Gilson dispensman, Руководство пользователя

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DISPENSMAN ®
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USER’S GUIDE
Chapter 8
TROUBLESHOOTING
Valve Sticks
With the dispensing unit screwed on, ensure that the valves are surrounded by
liquid and that the valve system is easy to move by rinsing it with distilled water
and/or laboratory cleaning agent. As a last step, rinse with alcohol.
Piston Difficult to Move
Check whether crystals have formed, and if so, carry out intensive cleaning of the
piston and the cylinder (refer to Chapter 5 MAINTENANCE , page 11).
No Liquid Dispensed
• Check that the nozzle switch is set to “Dispense” (0°).
• Check the suction valve and then clean it, if necessary.
• Check the nozzle switch. If it is not clean and operational, clean unit by
immersing nozzle set in cleaning fluid.
• Check the discharge tube. If it is not clean and operational, disassemble it,
and then flush it with cleaning fluid.
No Liquid Aspirated
• Check the fit of the telescopic tube into the suction valve. It should be firmly
pressed into the smaller hole of the bottom part of the valve block (please
refer to figure 6, page 8).
• Check the volume setting.
• Check the suction valve and then clean it, if necessary.
Air Bubbles in Aspirated Liquid
• Check whether all air has been removed from the instrument, (See Chapter 4
OPERATION , page 9).
• Check that the reservoir is not empty.
• Check the telescopic tube, if necessary slide it to shorten it or replace it in its
socket.
• Ensure slow, steady aspiration of reagent.
• Check the suction valve and then clean it, if necessary.
Incorrect Volume Dispensed
Calibrate the instrument (See Chapter 7 CALIBRATION , page 13).
If any problem persists, please return DISPENSMAN back to your local Gilson
service center.
Return for Repair
Please clean the instrument carefully, as described in Chapter 6
CLEANING & STERILIZATION , page 12. Never send in instruments
filled with reagents. Returned instruments can only be
checked and repaired if they have been carefully cleaned and
decontaminated by the customer.
Forced opening of the instrument invalidates any warranty claim. Enclose with
the returned instrument a description of the trouble that has occurred and
specify which reagents were used.
Chapter 9
SPECIFICATIONS
DISPENSMAN is a high quality dispenser that offers excellent accuracy and
precision; it is fully compliant with ISO 8655.
Each dispenser is inspected and validated by qualified technicians. Gilson
declares that its manufactured dispensers comply with the requirements of the
ISO 8655 standard, by type testing. The adjustment is carried out under strictly
defined and monitored conditions.
MODEL
PART
NUMBER
VOLUME RANGE
SCALING
(mL)
MAXIMUM PERMISSIBLE ERRORS
GILSON ISO 8655-5
SYSTEMATIC
ERROR (mL)
RANDOM
ERROR (mL)
SYSTEMATIC
ERROR (mL)
RANDOM
ERROR (mL)
DISPENSMAN 2.5 mL F110101 0.25 – 2.5 mL 0.05 ±0.012 ≤ 0.002 ±0.030 ≤ 0.010
DISPENSMAN 5.0 mL F110102 0.5 – 5 mL 0.10 ±0.030 ≤ 0.005 ±0.030 ≤ 0.010
DISPENSMAN 10 mL F110103 1 – 10 mL 0.20 ±0.060 ≤ 0.010 ±0.060 ≤ 0.020
DISPENSMAN 25 mL F110104 2.5 – 25 mL 0.50 ±0.150 ≤ 0.025 ±0.150 ≤ 0.050
DISPENSMAN 50 mL F110105 5 – 50 mL 1.00 ±0.300 ≤ 0.050 ±0.300 ≤ 0.100
Noise During Aspiration and Dispensing
Noise while aspirating or dispensing is acceptable as it is because of the high quality
suction valve with valve ball.
SPECIFICA
TIONS
NOTICE
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