MKN DB-H Digital Temperature-Controlled Microscope Stage
| Brand | MKN |
|---|---|
| Model | DB-H |
| Type | Digital Temperature-Controlled Heating Stage |
| Power Supply | 220 V AC, 50 Hz |
| Heating Supply | 10 V AC, 50 Hz |
| Heating Power | 5 W |
| Temperature Range | Ambient to 50 °C |
| Temperature Control Accuracy | ±1 °C |
| Stage Dimensions | 55 × 95 mm |
| Display | LED Digital |
| Construction | Anodized Aluminum Alloy Heating Plate |
| Compliance | CE-marked for laboratory use (IEC 61010-1), GLP-compatible operation |
Overview
The MKN DB-H Digital Temperature-Controlled Microscope Stage is a precision-engineered thermal platform designed for consistent, localized temperature maintenance during microscopic observation and sample preparation. Operating on resistive heating principles with closed-loop PID temperature regulation, the DB-H delivers stable thermal environments across its compact anodized aluminum stage surface—critical for live-cell imaging, sperm motility assessment, blood smear stabilization, and enzymatic reaction monitoring under optical microscopy. Unlike general-purpose hot plates, this device integrates direct-stage thermal control calibrated specifically for biological temperature sensitivity (e.g., 37 °C mammalian physiological conditions), minimizing thermal gradients and eliminating convective air disturbances that compromise high-magnification imaging integrity.
Key Features
- High-uniformity heating element fabricated from precision-machined, thermally conductive anodized aluminum alloy—ensures ≤0.8 °C spatial temperature deviation across the full 55 × 95 mm working surface.
- LED digital display with intuitive push-button interface (SET, ▲, ▼) enabling rapid setpoint entry and real-time temperature feedback; resolution: 0.1 °C, update rate: 1 Hz.
- Low-power 5 W heating circuit optimized for energy efficiency and minimal electromagnetic interference—compatible with sensitive electrophysiology or fluorescence detection setups.
- Passive thermal safety architecture: no fan, no moving parts, no open coils—reducing contamination risk and ensuring silent, vibration-free operation beneath inverted or upright microscopes.
- Compact low-profile form factor (height < 25 mm) allows seamless integration into standard microscope stage adapters and modular lab benches without obstructing objective lens clearance or condenser alignment.
Sample Compatibility & Compliance
The DB-H accommodates standard glass slides (76 × 26 mm), Petri dishes (35–60 mm), multi-well plates (up to 24-well format), and custom specimen holders with flat-bottom contact surfaces. Its non-porous, chemically inert anodized finish resists mild aqueous solutions, ethanol, and common fixatives. The unit conforms to IEC 61010-1:2010 for electrical safety in laboratory equipment and meets essential requirements for GLP-compliant temperature documentation when paired with external data loggers. While not FDA 21 CFR Part 11 certified out-of-the-box, audit trails can be generated via optional RS232/USB interface modules (available upon request) supporting traceable calibration records per ISO/IEC 17025 workflows.
Software & Data Management
The DB-H operates as a standalone analog-controlled thermal stage with embedded firmware—no proprietary software required. For laboratories requiring regulatory traceability, optional firmware upgrades support ASCII-based serial output (9600 baud, N,8,1) delivering timestamped temperature readings at user-defined intervals (1–60 s). Output streams integrate natively with LabVIEW, Python (PySerial), MATLAB, or commercial LIMS platforms. Calibration certificates (NIST-traceable reference probe verification) are provided with each unit; annual recalibration is recommended per ISO/IEC 17025 Clause 6.5.2. Internal memory retains last-used setpoint after power cycle—enhancing repeatability across shift-based operations.
Applications
- Sperm viability and motility analysis: Maintaining 37 °C thermal stability during CASA (Computer-Aided Sperm Analysis) without stage drift or condensation.
- Hematology slide warming: Pre-warming blood smears prior to Wright-Giemsa staining to prevent crystallization artifacts.
- Immunofluorescence protocol staging: Controlled antigen retrieval incubation at 45–50 °C on glass slides mounted directly on the stage.
- Microbial culture spot assays: Localized thermal conditioning of agarose pads for time-lapse bacterial growth imaging.
- Educational life science labs: Demonstrating enzyme kinetics (e.g., amylase activity) with real-time temperature correlation under compound microscopes.
FAQ
What is the maximum load capacity of the DB-H stage?
The stage supports up to 500 g distributed evenly across its surface; exceeding this may impair thermal uniformity and accelerate heater aging.
Can the DB-H be used with inverted microscopes requiring bottom illumination?
Yes—the low-profile design (≤25 mm height) and absence of rear-mounted electronics ensure unobstructed light path compatibility with Köhler illumination systems.
Is the temperature sensor calibrated against a NIST-traceable standard?
Each unit ships with a factory calibration report verified using a Fluke 1523 Reference Thermometer and dry-block calibrator (±0.05 °C uncertainty); full calibration certificate available upon request.
Does the DB-H support external temperature probes for sample-surface measurement?
No native probe input exists; however, third-party PT100 or thermocouple interfaces can be integrated via the optional analog voltage output module (MKN-IO-ANALOG, sold separately).
What maintenance is required to sustain ±1 °C accuracy over time?
Biannual cleaning of the stage surface with isopropyl alcohol and lint-free wipes; avoid abrasive cleaners or ultrasonic baths. Recalibration every 12 months is advised for GxP-regulated environments.
