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
cecomp.com
1220 American Way Libertyville, IL 60048
800-942-0315
CECOMP
Div. of
A
A
BSOLUTE
BSOLUTE
P
P
ROCESS
ROCESS
I
I
NSTRUMENTS
NSTRUMENTS
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.
o
o
o
o
psig
0.0
Zero/Clear
Memory
*
hold
psig
0. I
Zero/Clear
Memory
*
t
s
t
s
F
F
O
Zero/Clear
Memory
hold
t
s
*
¼" NPT
2.88"
3.38" housing
3.67" with boot
0.75"
1.65"
X X X X X
Zero/Clear
Memory
X X X X X
88888
2
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
t
s
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.
X X X X X
88888
Zero/Clear
Memory
2
psig
200.0
full
psig
0.0
X X X X X
88888
2
scale
t
s
*
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
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 refur-
bishment.
4
Gauges must be operated within specified ambient tem-
perature 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 recom-
mended 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 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
inH
2
O
ftH
2
O
oz/in
2
mmH
2
O cmH
2
O
g/cm
2
kg/cm
2
atm
mbar
bar
kPa
MPa
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
0 to 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
