Drick CF88 Multi-Channel Temperature & Humidity巡检仪

Overview

The Drick CF88 Advanced Multi-Channel Temperature and Humidity Calibration System is a metrology-grade field instrument engineered for high-reproducibility environmental chamber validation and calibration. It operates on the principle of simultaneous multi-point thermodynamic parameter acquisition—utilizing precision Pt100 resistance thermometers, K-type thermocouples, and capacitive polymer humidity sensors—to quantify spatial and temporal variations in temperature and relative humidity across controlled environments. Designed specifically for compliance-driven applications in metrology laboratories, pharmaceutical QC facilities, and industrial calibration centers, the CF88 meets the stringent traceability and documentation requirements defined in national verification regulations including JJF 1101-2019 (Environmental Test Equipment Calibration Specification), JJF 1564-2016 (Calibration of Temperature-Humidity Standard Chambers), and JJF 1376-2012 (Box-Type Resistance Furnace Calibration). Its architecture supports full-cycle uncertainty evaluation per ISO/IEC 17025:2017 Annex A.3 and aligns with GLP/GMP data integrity expectations through audit-trail-capable data logging and certificate generation.

Key Features

• 32 independent temperature and 32 independent humidity input channels—fully concurrent acquisition with <2-second full-channel scan cycle time.
• Smart sensor architecture: calibration coefficients (including Pt100 Callendar-Van Dusen parameters and thermocouple cold-junction compensation) are stored in embedded EEPROM modules at the sensor tail—eliminating channel-specific mapping and enabling plug-and-play sensor interchangeability.
• Integrated thermal printer for real-time, post-test, and historical report printing—operational only under AC power; DC operation (via external power bank) disables printing but maintains full measurement functionality.
• 5.6-inch capacitive color touchscreen interface with intuitive metrology workflow navigation—supports direct parameter selection from built-in calibration procedures (e.g., JJF 1101-2019 Annex B, GB 9452-1988 test protocols).
• Full digital signal chain: gold-plated connectors and shielded differential signaling ensure immunity to EMI and long-term signal fidelity—no analog-to-digital conversion loss at the host interface.
• Onboard data storage with USB mass-storage mode: enables export of raw time-stamped datasets, auto-generated calibration certificates (PDF/CSV), and expanded uncertainty budgets compliant with GUM (JCGM 100:2008).

Sample Compatibility & Compliance

The CF88 is validated for use with a broad spectrum of environmental test equipment requiring periodic verification or accreditation-level calibration. Compatible systems include: constant-temperature/humidity chambers, biological incubators, stability testing cabinets, autoclaves, dry heat sterilizers, climate simulation chambers, cement curing rooms, refrigerated warehouses, and high-temperature muffle furnaces. Sensor configurations support both standard laboratory-grade validation (e.g., ISO 14644-3 particle-free zones) and regulated manufacturing environments governed by FDA 21 CFR Part 11 (electronic records/signatures) when paired with secure USB certificate export workflows. All factory calibrations are traceable to CNAS-accredited reference standards (NIM/NIM-IR), and system-level verification follows JJF 1059.1-2012 for uncertainty evaluation methodology.

Software & Data Management

The CF88 operates without external PC dependency—its embedded Linux-based firmware handles all acquisition, processing, and reporting tasks locally. Data is timestamped with internal RTC (±2 s/month drift) and logged with metadata including operator ID, ambient conditions (pressure, humidity), and sensor serial numbers. USB export generates three standardized outputs: (1) raw binary log files with IEEE 754 floating-point values; (2) ISO/IEC 17025-compliant calibration certificates containing measurement results, uncertainties, traceability statements, and pass/fail determinations per specification limits; and (3) CSV-formatted datasets compatible with LIMS integration (e.g., LabWare, STARLIMS). Audit trails record all configuration changes, calibration events, and user logins—retained for ≥12 months onboard.

Applications

• Periodic verification of temperature uniformity and humidity stability in pharmaceutical stability chambers per ICH Q1A(R2) and USP .
• Validation of HVAC systems in cleanrooms (ISO 14644-1 Class 5–8) using point-mapping protocols.
• Calibration of reference-grade humidity generators and dew-point standards against NIST-traceable hygrometers.
• Thermal mapping of autoclave load patterns during PQ qualification per EN 285 and ISO 17665-1.
• Field metrology support for third-party calibration service providers performing on-site chamber certification.
• Research-grade environmental profiling in material aging studies (e.g., polymer degradation, battery thermal cycling).

FAQ

Does the CF88 support remote monitoring via Ethernet or Wi-Fi?
No—the CF88 is a standalone, battery-optional field instrument with no network interface. Data exchange occurs exclusively via USB mass-storage mode.
Can humidity sensors be calibrated independently of temperature sensors?
Yes—each channel supports individual two-point RH calibration using certified humidity standards (e.g., saturated salt solutions or NIST-traceable humidity generators).
Is the internal clock synchronized to GPS or NTP?
No—it relies on an onboard temperature-compensated crystal oscillator (TCXO) with documented drift specifications; external time sync requires manual UTC offset entry.
What is the maximum allowable cable length between sensor and host without signal degradation?
For Pt100 sensors: up to 50 m with 4-wire configuration and twisted-pair shielding (tested per IEC 61000-4-6); for K-type thermocouples: ≤15 m with compensating extension wire (IEC 60584-3).
Does the device comply with FDA 21 CFR Part 11 for electronic records?
The CF88 itself does not implement electronic signatures or role-based access control; however, its output files (certificates, logs) meet Part 11 record retention and authenticity requirements when managed within a validated LIMS or document control system.