KEEWELL FT1800 User manual

Blood and Infusion Warmer
FT1800
Operator’s Manual
( E di t io n : 06/ 2 0 2 2 /En)
K E E W E L L ME D IC A L T E C H N O L O G Y C O . , LT D

IMPORTANT:
•These instructions are an essential part of the device.
•They must be kept in a suitable place near the device and should accompany the device if it is
transferred to other users.
•For proper and safe use of this device it is essential that the warnings and safety instructions, as
well as the instructions for use are read and carefully observed by all users before first using
the device.
•It is the responsibility of those using the device to fully acquaint themselves with its proper use
and operation.
•If a malfunction is suspected, the device is to be taken out of service immediately and sent to
the supplier for examine and repair.

CONTENT
Description ................................................ 1
Contraindication ........................................ 5
Warnings.................................................... 6
Safety instructions ..................................... 8
Appearance and control panel ................... 9
Safety characteristics............................... 13
Installation and operation procedure ....... 19
Maintenance ............................................ 27
Periodic inspections................................. 28
Trouble shooting...................................... 30
Manufacturer’s declaration...................... 33
EMC declaration...................................... 34
Symbols ................................................... 41
Technical data.......................................... 44
Operating and storage conditions ............ 46
Manufacturer liability.............................. 47
Warranty conditions................................. 48

Operator’s Manual FT1800 KEEWELL
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DESCRIPTION
•The Blood and Infusion Warmer FT1800 can be used in all applications in which
hypothermia of the patient through cold transfusions and infusion solutions is to be
prevented. It is consisted of the main body, flexible warming profile, fastening unit and
power cable. During the operation, the infusion tube is inserted into the warming profile.
The intelligent micro-computer processing control system works automatically to heat up
the profiles homogeneously and continually adjusts heating state. At the same time, the
heat is transferred into the flowing liquid in the tubing placed in the profile, to rise the
temperature of the liquid. It is equipped with double independent temperature protection
systems to ensure the safety of use.
•The temperature of warming profile can be set between 33°C and 41°C in steps of 0.1°C
and is displayed on the LED screen. The device can memorize the last set temperature
automatically.
•The alarm and self-test functions for over-temperature and under-temperature
incorporated into the device assures safe operation.
•A standard infusion tubing (3.5-5.0mm in O.D and 1.4m in length) may be used in

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conjunction with the FT1800.
•The temperature shown in the display corresponds to the temperature of the warming
profile.
•The temperature of the fluid to be heated that is reached at the end of the warming section
depends on various factors, such as, the fluid's input temperature, the flow rate, the set
temperature，the ambient temperature, etc.
•The following graph shows a typical initial temperature curve
(Initial temperature Fluid and ambient temperature: 20°C)
infusion rate（ml/min）
1
5
10
15
20
25
output temp （℃）
41
37.6
35.3
33.3
32
30.7

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Fig. 1: Typical starting temperature of the fluid that has passed through at different flow rates

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Applied part
The warming profile which is applied part of the medical device is type "BF". The electrical
conductors in the warming profile have been insulated from the other parts of the medical
device to such a degree that no current higher than the allowable PATIENT LEAKAGE
CURRENT flows if an unintended voltage originating from an external source is connected to
the PATIENT, and thereby applied between the PATIENT CONNECTION and earth.
The warming profile is defibrillation-protected and supplied with safety extra-low voltage.