Heath Consultants Hi Flow Sampler - Manual (Page 14)

Operation Hi Flow

Sampler
14 Instruction 0055-9017
After the banner screen is displayed, the sensors are automatically zeroed to ambient
conditions. Zeroing time is dependent on the temperature of the sensors, and whether
there is residual gas present inside the sensor chambers. If a sensor fails to zero, a
message appears at the bottom of the LCD describing the cause of the failure. Refer to
Section 6 Troubleshooting for possible causes and remedies for this failure.
After the sensors are zeroed, either the instrument’s Basic or Expanded Main Screen
appears (refer to Section 2.8). The example below shows the Basic Main Screen.
The arrow symbols on the left indicate that
there are more items to view above and/or
below the current display.
Press the ∧ and ∨ keys to view additional
items.
2.7 Turning OFF the Hi Flow

Sampler
Turn OFF the unit by flipping the ON/OFF switch to its OFF position.
2.8 Selecting the Basic or Expanded Menu Mode
Select the Basic or Expanded Menu Mode as follows:
1. From either the Basic or Expanded Main Screen, select Menu > Menu Mode.
2. Highlight the desired menu mode, and then press the I/O ↵ key to select that
mode.