0019-9376
Revision 0
42
Monoxor
®
XR User Manual
4.6 Ending a Test
WARNING:
Burn Hazard. Do not touch the probe after removing it from a flue.
Allow the probe to cool before handling
(about 5 minutes)
.
After taking a gas sample, remove the probe and take the analyzer to an area containing
fresh air. Allow the pump to run until the CO reading drops to near zero.
4.7
Differential Temperature Measurement
In certain combustion applications, it may be desirable to have a differential temperature
measurement. Use the Diff Temp menu and either the optional probe assembly with
thermocouple
(P/N 0019-7111)
, or one of the optional K-Type thermocouples (
P/N 0104-1798
or P/N 0104-1797)
to accomplish this task.
The Monoxor
®
XR calculates the differential temperature based on two sampled
temperatures (T1 and T2) which it reads from the optional probe assembly’s thermocouple
(which is connected to the T-STACK connector of the instrument). After you take the two
sample readings, the differential value (T1-T2) is calculated, optionally saved in memory,
displayed on the main run screen, and is shown on printouts. Use the following procedure
to perform a differential temperature measurement.
Example Procedure for Taking Differential Temperature Measurements
1. Attach the thermocouple plug of the optional probe assembly to the T-STACK connector
on the bottom of the Monoxor
®
XR.
From the Main Menu, select the Diff Temp option. When this option is first selected, the
current temperature
(Temp)
is displayed. Values for T1 and T2 will show no readings until
they are saved by the operator, after which a differential value (T1-T2) will also be displayed.
Figure 4-6:
Diff Temp Menu
2. With T1 highlighted, position the probe at desired location #1.
3. After a T1 temperature reading is displayed and stabilizes, press the F3
(SAVE)
button to
store the current T1 temperature reading. The T2 temperature reading is highlighted.
4. Move the probe to desired location #2.
