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Menu 4
4-13
Pressure Filter
The Pressure Filter is used to adjust the degree to which the front display pressure value
is filtered. A value of four (4), is the default value. As the value increases, the filtering
level increases, however, the display update rate reduces. Typical filter values would
range between 1 to 10.
Changing the Number of Decimals
Each unit has a default number of decimal places used for pressure display. This may be
adjusted up or down by one decimal place.
1. The decimal digits are set from the Menu | Setup | User. From the Main Menu (press
PREVIOUS until the Main Menu appears), Menu [F6 ⎢Setup [F2] ⎢User [F2].
2. Turn the rotary knob until the label “Display digits” is highlighted.
3. Turn the rotary knob further until the desired number of digits from the default
resolution is highlighted (-1, 0, +1), and then press the ENTER key to select.
Key Click
The Calibrator can be configured to emit a “clicking” sound each time a key is pressed.
1. The key “click” is set from the Menu | Setup | User. From the Main Menu (press
PREVIOUS until the Main Menu appears), press Menu [F6 ⎢Setup [F2] ⎢User [F2].
2. Turn the rotary knob to highlight “Key click” and then highlight either On or Off.
3. Press the ENTER key to select.
Menu | Setup — Units
In addition to the standard units of measure provided by the Calibrator, four user-defined
units are available. To create a user-defined unit, the user enters a name that is one to ten
characters long and a conversion factor that is a multiple of kiloPascals (kPa).
For example, using the information from Table 2-1, the conversion factor for millitorr or
one micron of mercury at 0 °C is calculated as follows.
kPa
psi
x
psi
CmmHg
x
CmmHg
Torr
x
Torr
mTorr
xkPamTorr
1
1450377.0
0193377.0
01
01
1
1
1000 °
°
=
thus the conversion factor simplifies to
6180.7500xkPamTorr =
gld14.bmp
Figure 4-12. Menu | Setup | Units - Menu