S
S
S
S
S
ECTION
ECTION
ECTION
ECTION
ECTION
5
5
5
5
5
M
AINTENANCE
AND
C
ALIBRATION
P
ROCEDURES
5-50 O
PERATING
G
UIDE
, TEOM 1405
T
HERMO
F
ISHER
S
CIENTIFIC
The calibration of the mass transducer in the TEOM 1405 Monitor is
determined by the mass transducer’s physical mechanical properties. Under
normal circumstances, the calibration does not change materially over the
life of the instrument. Contact Thermo Scientific if the results of the
verification procedure fails. You can locate the original calibration constant
on the “Instrument Checkout Record” or the “Final Test Record”
documents that are shipped from the factory with the instrument.
Before the TEOM 1405 is shipped to the customer, it is calibrated with a
new, pre-weighed TEOM filter installed in its mass transducer as a
calibration weight. Because the mass of the filter cartridge with particulate
matter differs from the mass of a new filter cartridge by only a small
fraction, calibrating the system with a calibration mass equivalent to the
filter mass allows all measurements to be made at essentially the same
operating point as the original calibration. Refer to Section 1 for a detailed
explanation of how the calibration constant, K
0
, is derived.
To audit/verify the K0 number requires a mass calibration verification kit
(59-002107), which includes a pre-weighed filter, a filter exchange tool,
desiccant and a humidity indicator) and the pre-filter with a half-inch
quick-connect fitting supplied with the instrument.
Note.
Note.
Note.
Note.
Note. Refill kits for the mass calibration verification kit are available from
Thermo Scientific (59-002019).
▲
V
V
V
V
Verifying the
erifying the
erifying the
erifying the
erifying the
Calibration Constant
Calibration Constant
Calibration Constant
Calibration Constant
Calibration Constant
Содержание TEOM 1405
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