The bottle-top dispenser is a frequently used experiment tool and the right operation will make the experiment result more accurate and effective.
1.Preparation before use
Prepare protective clothing, eye protection, and gloves. When touching the dispenser or bottle, especially dangerous and corrosive liquids in it, always wear protective gloves. The adapters are made of polypropylene (PP), so it can only be applied for media that do not attack PP. Before use, read through the User Manual and especially the Operating Exclusions and Limitations.
Prepare protective clothing, eye protection, and gloves. When touching the dispenser or bottle, especially dangerous and corrosive liquids in it, always wear protective gloves. The adapters are made of polypropylene (PP), so it can only be applied for media that do not attack PP. Before use, read through the User Manual and especially the Operating Exclusions and Limitations.
2.The discharge tube connection
Firstly, push the discharge tube as far as possible into the discharge valve. And then tighten the locking nut by finger to ensure a tight fit. Please note that do not use any other type of discharge tube or deformed ones.
Firstly, push the discharge tube as far as possible into the discharge valve. And then tighten the locking nut by finger to ensure a tight fit. Please note that do not use any other type of discharge tube or deformed ones.
3.The filling tube connection
The filling volume of Hawach bottle-top dispenser ranges from 0.1ml to 99.9ml. For bottle-top dispensers 0-25 ml and 0-50 ml, the filling tube can be connected. Then, cut off filling tube diagonal and push the filling tube into the valve block as far as possible-with the diagonal end down.
The filling volume of Hawach bottle-top dispenser ranges from 0.1ml to 99.9ml. For bottle-top dispensers 0-25 ml and 0-50 ml, the filling tube can be connected. Then, cut off filling tube diagonal and push the filling tube into the valve block as far as possible-with the diagonal end down.
4.The mounting dispenser on the bottle
The bottle-top dispenser can be screwed directly onto a 45 mm screwthread. For other bottles, use the accompanying adapters.
The bottle-top dispenser can be screwed directly onto a 45 mm screwthread. For other bottles, use the accompanying adapters.
5.Priming the bottle-top dispenser
Please note the small bottles require a bottle stand to prevent tipping over. The discharge tube and closure cap may be dropped off by reagent, so operators should hold the discharge tube and carefully remove the closure cap. Then, slide the closure cap backwards on the tube support, away from the discharge tube opening.
Please note the small bottles require a bottle stand to prevent tipping over. The discharge tube and closure cap may be dropped off by reagent, so operators should hold the discharge tube and carefully remove the closure cap. Then, slide the closure cap backwards on the tube support, away from the discharge tube opening.
When priming holds a discharge tube on the inner wall of a suitable recipient, operators should avoid splashes. Gently pull the piston up (1 to 2 cm), then press it down rapidly. Repeat this procedure to remove most of the air bubbles. Pay particular attention to critical areas where bubbles may lodge. Before the first use of the bottle-top dispenser, please ensure it is rinsed carefully or discard the first few samples dispensed.
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