Jinye B-220 Precision Water Bath
| Brand | Jinye |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | B-220 |
| Temperature Range | Ambient to 99 °C |
| Temperature Control Accuracy | ±1 °C |
| Bath Chamber Dimensions | 22 × 11.5 cm (L × W) |
| Heating Power | 1 kW |
| External Dimensions (W × D × H) | 32 × 28 × 18 cm |
Overview
The Jinye B-220 Precision Water Bath is a compact, benchtop thermostatic immersion system engineered for stable and uniform temperature maintenance in laboratory applications requiring precise thermal control between ambient and 99 °C. Utilizing resistive heating elements coupled with a PID-controlled feedback loop, the unit maintains consistent thermal equilibrium across the entire bath chamber—critical for enzymatic reactions, cell culture incubation, sample warming prior to analysis, dissolution testing, and calibration of temperature-sensitive instrumentation. Its stainless steel inner tank ensures chemical resistance and long-term corrosion stability, while the insulated housing minimizes external heat transfer and energy consumption. Designed for routine use in QC laboratories, academic research settings, and pharmaceutical pre-analytical workflows, the B-220 complies with fundamental safety and performance expectations aligned with IEC 61010-1 for electrical equipment used in laboratory environments.
Key Features
- Stable PID-based temperature regulation delivering ±1 °C accuracy across the full operating range (ambient to 99 °C)
- Compact footprint (32 × 28 × 18 cm) optimized for space-constrained lab benches without compromising functional capacity
- Stainless steel bath chamber (22 × 11.5 cm) resistant to aqueous reagents, mild acids, and common organic solvents
- 1 kW heating system enabling rapid thermal ramp-up and recovery after sample insertion
- Digital LED display with intuitive push-button interface for direct setpoint entry and real-time temperature monitoring
- Over-temperature protection circuitry preventing uncontrolled thermal excursion and safeguarding both samples and equipment
- Non-slip rubber feet and reinforced chassis ensuring mechanical stability during extended operation
Sample Compatibility & Compliance
The B-220 accommodates standard laboratory glassware including test tubes (up to 25 mm diameter), centrifuge tubes, beakers (≤500 mL), and small flasks when immersed in water or compatible heat-transfer fluids (e.g., silicone oil up to 150 °C with optional accessory kit). It supports protocols requiring GLP-aligned documentation where manual temperature logging is performed, and its consistent thermal profile meets foundational requirements for USP environmental conditioning steps and ISO/IEC 17025-accredited labs performing temperature-dependent sample preparation. While not inherently 21 CFR Part 11 compliant (as it lacks electronic audit trail functionality), the unit may be integrated into validated workflows via external data loggers meeting FDA-regulated traceability standards.
Software & Data Management
The B-220 operates as a standalone analog-digital hybrid instrument with no embedded firmware or network connectivity. Temperature setpoints and real-time readings are displayed locally on the front-panel LED screen; no proprietary software, drivers, or cloud services are required. For laboratories requiring electronic recordkeeping, third-party USB or RS-232 data loggers (e.g., Omega OM-DAQPRO series or Testo 176 T4) can be interfaced via optional analog output modules (0–5 V or 4–20 mA) to capture time-stamped temperature traces compliant with internal SOPs or external regulatory audits. All configuration parameters remain user-adjustable without password protection or firmware lock-in.
Applications
- Pre-warming reagents and media in molecular biology and microbiology workflows
- Controlled dissolution of polymers and excipients during formulation development
- Thermal equilibration of viscosity standards prior to rheometer calibration
- Incubation of enzyme assays under non-shaking conditions
- Temperature stabilization of spectrophotometer cuvettes and reference cells
- Supporting ASTM D1500 (petroleum color), ISO 3104 (kinematic viscosity), and USP (melting point) preparatory steps
- General-purpose heating for histology processing, ELISA plate incubation, and buffer equilibration
FAQ
Does the B-220 support external temperature probe input for chamber monitoring?
No—the unit relies solely on its built-in platinum RTD sensor positioned at the bath center. External probe integration requires aftermarket data acquisition hardware.
Can the bath operate continuously for 72+ hours?
Yes—designed for unattended operation within specified ambient conditions (15–30 °C, ≤80% RH) and proper ventilation clearance (≥10 cm on all sides).
Is the stainless steel tank electropolished or passivated?
The chamber undergoes standard industrial passivation per ASTM A967 but is not electropolished; surface finish meets ISO 8502-3 Class C for general lab corrosion resistance.
What is the maximum recommended fill level for optimal thermal uniformity?
Fill to 2–3 cm below the top rim (approx. 2.5 L capacity) to ensure circulation efficiency and prevent overflow during thermal expansion.
Are replacement parts such as heaters or controllers available directly from Jinye?
Yes—original spare parts including heating assemblies, PID controllers, and stainless steel tanks are supplied through authorized Jinye distribution channels with documented traceability.
