MGS-250 Manual
14 6490-9000
Revision
4
As S
hi
ppe
d
Part number 6401-0501 (R22) is factory calibrated to R22 and
has an as-shipped R22 response accuracy of
r
5% of reading.
Cha
ng
e
d Ga
s Ty
pe
(Reduced Accu
ra
cy
)
The gas detector may be changed to respond to any of the
other listed refrigerants (see parameter P.-11, in section 5.2). If
changed, the gas detector will have a lower accuracy for the
target refrigerant (without calibration). In this example, that
accuracy is
r
16% of reading.
O
p
ti
o
n
al
Rec
ali
b
ra
ti
o
n
(For Imp
roved A
ccu
ra
cy
)
By applying calibration gas containing the
new
target
refrigerant, and via the routine described in Section 6.4, the gas
detector may then be adjusted to respond with the calibrated
accuracy of
r
5% of reading as shown in Table 2 for the new
target refrigerant.
Figure 4. Changing Gas Types and Accuracy
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