AMAE EE-35Pro Intelligent Dry Gas Flow Calibrator

Overview

The AMAE EE-35Pro Intelligent Dry Gas Flow Calibrator is a high-precision, positive displacement flow measurement instrument engineered for primary-level calibration of gas sampling devices in environmental monitoring, occupational health & safety, and industrial hygiene laboratories. Operating on the principle of volumetric displacement—where gas volume is measured by mechanical rotation of precision-machined internal rotors—the EE-35Pro delivers traceable, NIST-traceable-capable flow verification without reliance on external reference standards or wet-test methods. Its 1–35 L/min range covers critical applications including low-flow personal air samplers (e.g., OSHA ID-121, NIOSH 0500), medium-flow area monitors, and portable VOC analyzers. The device meets the metrological requirements for field and laboratory-based calibration per ISO 6145-5 (gas mixtures by dynamic volumetric method) and supports compliance with EPA Method TO-15 and ASTM D6196 validation protocols.

Key Features

• Positive displacement architecture ensures inherent linearity and minimal dependency on gas composition, temperature, or pressure fluctuations within operating limits (15–30 °C, 80–106 kPa).
• Integrated real-time temperature and pressure compensation algorithms (based on ideal gas law corrections) enable accurate volumetric-to-standard-cubic-liter conversion (SLPM at 25 °C, 101.325 kPa).
• Dual-mode operation: manual single-point verification and fully automated multi-point calibration sequences via AMAE Calibration Suite.
• Embedded non-volatile memory stores ≥500 calibration events with timestamp, operator ID, ambient conditions, and pass/fail status—each record cryptographically signed for data integrity.
• Compact form factor (240 × 180 × 120 mm) and sub-2.8 kg mass enable deployment in mobile labs, field vans, or confined sampling stations.
• RS-232 and USB-C interfaces support bidirectional communication with host PCs and compatibility with third-party LIMS platforms via ASCII command protocol.

Sample Compatibility & Compliance

The EE-35Pro is validated for use with clean, dry, non-corrosive gases—including ambient air, nitrogen, oxygen, and synthetic calibration blends (up to 10% CO₂). It is not intended for use with condensable vapors, particulate-laden streams, or aggressive gases (e.g., Cl₂, H₂S, NH₃) without optional filtration or conditioning modules. All firmware and calibration routines comply with ISO/IEC 17025:2017 Clause 6.5 (traceability of measurements) and support 21 CFR Part 11 compliance when deployed with AMAE Calibration Suite’s electronic signature module. Device firmware includes built-in self-diagnostic routines (rotor speed stability check, sensor drift alert, and memory checksum validation) to satisfy GLP audit requirements.

Software & Data Management

The EE-35Pro operates exclusively with AMAE Calibration Suite v3.2—a Windows-based application certified for FDA-regulated environments. The software provides role-based user access control (administrator, technician, reviewer), automatic generation of ISO/IEC 17025-compliant calibration certificates (including uncertainty budgets per GUM), and secure export to CSV, PDF/A-2, or XML formats. Audit trails record all configuration changes, calibration actions, and data exports with immutable timestamps and operator attribution. Data synchronization with cloud-hosted platforms (e.g., AMAE CloudCal) is supported via TLS 1.2–encrypted HTTPS endpoints, enabling centralized oversight across multi-site QA/QC programs.

Applications

• Periodic verification and adjustment of personal sampling pumps used in respirable dust and metal fume monitoring.
• Factory acceptance testing (FAT) of new gas analyzers prior to installation in continuous emission monitoring systems (CEMS).
• Field calibration of portable photoionization detectors (PIDs) and electrochemical sensors under variable ambient conditions.
• Supporting accredited laboratories in maintaining scope of accreditation for ISO/IEC 17025 Clause 5.10 (reporting of results).
• Training and proficiency testing for industrial hygienists conducting NIOSH-approved sampling methodologies.

FAQ

Is the EE-35Pro suitable for calibrating mass flow controllers (MFCs)?

Yes—when operated in volumetric mode with appropriate gas-specific correction factors applied in software; however, direct mass flow calibration requires optional thermal mass flow sensor integration.
Does the device require annual factory recalibration?

No mandatory annual recalibration is specified; users may perform in-house verification using certified reference flows or send units to AMAE-accredited service centers every 24 months for full metrological revalidation.
Can the EE-35Pro generate uncertainty budgets compliant with GUM?

Yes—AMAE Calibration Suite v3.2 automatically calculates and documents combined standard uncertainty components (flow repeatability, temperature/pressure sensor error, rotor geometry tolerance, and timebase resolution) per JCGM 100:2008.
Is it compatible with LIMS systems such as LabWare or Thermo Fisher SampleManager?

Yes—via configurable ASCII output mapping and RESTful API endpoints provided in the Enterprise Edition of AMAE Calibration Suite.
What maintenance is required between calibrations?

Routine inspection of inlet/outlet fittings and rotor housing for particulate accumulation; no lubrication or disassembly is required under normal operating conditions.