precision thermistors, and built-in self-calibration for extended accuracy across ambient operating ranges of 15 °C to 35 °C.
Technical Specifications
• Channels: 48
• Measurement Types: Precision thermocouple; millivoltmeter functionality
• Scanning Speed: Programmable up to 1 kHz, independent of channel count
• Thermocouple Support: All standard thermocouple types; user-defined polynomial equations accepted
• Open Thermocouple Detection (OTD): Integrated detection system
• Cold Junction Compensation: Advanced implementation with multiple precision thermistors and thermal mass
• Isothermal Input Section: Embedded isothermal block monitored by twelve precision thermistors (one per four channels)
• Self-Calibration: Internal calibration source for on-command calibration
• Common Mode Rejection: Provides immunity from power line interference and high-frequency noise
• Channel Isolation: Channels operate independently with no cross-influence regardless of scanning speed or channel state
– Key Features
• Each channel independently configurable for measurement function, hardware filter, and limit values
• Low-noise millivoltmeter capability for analog signal measurement
• Precision hardware handshaking for synchronization
• Digital alarm outputs
• Input protection with enhanced isolation (particularly with EX10SC signal conditioning platform)
– Interfaces & Connectivity
• Ethernet communication with LXI LAN and Trigger Bus support
• IEEE 1588 time-stamping to 50 ns resolution
• D-sub connectors for voltage inputs; Mini-TC connectors for thermocouple inputs
• Power and LAN/LXI status LEDs
– Compatibility & Integration
The EX1048 integrates with the EX10SC signal conditioning platform for expanded input protection and measurement integrity in demanding measurement environments.
