Absolute Process Instruments Cecomp F20B User manual

Sensor Ranges and Engineering Units ‡ -HA option not available
3 psig ‡Res 15 psig vac ‡Res 30 psia Res –15V100psig ‡Res 300 psig Res
3PSIG .001 100KPAVAC .1 2KGCMA .001 –15V100PSIG .1 300PSIG .1
6INHGG .001 0.1MPAVAC .0001 2ATMA .001 –30INHG/100PSIG .1 610INHGG .1
85INH2OG .1 1BARVAC .001 30 psig Res –30V200INHGG .1 4800ZING 1
50ZING .01 1KGCMVAC .001 30PSIG .01 –400V2770INH2OG 1700FTH2O .1
210GCMG .1 1ATMVAC .001 60INHGG .01 –240V1600ZING 12000KPAG 1
150MMHGG .1 15 psig Res 850INH2OG 1–760V5200MMHGG 12MPAG .001
150TORRG .1 15PSIG .01 480ZING .1 –760V5200TORRG 120BARG .01
200MBARG .1 30INHGG .01 2100GCMG 1–100V700KPAG 120KGCMG .01
200CMH2OG .1 400INH2OG .1 1600MMHGG 1–0.1V0.7MPAG .001 20ATMG .01
2000MMH2OG 1240ZING .1 1600TORRG 1–1V7BARG .01 500 psig Res
7FTH2O .001 1000GCMG 12000MBARG 1–1V7KGCMG .01 500PSIG .1
20KPAG .01 760MMHGG .1 2100CMH2OG 1–1V7ATMG .01 1020INHGG 1
5 psig ‡Res 760TORRG .1 70FTH2O .01 100 psig Res 1150FTH2O 1
5PSIG .001 1000MBARG 1200KPAG .1 100PSIG .1 3500KPAG 1
10INHGG .01 1000CMH2OG 10.2MPAG .0001 200INHGG .1 3.5MPAG .001
140INH2OG .1 35FTH2O .01 2BARG .001 2770INH2OG 135BARG .01
80ZING .1 100KPAG .1 2KGCMG .001 1600ZING 135KGCMG .01
350GCMG .1 0.1MPAG .0001 2ATMG .001 7000GCMG 135ATMG .01
260MMHGG .1 1BARG .001 60 psig Res 5200MMHGG 11000 psig Res
260TORRG .1 1KGCMG .001 60PSIG .01 5200TORRG 11000PSIG 1
350MBARG .1 1ATMG .001 120INHGG .1 7000MBARG 12040INHGG 1
350CMH2OG .1 ±15 psig ‡Res 1660INH2OG 17000CMH2OG 12300FTH2O 1
3500MMH2OG 1±15PSIG .01 960ZING 1230FTH2O .1 7000KPAG 1
12FTH2O .01 –30INHG/15PSIG .01 4200GCMG 1700KPAG .1 7MPAG .0001
35KPAG .01 ±30INHGG .01 3100MMHGG 10.7MPAG .0001 70BARG .01
15 psia Res ±400INH2OG 13100TORRG 17BARG .001 70KGCMG .01
15PSIA .01 ±240ZING .1 4100MBARG 17KGCMG .001 70ATMG .01
30INHGA .01 ±1000GCMG 14200CMH2OG 17ATMG .001 2000 psig Res
400INH2OA .1 ±760MMHGG 1140FTH2O .1 –15V200 psig ‡Res 2000PSIG 1
240ZINA .1 ±760TORRG 1400KPAG .1 –15V200PSIG .1 4070INHGG 1
1000GCMA 1±1000MBARG 10.4MPAG .0001 –30INHG/200PSIG .1 4600FTH2O 1
760MMHGA .1 ±1000CMH2OG 14BARG .001 –30V400INHGG .1 14MPAG .01
760TORRA .1 ±100KPAG .1 4KGCMG .001 –400V5500INH2OG 1140BARG .1
1000MBARA 1±0.1MPAG .0001 4ATMG .001 –240V3200ZING 1140KGCMG .1
1000CMH2OA 1±1BARG .001 100 psia Res –100V1400KPAG 1140ATMG .1
100KPAA .1 ±1KGCMG .001 100PSIA .1 –0.1V1.4MPAG .001 3000 psig Res
0.1MPAA .0001 ±1ATMG .001 200INHGA .1 –1V14BARG .01 3000PSIG 1
1BARA .001 30 psia Res 2770INH2OA 1–1V14KGCMG .01 6100INHGG 1
1KGCMA .001 30PSIA .01 1600ZINA 1–1V 14ATMG .01 6900FTH2O 1
1ATMA .001 60INHGA .01 7000GCMA 1200 psig Res 20MPAG .01
15 psig vac ‡Res 850INH2OA 15200MMHGA 1200PSIG .1 200BARG .1
15PSIVAC .01 480ZINA .1 5200TORRA 1400INHGG .1 200KGCMG .1
30INHGVAC .01 2100GCMA 17000MBARA 15500INH2OG 1200ATMG .1
400INH2OVAC .1 1600MMHGA 17000CMH2OA 13200ZING 15000 psig Res
240ZINVAC .1 1600TORRA 1700KPAA .1 480FTH2O .1 5000PSIG 1
1000GCMVAC 12000MBARA 10.7MPAA .0001 1400KPAG 135MPAG .01
760MMHGVAC .1 2100CMH2OA 17BARA .001 1.4MPAG .001 350BARG .1
760TORRVAC .1 200KPAA .1 7KGCMA .001 14BARG .01 350KGCMG .1
1000MBARVAC 10.2MPAA .0001 7ATMA .001 14KGCMG .01 340ATMG .1
1000CMH2OVAC 12BARA .001 14ATMG .01
Cecomp®Battery Powered Digital Pressure Gauges w. Memory Options & Selectable Units F20B, F22B
Ranges and Resolution
See table below for standard ranges and units
Resolution is fixed for each engineering unit
Accuracy
Accuracy includes linearity, hysteresis, repeatability
Standard accuracy: ±0.25% of full scale ±1 least significant digit
HA accuracy option: ±0.1% FS ±1 LSD, see ranges for availability
Sensor hysteresis: ±0.015% FS, included in accuracy
Sensor repeatability: ±0.01% FS, included in accuracy
Display
3 readings per second nominal display update rate
4 digit LCD, 0.5" H and 5 character 0.25" H alphanumeric
BL models: red LED backlight
Batteries, Battery Life
B: 2 AA alkaline, approx. 2000 hours
BL: 2 AA alkaline, approx. 150 to 1500 hours depending on
backlight usage
Controls and Functions
Three button keypad: Zero/clear, on/off, memory
BL models: Backlight active for 1 minute (user configurable)
F20B Peak Reading Memory
-M4: MEM 1 ~ MEM 4 or 4 tire designations: LF, RF, LR, RR
-M8: MEM 1 ~ MEM 8 or 4 tires plus 4 inner liner designations:
LF, LF IN, RF, RF IN, LR, LR IN, RR, RR IN
F22B Min/Max Memory
Minimum and/or maximum readings stored in memory, readings
cleared or stored at shutoff. User configurable.
Auto Shutoff
User selectable 1 minute to 8 hours or front button on/off
Factory default 5 minutes, unless other time is specified
O±0.25% Test Gauge Accuracy, ±0.1% Optional
O316L Stainless Steel Wetted Parts
OKeypad Selectable Units and Auto Shutoff Times
OStore Readings in Memory
F20B, F22B
F20BN, F22BN
NEMA 4X
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
Calibration
Zero button for gauge reference ranges
Pass code protected calibration via keypad
Non-interactive zero, span, and linearity, ±10% of range
Weight
Gauge: 9 ounces (approximately)
Shipping: 1 pound (approximately)
Materials
Standard: Extruded aluminum case, epoxy powder coated, ABS/
polycarbonate bezel, front and rear gaskets, polycarbonate label.
NEMA 4X: UV stabilized ABS/polycarbonate case, polycarbonate dis-
play window, polycarbonate front label, rear gasket, six stainless steel
cover screws. Not intended for permanent outdoor installations.
Connection and Material
1/4" NPT male fitting
All wetted parts are 316L stainless steel
Overpressure, Burst, Vacuum Service
3000 psig sensor: 5000 psig overpressure
5000 psig sensor: 7500 psig overpressure
All others: 2 X pressure range overpressure
Burst pressure: 4 X sensor pressure rating, or 10,000 psi,
whichever is less
Vacuum service: 15 psia, 15 psig, ±15 psig, 30 psia, 100 psia,
100 psig, 200 psig
Environmental Temperatures
Storage temperature: –40 to 203°F (–40 to 95°C)
Operating temperature: –4 to 185°F (–20 to 85°C)
Sensor compensated range: 32 to 158°F (0 to 70°C)
Dimensions
See next page
How to Specify Housing Backlit Memory
F20B range - M4 - options Standard no
4 max
reading
F20BBL range - M4 - options Yes
F20BN range - M4 - options NEMA 4X no
F20BNBL range - M4 - options Yes
F20B range - M8 - options Standard no
8 max
reading
F20BBL range - M8 - options Yes
F20BN range - M8 - options NEMA 4X no
F20BNBL range - M8 - options Yes
F22B range - options Standard no
Min/max
F22BBL range - options Yes
F22BN range - options NEMA 4X no
F22BNBL range - options Yes
Quick Link
cecomp.com/bat
G gauge reference pressure
VAC gauge reference vacuum
A absolute reference
psi = PSI
inHg = INHG
oz/in2= ZIN
inH2O = INH2O
ftH2O = FTH2O
mmHg = MMHG
torr = TORR
mmH2O = MMH2O
kg/cm2= KGCM
g/cm2= GCM
kPa = KPA
MPa = MPA
mbar = MBAR
bar = BAR
cmH2O = CMH2O
atm = ATM
15V = –14.7 psi vac
30V = –30 inHg vac
Range—See table at left. Select a range code for default units.
Options—add to end of model number. See price list for details.
HA High accuracy, ±0.1% FS ±1 LSD. See range table.
PM Panel mount, 4.1" x 4.1", n/a NEMA 4X
FP Sealed housing, CC for high-humidity food processing
applications. NEMA models in absolute reference only.
MC Metal front cover instead of plastic, n/a NEMA 4X
CS Case bottom stiffener plate, n/a NEMA 4X
CC Moisture resistant circuit board conformal coating
TP Top port, gauge port on top of case, n/a NEMA 4X
SM Surface mount plate, n/a NEMA 4X
CD Calibration data, 5 test points and date
NC NIST traceability documentation, 5 points and date
Accessories—order separately
CON14SS
Quick connector to install or remove gauge with-
out tools. 304 stainless steel, urethane seal.
SCR14SS
Filter screen fitting keeps debris out of gauge
sensor. For food vacuum packaging applications.
303SS body, 100 micron 304SS screen.
RB
High visibility orange rubber boot protects gauge
for portable applications. Not available with NEMA
4X models.
TP
Top gauge port. Primarily used with tire pressure
applications. Not available with NEMA 4X models.
© 02-21
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS

Installation Precautions, Ranges and Engineering Units, Basic Operation F20B, F22B
Display Backlighting (BL Models Only)
Display backlighting can be turned on by momentarily pressing
a button whenever the gauge is on. This also restarts the auto
shutoff timer.
F20BBL: The backlighting will turn on for 1 minute and then auto-
matically shut off.
F22BBL: The factory default on-time is 1 minute, but setup allows
setting it to 1 to 255 minutes, or to 0 to disable backlighting.
The red LED display backlighting will not be apparent under bright
lighting conditions.
Power-Up and Normal Operation
Your gauge is ready to use. It was factory
calibrated just prior to shipment with bat-
teries installed.
Press and hold the center power button
for approximately 1 second. The display
is tested.
The full-scale range in the factory default
units is shown first. If the units were
changed by the user, then the full scale
range in the selected engineering units is
displayed next.
The display test is briefly shown again.
The actual pressure and units are displayed.
The gauge is ready for use with readings
updated approx. 3 times per second.
For gauge reference models occasional
flashing of the minus sign is normal and indi-
cates the gauge is at zero pressure. Absolute
gauges only display zero at full vacuum.
XXXXX
8
8
8
8
8
ts
Zero/Clear Memory
2
*
psig
200.0
full
psig
0.0
XXXXX
8
8
8
8
82
scale
Shutoff
The auto shutoff timer starts at power up and resets whenever any
button is pressed. The default time is 5 minutes, but can be set for
a variety of times. If on/off operation is selected, the gauge will stay
on until manually shut off or the batteries are depleted. Turn gauge
off when not in use to conserve battery life.
When an auto shutoff time is used, the
display indicates OFF five seconds prior
to shutoff. Press the power button to keep
the gauge on.
To shut the gauge off manually, press and
hold (about 5 seconds) the center power
button until OFF is displayed.
FFO
ts
Zero/Clear Memory
*
hold
¼" NPT
2.88"
3.38" Standard
3.5" NEMA 4X
0.75"
2.0"
1.65"
NEMA 4X
3.0"
Standard
XXXXX
ts
Zero/Clear Memory
XXXXX
8
8
8
8
82
Zero display (gauge reference only)
Clear min/max, Up arrow for setup
Display min/max readings
Down arrow for setup
Power button
Turn on backlight (BL versions)
Alphanumeric display
4 digit display
Low battery symbol
Error or Out-of-Range Indications
Attempting to zero the gauge with pressure
greater than approximately 3% of full-scale
pressure or vacuum will result in an error
condition. The display will alternately indi-
cate Err 0 and the actual pressure. The
gauge must be powered down to reset the
error condition.
If excessive vacuum is applied to a pres-
sure-only gauge, the display will indicate
-Err until the vacuum is released. Applying
vacuum to a pressure-only gauge can dam-
age the pressure sensor.
If 112.5% over range pressure is applied
, an out-of-range indication of 1 – – – or
1.–.–.– will be displayed depending on model.
0rrE
rrE
- or -
Press and hold the Zero/Clear button.
Occasional flashing of the minus sign with
zero pressure/vacuum is normal.
The stored zero correction is erased when
the gauge is shut off.
Continue to press the Zero/Clear button until
oooo is displayed then release the button.
The gauge in now zeroed.
oooo
psig
0.0
ts
Zero/Clear Memory
*
hold
psig
0. I
ts
Zero/Clear Memory
*
Zero the Display (Gauge Reference Only)
Absolute reference gauges do not use the zero feature since they
read atmospheric pressure under normal conditions.
Be sure the gauge is in the normal operating
mode. The gauge port must be exposed to
normal atmospheric pressure with no pres-
sure or vacuum applied.
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS
Types of Gauges
Gauge reference sensors always read zero with an open gauge port.
Ranges 1000 psi and higher use a 14.7 psi sealed reference sensor.
They are functionally similar to gauge reference sensors.
Bipolar sensors read positive pressure and vacuum in the same
units, and zero with the gauge port open.
Compound ranges read inHg for vacuum and psig for pressure.
Absolute reference gauges read zero at full vacuum. With an open
gauge port, their readings will vary due to continuously changing
barometric pressure.
Installation Precautions
4Read these instructions before using the gauge. Configuration may
be easier before installation. Contact the factory for assistance.
4These products do not contain user-serviceable parts, except
batteries. Contact us for repairs, service, or refurbishment.
4Gauges must be operated within specified ambient temperature
ranges.
4Permanent installations must be indoors only. Outdoor or wash
down applications require installation in a NEMA 4X housing.
4Use a pressure or vacuum range appropriate for the application.
4Use fittings appropriate for the pressure range of the gauge.
4Due to the hardness of 316 stainless steel, it is recommended
that a thread sealant be used to ensure leak-free operation.
4For contaminated media use an appropriate screen or filter to
keep debris out of gauge port.
4Remove system pressures before removing or installing gauge.
4Install or remove gauge using a wrench on the hex fitting only.
Do not attempt to turn gauge by forcing the housing.
4Good design practice dictates that positive displacement liquid
pumps include protection devices to prevent sensor damage
from pressure spikes, acceleration head, and vacuum extremes.
p Avoid permanent sensor damage! Do not apply vacuum to non-
vacuum gauges or hydraulic vacuum to any gauges.
p Avoid permanent sensor damage! NEVER insert objects into
gauge port or blow out with compressed air.
Gauges are not for oxygen service. Accidental rupture of sensor dia-
phragm may cause silicone oil inside sensor to react with oxygen.
Cecomp maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See cecomp.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals including
nickel and chromium, which are known to the State of Califor-
nia to cause cancer or birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
psi Compound inHg torr mmHg inH2O ftH2O oz/in2mmH2O cmH2O g/cm2kg/cm2atm mbar bar kPa MPa
0to 14.70 psig vac n/a 29.92 vac 760.0 vac 760.0 vac 406.8 vac 33.90 vac 235.1 vac n/a 1033 vac 1033 vac 1.033 vac 1.000 vac 1013 vac 1.013 vac 101.3 vac .1013 vac
–14.70 to 15.00 psig –29.92 inHg
to 15.00 psi
–29.92 to
30.54
–760.0 to
775.7
–760.0 to
775.7
–406.8 to
415.2
–33.90 to
34.61
–235.1 to
240.0 n/a –1033 to 1055
–1033 to
1055
–1.033 to
1.055
–1.000 to
1.021
–1013 to
1034
–1.013 to
1.034
–101.3 to
103.4
–.1013 to
.1034
–14.7 to 100.0 psig –29.9 inHg
to 100.0 psi
–29.9 to
203.6
–760 to
5171
–760 to
5171
–407 to
2768
–33.9 to
230.7
–235 to
1600 n/a –1033 to 7031
–1033 to
7031
–1.033 to
7.031
–1.000 to
6.805
–1013 to
6895
–1.013 to
6.895
–101.3 to
689.5
–.1013 to
.6895
–14.7 to 200.0 psig –29.9 inHg
to 200.0 psi
–29.9 to
407.2 n/a n/a –407 to 5536
–33.9 to
461.4
–235 to
3200 n/a n/a n/a –1.03 to 14.06
–1.00 to
13.61 n/a –1.01 to 13.79
–101 to
1379
–.101 to
1.379
0to 3.000 psig n/a 6.108 155.1 155.1 83.0 6.921 48.00 2109 210.9 210.9 .2109 .2041 206.8 .2068 20.68 n/a
0to 5.000 psig n/a 10.18 258.6 258.6 138.4 11.54 80.0 3515 351.5 351.5 .3515 .3402 344.7 .3447 34.47 n/a
0to 15.00 psig n/a 30.54 775.7 775.7 415.2 34.61 240.0 n/a 1055 1055 1.055 1.021 1034 1.034 103.4 .1034
0to 30.00 psig n/a 61.08 1552 1552 830 69.21 480.0 n/a 2109 2109 2.109 2.041 2068 2.068 206.8 .2068
0to 60.00 psig n/a 122.2 3103 3103 1661 138.4 960 n/a 4218 4218 4.218 4.083 4137 4.137 413.7 .4137
0to 100.0 psig n/a 203.6 5171 5171 2768 230.7 1600 n/a 7031 7031 7.031 6.805 6895 6.895 689.5 .6895
0to 200.0 psig n/a 407.2 n/a n/a 5536 461.3 3200 n/a n/a n/a 14.06 13.61 n/a 13.79 1379 1.379
0to 300.0 psig n/a 610.8 n/a n/a n/a 692.0 4800 n/a n/a n/a 21.09 20.41 n/a 20.68 2068 2.068
0to 500.0 psig n/a 1018 n/a n/a n/a 1153 n/a n/a n/a n/a 35.15 34.02 n/a 34.47 3447 3.447
0to 1000 psig n/a 2036 n/a n/a n/a 2307 n/a n/a n/a n/a 70.31 68.05 n/a 68.95 6895 6.895
0to 2000 psig n/a 4072 n/a n/a n/a 4614 n/a n/a n/a n/a 140.6 136.1 n/a 137.9 n/a 13.79
0to 3000 psig n/a 6108 n/a n/a n/a 6921 n/a n/a n/a n/a 210.9 204.1 n/a 206.8 n/a 20.68
0to 5000 psig n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 351.5 340.2 n/a 344.7 n/a 34.47
15.00 to 0 psi abs n/a 30.54 abs 775.7 abs 775.7 abs 415.1 abs 34.61 abs 240.0 abs n/a 1055 abs 1055 abs 1.055 abs 1.021 abs 1034 abs 1.034 abs 103.4 abs .1034 abs
30.00 to 0 psi abs n/a 61.08 abs 1552 abs 1552 abs 830 abs 69.21 abs 480.0 abs n/a 2109 abs 2109 abs 2.109 abs 2.041 abs 2068 abs 2.068 abs 206.8 abs .2068 abs
100.0 to 0 psi abs n/a 203.6 abs 5172 abs 5172 abs 2767 abs 230.7 abs 1600 abs n/a 7031 abs 7031 abs 7.031 abs 6.805 abs 6895 abs 6.895 abs 689.5 abs .6895 abs

Basic Operation, Configuration F20B, F22B
Enter Configuration Pass Code
Enter the pass code. 3510 is the factory
default, but it is user-modifiable.
Use the sor tbuttons to set the left-most
digit to 3.
Gauge Configuration
The gauge uses 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
ts
Zero/Clear Memory
*
1
*
2
GFC
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.
ts
Zero/Clear Memory
*
*
___3
CFGPC
- or -
__53
CFGPC
ts
Zero/Clear Memory
*
___3
CFGPC
_I53
CFGPC
I53
CFGPC
ts
Zero/Clear Memory
*
0I53
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 sor tbuttons 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 sor tbuttons 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 sor tbuttons 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 tbutton
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 sbutton.
The lower display will indicate FCTRY.
Press and release the Power button to
restore the factory configuration and restart the gauge.
ts
Zero/Clear Memory
*
USER
ts
Zero/Clear Memory
*
USER
ts
Zero/Clear Memory
*
FCTRY
*
then
- or -
F20B Memory
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.
ts
Zero/Clear Memory
*
00
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.
00
MEM I
psig
0.0
0002
MEM I
t
s
Zero/Clear 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.
F22B Min/Max Memory
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
ts
Zero/Clear Memory
*
ts
Zero/Clear Memory
*
ts
Zero/Clear Memory
*
ts
Zero/Clear Memory
*
0002
MEM
00
MEM I
rlc
MEM I
ts
Zero/Clear Memory
*
MIN
MAX
or
or
ts
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 sand tbuttons 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 appear. The gauge must be changed
to -/+EU first before alternate engineering
units may be selected. Use the sand
tbuttons to navigate through the list of
engineering units.
When the desired units are displayed, press and release the Power
button to save your selection and move to the next parameter.
ts
Zero/Clear Memory
*
*
PSIG
- or -
INHG
ts
Zero/Clear Memory
*
Auto Shutoff Time Selection
The auto shutoff time is displayed on the
upper display. The lower display will indi-
cate AST M if the time displayed is in
minutes or AST H if it is in hours.
Use the sand tbuttons 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.
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 to restore the custom time.
F20B: Go to the appropriate F20B Memory section on the next
page to continue user configuration.
F22BBL: Go to the F22BBL Backlight Shutoff Time section on the
next page to continue user configuration.
5
AST M
I
AST H
ts
Zero/Clear Memory
ts
Zero/Clear Memory
*
*
- or -
*
F22B Min/Max Setup
After the center power button is pressed
when in user configuration mode, the dis-
play indicates MX/MN or the previous
configuration.
Use the sor tbuttons 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 sbutton to select AUTO and the
or tbutton 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.
MX/--
MX/MN
--/MN
MX/--
MX/MN
ts
Zero/Clear Memory
ts
Zero/Clear Memory
*
*
- or -
ts
Zero/Clear Memory
*
MAN
- or -
*
*
rlc
Auto
man
ts
Zero/Clear Memory
ts
Zero/Clear Memory
*
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS

Configuration, Calibration, Changing Pass Code F20B, F22B
Calibration Preparation
Gauges are factory calibrated at approximately 23°C using NIST
traceable calibration equipment. Calibration is not required before
using the gauge. Calibration intervals depend on your quality stan-
dards, but annual re-calibration is customary. Calibration should
only be performed by qualified individuals using appropriate cali-
bration standards and procedures.
The calibration system must be able to generate and measure
pressure/vacuum over the full range of the gauge and should be
at least four times more accurate than the gauge being calibrated.
A vacuum pump able to produce a vacuum of 100 microns (0.1 torr
or 100 millitorr) or lower is required for vacuum gauges.
Install fresh batteries and allow the gauge to acclimate to ambient
temperature for 20 minutes.
Entering Calibration Mode
With the gauge off, press and hold the tbutton. Then press the
Power button. Release all buttons when the display indicates CAL.
The display begins by indicating the full-scale positive pressure
rating of the gauge in the engineering units as configured by the
factory, and then shows all display.
Before the gauge enters the Calibration Mode, the display ini-
tially indicates _ _ _ _ with the first underscore blinking, and with
CALPC (calibration pass code) on the lower display.
Enter the 3510 pass code as described in the Configuration Pass
Code section.
Calibration Mode
The gauge enters and remains in the Calibration Mode until
restarted manually or power is removed. Features not related to
calibration are disabled and compound range models are set for the
same engineering units for pressure and for vacuum.
The calibration may be performed in any of the available engineer-
ing units as well as percent (PCT).
For greatest accuracy, use the sand tbuttons to select engi-
neering units for calibration with highest resolution (highest number
of display counts).
Press and release the Power button when the appropriate engineer-
ing units are displayed. Suggested units are listed below.
Sensor Suggested units for calibration
3 PSI 6.920 FTH2O
5 PSI 5.000 PSI
15 PSI 775.7 MMHG or TORR
30 PSI 61.08 INHG
50 PSI 50.00 PSI
60 PSI 60.00 PSI
100 PSI 7.031 KG/CM2
200 PSI 407.2 INHG
300 PSI 610.8 INHG
500 PSI 3447 KPA
1000 PSI 6895 KPA
2000 PSI 4613 FTH2O
3000 PSI 6920 FTH2O
5000 PSI 5000 PSI
The display will then indicate the currently applied pressure in the
engineering units selected for calibration.
sand tButton Operation
Each time one of the sor tbuttons is pressed and released
quickly, a small change is made to the digitized pressure signal. It
may take more than one of these small changes to result in a single
digit change on the display.
To make larger changes, press and hold the appropriate button.
After about one second, the display will begin to change continu-
ously. Release the button to stop. Then make fine adjustments by
pressing and quickly releasing the buttons as previously described.
Gauge Reference Pressure Gauges
Apply zero pressure by venting the gauge port to atmosphere. The
character display will alternate between ZERO and CAL. Adjust
for a display indication of zero using the sand tbuttons.
Apply full-scale pressure. The character display will alternate
between +SPAN and CAL. Adjust for a display indication of
full-scale pressure using the sand tbuttons.
Apply 50% full-scale pressure. The character display will alternate
between +MID and CAL. Adjust for a display indication equal to
50% of full-scale pressure using the sand tbuttons.
Gauge Reference Vacuum Gauges
Apply zero pressure by venting the gauge port to atmosphere. The
character display will alternate between ZERO and CAL. Adjust
for a display indication of zero using the sand tbuttons.
Apply full-scale vacuum. The character display will alternate
between +SPAN and CAL. Adjust for a display indication of
full-scale vacuum using the sand tbuttons.
Apply 50% full-scale vacuum. The character display will alternate
between +MID and CAL. Adjust for a display indication equal to
50% of full-scale vacuum using the sand tbuttons.
Absolute Reference Gauges
Apply full vacuum to the gauge. The character display will alternate
between ZERO and CAL. Press the sand tbuttons to obtain
a display indication of zero.
Apply full-scale pressure. The character display will alternate
between +SPAN and CAL. Press the sand tbuttons to obtain
a display indication equal to full-scale pressure.
Apply 50% of full-scale pressure. The lower display will alternate
between +MID and CAL. Press the sand tbuttons to obtain
an indication equal to 50% of full-scale pressure.
Compound and Bipolar Gauges
In addition to the steps described above for pressure gauges, apply
full-scale vacuum. The character display will alternate between
-SPAN and CAL. Adjust for a display indication of actual applied
vacuum using the sand tbuttons.
For bipolar and –30.00inHg/+15.00psig compound range models
only, apply 50% full-scale vacuum. The character display will
alternate between -MID and CAL. Adjust for a display indication
equal to 50% of full-scale vacuum using the sand tbuttons.
Save Calibration
Press and hold the Power button until the display indicates - - - -
then release the button to store the calibration parameters in non-
volatile memory and restart the gauge.
Verify the pressure indications at 0%, 25%, 50%, 75% and 100%
of full scale.
Note: it is possible to do a zero calibration without affecting other
calibration points. After Zero calibration, press and hold the Power
button until the display indicates - - - - then release the button to
store the new zero point calibration and restart the gauge.
User-Defined Pass Code Configuration
The factory default pass code 3510 may be changed to a different
value for configuration and/or calibration.
Configuration Pass Code
With the unit off, press and hold the sbutton to view and/or
change the user configuration pass code. Then press the Power
button. Release all buttons when the display indicates CFG.
Calibration Pass Code
With the unit off, press and hold the tbutton to view and/or
change the user calibration pass code. Then press the Power but-
ton. Release all buttons when the display indicates CAL.
Change Pass Code Mode
Before the unit enters the view or change pass code mode, the
display initially indicates _ _ _ _ with the first underscore blinking,
and with CFGPC or CALPC on the character segments.
Note: The unit will automatically revert to normal operation if no
buttons are operated for approximately 15 seconds. To cancel and
return to normal operation, press and release the Power button
without entering any pass code characters.
Enter access code 1220:
Use the sand tbuttons to set the left-most digit to 1.
Press and release the Power button to index to the next position.
The 1 will remain, and the second position will be blinking.
Use the sand tbuttons to select 2.
Press and release the Power button to index to the next position. 1
2 will remain, and the third position will be blinking.
Use the sand tbuttons to select 2.
Press and release the Power button to index to the next position. 1
2 2 will remain, and the fourth position will be blinking.
Use the sand tbuttons to select 0.
Press and release the Power button to proceed.
Note: If an incorrect access code was entered, the gauge will return
to the start of the access code entry sequence.
Change Pass Code
Once the access code has been entered correctly, the display will
indicate the existing user-defined pass code with CFGPC or
CALPC on the character segments.
Press the sor tbutton to select the first character of the new
pass code.
When the correct first character is being displayed, press and
release the Power button to proceed to the next pass code character.
Repeat above until the entire pass code is complete.
To exit the User Defined Pass Code change mode, press and hold
the Power button.
Release the button when the display indicates - - - - to restart
the gauge.
F20B Memory—M4 Versions
The M4 version allows recording pressure readings of up to four
tires. While in the memory mode the peak reading is captured.
The number 1 is shown on the upper
display. The lower display will indicate the
label for memory 1.
Use the sand tbuttons to select MEM 1,
or LF, RF, RR, or LR. The labels can be set
up in any order.
When the desired label for memory 1 is
displayed, press the Power button.
Repeat the steps for the other memory
locations. When the desired label for memory
4 is displayed, press and release the Power
button to save the user configuration and
restart the gauge.
I
Mem I
- or -
I
LF
ts
Zero/Clear Memory
ts
Zero/Clear Memory
*
*
*
F20B Memory—M8 Versions
The M8 version allows recording of up to eight pressure readings.
While in the memory mode the peak reading is captured.
The eight memory labels can be set for MEM
1 through MEM 8, or for 4 tires and 4 tire
inner liners used for auto racing.
After auto shutoff time selection, the number
1 is on the upper display. The lower display
will indicate the label for memory 1.
Use the sand tbuttons to select MEM 1,
or one of the 8 memory labels: LF, LF IN, RF,
RF IN, RR, RR IN, LR, LR IN. The labels can
be set up in any order.
When the desired label for memory 1 is dis-
played, press and release the Power button.
Repeat the steps for the other memory
locations. When the desired label for the last
memory location is displayed, press and release the Power button
to save the user configuration and restart the gauge.
I
Mem I
I
LF IN
ts
Zero/Clear Memory
*
*
- or -
ts
Zero/Clear Memory
*
F22BBL Backlight Time Selection
The lower display will indicate BL if the
display backlight is enabled or NO BL if
display backlight is disabled.
Use the sbutton to enable backlighting
and the tbutton to disable backlighting.
Press the power button to save the setting.
If NO BL was selected the user setup is
complete and the gauge will restart and be
ready for use with the new configuration.
If BL was selected the current backlight
auto shutoff time is displayed in minutes.
1 minute is the factory default.
Use the sand tbuttons to select the
minutes for backlight shutoff time.
A setting of zero disables the auto shutoff timer and the backlight
will be on whenever the gauge is on. The maximum setting is 255
minutes. The gauge auto shutoff time will override the backlight
time. When the desired time is displayed, press and release the
power button to save your selection and restart the gauge.
ts
Zero/Clear Memory
*
*
BL
- or -
No BL
ts
Zero/Clear Memory
2
BLTMR
* *
- or -
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS
Battery Replacement
A low battery indication will be shown in the upper left-
hand corner of the display when the battery voltage falls
sufficiently. The batteries should be replaced soon after
the indicator comes on or unreliable readings may result.
1. Remove the 6 Phillips screws on the back of the unit.
2. Lift up the battery holder.
3. Remove batteries by lifting up the
positive end of the battery (oppo-
site the spring) taking care not to
bend the battery holder spring.
4. Discard old batteries properly,
do not discard into fire, sources
of extreme heat, or in any haz-
ardous manner.
5. Always replace both batteries at
the same time with high quality
alkaline batteries.
6. Install batteries with correct orientation. Incorrect polarity will
damage the gauge. The negative (flat) end of each battery
should be inserted first facing the battery holder spring.
7. Replace battery holder face down being careful not to pinch the wires.
8. Replace the back cover, including the rubber gasket and rein-
stall the six screws.
Lift up the
battery holder
Disposal of Electrical & Electronic Equipment Applicable
in the European Union and other European countries.
This product should not be treated as household waste
when you wish to dispose of it. Please contact your local
waste disposal authority for information and collection
location for recycling electrical and electronic equipment.
You may also return this product via pre-paid shipping
to Absolute Process Instruments or your supplier for proper disposal.