RKI Instruments Eagle Series User Manual
Page 53
48 • Calibration
Diffusion Eagle Instruction Manual
3. To adjust the values on the screen, hold down the SHIFT/
▼
button, and
press the DISP/ADJ button. The Auto Calibration screen for the
combustible gas channel displays.
4. Use the AIR/
▲
(increase) and SHIFT/
▼
(decrease) buttons to set the
correct combustible gas value.
5. Press the POWER/ENTER button to enter the new setting. The Auto
Calibration screen for the next channel displays.
6. Repeat steps 4 and 5 to set the correct values for the remaining channels
and return to the Calibration Values screen.
NOTE: The RKI Four Gas Cylinder contains approximately 12% O
2
by
volume. Be sure to set the “OXY” reading to agree with the
concentration listed on the cylinder’s label, not zero.
7. With the Calibration Values screen displayed, press the
POWER/ENTER button. The gas readings flash.
8. With the Eagle and Remote Detector properly set up for calibration (see
“Preparing for Calibration” on page 46), screw the fixed-flow regulator to
the calibration cylinder to begin a flow of gas at 1.0 liters per minute. The
gas starts to flow a soon as you screw on the fixed-flow regulator. (A
fixed-flow regulator with an on/off valve is also available.) Let the gas
flow for 90 seconds.
9. Press the POWER/ENTER button to set the calibration to the
programmed values.
If a sensor(s) cannot calibrate to the proper value, FAIL PUSH AIR/
▲
KEY displays and the Eagle lists the sensor(s) that failed to calibrate.
(The other sensors calibrate normally.) The buzzer and alarm lights
activate. Press the AIR/
▲
/
▼
button to reset the alarm and return to the
Calibration menu. Replace the failed sensor(s), then repeat calibration.
10. AUTO CALIBRATION END displays, then the Calibration menu
displays.
11. Unscrew the regulator from the cylinder and remove the calibration cup
from the Remote Detector. Then remove the clear tubing from the
regulator and from the calibration cup.
C H
4
O
Y
C O
H
2
S
X
1 2
.
0
0
0
0
.
5
L
V
P
P
P
P
M
M
E
O
L
L
%
%
C
A
L
.
5
2
5