Truelab CFZ850 Precision Laboratory Dehumidifier with Compressor
| Brand | Truelab |
|---|---|
| Origin | Shanghai, China |
| Model | CFZ850 |
| Type | Compressor-Based Desiccant-Enhanced Laboratory Dehumidifier |
| Application | Controlled-Environment Lab Humidity Management |
| Rated Dehumidification Capacity | 50 L/day (at 30°C, 80% RH) |
| Power Input | 850 W (220 V / 50 Hz) |
| Airflow Rate | 50 m³/h |
| Tank Capacity | 8 L |
| Operating Temperature Range | 5–40°C |
| Recommended Coverage Area | 40–60 m² (with ceiling height ≤ 2.6 m) |
| Dimensions (L×W×H) | 549 × 411 × 697 mm |
| Net Weight | 31.5 kg |
| Compressor Type | Rotary |
| Control Interface | Digital Hygrostat with Real-Time RH Display & Adjustable Setpoint |
| Defrost Mode | Automatic (activated below 18°C ambient) |
| Mobility | Four Swivel Casters with Locking Brakes |
| Safety Features | Full-Tank Auto-Shutoff, Overheat Protection, Low-Temperature Defrost Logic |
Overview
The Truelab CFZ850 is a compressor-driven precision dehumidifier engineered specifically for regulated laboratory environments where stable relative humidity (RH) control is critical to sample integrity, instrument calibration stability, and material storage compliance. Unlike general-purpose industrial dehumidifiers, the CFZ850 integrates laboratory-grade hygrostatic regulation with thermally robust refrigeration architecture—utilizing a high-efficiency rotary compressor and optimized evaporator/condenser heat exchange geometry—to maintain consistent moisture removal across fluctuating ambient conditions (5–40°C). Its design targets laboratories requiring continuous, unattended RH management in spaces up to 60 m² (ceiling height ≤ 2.6 m), including analytical instrument rooms, reference material storage cabinets, weighing suites, and controlled-humidity stability chambers. The unit operates on standard single-phase 220 V / 50 Hz power and complies with IEC 60335-1 safety requirements for electrical household and similar appliances, adapted for continuous-duty lab use.
Key Features
- Digital microprocessor-controlled hygrostat with real-time RH readout (0–99% RH, ±3% accuracy) and user-selectable setpoint (30–80% RH in 1% increments)
- Compressor-based refrigeration system with automatic low-temperature defrost logic—activates only when ambient temperature drops below 18°C, minimizing operational interruption
- Left-side horizontal discharge airflow (front intake, left exhaust) ensures optimal air circulation without impeding benchtop workflow or obstructing adjacent equipment
- Integrated 8 L condensate tank with float-switch–triggered auto-shutoff and audible/visual full-tank alert—supports extended unattended operation
- Four heavy-duty swivel casters with locking brakes enable secure repositioning within shared lab zones or modular lab configurations
- UL/CE-certified thermal protection circuitry, reinforced ABS+PP housing, and corrosion-resistant internal coil coating enhance long-term reliability under continuous load
Sample Compatibility & Compliance
The CFZ850 is suitable for humidity-sensitive applications involving hygroscopic standards (e.g., USP Reference Standards, ISO 8573-1 compressed air certification media), moisture-critical instrumentation (FTIR spectrometers, XRD diffractometers, microbalances), and regulated storage of pharmaceutical intermediates, forensic evidence, or archival biological specimens. While not intrinsically rated for hazardous locations, it meets EN 61000-6-3 (EMC emission limits) and EN 61000-6-1 (immunity) for electromagnetic compatibility in shared laboratory infrastructure. It supports GLP-compliant environmental monitoring when paired with external calibrated RH loggers (e.g., Vaisala HMP155) and documented maintenance records per ISO/IEC 17025 Clause 6.4.1.
Software & Data Management
The CFZ850 operates as a standalone hardware-controlled device without embedded networking or cloud connectivity. However, its digital interface supports integration into centralized environmental monitoring systems via optional analog 4–20 mA RH output modules (sold separately) compatible with Siemens Desigo CC, Honeywell Experion, or LabVantage LIMS platforms. All operational parameters—including runtime hours, compressor cycle count, and manual setpoint history—are retained in non-volatile memory for audit-ready service documentation. Firmware updates are performed locally via USB port using Truelab’s certified configuration utility, ensuring traceability per FDA 21 CFR Part 11 Annex 11 requirements when deployed in GxP-regulated labs.
Applications
- Continuous RH stabilization in analytical labs housing hygrosensitive instruments (e.g., Karl Fischer titrators, dynamic vapor sorption analyzers)
- Prevention of condensation-induced drift in optical enclosures and laser alignment setups
- Maintenance of ≤40% RH in desiccator cabinet buffer zones for ASTM E104-controlled humidity testing
- Support of ISO 14644-1 Class 7 cleanroom ancillary conditioning where localized dew point suppression is required
- Backup dehumidification for HVAC failure scenarios in BSL-2 containment labs storing lyophilized biologics
FAQ
Does the CFZ850 support remote monitoring or Ethernet connectivity?
No—the unit is hardware-controlled with no built-in network interface. Remote data acquisition requires third-party analog signal integration or external RH logging.
What is the minimum ambient temperature at which the CFZ850 remains effective?
It operates continuously down to 5°C; automatic defrost activates below 18°C to prevent coil icing, preserving dehumidification efficiency above that threshold.
Is the condensate tank level visible during operation?
Yes—a translucent polycarbonate tank with graduated markings allows visual verification without opening the unit.
Can the CFZ850 be ducted for centralized air handling?
No—it is designed for free-air circulation only; ducting voids the warranty and compromises refrigerant cycle stability.
How often does the air filter require replacement?
Under typical lab conditions (ISO 14644-1 Class 8 environment), the washable electrostatic pre-filter should be cleaned every 30 days and replaced annually or after 500 operating hours.
