Laboratory Water Bath (DWB20-S)

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The Laboratory Water Bath (DWB20-S) is a digital benchtop water bath with 20-liter capacity, designed for precise temperature-controlled incubation of clinical samples, reagents, and diagnostic test preparations in clinical diagnostic and research laboratories . With a temperature range from ambient +5°C to 99.9°C and temperature control accuracy of ≤±0.5°C, this water bath provides stable, uniform heating for clinical chemistry, immunology, microbiology, and molecular diagnostics workflows .
For the clinical laboratory scientist and medical technologist, the DWB20-S supports enzymatic assay preparation for liver function tests (ALT, AST), cardiac biomarkers (CK, LDH), and other enzyme-based diagnostic assays . It provides precise temperature control for ELISA and immunoassay incubation in infectious disease and autoimmune testing, sample thawing and reagent warming for coagulation studies (PT, PTT), and microbiological culture media warming for bacterial growth and antimicrobial susceptibility testing .
The DWB20-S features a corrosion-resistant stainless steel tank, microprocessor-controlled digital interface with PID temperature regulation, programmable timer (0-99 hours 59 minutes), and over-temperature protection for sample safety . The insulated lid minimizes heat loss and evaporation, while the drain valve facilitates easy water changes and tank cleaning .
For the patient undergoing diagnostic testing for myocardial infarction, hepatitis, autoimmune disorders, or bacterial infections, the DWB20-S’s precise temperature control ensures accurate enzymatic assay results, reliable immunoassay detection, and consistent culture-based identification—supporting appropriate treatment decisions and optimal clinical outcomes .
Description

Laboratory Water Bath (DWB20-S)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Temperature-Controlled Incubation for Clinical Chemistry and Immunology
  • Primary Use: Provides a digital laboratory water bath with a 20-liter capacity, designed for precise temperature-controlled incubation of clinical chemistry reagents, immunology samples, and diagnostic test preparations .
  • How it helps: For the clinical laboratory scientist and medical technologist, the DWB20-S ensures consistent, reproducible heating for ELISA assays, immunofluorescence, and serological testing—critical for accurate detection of antibodies, antigens, and infectious disease markers. For the patient undergoing diagnostic testing for autoimmune disorders, infectious diseases, or allergies, precise temperature control ensures reliable test results that guide appropriate treatment decisions.
2. Enzymatic Assay Preparation and Incubation
  • Primary Use: Supports enzymatic reaction incubation for clinical chemistry workflows including liver function tests (ALT, AST), cardiac biomarkers (CK, LDH), and other enzyme-based diagnostic assays .
  • How it helps: For the clinical chemist, the DWB20-S’s precise temperature stability (≤±0.5°C) ensures optimal reaction conditions for enzyme kinetics—improving assay accuracy and reducing inter-run variability. For the patient, consistent enzymatic assay results enable accurate diagnosis of myocardial infarction, hepatitis, and other conditions requiring enzyme level monitoring.
3. Sample Thawing and Reagent Warming
  • Primary Use: Used for controlled thawing of frozen clinical specimens (serum, plasma, urine) and gentle warming of reagents to operating temperature before diagnostic testing .
  • How it helps: For the phlebotomist and laboratory technician, the DWB20-S provides uniform, gentle warming that preserves sample integrity—preventing hemolysis, protein denaturation, and analyte degradation that can occur with rapid or uneven heating. For the patient, proper sample handling reduces the need for repeat specimen collection due to degraded samples, saving time and discomfort.
4. Microbiology Culture and Media Preparation
  • Primary Use: Maintains microbiological culture media at specified temperatures for bacterial growth, as well as warming culture media before inoculation in clinical microbiology workflows .
  • How it helps: For the clinical microbiologist, the DWB20-S’s stable temperature environment supports consistent bacterial growth conditions—improving the accuracy of culture-based identification and antimicrobial susceptibility testing. For the patient, reliable culture results enable appropriate antibiotic selection and treatment of bacterial infections such as sepsis, urinary tract infections, and pneumonia .

SECONDARY & SUPPORTIVE USES

1. ELISA and Immunoassay Incubation: Provides precise temperature control for enzyme-linked immunosorbent assay (ELISA) incubation steps in infectious disease and autoimmune testing.
2. Coagulation Testing Sample Warming: Used for warming plasma samples and reagents for PT (Prothrombin Time) and PTT (Partial Thromboplastin Time) coagulation studies.
3. Molecular Biology Sample Preparation: Supports gentle thawing of DNA/RNA samples and warming of reagents for PCR and sequencing workflows.
4. Histology and Pathology Tissue Processing: Used for warming embedding media and reagents in histology laboratory workflows.
5. Pharmaceutical Quality Control: Supports stability testing, dissolution testing, and sample preparation in pharmaceutical QC laboratories.
6. Cytology Sample Processing: Used for warming fixatives and processing solutions in cytology specimen preparation.
7. Endocrine Assay Sample Preparation: Supports temperature-controlled incubation for hormone assays including thyroid function tests and reproductive hormone panels.
8. Toxicology and Drug Monitoring: Used for warming samples and reagents in therapeutic drug monitoring and toxicology screening.
9. Research and Academic Laboratories: Provides reliable temperature control for general laboratory incubation needs in research settings.
10. Veterinary Diagnostic Laboratory: Supports clinical chemistry and microbiology workflows for animal health testing.
11. Food Safety and Environmental Testing: Used for media warming and incubation in food microbiology and environmental water quality testing.
12. Industrial Quality Control: Supports sample preparation and testing in industrial laboratory settings.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: A digital laboratory water bath with 20-liter capacity, designed for precise temperature-controlled incubation of clinical samples, reagents, and diagnostic test preparations .
  • Designation: DWB20-S Laboratory Water Bath, Digital Water Bath, 20L Water Bath, Clinical Laboratory Water Bath, DLAB DWB20-S, Constant Temperature Water Bath .
  • Key Components:
    • Stainless Steel Tank: Corrosion-resistant inner chamber for easy cleaning and durability .
    • Digital Control Panel: Microprocessor-controlled interface with temperature and timer settings .
    • Heating Elements: Immersion-style heating elements for uniform temperature distribution .
    • Insulated Chamber: Thermal insulation for temperature stability and energy efficiency .
    • Cover: Insulated lid with condensation control to minimize evaporation and heat loss .

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Capacity: 20 liters .
  • Temperature Range: Ambient +5°C to 99.9°C .
  • Temperature Control Accuracy: ≤±0.3°C – ≤±0.5°C .
  • Temperature Uniformity: ≤±0.5°C across the tank .
  • Heater Power: 1800W .
  • Display: Digital temperature and time display .
  • Timer Range: 0 – 99 hours 59 minutes .
  • Material: High-quality stainless steel tank; stainless steel or powder-coated exterior .
  • Dimensions (W × D × H): 500 × 300 × 200 mm (internal) .
  • Power Requirements: 100-240V, 50/60Hz .
  • Certification: CE certified .

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Construction: Corrosion-resistant stainless steel inner tank with durable exterior housing.
  • Control System: Microprocessor-controlled with PID temperature regulation for stable performance .
  • Operation Modes: Continuous operation with programmable timer; parameters can be adjusted during operation .
  • Safety Features: Over-temperature protection, low-liquid level detection (select models), safety cut-off .
  • Cleaning: Drain valve for easy water changes; smooth stainless steel surfaces for disinfection .
  • Portability: Benchtop design with 20L capacity suitable for clinical laboratory workflows.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Regulatory Status: Class I medical device for clinical diagnostic use; laboratory equipment classification.
  • Safety Certifications: CE certified .
  • Safety Features: Over-temperature protection system, low-liquid level cut-off (select models), insulated exterior, non-slip feet .
  • Electrical Safety: Dual-voltage capability (100-240V), grounded connection .
  • GLP Compliance: Timer and temperature display support GLP documentation .

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Place on clean, dry, level benchtop; ensure adequate clearance for ventilation and electrical connection.
  • Cleaning: Drain water bath through drain valve after use; clean tank with mild detergent; disinfect with 70% ethanol or appropriate disinfectant between sample types.
  • Inspection: Inspect water level before each use; inspect heating elements for scale buildup; descale as needed.
  • Maintenance: Replace water regularly; descale heating elements per manufacturer schedule.
  • Power Cord: Inspect power cord for damage before each use.

6. LABORATORY & CLINICAL APPLICATIONS

  • Primary Application: Temperature-controlled incubation for clinical chemistry, immunology, microbiology, and molecular diagnostics workflows in clinical diagnostic and research laboratories.
  • Clinical Role: Essential sample preparation and incubation equipment in clinical diagnostic laboratories, hospital laboratories, physician office laboratories, blood banks, microbiology labs, and research facilities .
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Proper Placement: Place on firm, flat, level surface; ensure adequate ventilation around the unit for Peltier cooling system heat dissipation.
  • Module Compatibility: Use only manufacturer-approved magnetic modules for specific tube formats to ensure proper thermal contact.
  • Temperature Verification: Allow unit to reach set temperature (4°C) before loading temperature-sensitive samples; verify LED status indicator shows stable (green) condition.
  • Cleaning: Clean spills immediately; disinfect cooling surface if biological materials are involved; do not immerse unit in water.
  • Load Limits: Do not exceed recommended sample volume per module; maintain proper thermal contact.
  • Electrical Safety: Use specified voltage (110V/220V, 50/60Hz); ensure power cord is not damaged.
  • Ventilation: Keep ventilation openings unobstructed to prevent overheating of cooling system.
  • Training: Only trained laboratory personnel should operate the CT4-Pro for clinical diagnostic applications.

2. FIRST AID MEASURES

  • Sample Spillage: If biological sample spills on cooling surface, disinfect area immediately with 70% ethanol or appropriate disinfectant.
  • Overheating: If unit becomes excessively hot, disconnect power, allow to cool, check ventilation, and restart.
  • Power Failure: If power fails, remove temperature-sensitive samples to refrigerator (4°C) or freezer as appropriate until power is restored.
  • Module Dislodgement: If magnetic module becomes dislodged during use, stop loading samples, reassess thermal contact, and reseat module properly.

3. FIRE FIGHTING MEASURES

  • Flammability: Plastic housing and electrical components may burn.
  • Extinguishing Media: Use carbon dioxide or dry chemical extinguisher for electrical fires.
  • Fire Response: Unplug unit immediately; do not use water on electrical fire.