Drick CF87 Intelligent Temperature & Humidity Field Calibration System

Overview

The Drick CF87 Intelligent Temperature & Humidity Field Calibration System is a high-precision, multi-channel field verification instrument engineered for metrological traceability in environmental test equipment calibration. It operates on the principle of parallel analog-to-digital conversion with embedded sensor intelligence, enabling simultaneous acquisition and real-time processing of temperature and humidity data across up to 32 independent channels. Designed in strict accordance with national metrological verification regulations—including JJF 1101–2019 (Calibration of Temperature and Humidity Parameters in Environmental Test Equipment), JJF 1564–2016 (Calibration of Temperature-Humidity Standard Chambers), JJF 1376–2012 (Calibration of Box-Type Resistance Furnaces), GB 9452–1988, and JB/T 5502–1991—the CF87 serves as a primary field reference standard for accredited laboratories, quality control departments, and national metrology institutes performing in-situ calibration of climate chambers, incubators, ovens, autoclaves, cold rooms, and aging test cabinets.

Key Features

• 32-channel parallel measurement architecture: completes full-cycle acquisition across all channels in ≤2 seconds, minimizing thermal drift during dynamic field measurements.
• Intelligent sensor interface: Pt100 (Class A, 4-wire), K-type thermocouple (Industrial Grade I), and Rotronic digital humidity sensors are auto-recognized upon insertion—no channel-specific configuration required.
• Embedded calibration memory: correction coefficients (e.g., thermistor resistance offsets, thermocouple EMF corrections) are stored directly in the sensor’s integrated digital module, ensuring traceability and eliminating manual channel mapping.
• Dual power operation: supports AC 220 V ±10% / 50 Hz ±5% or DC input via external power bank (DC mode disables thermal printer functionality).
• Onboard 5.6-inch color capacitive touchscreen with intuitive metrology-focused UI, supporting multi-language navigation and context-sensitive help.
• Gold-plated connectors and fully digital signal transmission path from sensor tip to ADC ensure immunity to electromagnetic interference and long-term signal integrity.
• Integrated thermal printer enables immediate hard-copy generation of calibration records during field audits or GLP-compliant inspections.

Sample Compatibility & Compliance

The CF87 is validated for use with a broad spectrum of temperature- and humidity-controlled enclosures, including but not limited to: constant-temperature/humidity chambers, biological incubators, water baths, thermal shock test chambers, drying ovens, cement curing boxes, pharmaceutical refrigerators, walk-in cold rooms, steam sterilizers (autoclaves), and box-type resistance furnaces. All sensor types comply with ISO/IEC 17025 requirements for measurement uncertainty evaluation, and the system supports automated calculation of combined standard uncertainty per GUM (JCGM 100:2008). Sensor configurations meet the minimum performance criteria specified in JJF 1101–2019 for spatial uniformity and temporal stability assessment. The device itself is CE-marked for EMC and low-voltage directive compliance, and its firmware architecture supports audit trail logging for FDA 21 CFR Part 11–aligned environments when used with validated software configurations.

Software & Data Management

The CF87 includes a Windows-based desktop application for post-processing, report generation, and certificate authoring. Raw data files (CSV and proprietary binary format) are exportable via USB flash drive. The software performs automatic uncertainty budgeting per ISO/IEC 17025 Annex A.3, incorporating contributions from sensor accuracy, resolution, thermal EMF, lead resistance, and interpolation error. Calibration certificates generated by the software include traceable identification of reference standards, environmental conditions at time of measurement, and full metadata (operator ID, location, equipment ID, sensor serial numbers). Data export supports direct integration into LIMS platforms via standardized CSV schema. Firmware updates are delivered via secure signed packages; version history and change logs are retained internally for regulatory review.

Applications

• Verification of temperature and humidity uniformity/stability in environmental test chambers per ISO 14644-3 and IEC 60068-3-5.
• In-situ calibration of pharmaceutical stability chambers (ICH Q5C), cleanroom monitoring systems, and vaccine cold chain validation points.
• Periodic verification of industrial drying ovens and heat treatment furnaces against ASTM E220 and ISO 8573-1.
• Supporting GLP/GMP audits through automated record generation, electronic signature capability, and revision-controlled certificate templates.
• Field deployment for third-party calibration service providers conducting on-site assessments under CNAS accreditation scope.

FAQ

What sensor types does the CF87 support natively?
It supports Class A Pt100 (−200 °C to +300 °C), Industrial Grade I K-type thermocouples (0 °C to +1100 °C), and Rotronic digital humidity sensors (0–100 %RH). Custom sensor configurations (e.g., extended-range thermocouples) are available upon request.
Can the CF87 perform uncertainty analysis per ISO/IEC 17025?
Yes—the onboard firmware and companion software implement GUM-compliant uncertainty propagation, automatically calculating combined standard uncertainty using input parameters defined in JJF 1059.1–2012.
Is the system compatible with FDA 21 CFR Part 11 requirements?
When deployed with validated software settings, electronic signatures, and audit-trail-enabled firmware (v3.2+), the CF87 meets predicate controls for Part 11 compliance in regulated environments.
Does the device require channel-specific sensor pairing?
No—sensor correction data is stored within each intelligent probe’s embedded memory chip, allowing any sensor to be inserted into any channel without recalibration or reconfiguration.
What is the maximum storage capacity for field measurement records?
Internal memory retains ≥500 complete multi-channel calibration sessions; additional storage is available via USB mass storage export.