RKI Instruments Beacon 200 RIg Monitor, H2S/H2S - Manual (Page 38)

33 • Beacon 200 Rig Monitor Operator’s Manual
NOTE: The following procedure assumes that the target gas is present in
a high enough concentration to affect the fresh air (zero) reading.
If a fresh air environment can be verified, applying zero air to the
detector is not necessary when setting the zero reading.
This section describes how to calibrate the H
2
S detectors. It includes
procedures to prepare for calibration, set the fresh air reading, set the span
reading, and return to normal operation. It describes calibration using a
calibration kit that includes calibration gas, sample tubing, and a fixed flow
regulator with an on/off knob. RKI Instruments, Inc. recommends using a
0.5 LPM (liters per minute) fixed flow regulator. The calibration cup/splash
guard is part of the detector assembly in the Rig Monitor.
Preparing for Calibration
1. Simultaneously press and hold the ENTER and UP/YES buttons for
approximately 5 seconds to enter the Calibration Program. Release the
buttons when the CALIBRATION PROGRAM... message displays and
asks if you want to continue or return to normal operation.
Select Cal. Gas
Concentration
for Channel 2
Calibrate
Channel 1 Y/N?
Calibration
Timeout
Selection
ENTER Normal
Operation
Apply Gas to
Ch. 1 & Ch. 2
Detectors
Air Adjust
Channel 2
(If Installed)
Press Enter to
Adjust Span
Span
Channel 2 Y/N?
(If Installed)
Select Cal. Gas
Concentration
for Channel 1
Air Adjust
Channel 1
Calibration
Program Enter
ENTER/ESCAPE
ESCAPE
Calibrate
Channel 2 Y/N?
(If Installed)
Span
Channel 1 Y/N?
Figure 11. Calibration Flow Chart