K41091 Micro Carbon Residue and Ash Tester
Operation and Instruction Manual
K41091-Manual
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11-
parameters and configuration of the
instrument. It is highly recommended to
print this logbook before and after each
and every change made by the user to the
instrument. This makes it possible to track
calibrations,
parameter
and
other
configuration values which may have been
modified inadvertently.
6. Date/Time Function.
This function allows the
user to setup the date and time of the
instrument.
WARNING:
If the instrument is left off for a period
of three weeks, the date and time will reset. In this
event, it is required to use this function to re-enter
date and time values for reporting purposes.
6 Maintenance
WARNING.
Disconnect power to the unit before
servicing to avoid exposure to high voltages
and/or temperatures which may result in personal
injury or death. If you have any questions about
maintaining your equipment, then please do not
hesitate to contact the Koehler technical service
department.
The K41091 requires little routine maintenance to
provide many years of continuous service.
However, over the course of time, some
instrument parts may need to be replaced. When
ordering replacement part(s), please provide the
model number, serial number, and product
shipment date of your equipment so that we can
ensure you will receive the proper replacement
part(s).
6.1 Maintenance Checks
1.
Before each test it is recommended to check
the Furnace and Condensate Tank for
Clogging and Overflow. The handling of these
condensates or residues requires much
precaution. These residues are very toxic and
require the user to wear Personal Protective
Equipment (PPE) when handling.
2.
Before each test it is recommended to check
the furnace exhaust. The exhaust must be
free from calamine. If the apparatus has
calamine deposits in the furnace exhaust, it is
recommended to remove the deposits using
the cleaning cable provided.
6.2 Routine Maintenance
Depending on the frequency of use and the type of
samples being tested, it is recommended to
perform routine maintenance procedures. For
example, an Ash Test would reduce the amount of
deposits formed in the furnace but would generate
many condensates. With Ash Testing, it is then
necessary to frequently monitor the condensate
tank as well as the furnace exhaust.
6.2.1 Cleaning of Furnace Opening and Hot Lid
The top opening of the Furnace seals by means of
the metal-metal contact between the furnace and
the hot lid. Therefore, it is critical to check that the
lid is free from any shock or impact damage. Also,
ensure both the hot lid and the furnace opening
rim is free from any calamine deposits.
Use steel wool to clean the hot lid and furnace
opening of all deposits. Take careful attention not
to damage the metal.
Do not use an abrasive
cloth or other material when cleaning.
NOTE:
Each furnace and hot lid are manufactured
and factory test together to ensure proper sealing
of the furnace. They are both assigned an identical
given number. See Figure 10 below: Before
testing, make sure the lid and furnace have
matching numbers.
Figure 10: Hot Plate ID Number
6.2.2 De-Carbonizing the Furnace
The exit at the bottom of the furnace is a major
point of calamine deposition and accumulation. It
is recommended to cleaning this area regularly
using the cleaning cable provided. See Cleaning
Steps below:
When the Furnace is off and at room
temperature, remove the condensate tank.
Remove the insulating lid, then the hot lid.
Insert the cleaning cable through the top of
the furnace and into the bottom exit. See
Figure 11 below:
Summary of Contents for K41091
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