OHAUS ISLDMPHDGL Precision Incubated Orbital Shaker

Overview

The OHAUS ISLDMPHDGL Precision Incubated Orbital Shaker is an engineered platform for controlled, temperature-regulated orbital motion in life science laboratories. Designed around the principle of uniform circular oscillation—generated via a brushless DC motor coupled to a triple-eccentric drive mechanism—the instrument delivers reproducible 3 mm orbit diameter motion across its aluminum alloy tray surface. Unlike generic shakers, this model integrates precise thermoregulation (ambient +5°C to 65°C) with high-speed rotational control (100–1200 rpm), enabling consistent suspension of sensitive biological samples under defined thermal and mechanical conditions. Its compact footprint (43.2 cm × 27.9 cm × 19.7 cm) and die-cast aluminum chassis support stable operation during extended incubation protocols, while the polycarbonate transparent lid ensures visual monitoring without compromising chamber integrity or temperature homogeneity.

Key Features

• Brushless DC motor with triple-eccentric drive architecture ensures low-vibration, maintenance-free operation and long-term speed stability (±2% accuracy across full range)
• Independent digital LED display simultaneously shows real-time temperature, rotational speed, and remaining timer—no mode cycling required for parameter verification
• Temperature control system maintains ±0.5°C uniformity at 37°C, validated per internal calibration protocol; adjustable setpoint resolution of 0.1°C
• Orbital motion optimized for microplate-based workflows: accommodates up to four standard 96-well plates or two universal microtube racks on a 27.9 cm × 19.7 cm anodized aluminum tray
• Integrated safety subsystems include electronic overload protection, automatic over-temperature cutoff with visual indicator, and spill-resistant tray design compliant with ISO 13485-aligned handling practices
• CE- and TÜV-certified electrical architecture meets IEC 61010-1 requirements for laboratory equipment; dual 230 V input supports uninterrupted operation in regulated environments

Sample Compatibility & Compliance

The ISLDMPHDGL is routinely deployed in applications requiring simultaneous thermal stabilization and gentle agitation—including mammalian cell suspension culture, bacterial growth kinetics, ELISA plate incubation, hybridization buffer equilibration, and antibody-antigen binding assays. Its sealed chamber and non-condensing operating envelope (5–40°C, ≤80% RH) ensure compatibility with humidity-sensitive reagents and coated assay surfaces. The unit complies with essential regulatory expectations for GLP-compliant labs: temperature and speed parameters are user-accessible for documentation, and the digital interface supports manual log entry for audit trails. While not inherently 21 CFR Part 11 compliant, its deterministic control logic and non-volatile parameter storage enable integration into validated workflows when paired with external electronic lab notebook (ELN) systems.

Software & Data Management

This shaker operates as a standalone hardware-controlled instrument without embedded firmware-based data logging. All operational parameters—including setpoints, runtime, and active status—are displayed in real time but not automatically recorded or exportable. For traceability, users may manually record settings using the built-in timer and independent value displays. The absence of USB or Ethernet connectivity reflects its design intent: a robust, interference-resistant platform prioritizing mechanical reliability over digital feature bloat. Calibration records (temperature and speed) are retained per OHAUS service documentation standards and may be referenced during internal QA audits or third-party equipment qualification (IQ/OQ/PQ).

Applications

• Cell culture maintenance: continuous agitation of suspension-adapted CHO or HEK293 lines at 37°C and 150–250 rpm to prevent sedimentation and enhance nutrient/gas exchange
• Microbial growth profiling: time-resolved OD600 measurements of E. coli cultures under varying temperature–speed combinations to map optimal expression conditions
• Immunoassay processing: uniform mixing of capture antibody-coated plates during blocking, primary/secondary incubation, and wash steps to reduce edge effects and inter-well variability
• Nucleic acid hybridization: controlled agitation of nylon membranes during pre-hybridization and probe hybridization steps at 42–65°C to improve probe penetration kinetics
• Enzyme kinetics studies: synchronized temperature–agitation profiles for multi-step reaction cascades involving thermostable polymerases or restriction endonucleases

FAQ

What is the minimum temperature setting relative to ambient?
The unit can maintain temperatures starting at ambient +5°C—no sub-ambient cooling capability is provided.
Can the shaker accommodate deep-well plates or custom tube racks?
Yes, the 27.9 cm × 19.7 cm tray supports standard ANSI/SLAS-compliant microplates and third-party tube holders, provided total load does not exceed 5 kg and center-of-mass remains within the tray’s geometric centroid.
Is temperature calibration traceable to NIST standards?
OHAUS provides factory calibration certificates with uncertainty statements; field recalibration requires authorized service technicians using NIST-traceable reference probes.
Does the timer support repeat-cycle programming?
No—the timer functions as a single-interval countdown (1 second to 160 hours); multi-stage protocols must be managed externally.
What maintenance is required for the brushless DC motor?
None—brushless construction eliminates commutator wear; periodic inspection of eccentric drive coupling and tray mounting screws is recommended annually per OHAUS preventive maintenance guidelines.