RKI Instruments Eagle 1 Manual - Manual (Page 78)

71 • Appendix E: Infrared Methane Sensors Eagle Instruction Manual
case. It is connected to the EC4 socket on the analog PCB.
4. Adjust the sensor’s SPAN control one turn and observe the
display reading. Continue to adjust the SPAN control until the
display reading matches the concentration of the calibration
cylinder.
The SPAN control is on the top edge of the amplifier and is the
control closest to the front of the instrument.
5. Place the top of the case in its original position, then secure it with
the large screws you loosened in step 5.
6. Continue with the normal calibration procedure.
Replacing Infrared Methane Sensors
Return the Eagle to RKI Instruments, Inc. for replacement of the
infrared methane sensor when:
• The infrared methane channel cannot be calibrated correctly.
• The infrared methane reading cannot be set to zero by the Demand
Zero command.
Parts List
Table 15 lists part numbers for accessories needed to calibrate the
Eagle’s infrared 100% volume methane sensor.
Table 15: Parts List: Infrared Methane Sensors
Part Number Description
81-0015RK-01 Calibration cylinder, 34-liter (50% volume CH
4
)
81-1001RK Dispensing valve (for 34-liter calibration cylinders)
81-1126RK Calibration sample bag, tedlar (9 in. x 9 in.)
81-1127RK Calibration sample bag, tedlar (12 in. x 12 in.)