Maintenance And Repair Of The Thermal Cycler; Cleaning, Maintenance And Repair Of The Thermal Cycler; Temperature Check-Up; Calibration - VWR Peqlab Primus 25 advanced Instruction Manual

Instruction manual Primus 25 advanced®

9 MAINTENANCE AND REPAIR OF THE THERMAL CYCLER

9.1 Cleaning, maintenance and repair of the thermal cycler

For safety reasons the device must be switched off and the mains plug pulled before cleaning is carried
out!
The surface of the thermal cycler can be wiped off with a damp cloth or ethanol. Do not use aggressive
or scouring cleaners or organic solvents for cleaning. The device should be protected from aggressive
chemicals. Make sure that no liquid penetrates into the interior of the device.
If sample liquids penetrates into the drill holes of the thermal cycler clean them immediately with mild
soap followed by distilled water. You can use mild disinfectants for decontamination.
Maintenance (temperature check-up see 9.2) should be carried out regularly to detect possible technical
failures.
The electric fuses are placed at the back of the device between the power switch and the mains plug.
After pulling off the mains plug and pushing upwards a safety catch the fuses can be changed. Use only
fuses with correct values (indications about the fuse type are placed at the back of the device).
The device may only be opened by a qualified specialist. Unauthorized work on the device voids the
warranty. All kinds of repairs may only be carried out by authorized persons using original replacement
parts. The replacement of single components of the device should not be done by the user but exclu-
sively by authorized specialists. Therefore the device must be sent to the manufacturer. The surface of the
device should be decontaminated with a lint free cloth soaked with 70 % ethanol before sending. The
drill holes of the thermoblock shall be cleaned with a 1.5 % hypochloride solution with the help of a
cotton bud. Please fill in and sign the decontamination certificate and send it to the manufacturer to-
gether with the device.

9.2 Temperature check-up

Maintenance of the temperature at regular intervals (e.g. biannual) is recommended. The thermometer
for use should be equipped with wired sensing devices (e.g. Pt1000) and should have an accuracy of
measurements of 1/10 class B (ΔT = ±0.03°C) in the range of 0 to 100°C.
While processing the temperature control the room temperature should be 25°C at maximum. Three
different measurements at the right and left border and in the middle of the thermal plate should be car-
ried out in tubes filled with glycerine.

9.3 Calibration

If there is a reasonable suspicion that the device has deviated from the calibration range, because the
variations of the temperature check-up are considerably out of the acceptable tolerance, a new calibra-
tion must be carried out by the manufacturer. Please contact your local distributor.

10 WARRANTY

The period of warranty for the product at hand is 24 month from date of purchase. The warranty does
not apply for defects caused by incorrect, improper or inappropriate use. The customer has to check up
on obvious defects promptly upon receipt of the device and send a written report. Otherwise the claim
for warranty expires. The manufacturer reserves the right to carry out changes to the thermal cycler or to
the technical documentation of the thermal cycler on the basis of product development or improvement
without prior notice.
PEQLAB_v0314_E
10