DispensMate Bottle-Top Dispenser
Variable-volume bottle-top dispenser offering 0.5-50 mL dispensing ranges with precision graduation increments for accurate reagent delivery directly from laboratory bottles.
| Automation Level | manual |
| Graduation | A≤± |
| 0.5~5ml | 0.1ml |
| 0.5% | 250μl |
| 0.1% | 50μl |
| 1.0~10ml | 0.2ml |
The DispensMate Bottle-Top Dispenser is a precision liquid handling instrument designed for accurate, reproducible dispensing of reagents and solvents in laboratory environments. This variable-volume dispenser features multiple volume ranges from 0.5-5 mL to 5-50 mL, with graduation increments optimized for each range to ensure measurement accuracy within ±0.1-1.0% depending on volume dispensed.
The system accommodates standard laboratory bottles through interchangeable adapters (S40 45/40mm and GL32 45/32mm), enabling direct dispensing from reagent bottles without transfer steps. Multiple catalog configurations provide researchers with volume ranges appropriate for microanalytical work (0.5-5 mL) through preparative applications (5-50 mL), with graduation increments scaled to maintain precision across the operating range.
How It Works
The DispensMate operates on a positive displacement principle, utilizing a precision-machined piston mechanism to deliver accurate liquid volumes. The dispenser body contains a calibrated cylinder and piston assembly that draws liquid from the source bottle through the dip tube on the downstroke, then expels the measured volume through the discharge tip on the upstroke.
Volume selection is achieved through a graduated adjustment mechanism that controls piston travel distance, directly correlating to dispensed volume. The system maintains accuracy through mechanical stops and precision-ground surfaces that eliminate dead volume and ensure reproducible piston positioning. Chemical compatibility is maintained through PTFE and borosilicate glass contact surfaces that resist corrosion from organic solvents and aqueous solutions.
Features & Benefits
Automation Level
- manual
Graduation
- A≤±
0.5~5ml
- 0.1ml
0.5%
- 250μl
0.1%
- 50μl
1.0~10ml
- 0.2ml
2.5~25ml
- 0.5ml
5.0~50ml
- 1.0ml
Cat. No.
- Volume Range
7032100101
- 0.5~5ml
7032100102
- 1~10ml
7032100103
- 2.5~25ml
7032200104
- 5~50ml
17000069
- S40, Adapter, 45/40mm
17000817
- GL32, Adapter, 45/32mm
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Environmental Monitoring
- Microbiology
- Pharmaceutical QC
Weight
- 29.98 kg
Dimensions
- L: 42.0 mm
- W: 43.6 mm
- H: 38.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Volume Range Coverage | Four models spanning 0.5-50 mL with optimized graduation increments | Many dispensers offer single volume ranges or fewer model options | Allows researchers to select precision appropriate for their specific application scale without over- or under-ranging. |
| Bottle Adapter Compatibility | Dual adapter system for S40 (45/40mm) and GL32 (45/32mm) threading | Single thread compatibility or proprietary bottle requirements | Provides universal compatibility with standard laboratory reagent bottles without inventory restrictions. |
| Graduation Precision | Volume-scaled increments from 0.1 mL to 1.0 mL depending on range | Fixed increment systems across all volume ranges | Maintains appropriate measurement resolution for both microanalytical and preparative applications. |
| Accuracy Specifications | ±0.1% at 50 μL, ±0.5% at 250 μL according to product specifications | Accuracy varies widely among models and manufacturers | Documented precision enables confidence in quantitative analytical procedures requiring traceable measurements. |
The DispensMate series provides comprehensive volume range coverage with precision-scaled graduations and universal bottle compatibility. The positive displacement mechanism delivers consistent accuracy across diverse liquid types while maintaining direct reagent bottle integration.
Practical Tips
Perform gravimetric verification monthly using analytical balance and distilled water at room temperature.
Why: Regular verification ensures dispensing accuracy remains within specifications for quantitative work.
Rinse internal mechanism with appropriate solvent when switching between incompatible reagents.
Why: Prevents chemical reactions or precipitation that could affect accuracy or damage internal components.
Allow complete piston travel in both directions and maintain consistent operating speed for optimal accuracy.
Why: Incomplete strokes or rapid operation can introduce air bubbles and volume inconsistencies.
If dispensed volumes become inconsistent, check for air bubbles in dip tube and re-prime system thoroughly.
Why: Air in the liquid path compresses during operation, leading to variable volume delivery.
Record dispenser model and volume setting in laboratory notebooks for experimental reproducibility.
Why: Documentation enables method transfer and supports data integrity requirements in regulated environments.
Ensure bottle is stable and dispenser is securely attached before operation to prevent spillage.
Why: Loose connections or unstable setups can cause reagent loss and potential exposure risks.
Store with dip tube in clean solvent or remove from bottle when not in regular use.
Why: Prevents reagent crystallization or contamination buildup that could affect subsequent dispensing accuracy.
Setup Guide
What’s in the Box
- DispensMate dispenser body (typical)
- Dip tube assembly (typical)
- Bottle adapter set (S40 and GL32) (typical)
- User manual and calibration guidance (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship. Technical support includes calibration guidance and troubleshooting assistance for optimal performance maintenance.
Compliance
What accuracy can I expect across the different volume ranges?
Accuracy varies by dispensed volume: ±0.1% at 50 μL and ±0.5% at 250 μL according to specifications. Larger volume ranges maintain proportional accuracy through scaled graduation increments.
Which solvents and reagents are compatible with the dispenser materials?
PTFE and borosilicate glass contact surfaces provide compatibility with most organic solvents and aqueous solutions. Consult chemical compatibility charts for specific aggressive reagents or extreme pH conditions.
How do I maintain calibration accuracy over time?
Regular gravimetric verification using analytical balance is recommended. Clean internal mechanisms periodically and replace seals if dispensing accuracy degrades beyond specifications.
Can I use this dispenser with viscous solutions or suspensions?
The positive displacement mechanism handles viscous liquids better than air displacement pipettes, though extremely thick solutions may require slower operation for complete filling.
What's the difference between the catalog numbers for volume selection?
Each catalog number corresponds to a specific volume range: 7032100101 (0.5-5mL), 7032100102 (1-10mL), 7032100103 (2.5-25mL), and 7032200104 (5-50mL) with appropriately scaled graduations.
How does this compare to traditional graduated pipettes for routine dispensing?
Offers superior reproducibility and reduced operator fatigue for repetitive dispensing tasks, while maintaining direct bottle connection that eliminates transfer contamination risks.
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