Filter
Top Products
Preparing for Operation H25-IR
16 Instruction 3015-4342
2.5.3 Gas Type
The GAS TYPE function sets the type of gas being monitored. Use the Up and Down buttons to highlight
the desired gas. Press ENT to save the selection.
NOTE: The gases displayed depend on which optical bench is installed. Refer to Section “
7 Specifications.”
2.5.4 Feedback Mode
The FEEDBACK MODE function provides the operator both visual and audible feedback in regard to the
measured leak rate. This function determines how the gas-level graphical display (bar graph located at the
bottom of the display) and audible tone operate as follows:
CONTINUOUS – The bar graph and audible tone continuously increase and decrease their values in step
with the leak rate. For example, when the leak rate increases, the bar graph moves upscale and the
audible tone increases in frequency. Their maximum values at various leak rates are determined by the
Range setting.
SETPOINT – Both the bar graph and audible tone go to their maximum values when the leak rate equals
or goes above the setpoint. Enter a setpoint value per Section
2.5.5 Setpoint.
H25C SETPOINT – This setting emulates the operation of the H25C Industrial Halogen Leak Detector.
The bar graph and audible tone are suppressed when the leak rate is below the setpoint. They both go to
their 50% values when the leak rate reaches the setpoint, and then they both continuously increase in
value as the leak rate increases until reaching their maximum values at 2-times the setpoint. Enter a
setpoint value per Section
2.5.5 Setpoint.
Use the Up and Down buttons to highlight the desired function. Press ENT to save the selection.
2.5.5 Setpoint
The SETPOINT function establishes a leak rate at which the graphical display and audible tone are
turned ON as determined by the Feedback Mode setting (refer to the previous section).
The setpoint value also sets the leak rate at which one or more of the instrument’s relays is energized
whenever the leak rate equals, exceeds, or falls below the setpoint value (refer to Section
2.4.3 Relays),
plus it establishes a reference point where the instrument’s auto-zero function can be turned OFF while in
the Search mode (refer to Section
2.5.6 Search Auto Zero).
Use the Left and Right buttons to move the cursor across the screen to highlight the digit to be modified,
and then use the Up and Down buttons to modify that digit. Press ENT to save the new setpoint.
GAS TYPE < R134
A
SETUP NO. 1 R401A
R402A
< R402B
SETPOINT
SETUP NO. 1
00.0000 Oz/yr
FEEDBACK MODE
SETUP NO. 1
CONTINUOUS
SETPOINT
H25C SETPOINT