OHAUS SHEX1619DG Extreme-Environment Orbital Shaker
| Brand | OHAUS |
|---|---|
| Origin | USA |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Imported |
| Model | SHEX1619DG |
| Instrument Type | Refrigerated/Heated Orbital Shaker |
| Timer Range | 1 s to 160 h |
| Oscillation Speed | 15–500 rpm |
| Temperature Range | −10 to 60 °C |
Overview
The OHAUS SHEX1619DG Extreme-Environment Orbital Shaker is an engineered solution for precise, reliable agitation under demanding incubation conditions—specifically designed for integration within CO2 incubators and high-humidity environments (up to 100% RH). Unlike standard shakers, the SHEX1619DG features a fully sealed, corrosion-resistant housing with IP65-rated electronics and moisture-tolerant motor components, enabling uninterrupted operation inside humidified, temperature-controlled enclosures where condensation and gas exposure are routine. Its orbital motion profile (25 mm diameter) ensures gentle yet uniform mixing ideal for adherent and suspension cell cultures, microbial growth studies, and biochemical assays requiring consistent oxygen transfer and nutrient homogenization. The unit employs closed-loop speed control via microprocessor-regulated DC motor drive, delivering high reproducibility across its full 15–500 rpm range—even during ramp-up or prolonged continuous operation.
Key Features
- IP65-rated enclosure with conformal-coated circuitry and stainless-steel fasteners for long-term reliability in 100% RH and CO2-enriched atmospheres
- Integrated magnetic mounting system allows secure, tool-free installation on standard incubator interior walls without compromising chamber integrity
- Precise microprocessor-based temperature regulation with dual-stage Peltier cooling/heating and high-stability platinum RTD sensing (±0.3 °C accuracy over −10 to 60 °C range)
- Programmable timer supporting intervals from 1 second to 160 hours, with auto-restart and pause/resume functionality
- Orbital platform with 25 mm throw optimized for flask stability and minimal shear stress on sensitive eukaryotic cells
- Real-time speed and temperature display with password-protected parameter locking for GLP-compliant workflows
Sample Compatibility & Compliance
The SHEX1619DG accommodates standard laboratory vessels including Erlenmeyer flasks (up to 5 L), Petri dishes, multi-well plates (6–96-well), and culture tubes—secured via optional universal clamps or custom-fit platforms. Its design conforms to ISO 13485 manufacturing standards and supports compliance with FDA 21 CFR Part 11 requirements when paired with OHAUS LogPro™ software (audit trail, electronic signatures, user access levels). All thermal and mechanical performance data are traceable to NIST-calibrated reference instruments. The unit meets IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emissions) for electromagnetic compatibility in shared lab environments.
Software & Data Management
OHAUS LogPro™ v3.2 software enables remote configuration, real-time monitoring, and automated data logging of speed, temperature, elapsed time, and error codes via USB or optional RS-232 interface. Logged datasets include timestamped metadata (operator ID, protocol name, environmental flags) and support CSV export for LIMS integration. Audit trails record all parameter changes with user attribution and time stamps—fully compliant with GLP and GMP documentation requirements. Firmware updates are performed securely through signed binary packages verified at boot level.
Applications
- Mammalian and insect cell culture in CO2 incubators, including CHO, HEK293, Sf9, and hybridoma lines
- Microbial fermentation studies under controlled hypothermic or thermophilic conditions (e.g., E. coli, S. cerevisiae)
- Antibody production and protein expression workflows requiring sustained agitation during induction phases
- Stem cell expansion protocols where shear sensitivity mandates precise orbital kinetics
- Environmental microbiology assays involving psychrophilic or mesophilic isolates under regulated humidity
- Diagnostic reagent development requiring batch-to-batch consistency under validated thermal-agitation profiles
FAQ
Can the SHEX1619DG be used inside a standard CO2 incubator without voiding the incubator warranty?
Yes—the magnetic mounting system eliminates drilling or adhesive use, preserving incubator integrity; OHAUS provides compatibility documentation for major incubator OEMs (Thermo Fisher, Eppendorf, Binder).
Is temperature calibration traceable to national standards?
Yes—each unit ships with a factory calibration certificate referencing NIST-traceable RTD standards; field recalibration is supported using OHAUS-certified service tools.
Does the shaker support programmable ramping profiles (e.g., gradual speed increase)?
No—speed transitions are linear and user-defined via setpoint; however, microprocessor control ensures smooth acceleration without overshoot or oscillation.
What safety mechanisms prevent overheating or motor stall under load?
Dual thermal cutoffs (motor winding + heat sink), current-limiting drive logic, and automatic shutdown upon sustained overload (>120 s at >110% torque) are embedded in firmware.
Is the platform compatible with sterile filtration setups or laminar flow hood integration?
The unit is not rated for Class II biosafety cabinet use due to airflow interference; however, it may be installed upstream of laminar flow systems when placed outside the hood perimeter per ISO 14644-1 guidelines.
