Cecomp CTP3B User manual

Cecomp®Test + Battery Powered Digital Pressure Gauges, User Configurable CTP3B
Ranges and Resolution
See table below for ranges and resolution
User configurable for listed engineering units
Resolution is fixed for each engineering unit
Accuracy
±0.1% full scale ±1 least significant digit
Accuracy includes linearity, hysteresis, repeatability
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
White LED backlight active for 1 minute with button keypress
Backlight user configurable for AUTO (1 minute), ON, or OFF
Batteries, Battery Life, Low Battery Indication
2 AA alkaline included
Approx. 150-1500 hours depending on backlight usage
Low battery symbol on display
Controls and Functions
Three button keypad: Zero/Clear/Up, On/Off, Memory/Down
Passcode protected calibration, engineering unit selection,
auto shutoff time, min/max setup
Min/Max Memory
Minimum and/or maximum readings stored in memory
Readings cleared or stored at shutoff
User configurable
Calibration
Zero button for gauge reference ranges
Non-interactive zero, span, and linearity, ±10% of range
Auto Shutoff
Factory default: 5 minutes
User selectable: 1 minute to 8 hours or manual on/off
Weight
Gauge: 9 ounces (approximately)
Shipping: 1 pound (approximately)
Housing Materials
Epoxy powder coated aluminum case with case stiffener,
ABS/ polycarbonate bezel, coated circuit boards for humidity
resistance, front and rear rubber gaskets, polycarbonate label
NEMA 2 (IP51)
Includes rubber boot
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 psig, 100 psia, 200 psig sensors
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
3.67"W x 3.19"H x 2"D with boot, not including fitting
© 02-21
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS
cecomp.com/plus
HHHHHH
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Made in USA
O±0.1% Test Gauge Accuracy
ORuggedized Design
ORed Rubber Boot Included
O316L Stainless Steel Wetted Parts
OSelectable Units and Auto Shutoff Times
OWhite LED Display Backlight
OMin/Max Memory
Calibration Documentation Options—add to end of model number
CD Calibration data; 5 test points and date NC NIST traceability documentation, 5 points and date
Vacuum Range/Resolution Selectable Units
CTP3B15PSIVAC 0 to 14.70 psig vacuum psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2 cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
Vacuum/Pressure Range/Resolution Selectable Units
CTP3B±15PSIG –14.70 to 15.00 psig psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B30V15PSIG –29.92 inHg to 15.00 psig psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B15V100PSIG –14.7 to 100.0 psig psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B30V100PSIG –29.9 inHg to 100.0 psig psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B15V200PSIG –14.7 to 200.0 psig psi, inHg/psi, inHg, torr, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa
CTP3B30V200PSIG –29.9 inHg to 200.0 psig psi, inHg/psi, inHg, torr, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa
Pressure Range/Resolution Selectable Units
CTP3B3PSIG 0 to 3.000 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, mmH2O, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, kPa
CTP3B5PSIG 0 to 5.000 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, mmH2O, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, kPa
CTP3B15PSIG 0 to 15.00 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B30PSIG 0 to 30.00 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B60PSIG 0 to 60.00 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B100PSIG 0 to 100.0 psig psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B200PSIG 0 to 200.0 psig psi, inHg, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa
CTP3B300PSIG 0 to 300.0 psig psi, inHg, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa
CTP3B500PSIG 0 to 500.0 psig psi, inHg, ftH2O, kg/cm2, atm, bar, MPa, kPa
CTP3B1000PSIG 0 to 1000 psig psi, inHg, ftH2O, kg/cm2, atm, bar, MPa, kPa
CTP3B2000PSIG 0 to 2000 psig psi, inHg, ftH2O, kg/cm2, atm, bar, MPa
CTP3B3000PSIG 0 to 3000 psig psi, inHg, ftH2O, kg/cm2, atm, bar, MPa
CTP3B5000PSIG 0 to 5000 psig psi, kg/cm2, atm, bar, MPa
Absolute Reference Range/Resolution Selectable Units
CTP3B15PSIA 15.00 to 0 psi absolute psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B30PSIA 30.00 to 0 psi absolute psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CTP3B100PSIA 100.0 to 0 psi absolute psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
CON14SS
Quick connector to install or remove gauge
without tools. 304 stainless steel, urethane
seal.
SCR14SS
Filter screen fitting keeps debris out of gauge
sensor. For food vacuum packaging applica-
tions. 303SS body, 100 micron 304SS screen.
Accessories—order separately
DPG-OK2, DPG-OK3, DPG-OK6
Pelican®brand high visibility orange heavy
duty waterproof cases. Models available for
storing 2, 3, or 6 gauges.

Shutoff
The auto shutoff timer starts at power up and restarts when-
ever any button is pressed. The default time is 5 minutes but
can be user configured for a variety of times.
If on/off operation is selected, the gauge will stay on until
manually shut off or when the batteries are depleted. Turn
gauge off when not in use.
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 and restart the timer.
To shut the gauge off manually, press
and hold the center power button (about
3 seconds) until OFF is displayed and
then release the button. The gauge shuts off.
continued on next page >>
Installation Precautions, Ranges and Engineering Units CTP3B
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Zero the Display (Gauge Reference Only)
Absolute reference gauges do not use the
zero feature.
Be sure the gauge is in the normal oper-
ating mode. The gauge port must be open
to normal atmospheric pressure with no
pressure or vacuum applied.
Press and hold the Zero/Clear button.
Continue to press the Zero/Clear button
until oooo is displayed then release the
button. The gauge in now zeroed.
Occasional flashing of the minus sign
with zero pressure/vacuum is normal.
The stored zero correction is erased
when the gauge shuts off.
If Err 0 occurs make sure all pressure is
removed and press the power button to reset the error.
oooo
psig
0.0
Zero/Clear Memory
*
hold
psig
0. I
Zero/Clear Memory
*
ts
ts
FFO
Zero/Clear Memory
hold
ts
*
¼" NPT
2.88"
3.38" housing
3.67" with boot
0.75"
1.65"
XXXXX
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
Alphanumeric display
4 digit display
Low battery symbol
Turn at hex fitting only
2.0"
3.19" With boot
ts
OPERATION
Power-Up
Your gauge is ready for use. Batteries
are installed and it has been calibrated
on NIST traceable equipment.
Press and hold the power button for
approx. 1 second. The display is tested.
The full-scale range in the factory default
units is indicated. If the units were
changed by the user, the full scale range
in the selected units is then displayed.
The display test is briefly shown again.
The actual pressure and units are dis-
played. The gauge is ready for use and
readings are updated approximately 3
times per second.
For gauge reference models occasional
flashing of the minus sign is normal and
indicates the gauge is at zero pressure.
Absolute gauges only display zero at full vacuum.
XXXXX
8
8
8
8
8
Zero/Clear Memory
2
psig
200.0
full
psig
0.0
XXXXX
8
8
8
8
82
scale
ts
*
Display Backlighting
Display backlighting, if enabled, will turn on for 1 minute when
the gauge is powered up. The display backlighting may not be
apparent under bright lighting.
It can be turned on at any time by momentarily pressing any
button whenever the gauge is on. This also restarts the auto
shutoff timer.
In user configuration, the backlight can be set for
AUTO: On for 1 minute (factory default)
ON: On whenever the gauge is on
OFF: Disabled, to increase battery life
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 refur-
bishment.
4Gauges must be operated within specified ambient tem-
perature 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 recom-
mended 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 sen-
sor 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 diaphragm 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
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.
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

Instructions CTP3B
Enter Configuration Passcode
Enter the passcode. 3510 is the factory
default, but it is user-modifiable.
Use the sor tbuttons to set the left-
most digit to 3.
Press and release the Power button to
index to the next position.
The 3 will remain, and the second posi-
tion 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
proceed with configuration.
Note: If an incorrect passcode is entered,
the gauge will return to the start of the
passcode entry sequence.
Press and release the Memory button
until Max or Min is displayed.
Depending on your configuration the
gauge may save both Max and Min, or
either Max or Min.
The gauge may be left in the maximum
or minimum display mode if desired. The
reading will be continuously displayed,
stored and updated.
The center power button may be pressed
at any time to return to the normal dis-
play mode.
Min/Max Memory
The Min/Max readings are captured at the rate of 3 times per
second. If a brief pressure deviation occurs, it may not be cap-
tured. The readings are captured any time the gauge is on, but
not while in the configuration or calibration mode.
The gauge can be configured to capture and display:
OBoth maximum and minimum values (factory default)
OThe maximum value only
OThe minimum value only
OSaved Min/Max values when the gauge powers down
Min/Max Memory Retention
The upper display indicates clr and the
lower display will indicate the current
setting for min/max memory. Press:
Power button: Keep setting
sbutton: Select AUTO and automatically
clear the maximum and/or minimum
readings when the gauge is shuts off.
tbutton: Select MAN and retain the
maximum and/or minimum readings in
memory after the gauge is shut off. The
readings can be cleared manually.
Press and release the power button to
save your selection and move to the next
parameter.
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CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS
GAUGE CONFIGURATION
Enter Configuration Mode
The gauge uses a 4 digit passcode
to enter the configuration mode. This
is to prevent unauthorized changing of
settings.
With the gauge off, press and hold the
s button.
Then press the center power button.
Release all buttons when the display
indicates CFG. The gauge firmware ver-
sion is also displayed.
The gauge then goes through the normal
power up sequence.
The display prompts for entry of the
configuration passcode (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 with-
out entering any passcode characters.
hold
Zero/Clear Memory
GFC
firmware version
power up sequence
____
CFGPC
ts
*
1
*
2
Zero/Clear Memory
___3
CFGPC
- or -
__53
CFGPC
Zero/Clear Memory
___3
CFGPC
_I53
CFGPC
Zero/Clear Memory
0I53
CFGPC
ts
*
*
ts
*
ts
*
rlc
Auto
man
Zero/Clear Memory
ts
or
*
*
Engineering Unit Selection
Note: For vacuum/pressure gauges or
compound gauges the choice of CMPND
(inHg/psi) or -/+EU (±Engineering Units)
will appear. Select -/+EU to change to
other engineering units.
Engineering units are shown in the lower
display.
Use the sand tbuttons to navigate
through the list of engineering units.
Available engineering units depend on
the sensor range.
When the desired units are displayed,
press and release the Power button to
save your selection and move to the next
parameter.
Zero/Clear Memory
PSIG
INHG
Zero/Clear Memory
ts
*
*
- or -
ts
*
Auto Shutoff Time Selection
The auto shutoff time is displayed on
the upper display. The lower display
will indicate AST M for minutes or AST
H for 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. Use the Power button to shut the
gauge off.
When the desired time is displayed press
and release the Power button to save
your selection and move to the next
parameter.
Clear a Memory Location
For many applications it may be desir-
able to bring the system up to normal
pressure and then clear the minimum or
maximum value.
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 dis-
played. The reading for the indicated
memory location will be cleared.
With a gauge reference models if no
pressure 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
pressure readings.
00
MAX
Zero/Clear Memory
ts
*
i90.0
Zero/Clear Memory
*
ts
MIN MAX
or
00
PSIG
Zero/Clear Memory
ts
*
i92.0
MIN MAX
or
rlc
MAX
MAX min
i00.0
psig
i90.0
i92.0
Max
Zero/Clear Memory
*
Zero/Clear Memory
ts
ts
*
or
Continued >>
Backlight Time Selection
The upper display will indicate bL to
indicate display backlight setup.
Use the sand t buttons to select
AUTO: backlight enabled for 1 minute.
ON: backlight on when the gauge is on.
OFF: display backlight is disabled.
When the desired setting is displayed,
press and release the power button to
save your selection.
The gauge will restart and is ready to
use with your new configuration.
AST M
AST H
Zero/Clear Memory
Zero/Clear Memory
ts
*
*
- or -
ts
*
I
5
Zero/Clear Memory
AUTO
on
Zero/Clear Memory
auto
ts
* *
- or -
ts
off
*
L
p
L
p
Min/Max Setup
The lower display will indicate the cur-
rent MX/MN configuration.
Press the power button to keep it, or use
the sor tbuttons to select the desired
configuration.
MX/MN Capture both maximum and
minimum readings
--/MN Capture minimum readings only
MX/-- Capture maximum readings only
Press and release the power button to
save your selection and move to the next
parameter.
MX/--
--/MN
MX/--
MX/MN
Zero/Clear Memory
Zero/Clear Memory
ts
*
*
- or -
ts
*
Gauge Configuration—User or Factory
Upon successful passcode entry, the lower display will indicate
USER.
To reset the configuration to factory
defaults, press and release the sbut-
ton. The lower display will indicate
FCTRY.
Press and release the Power button to
restore the factory configuration and
restart the gauge. This does not affect
calibration.
For User configuration press and release
the tbutton to change the lower display
to USER. This allows you to configure
the gauge as described in the following
sections.
Press and release the center power but-
ton to continue with configuration.
Zero/Clear Memory
USER
ts
*
Zero/Clear Memory
*
USER
- or -
ts
*
FCTRY
User Factory
*
or
Auto Save Man
setting
MAN
Zero/Clear Memory
ts
*
rlc
ERROR INDICATIONS
Zero Error
Attempting to zero gauge reference mod-
els with more than approx. 3% of full-
scale pressure or vacuum applied will
result in an error zero condition. The
display will indicate Err 0.
If your intent was to zero the gauge, make sure to remove all
pressure from the gauge port.
Press the power button to reset the error.
Excessive Vacuum
Excessive vacuum applied to a pressure-
only gauge will display as -Err until the
vacuum is released. Note: A pressure-
only gauge will be damaged by excessive
vacuum.
Excessive Pressure
If 112.5% over range pressure is applied,
an out-of-range indication of 1 – – – or
1.–.–.– will be displayed depending on
model. Use gauge within the appropriate
pressure range to prevent damage.
0rrE
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- or -

Instructions CTP3B
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 4614 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 button press to make a change on
the display.
To make larger changes, press and hold the appropriate but-
ton. After about one second, the display will begin to change
continuously. 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 t
buttons.
Note: At this point you may re-zero the gauge without doing
any other calibration. Press and hold the Power button until the
display indicates - - - - then release the button to store the new
zero in non-volatile memory and restart the gauge.
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 alter-
nate between +MID and CAL. Adjust for a display indication
equal to 50% of full-scale pressure using the sand tbuttons.
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 readings at 0%, 25%, 50%, 75% and 100% of full scale.
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 t
buttons.
Note: At this point you may re-zero the gauge without doing
any other calibration. Press and hold the Power button until the
display indicates - - - - then release the button to store the new
zero in non-volatile memory and restart the gauge.
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 alter-
nate between +MID and CAL. Adjust for a display indication
equal to 50% of full-scale vacuum using the sand tbuttons.
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 readings at 0%, 25%, 50%, 75% and 100% of full scale.
Continued >>
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CECOMPDiv. of AABSOLUTEBSOLUTE PPROCESSROCESS IINSTRUMENTSNSTRUMENTS
CALIBRATION
Setup and 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 standards, but annual re-calibration is custom-
ary. Calibration should only be performed by qualified individu-
als using appropriate calibration 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 and
absolute gauges.
Install fresh batteries. 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
initially indicates _ _ _ _ with the first underscore blinking,
and with CALPC (calibration passcode) on the lower display.
Enter the 3510 passcode as described in the Configuration
Passcode section.
Calibration Mode
The gauge remains in the Calibration Mode until restarted
manually or power is removed. Features not related to calibra-
tion 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 engi-
neering units as well as percent (PCT).
For greatest accuracy, use the sand tbuttons to select engi-
neering units for calibration with highest number of display counts.
Press and release the Power button when the appropriate
engineering units are displayed.
Continued >>
Absolute Reference Gauges
Apply full vacuum to the gauge. The character display will
alternate between ZERO and CAL. Press the sand tbut-
tons to obtain a display indication of zero.
Note: At this point you may re-zero the gauge without doing
any other calibration. Press and hold the Power button until the
display indicates - - - - then release the button to store the new
zero in non-volatile memory and restart the gauge.
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 alter-
nate between +MID and CAL. Press the sand tbuttons to
obtain an indication equal to 50% of full-scale pressure.
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 readings at 0%, 25%, 50%, 75% and 100% of full scale.
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 to 15.00psi 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.
CHANGING PASSCODES
The factory default passcode 3510 may be changed to a differ-
ent value for configuration and/or calibration.
With the gauge off, press and hold the sbutton to view and/or
change the user configuration passcode. Then press the Power
button. Release all buttons when the display indicates CFG.
Calibration Passcode
With the gauge off, press and hold the tbutton to view and/
or change the user calibration passcode. Then press the Power
button. Release all buttons when the display indicates CAL.
Change Passcode Mode
Before the gauge enters the view or change passcode mode,
the display initially indicates _ _ _ _ with the first underscore
blinking, and with CFGPC or CALPC on the character display.
The gauge 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.
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 posi-
tion. 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 posi-
tion. 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 posi-
tion. 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.
Once the access code has been entered correctly, the display
will indicate the existing user-defined passcode with CFGPC or
CALPC on the character display.
Press the sor tbutton to select the first character of the
new passcode.
When the desired first character is displayed, press and release
the Power button to proceed to the next passcode character.
Repeat above until the entire passcode is complete.
To exit the User Defined Passcode change mode, press and
hold the Power button.
Release the button when the display indicates - - - - to restart
the gauge.
BATTERY REPLACEMENT
A low battery indication will be shown in the upper
left-hand corner of the display when the battery volt-
age 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
(opposite 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 hazardous 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 bat-
tery 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
reinstall the six screws.
Lift up the
battery holder