Table 1-3 Changing Gas Types and Accuracy
As Shipped
Part number 809-0031 (R22)
is factory calibrated to R22.
Changed Gas
Type
(Reduced
Accuracy)
The gas detector may be
changed to respond to any of
the other listed refrigerants
(see parameter P.-11, in
Section 5.2., Setting
Parameters). If changed, the
gas detector will have a lower
accuracy for the target
refrigerant (without
calibration).
Optional
Recalibration
(For
Improved
Accuracy)
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 as shown
in Table 1-2 for the new target
refrigerant.
4 • MRLDS-250 Infrared Gas Detector I&O Manual 026-1315 Rev 4
1.3. Remote Controller
Options
The MRLDS-250 can connect to any controller
through the standard analog output (voltage and
current; see Table 1-4 for options), the standard alarm
relay, or the digital Modbus RTU communications
interface.
1.4. Parts List
Table 1-4 shows a list of components that are
available.
Table 1-4 Parts List
Part
Number
Description
809-0030 MRLDS, Broadband
809-0031 MRLDS, Calibrated to R22
809-0034 MRLDS, Calibrated to R404A
809-0035 MRLDS, Calibrated to R407A
809-0040 MRLDS, Calibrated to R422D
809-0041 MRLDS, Calibrated to R448A
809-0042 MRLDS, Calibrated to R449A
809-0043 MRLDS, Calibrated to R513A
809-0044 MRLDS, Calibrated to R507
603-1100 Splash Guard
026-1315 Installation and Operation
Manual