Beamex MC2-II Multifunction Process Calibrator

Overview

The Beamex MC2-II Multifunction Process Calibrator is a field-deployable, metrology-grade instrument engineered for high-accuracy calibration, verification, and troubleshooting of industrial process instrumentation—including temperature sensors (RTDs and thermocouples), pressure transmitters (when paired with compatible Beamex digital pressure modules), analog current/voltage transmitters, and discrete switch devices. Built upon a dual-isolated architecture, the MC2-II separates measurement and sourcing circuits at the hardware level—eliminating cross-talk, ground-loop errors, and signal integrity degradation during simultaneous measure-and-source operations. Its core functionality adheres to traceable calibration principles defined in ISO/IEC 17025 and supports documented evidence generation required for regulated environments under FDA 21 CFR Part 11, EU GMP Annex 11, and GLP frameworks. The device operates across a broad ambient range (−10 °C to +50 °C), features an embedded cold-junction compensation module with thermal inertia minimization for rapid ambient tracking, and delivers stability suitable for on-site calibration without environmental chamber dependency.

Key Features

• Dual-channel electrical isolation between measurement and output circuits ensures metrological independence and eliminates mutual interference during loop check or transmitter calibration.
• Comprehensive signal support: measures and sources mA, V, mV, Ω (3-wire and 4-wire), Hz, pulse count, and continuity—with selectable excitation for RTD measurements.
• Full thermocouple emulation and measurement for eight standard types (K, E, J, T, N, R, S, B) and four RTD standards (Pt100, Pt10, Cu50, Cu100), all with automatic cold-junction compensation referenced to internal thermal sensor array.
• Integrated 24 V DC loop power supply (±0.5 V regulation), galvanically isolated from measurement and output paths, enabling live-loop testing of 2-wire transmitters without external power supplies.
• Programmable step and ramp output functions—including user-defined sequences—for automated calibration procedures and hysteresis evaluation.
• Onboard data storage with time-stamped records for measurement logs, calibration events, and configuration snapshots—exportable via RS232 to PC-based calibration management software.
• Open RS232 communication protocol (DB9 interface) compliant with industry-standard SCPI-like command syntax, facilitating integration into automated calibration systems and LIMS platforms.
• Field-upgradable firmware architecture supporting feature enhancements and metrological corrections without hardware replacement.

Sample Compatibility & Compliance

The MC2-II interfaces directly with primary and secondary process sensors used in oil & gas, pharmaceutical, power generation, and chemical manufacturing facilities. It accommodates standard industrial connection formats—including miniature thermocouple plugs, 4 mm banana jacks for electrical signals, and 7-pin aviation connectors for Beamex SPMK-series digital pressure modules (e.g., SPMK517, SPMK518). Its electrical safety design conforms to IEC 61010-1 CAT III 600 V overvoltage category, and electromagnetic compatibility meets IEC 61000-4-2 (ESD), -4-3 (radiated RF), and -4-4 (electrical fast transients) standards. For quality-critical applications, the instrument supports configurable audit trails, electronic signatures, and calibration certificate generation aligned with ISO/IEC 17025 clause 7.7 and ANSI/NCSL Z540-1 traceability requirements.

Software & Data Management

Calibration data captured by the MC2-II—including raw readings, reference values, deviations, pass/fail status, operator ID, and timestamps—is stored internally in non-volatile memory. Records are retrievable via RS232 using Beamex’s free Cal Desktop software or third-party applications leveraging the documented ASCII command set. Cal Desktop enables report generation compliant with ISO 17025 Annex A.3, including uncertainty budgets based on instrument specifications and environmental conditions. The device supports CSV export for integration with enterprise asset management (EAM) and computerized maintenance management systems (CMMS). Firmware updates are performed via serial link using signed binary packages, preserving cryptographic integrity and version control.

Applications

• Field calibration of temperature transmitters, thermocouple assemblies, and RTD probes per ASTM E230/E230M and IEC 60584.
• Verification of 4–20 mA current loops, HART-enabled devices (in analog mode), and pneumatic-to-electric converters.
• Functional safety testing of shutdown valves and emergency stop circuits using continuity and switch timing analysis.
• Commissioning support for DCS and PLC I/O modules, including zero/span adjustment and linearity validation.
• Thermal system commissioning in HVAC, steam distribution, and reactor jacket control loops.
• Support for accredited calibration laboratories performing scope-limited field calibrations under ISO/IEC 17025 accreditation.

FAQ

Does the MC2-II support HART communication?
No—the MC2-II is an analog-only calibrator and does not include HART modulation capability. It supports manual simulation and measurement of 4–20 mA signals used by HART devices but cannot interpret or configure digital HART variables.
Can the MC2-II be used for pressure calibration without external modules?
No—pressure measurement and simulation require optional Beamex SPMK-series digital pressure modules (e.g., SPMK517), which connect via the dedicated 7-pin aviation interface and are powered and read digitally by the host unit.
Is the internal 24 V loop supply isolated from earth ground?
Yes—the 24 V output is fully galvanically isolated from chassis ground, measurement inputs, and signal outputs, enabling safe use in grounded or floating loop configurations.
What is the recommended calibration interval for the MC2-II?
Beamex recommends annual calibration against traceable standards in accordance with ISO/IEC 17025 Clause 6.6; however, interval may be adjusted based on usage frequency, environmental exposure, and internal quality procedures.
Does the MC2-II meet requirements for FDA-regulated environments?
While the instrument itself is not “FDA-certified,” its data integrity features—including timestamped logs, electronic signature support in Cal Desktop, and audit-trail-capable firmware—enable compliance with 21 CFR Part 11 when deployed within validated processes and documented SOPs.