testo 190-P1-CFR Pressure Data Logger

Overview

The testo 190-P1-CFR Pressure Data Logger is a purpose-built, FDA-compliant validation instrument engineered for rigorous process monitoring in regulated pharmaceutical manufacturing environments. Designed specifically for steam sterilization (autoclaving) and lyophilization (freeze-drying) cycle qualification, it operates on the principle of high-stability piezoresistive pressure sensing to deliver traceable, absolute pressure measurements across a calibrated range of 1 mbar to 4 bar abs. Its stainless-steel housing and PEEK-sealed battery compartment ensure full integrity under extreme thermal cycling—up to +140 °C—and maintain IP68-rated protection against moisture and particulate ingress during chamber loading, sterilization, and post-cycle handling. The device meets the foundational hardware requirements for electronic records and signatures as defined under U.S. FDA 21 CFR Part 11, enabling its use in GMP-compliant validation protocols where data integrity, auditability, and long-term traceability are mandatory.

Key Features

• High-precision absolute pressure measurement with ±20 mbar accuracy and 1 mbar resolution, validated across the full operational temperature range (0–140 °C)
• Robust mechanical architecture: seamless stainless-steel body (AISI 316L equivalent) with chemically resistant PEEK polymer sealing cap—designed for repeated autoclave exposure without degradation
• Tool-free, rotation-thread battery replacement mechanism enabling sub-second battery swap while preserving 100% hermetic seal—critical for maintaining calibration continuity between validation runs
• Compact cylindrical form factor (Ø22 × 83 mm) optimized for insertion into narrow sterilizer trays, freeze-dryer shelves, and chamber crevices without obstructing steam flow or heat transfer
• Onboard memory stores up to 60,000 timestamped pressure readings with configurable logging intervals from 1 second to 24 hours
• Fast dynamic response (t₉₀ = 0.2 s) ensures accurate capture of transient overpressure events and vacuum pull-down phases during cycle ramp-up and cooldown

Sample Compatibility & Compliance

The testo 190-P1-CFR is validated for direct integration into sterilization and lyophilization load configurations—including porous loads, liquid-filled vials, and bulk powder containers—without requiring external transducers or cabling that compromise chamber sterility. Its sealed construction eliminates risk of microbial ingress or condensate contamination during wet-heat processes. The device conforms to ISO 11137 (radiation sterilization), ISO 11140 (chemical indicator systems), and supports compliance with EU Annex 1 (sterile product manufacturing) and USP (sterilization principles). When paired with the dedicated testo 190 CFR software (sold separately), it delivers full 21 CFR Part 11 compliance—including electronic signature workflows, user access controls, audit trail generation, and immutable data archiving—required for FDA inspections and internal quality audits.

Software & Data Management

Data retrieval, configuration, and analysis are performed exclusively via the testo 190 CFR software—a validated Windows application developed in accordance with IEC 62304 (medical device software lifecycle) and aligned with GAMP 5 guidance. The software enables simultaneous programming and readout of up to eight 190-P1-CFR loggers via the optional Multi-Reader Docking Station, eliminating manual unit-by-unit handling. All measurement files are stored in encrypted binary format with embedded metadata (device ID, calibration certificate ID, operator login, timestamp, environmental context). Export options include CSV (for LIMS integration), PDF reports with configurable cover pages, and XML formats compatible with enterprise validation management systems (VMS). Audit trails record every configuration change, data export, and user action with time/date stamp and authenticated user ID—fully compliant with ALCOA+ data integrity principles.

Applications

• Temperature-pressure correlation mapping during saturated steam sterilization (e.g., depyrogenation tunnels, autoclaves)
• Chamber leak rate testing (helium-free method) via pressure decay analysis per ISO 11607-2
• Freeze-dryer shelf temperature uniformity qualification using pressure-based chamber vacuum stability metrics
• Validation of vacuum hold tests and backfill gas introduction sequences in lyophilization cycles
• Monitoring of overpressure safety interlocks during high-temperature dry heat sterilization
• Supporting PQ/UQ documentation packages for regulatory submissions (FDA, EMA, PMDA)

FAQ

Is the testo 190-P1-CFR supplied with factory calibration documentation?
Yes—each unit ships with an accredited calibration certificate traceable to national standards (DKD/DAkkS), including as-found and as-left pressure points across the full 1 mbar–4 bar range.
Can the device be reused across multiple sterilization cycles without recalibration?
Yes—the robust sensor design and hermetic sealing allow for ≥500 autoclave cycles (121 °C, 20 min) without performance drift; annual recalibration is recommended per ISO/IEC 17025 and internal SOPs.
Does the Multi-Reader Docking Station require separate power or drivers?
No—it connects via USB 2.0 and draws power directly from the host PC; no additional drivers or firmware updates are required for Windows 10/11 compatibility.
What happens if the battery depletes mid-cycle?
The logger retains all stored data in non-volatile memory; however, continuous logging ceases. Battery life is rated at 2,500 hours under typical 10-second interval operation at +121 °C—equivalent to >100 full sterilization cycles.
Is the testo 190 CFR software validated for use in regulated environments?
Yes—the software includes a comprehensive validation package (IQ/OQ protocols, risk assessment, and traceability matrix) supporting installation and operational qualification in GxP settings.