Cecomp CTP3B Manual
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Vacuum
CTP3B15PSIVAC
Vacuum/Pressure
CTP3B±15PSIG
CTP3B30V15PSIG
CTP3B15V100PSIG
CTP3B30V100PSIG
CTP3B15V200PSIG
CTP3B30V200PSIG
Pressure
CTP3B3PSIG
CTP3B5PSIG
CTP3B15PSIG
CTP3B30PSIG
CTP3B60PSIG
CTP3B100PSIG
CTP3B200PSIG
CTP3B300PSIG
CTP3B500PSIG
CTP3B1000PSIG
CTP3B2000PSIG
CTP3B3000PSIG
CTP3B5000PSIG
Absolute Reference
CTP3B15PSIA
CTP3B30PSIA
CTP3B100PSIA
Cecomp
®
Test + Battery Powered Digital Pressure Gauges, User Configurable
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:
Shipping:
9 ounces (approximately)
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
cecomp.com/plus
CTP3B
O
±0.1% Test Gauge Accuracy
O
Ruggedized Design
O
Red Rubber Boot Included
O
316L Stainless Steel Wetted Parts
O
Selectable Units and Auto Shutoff Times
O
White LED Display Backlight
O
Min/Max Memory
H H H H H H
H H H H H H
Made in USA
Range/Resolution Selectable Units
0 to 14.70 psig vacuum psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2 cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
Range/Resolution Selectable Units
–14.70 to 15.00 psig
–29.92 inHg to 15.00 psig
–14.7 to 100.0 psig
–29.9 inHg to 100.0 psig
–14.7 to 200.0 psig
–29.9 inHg to 200.0 psig
Range/Resolution
0 to 3.000 psig
0 to 5.000 psig
0 to 15.00 psig
0 to 30.00 psig
0 to 60.00 psig
0 to 100.0 psig
0 to 200.0 psig
0 to 300.0 psig
0 to 500.0 psig
0 to 1000 psig
0 to 2000 psig
0 to 3000 psig
0 to 5000 psig
Range/Resolution
15.00 to 0 psi absolute
30.00 to 0 psi absolute
100.0 to 0 psi absolute psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg/psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg/psi, inHg, torr, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa psi, inHg/psi, inHg, torr, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa psi, inHg, ftH2O, kg/cm2, atm, bar, MPa, kPa psi, inHg, ftH2O, kg/cm2, atm, bar, MPa, kPa psi, inHg, ftH2O, kg/cm2, atm, bar, MPa psi, inHg, ftH2O, kg/cm2, atm, bar, MPa psi, kg/cm2, atm, bar, MPa
Selectable Units psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, mmH2O, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, mmH2O, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, inH2O, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa psi, inHg, ftH2O, oz/in2, kg/cm2, atm, bar, MPa, kPa
Selectable Units psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa psi, inHg, torr, mmHg, inH2O, ftH2O, oz/in2, cmH2O, g/cm2, kg/cm2, atm, bar, mbar, MPa, kPa
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
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.
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 applications. 303SS body, 100 micron 304SS screen.
CECOMP
Div. of
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
1220 American Way Libertyville, IL 60048
800-942-0315 cecomp.com
© 02-21
Installation Precautions, Ranges and Engineering Units CTP3B
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.
psi
0 to 14.70 psig vac
–14.7 to 100.0 psig
–14.7 to 200.0 psig
0 to 3.000 psig
0 to 5.000 psig
0 to 15.00 psig
0 to 30.00 psig
0 to 60.00 psig
0 to 100.0 psig
0 to 200.0 psig
0 to 300.0 psig
0 to 500.0 psig
0 to 1000 psig
0 to 2000 psig
0 to 3000 psig
0 to 5000 psig
15.00 to 0 psi abs
30.00 to 0 psi abs
100.0 to 0 psi abs n/a n/a n/a n/a n/a n/a n/a n/a
Compound n/a
–29.9 inHg to 100.0 psi
–29.9 inHg to 200.0 psi inHg torr mmHg inH
2
O ftH
2
O oz/in 2
29.92 vac 760.0 vac 760.0 vac 406.8 vac 33.90 vac 235.1 vac
–29.92 to
30.54
–29.9 to
203.6
–29.9 to
407.2
–760.0 to
775.7
–760 to
5171 n/a
–760.0 to
775.7
–760 to
5171 n/a
–406.8 to
415.2
–407 to
2768
–407 to
5536
–33.90 to
34.61
–33.9 to
230.7
–33.9 to
461.4
–235.1 to
240.0
–235 to
1600
–235 to
3200 n/a n/a n/a n/a
6.108
10.18
30.54
61.08
155.1
258.6
775.7
1552
155.1
258.6
775.7
1552
83.0
138.4
415.2
830
6.921
11.54
34.61
69.21
48.00
80.0
240.0
480.0
n/a n/a n/a n/a
122.2
203.6
407.2
610.8
1018
2036
4072
6108 n/a
3103
5171 n/a n/a n/a n/a n/a n/a n/a
3103
5171 n/a n/a n/a n/a n/a n/a n/a
1661
2768
5536 n/a n/a n/a n/a n/a n/a
138.4
230.7
461.3
692.0
1153
2307
4614
6921 n/a n/a
30.54 abs 775.7 abs 775.7 abs 415.1 abs 34.61 abs 240.0 abs
61.08 abs 1552 abs 1552 abs 830 abs 69.21 abs 480.0 abs
203.6 abs 5172 abs 5172 abs 2767 abs 230.7 abs 1600 abs n/a n/a n/a n/a
960
1600
3200
4800 n/a n/a n/a n/a n/a n/a n/a n/a mmH
2
O cmH
2
O g/cm 2 n/a n/a n/a n/a kg/cm 2 atm mbar bar kPa MPa
1033 vac 1033 vac 1.033 vac 1.000 vac 1013 vac 1.013 vac 101.3 vac .1013 vac
–1033 to
1055
–1033 to
7031 n/a
–1033 to
1055
–1033 to
7031 n/a
–1.033 to
1.055
–1.033 to
7.031
–1.03 to
14.06
–1.000 to
1.021
–1.000 to
6.805
–1.00 to
13.61
–1013 to
1034
–1013 to
6895 n/a
–1.013 to
1.034
–1.013 to
6.895
–1.01 to
13.79
–101.3 to
103.4
–101.3 to
689.5
–101 to
1379
–.1013 to
.1034
–.1013 to
.6895
–.101 to
1.379
2109
3515 n/a n/a
210.9
351.5
1055
2109
210.9
351.5
1055
2109
.2109
.3515
1.055
2.109
.2041
.3402
1.021
2.041
206.8
344.7
1034
2068
.2068
.3447
1.034
2.068
20.68
34.47
103.4
206.8
n/a n/a
.1034
.2068
n/a n/a n/a n/a
4218
7031 n/a n/a n/a n/a n/a n/a n/a
4218
7031 n/a n/a n/a n/a n/a n/a n/a
4.218
7.031
14.06
21.09
35.15
70.31
140.6
210.9
351.5
4.083
6.805
13.61
20.41
34.02
68.05
136.1
204.1
340.2
4137
6895 n/a n/a n/a n/a n/a n/a n/a
4.137
6.895
13.79
20.68
34.47
68.95
137.9
206.8
344.7
413.7
689.5
1379
2068
3447
6895 n/a n/a n/a 34.47
1055 abs 1055 abs 1.055 abs 1.021 abs 1034 abs 1.034 abs 103.4 abs .1034 abs
2109 abs 2109 abs 2.109 abs 2.041 abs 2068 abs 2.068 abs 206.8 abs .2068 abs
7031 abs 7031 abs 7.031 abs 6.805 abs 6895 abs 6.895 abs 689.5 abs .6895 abs
.4137
.6895
1.379
2.068
3.447
6.895
13.79
20.68
Installation Precautions
4 Read these instructions before using the gauge.
Configuration may be easier before installation. Contact the factory for assistance.
4 These products do not contain user-serviceable parts, except batteries. Contact us for repairs, service, or refurbishment.
4 Gauges must be operated within specified ambient temperature ranges.
4 Permanent installations must be indoors only. Outdoor or wash down applications require installation in a NEMA 4X housing.
4 Use a pressure or vacuum range appropriate for the application.
4 Use fittings appropriate for the pressure range of the gauge.
4 Due to the hardness of 316 stainless steel, it is recommended that a thread sealant be used to ensure leak-free operation.
4 For contaminated media use an appropriate screen or filter to keep debris out of gauge port.
4 Remove system pressures before removing or installing gauge.
4 Install or remove gauge using a wrench on the hex fitting only. Do not attempt to turn gauge by forcing the housing.
4 Good 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 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 California 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.
Low battery symbol
4 digit display
Alphanumeric display
Zero display (gauge reference only)
Clear min/max, Up arrow for setup
Power button
Turn on backlight
Zero/Clear
88888 s
2
Memory
¼" NPT Display min/max readings
Down arrow for setup
3.38" housing
3.67" with boot
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.
88888
Zero/Clear
2
Memory s t
200.0
psig full scale
The actual pressure and units are displayed. The gauge is ready for use and readings are updated approximately 3 times per second.
88888 2
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.
0.0
psig
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 t
0.75"
2.88" 3.19"
With boot
2.0" 1.65"
Turn at hex fitting only
Zero the Display (Gauge Reference Only)
Absolute reference gauges do not use the zero feature.
0. I
psig
Zero/Clear
Be sure the gauge is in the normal operating mode. The gauge port must be open to normal atmospheric pressure with no pressure or vacuum applied.
s hold
Memory t
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.
o
Zero/Clear o o o
Memory s t
Occasional flashing of the minus sign with zero pressure/vacuum is normal.
The stored zero correction is erased when the gauge shuts off.
0.0
If Err 0 occurs make sure all pressure is psig removed and press the power button to reset the error.
Shutoff
The auto shutoff timer starts at power up and restarts whenever 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.
Zero/Clear
To shut the gauge off manually, press and hold the center power button (about s
3 seconds) until OFF is displayed and then release the button. The gauge shuts off.
O hold
F F
Memory t continued on next page >>
CECOMP
Div. of
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
1220 American Way Libertyville, IL 60048
800-942-0315 cecomp.com
Instructions CTP3B
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 captured. 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:
O Both maximum and minimum values (factory default)
O
O
O
The maximum value only
The minimum value only
Saved Min/Max values when the gauge powers down
Press and release the Memory button i00.0
until Max or Min is displayed.
Depending on your configuration the
MAX min
Zero/Clear or
Memory gauge may save both Max and Min, or either Max or Min.
s t
The gauge may be left in the maximum or minimum display mode if desired. The i92.0
Max reading will be continuously displayed, stored and updated.
The center power button may be pressed at any time to return to the normal display mode.
i90.0
psig
Zero/Clear Memory s t
Clear a Memory Location
For many applications it may be desirable to bring the system up to normal pressure and then clear the minimum or maximum value.
Zero/Clear s i90.0
Memory t
Press and release the Memory button until the value to be cleared is displayed.
i92.0
MIN MAX
Zero/Clear or
Memory
Press and hold the Zero/Clear button. s t
Release the button when clr is displayed. The reading for the indicated memory location will be cleared.
c
MAX l r
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.
MAX
0 0
Zero/Clear
0
PSIG
0
Memory s t
Press and release the Power button to exit the memory mode and return to live pressure readings.
ERROR INDICATIONS
Zero Error
Attempting to zero gauge reference models with more than approx. 3% of fullscale pressure or vacuum applied will result in an error zero condition. The display will indicate Err 0 .
E r r 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 pressureonly gauge will display as -Err until the vacuum is released. Note: A pressureonly 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.
E r
- or r
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.
Zero/Clear s With the gauge off, press and hold the s button.
Then press the center power button.
1 hold
Release all buttons when the display indicates CFG . The gauge firmware version is also displayed.
C F
2
G
Memory t firmware version
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. power up sequence
_ _ _
CFGPC
_
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 passcode characters.
Enter Configuration Passcode
Enter the passcode. 3510 is the factory default, but it is user-modifiable.
3 _ _ _
Zero/Clear
CFGPC
Memory
Use the s or t buttons to set the leftmost digit to 3.
s
- or t
Press and release the Power button to index to the next position.
The 3 will remain, and the second position will be blinking.
3 _ _ _
Zero/Clear
CFGPC
Memory s t
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.
3 5 _
CFGPC
_
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 proceed with configuration. s
3 5 I
CFGPC
_
3 5 I 0
Zero/Clear
CFGPC
Memory t
Note: If an incorrect passcode is entered, the gauge will return to the start of the passcode entry sequence.
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 s button. The lower display will indicate
FCTRY.
USER
FCTRY
Zero/Clear Memory
Press and release the Power button to restore the factory configuration and restart the gauge. This does not affect calibration. s
User
- or t
Factory
For User configuration press and release the t button 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 button to continue with configuration.
Zero/Clear
USER
Memory s t
Continued >>
Min/Max Setup
The lower display will indicate the current MX/MN configuration.
Press the power button to keep it, or use the s or t buttons to select the desired configuration.
MX/MN Capture both maximum and minimum readings
--/MN
MX/--
Zero/Clear
MX/MN
Memory s
- or t
--/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.
Zero/Clear
MX/-s
Memory t
Min/Max Memory Retention
The upper display indicates clr and the lower display will indicate the current setting for min/max memory. Press: c l
Zero/Clear
Auto man r
Memory s t Power button: Keep setting s button: Select AUTO and automatically clear the maximum and/or minimum readings when the gauge is shuts off. or or
Auto Save Man
setting t button: Select MAN and retain the maximum and/or minimum readings in memory after the gauge is shut off. The readings can be cleared manually.
c l
MAN r
Zero/Clear Memory Press and release the power button to save your selection and move to the next parameter.
s t
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.
Zero/Clear
PSIG s
- or -
Engineering units are shown in the lower display.
Memory t
Use the s and t buttons to navigate through the list of engineering units.
Available engineering units depend on the sensor range.
Zero/Clear
INHG s
When the desired units are displayed, press and release the Power button to save your selection and move to the next parameter.
Memory t
Auto Shutoff Time Selection
The auto shutoff time is displayed on the upper display. The lower display
Zero/Clear will indicate AST M for minutes or AST
H for hours. s
AST M
Memory t
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
- or -
5
I timer. Use the Power button to shut the gauge off.
Zero/Clear
AST H
Memory s t
When the desired time is displayed press and release the Power button to save your selection and move to the next parameter.
Backlight Time Selection
The upper display will indicate bL to indicate display backlight setup.
p
L
Use the s and t buttons to select
AUTO: backlight enabled for 1 minute.
Zero/Clear s off
Memory t
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.
Zero/Clear s
- or p
L auto
Memory t
CECOMP
Div. of
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
1220 American Way Libertyville, IL 60048
800-942-0315 cecomp.com
Instructions CTP3B
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
(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 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 reinstall the six screws.
Lift up the battery holder
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 customary. Calibration should only be performed by qualified individuals 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 t button, 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 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 engineering units as well as percent (PCT).
For greatest accuracy, use the s and t buttons to select engineering units for calibration with highest number of display counts.
Press and release the Power button when the appropriate engineering units are displayed.
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CECOMP
Div. of
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
Sensor
3 PSI
5 PSI
15 PSI
30 PSI
50 PSI
60 PSI
100 PSI
200 PSI
300 PSI
500 PSI
1000 PSI
2000 PSI
3000 PSI
5000 PSI
Suggested units for calibration
6.920 FTH2O
5.000 PSI
775.7 MMHG or TORR
61.08 INHG
50.00 PSI
60.00 PSI
7.031 KG/CM2
407.2 INHG
610.8 INHG
3447 KPA
6895 KPA
4614 FTH2O
6920 FTH2O
5000 PSI
The display will then indicate the currently applied pressure in the engineering units selected for calibration.
s and t Button Operation
Each time one of the s or t buttons 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 button. 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 s and 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 s and t buttons.
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 s and t buttons.
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 s and 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 s and t buttons.
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 s and t buttons.
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.
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800-942-0315
Absolute Reference Gauges
Apply full vacuum to the gauge. The character display will alternate between ZERO and CAL . Press the s and t buttons 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 s and t buttons 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 s and t buttons 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 s and t buttons.
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 s and t buttons.
CHANGING PASSCODES
The factory default passcode 3510 may be changed to a different value for configuration and/or calibration.
With the gauge off, press and hold the s button 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 t button 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 s and t buttons 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 s and t buttons 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 s and t buttons 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 s and t buttons 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 s or t button 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.
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