Instructions
F20B, F22B
Enter the pass code. 3510 is the factory
default, but it is user-modifiable.
Use the
s
or
t
buttons to set the left-most
digit to 3.
Gauge Configuration
The gauge is designed to use a 4 digit pass code to enter the
configuration modes. This is to prevent unauthorized changing of
settings.
With the gauge off, press and hold the
s
button. Then press the Power button.
Release all buttons when the display indi-
cates
CFG
. The gauge firmware version is
also displayed.
hold
t
s
Zero/Clear
Memory
*
1
*
2
G
F
C
firmware version
power up sequence
_
_
_
_
CFGPC
The gauge then goes through the normal
power up sequence.
The display prompts for entry of the configu-
ration pass code (
CFGPC
), with the first
underscore blinking.
Note: The gauge will automatically revert to normal operation if no
buttons are pressed for approximately 15 seconds. To cancel and
return to normal operation, press and release the Power button
without entering any pass code characters.
t
s
Zero/Clear
Memory
*
*
_
_
_
3
CFGPC
- or -
_
_
5
3
CFGPC
t
s
Zero/Clear
Memory
*
_
_
_
3
CFGPC
_
I
5
3
CFGPC
0
I
5
3
CFGPC
t
s
Zero/Clear
Memory
*
0
I
5
3
CFGPC
Press and release the Power button to index
to the next position.
The 3 will remain, and the second position
will be blinking.
Use the
s
or
t
buttons to select 5.
Press and release the Power button to index
to the next position. 3 5 will remain, and the
third position will be blinking.
Use the
s
or
t
buttons to select 1.
Press and release the Power button to index
to the next position. 3 5 1 will remain, and
the fourth position will be blinking.
Use the
s
or
t
buttons to select 0.
Press and release the Power button to pro-
ceed with configuration procedures.
Note: If an incorrect pass code is entered,
the gauge will return to the start of the pass
code entry sequence.
Gauge Configuration—User or Factory
Upon successful pass code entry, the upper
display will be blank, and the lower sec-
tion will display
USER
. If User is not
displayed press and release the
t
button
to change the lower display to
USER
. With
User selected, the gauge configuration can
be modified as described in the following
sections.
Press and release the Power button to con-
tinue with configuration.
F20B:
Go to
Engineering Unit Selection
to
continue user configuration.
F22B:
Go to the
F22B Min/Max Setup
sec-
tion to continue user configuration.
If Factory (
FCTRY)
is selected, the user
configuration will be replaced by the con-
figuration as it left the factory. To select
Factory, press and release the
s
button.
The lower display will indicate
FCTRY
.
Press and release the Power button to
restore the factory configuration and restart the gauge.
t
s
Zero/Clear
Memory
*
USER
t
s
Zero/Clear
Memory
*
USER
t
s
Zero/Clear
Memory
*
FCTRY
*
then
- or -
Enter Configuration Pass Code
With the gauge powered up and in the
normal operating mode, press and release
the Memory button to sequence through the
memory locations.
When the Memory button is pressed the
gauge is in the peak hold mode. A new
higher reading will replace an existing read-
ing, but a pressure reading lower then the
one displayed will not be saved.
When desired memory location is displayed,
take the pressure reading. The peak reading
will be captured.
Remove the gauge from the pressure source
and press the memory button for the next
location.
Repeat until all readings are taken.
The readings will be saved even if the
gauge is shut off.
Press and release the Power button to exit
the memory mode and return to live pres-
sure readings.
F20B Memory
t
s
Zero/Clear
Memory
*
0
0
PSIG
Clear a Memory Location
Press and release the Memory button until
the value to be cleared is displayed.
Press and hold the Zero/Clear button.
Release the button when
clr
is displayed.
The reading for the indicated memory loca-
tion will be cleared.
With a gauge reference models if no pres-
sure is applied, the value will return to zero.
If pressure is applied the new pressure
reading will be stored in memory.
Absolute reference models will store the
current atmospheric pressure reading if the
gauge port is open to atmosphere.
Press and release the Power button to exit
the memory mode and return to live pres-
sure readings.
0
0
MEM I
psig
0.0
0
0
0
2
MEM I
t
s
Zero/Clear
Memory
*
F22B Min/Max Memory
Press and release the Memory button to
view the maximum stored value.
The center power button may be pressed
at any time to return to the normal display
mode.
The gauge may be left in the maximum dis-
play mode if desired. The maximum reading
will be continuously displayed, stored and
updated.
Press and release the Memory button to
view the minimum stored value.
For many applications it may be best to
bring the system up to normal pressure and
then clear the minimum value.
The gauge may be left in the minimum dis-
play mode if desired. The minimum reading
will be continuously displayed, stored and
updated.
Press and release the center power button
to return to the normal display mode.
The Min/Max setup procedure in the
Gauge Configuration > F22B
Min/Max Setup
section may be used to configure the gauge to
capture both maximum and minimum values, the maximum value
only, or the minimum value only. Only the configured values will
be displayed when the memory button is pressed. The gauge also
may be configured to erase or save the readings when the gauge
powers down.
The Min/Max readings are captured at the rate of 3 times per
second. Note that if a brief pressure deviation occurs, it may not be
captured. The readings are captured any time the gauge is on and
not in the configuration or calibration mode.
psig
200.0
205.0
MAX
psig
200.0
i92.0
MIN
t
s
Zero/Clear
Memory
*
t
s
Zero/Clear
Memory
*
t
s
Zero/Clear
Memory
*
t
s
Zero/Clear
Memory
*
0
0
0
2
MEM
0
0
MEM I
r
l
c
MEM I
t
s
Zero/Clear
Memory
*
MIN
MAX
or
or
t
s
Zero/Clear
Memory
*
Engineering Unit Selection
With the gauge in the user configuration
mode, the upper display will be blank with
the engineering units in the lower display.
Use the
s
and
t
buttons to navigate
through the list of engineering units.
Available engineering units depend on the
sensor range.
For compound gauges the choice of CMPND
(inHg/psig) or -/+EU (±Engineering Units)
will apear. The gauge must be changed
to -/+EU first before alternate engineering
units may be selected.
When the desired units are displayed, press
and release the Power button to save your
selection and move to the next parameter.
t
s
Zero/Clear
Memory
*
*
PSIG
- or -
INHG
t
s
Zero/Clear
Memory
*
Auto Shutoff Time Selection
The auto shutoff time is displayed on the
upper display. The lower display will indicate
AST M
if the time displayed is in minutes
or
AST H
if it is in hours.
Use the
s
and
t
buttons to select 0
(manual shutoff), 1, 2, 5, 10, 15, 20 or 30
minutes, or 1, 2, 4, or 8 hours.
A setting of zero disables the auto shutoff
timer. This requires using the Power button
to shut the gauge off.
When the desired time is displayed, press and
release the Power button to save your selection.
If the gauge was ordered with a custom
shutoff time it will be unavailable if the time
is changed. Reset the gauge to the original factory defaults as
described previously to restore the custom time.
F20B:
Go to the appropriate
F20B Memory
section on the next
page to continue user configuration.
F22B:
Go to the
F22B Backlight Shutoff Time
section on the next
page to continue user configuration.
5
AST M
I
AST H
t
s
Zero/Clear
Memory
t
s
Zero/Clear
Memory
*
*
- or -
*
After the center power button is pressed
when in user configuration mode, the dis-
play indicates
MX/MN
.
Use the
s
or
t
buttons to select the
desired configuration.
MX/MN
to capture both maximum and
minimum readings.
--/MN
to capture minimum readings only.
MX/--
to capture maximum readings only.
Press and release the power button to save
the user configuration and move to the next
setup parameter.
After the center power button is pressed
when in user
MX/MN
configuration mode,
the upper display indicates
clr
.
Use the
s
button to select
AUTO
and the
or
t
button to select
MAN
.
When the lower display indicates
AUTO
,
the maximum and/or minimum readings will
be automatically cleared when the gauge is
powered off.
When the lower display indicates
MAN
, the
maximum and/or minimum readings will
be retained in memory after the gauge is
powered off. The readings can be cleared
manually.
Press and release the power button to save
the user configuration and move to the next
setup parameter.
F22B Min/Max Setup
MX/--
MX/MN
--/MN
MX/--
MX/MN
MAN
r
l
c
man
- or -
*
*
r
l
c
Auto
man
t
s
Zero/Clear
Memory
t
s
Zero/Clear
Memory
*
*
- or -
t
s
Zero/Clear
Memory
*
t
s
Zero/Clear
Memory
t
s
Zero/Clear
Memory
t
s
Zero/Clear
Memory
*
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMP
Div. of
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
