Quick-Check PowerSaver Manifold 10 & 20 Port South-Tek
Systems
Revision: 0
Revision Date: 8/30/17
Page 15 of 29
Figure 7: Main Menu Screen
5.4
MENU SCREEN
The “Main Menu” screen (accessed from home
screen), is password protected. Please consult the
second page under “Revision History” of the
provided hard-copy manual for the user password.
Once access is granted to the “Main Menu”, the user
can access all but the “System Settings” options
shown in figure to the right.
5.5
SENSOR SETUP/CALIBRATION
The “Sensor Settings” screen allows the user to calibrate sensors included with the Quick-Check.
All sensors are setup with a 2-point linear calibration. To
setup the calibration, the user will need two known points. It is best to select two points at opposite ends of the
sensor’s calibration range. The chart above is the recommended 2-Point Calibration range for the “Low Value” and
“High Value”.
The “Low Raw” and “High Raw” are determined by the “Current Raw” reading at the time the known calibration
source is applied to the sensors. For example, when the known purity is 20.9% O2 to the Oxygen Sensor, read the
“Current Raw” value and enter that in the box next to the “High Raw” text. Then apply a known purity of 1.5% O2 to
the sensor and read the “Current Raw” valve (which should be different – if not, the sensor or wiring connection may
be bad) and enter that value in the box next to the “Low Raw” text once the reading becomes pretty steady (apply
the gas for at least 2 minutes).
Other notes for calibrating units with % O2 sensors:
1.
Make sure certified gas is being used for the low point.
2.
Clean dry compressed air (20.9% O2) can be used for the high point.
3.
Make sure to only flow 1-2 scfh to the sensor. Higher flow may damage the sensor.
Calibration Value Ranges
Low Value
High Value
O2 %
0.5-1.5% O2
10-21% O2
Figure 8: 2-Pt Purity Calibration
Table 1: Recommended 2-Point Calibration Ranges
