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General| Brand | Hirschmann Laborgeräte |
|---|---|
| Model | ceramus-classic |
| Category | Dispenser |
| Language | English |
Adhere to general lab safety, wear protective clothing, safety glasses, and gloves for chemical handling.
Follow manufacturer guidelines, observe prohibitions and restrictions on use, and check connections before operation.
Prevent hazards to personnel, avoid splashing, never use force, and secure the unit after use.
Cool down after sterilization, use genuine parts, and be aware of maintenance safety protocols.
Attach the suction tube to the dispenser and cut to the correct length for the bottle.
Mount the ejection unit onto the dispenser and ensure it is securely fitted with the union nut.
Screw the prepared dispenser onto the reagent bottle, using appropriate adapters if needed.
Prepare for dispensing by removing the closure cap from the ejection unit, using a collection vessel.
Remove air bubbles from the dispenser by repeatedly operating the piston and checking the observation window.
Set the desired dispensing volume by rotating the scale ring until the mark aligns with the arrow.
Dispense the set volume by gently pulling up and pushing down the piston, avoiding force.
After dispensing, leave the piston down and lock the mechanism by setting the scale ring to zero.
Prepare for cleaning, set scale to zero, close cap, place unit in container.
Set dispenser to max volume, unscrew from bottle, and return remaining liquid.
Rinse unit with cleaning solutions, then remove suction tube and ejection unit for thorough cleaning.
Remove the piston by setting the volume, pulling, and unscrewing the knob to facilitate thorough cleaning.
Clean cylinder and piston, then carefully reassemble the piston into the cylinder with a smooth rotating motion.
Clean the unit, remove the piston, and loosen the suction/ejection valves before sterilization.
Detailed steps for removing the piston by setting volume, pulling, and unscrewing the knob.
Loosen the suction and ejection valves using the assembly wrench counterclockwise.
Autoclave all parts at 121°C, 2 bar for 20 minutes, then cool and check for damage.
Reassemble the unit by inserting the piston, tightening valves, and checking overall function.
Replace the suction valve by unscrewing the suction tube, removing the old valve and ball, and installing the new one.
Replace the ejection valve by unscrewing the ejection unit and removing/installing the valve with the assembly wrench.
Set nominal volume, dispense de-ionized water, weigh, and convert to volume, considering environmental factors.
Repeat the measuring procedure at least 5 times and calculate accuracy and coefficient of variation.
Resolve issues with stiff pistons by removing caps, intensive cleaning, or soaking.
Troubleshoot impossible suction/dispensing by checking volume settings, cleaning, or changing valves.
Fix leaks from valve blocks or units by tightening valves or checking connections.
Resolve air aspiration issues by priming the unit, tightening tubes, or replacing parts.
Address incorrect delivered volumes by ensuring correct mounting, tube tightness, and valve function.
Details dispenser volume ranges, accuracy (R%), and coefficient of variation (CV%) under specified conditions.
Information on conformity certification and the recommended operating temperature range for the unit and liquids.
Lists the materials used for key dispenser components like the piston, cylinder, and valve parts.
