Emerson MRLDS-250 - Detecting Specific Gases

Detection Options Introduction • 3
1.2.3. Detecting Specific Gases
Each gas-specific gas detector is shipped factory calibrated to its specific target refrigerant. Refer to Figure 1-3
and Table 1-2.
Table 1-2 Gas-specific Detector Measurement Performance
Part Number
Refrigerant
1
Accuracy
809-0031 R22 ±5%
809-0034 R404a ±5%
809-0035 R407a ±3%
809-0040 R422d ±5%
809-0041 R448A ±5%
809-0042 R449A ±5%
809-0043 R513A ±5%
809-0044 R507 ±5%
1
See Section 5, Configure the Gas Detector for Information on Parameter 11 and other configuration
instructions.
Figure 1-3 - Gas-Specific MRLDS-250 Gas Detectors
NOTE: Emerson recommends not 
re-calibrating gas-specific detectors in
the field to a new target gas; purchase a
new gas-specific detector instead. In the
event you prefer not to purchase a new
gas-specific detector, use optional
calibration instructions in Chapter 6 for increased
accuracy when detecting a new target that is different
from the “as shipped” target gas. Refer to the example
in Table 1-3.