Ecom Instruments CP 440 User manual

Bedienungsanleitung
Instruction Manual
Manuel d’Instructions
CP 440

15
Contents Page
1. Introduction 16
1.1 CP 440 Display and Controls 16
2. Operation 17
2.1 Set-up and configuration 17
3. Supervisory Mode 18
4. Normal Operation 20
5. Specifications 21
6. Appendix 1: CP 440 Calibration Procedure 22
7. Available Ranges 26
8. Warranty and Liability 27

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1. Introduction
The CP 440 combines the high accuracy of digital electronics with the
convenience and ease of use of an analog test gauge. Accurate to
± 0.05% FS, the CP 440 can be used as a calibration reference, or in any
application where high accuracy pressure measurement is required.
Many user configurable functions have been designed into the CP 440 in-
cluding sampling rate, TARE, damping, auto shut off, and min-max. Once
the gauge is configured, settings can be locked and password protected
to prevent unauthorized changes to configuration.
Unpacking:
Check to see that your CP 440 has arrived intact. Batteries are factory
installed unless you have purchased the optional 24V powered version, in
which case batteries are not supplied or installed.
1.1 CP 440 Display and Controls
Pressure display
Selects an action in
configuration.
Also turns the back-light on/off
Turns Power on/off
Enters set-up and
configuration menus
Zeros the display,
Scrolls forward
through menu displays
Recalls min and max
readings. Scrolls
backwards through
menu displays
0 - 100% bar graph
Engineering Units

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2. Operation
Power: The standard CP 440 is supplied with 3 AA batteries installed.
If you purchased the optional 24Volt powered version, batteries are not
installed. Connect a 24V power supply to the terminal block on the rear of
the gauge, noting proper polarity.
Do not install batteries when external power will be used.
Push the power button momentarily to turn the unit on. Push it again to
turn it off.
2.1 Set-up and configuration:
Push the CONFIG button to access the user-settable functions on the
gauge. Each time the CONFIG button is pressed; the display advances to
the next function. Once a function has been set, press ENTER to exit the
configuration menu, or CONFIG to continue with further configuration. In
order, the configuration menu and operation is as follows:
1. Engineering Units set. The unit is shipped configured to display Psi.
By pressing the 6and 5(ZERO and MAX/MIN) keys you can scroll
forward and backwards through the 18 standard engineering units
plus a one custom unit/scale. When the desired unit is displayed,
press ENTER or CONFIG. Pressure will now be displayed in the chosen
engineering units.
See the Specifications section of this manual for a list of available
engineering units.
See the Supervisory Mode section for details on setting up custom
units.
2. Set Auto Off. The auto-shut off can be set in 1 minute increments from
1 to 30 minutes or “off” (continuous operation). The unit is shipped set
for 30 minutes. Use the 6and 5keys to set the desired interval. The
“off” setting is at the low end of the choices, below 1 minute.
3. Display battery voltage. Actual voltage and a percent of life bargraph
indicate battery condition

18
4. Display actual temperature. The CP 440 is temperature compensated,
this displays the temperature measured by the internal sensor.
The value can be set to degrees F or degrees C using the arrow keys.
5. Set damping. Choices are “on” and “off” set with the 6and 5keys.
Turning damping on will smooth readings from pulsating pressure
sources.
6. Set sample rate: This determines how often pressure is sampled and
the display is updated. Choices are 0.5, 1, 3, and 10 samples/second.
Note that 10/sec provides the fastest response time.
7. Set TARE. This allows you to set a constant offset value, which is then
subtracted from the measured pressure. For example if a TARE is set at
30 Psi, and the measured pressure is 37 Psi, the displayed value will
be 7 Psi. A pressure of 27 Psi would be displayed as –3 Psi.
The tare value is set manually with the 6and 5keys, and is based on
the engineering units and resolution selected for display. TARE value
can be set to the maximum range of the gauge.
The bar graph will always display the actual pressure based on the full
range of the gauge regardless of the tare setting. This is done for safe-
ty to insure that even with a “0” reading that pressure is being applied
to the gauge.
8. Function Lock: Access to each of the settable parameters above can
be turned “off” once set, to prevent unauthorized changes to configu-
ration. This is accomplished through a password protected “superviso-
ry mode”. Press ENTER to access the supervisory mode, or CONFIG to
return to normal operation.
3. Supervisory Mode
Press ENTER when “FUnC LOCK” is displayed, 0PWRD will be displayed
on the gauge. The password to enter supervisory mode is 101, set using
the 6and 5keys. Holding a key continuously will cause the display to
advance more quickly for faster setting. The password is factory set and
cannot be changed.

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1. Your CP 440 is shipped from the factory with all setting access
“unlocked” or available to be changed.
2. In supervisory mode each of the parameters can be locked or unlo-
cked using the 6and 5keys. Select LOC (lock) for those parameters
you do not want to be accessible, and UnLOC (unlock) for those can
be accessed.
3. In order, the functions that can be unlocked, locked or accessed are:
• Zero function (enable/disable)
• Set pressure units (enable/disable)
• Auto shutdown adjustment (enable/disable)
• Damping settings (enable/disable)
• Sample rate setting (enable/disable)
• Tare setting (enable/disable)
• Custom engineering units (set scale factor)
4. Use the CONFIG key to scroll through the above choices, and the 6
and 5keys to lock and unlock features. Press CONFIG to continue
scrolling through the parameters, pressing ENTER at any point saves
your settings and returns the gauge to normal operation.
When a function is “locked, it cannot be accessed or changed from its
current state. To change a locked function, enter the supervisory mode,
and unlock the function. Once it is changed, you may enter superviso-
ry mode to lock access again.
5. Setting a custom engineering unit or scale: The last menu choice in
supervisory mode is SET FACTR. This allows you to set a multiplier
factor from 0.001 to 100, creating a custom scale. The set factor will be
multiplied by the Psi measured, the result will be displayed.
For example: 40 Psi is the equivalent of 1000 g of product in a tank.
You want to display the product weight , using a 100 Psi gauge. By
setting a factor of 25, a 40 Psi pressure would display as 1000 (40 x
25). The engineering unit displayed on the CP 440 will be “Cust”.

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4. Normal Operation
Turning the backlight on and off: Press the ENTER button.
Zeroing the display: Press and hold the ZERO button.
MAX/MIN: The CP 440 stores minimum and maximum pressure values
in memory. Pressing the MAX/MIN button once will display the minimum
pressure from memory. Pressing the MAX/MIN button again will display
the maximum pressure from memory. After about 2 seconds, the gauge
returns to normal (live display) operation. To clear the MAX/MIN memory
registers, press and hold the MAX/MIN button for 2 or more seconds until
“CLr” is displayed.
The analog bar graph at the bottom of the display indicates the applied
pressure level relative to the full range of the gauge. Keep in mind that if a
TARE value has been programmed into the gauge, the displayed pressure
will not reflect the true pressure applied.
Changing the Batteries
Grasp the face ring on the CP 440, turn it approximately 1⁄4 turn coun-
terclockwise and remove. The face of the gauge can now be lifted to
expose the battery holder. Install three AA batteries noting proper polarity.
Reassemble the case making certain that the face is properly oriented.
If you purchased the optional 24 Volt powered version, the terminals for
power input are located on the rear of the gauge. To apply power simply
connect 24 volts to the rear terminal block taking care to observe proper
polarity.
WARNING
Gauges ordered with the external power option will not come
with batteries installed. Batteries MUST NOT be installed when
operating on external power.
Battery life
Battery life is about 1500 hours (60 days) of continuous use with the
backlight off. With intermittent use, batteries could last a year or more.
There is a low battery icon in the upper left of the display. It will appear
when battery level is low. Replace batteries per recommendations found
in the specifications section of this manual.

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RS-232 Interface
An RS-232 interface is standard on the CP 440. Serial communication
can be used for configuration, calibration, and to transfer measurement
data from the gauge.
5. Specifications
All specifications cover the temperature range from 0°C to +50°C, unless
otherwise noted.
Available Input Ranges
See page 26 for a table of available ranges in psi plus equivalent ranges
and resolution for all engineering units
Accuracy
Positive Pressure: ±0.05% FS
Vacuum: ±0.25% FS (500 psi gauge ranges and below)
For gauges with full scale ranges equal to, or less than 30 psi (2 bar),
vacuum operation is limited to -5psi (-350 mbar) for operating temperatu-
res above 30° C.
Over Pressure Protection:
Ranges from 15 psi to 500 psi: 3x input pressure range
1,000, 3,000, and 5,000 psi ranges: 2x input pressure range
10,000 psi: 1.5x input pressure range
Temperature Compensation
0°C to +50°C (32°F to +122°F) to rated accuracy
Standard Engineering Units
psi, bar, kg/cm2, inH2O (4°C, 20°C or 60°F), ftH2O (4°C, 20°C or 60°F),
cmH2O (4 °C and 20 °C), mH2O (4°C and 20°C), kPa, mbar, inHg, mmHg,
Torr
One custom unit (user programmable)
Media Compatibility
Liquids and gases compatible with 316 stainless steel

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Environmental
Operating Temperature -10 °C to +55 °C (14°F to 131°F)
Storage -20 °C to +70 °C (-4 °F to +158 °F)
Mechanical
Dimensions 4.5“ (diameter) x 2.2“ (depth) x 5“ (height)
Pressure Connection: 1⁄4” NPT Male
Housing: Stainless steel, meets NEMA 4/IP65
Display
5-1/2 Digits, 0.65“ (16.53 mm) high
20-Segment bar graph, 0 to 100%
Power
Battery three (3), size AA alkaline batteries, optional 24 VDC power.
Battery Life 1,500 hours without backlight
2,000 hours at slow sample rate
Low Battery Indicator icon is displayed near the end of battery life
Approvals
CE approved
6. Appendix 1: CP 440 Calibration Procedure
Overview
Calibration adjustment of the CP 440 is performed electronically ´via inter-
nal software with the case closed. There are no mechanical adjustments;
all calibration commands and adjustments are done via the keypad, using
the display to guide the user through the calibration process.
Eight calibration points are used in the adjustment program, working from
full scale to zero at pressures equaling 100%, 87.5%, 75%, 62.5%, 50%,
37.5%, 25%, 12.5%, and 0% of full scale plus vacuum.
Note: This is an ambient temperature calibration, and should be perfor-
med at an ambient temperature of 23°C ± 3°C (72° F ± 5° F). Calibration
outside this temperature range will invalidate the temperature compensa-
tion program in the CP 440.

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Calibration Interval
You should check performance of the unit at the interval required by your
calibration program. We recommend adjustment when measurement
deviates by more than 75% of the specified accuracy, or 0.04%
Test Equipment
Verification and calibration of the CP 440 requires pressure and/or vacu-
um standards able to produce and indicate pressures from vacuum to the
full-scale range of the unit under test. In order to maintain the specified
accuracy of the CP 440, standards should have a TUR of 4:1 or better.
Connections:
The PI uses a 1/4 NPT male connection in the pressure input port. Various
adapters may or may not be needed to connect to the pressure standard.
Always make sure the hose, tubing, and fittings etc have a rated working
pressure at or above the pressure of the unit. Also it is important that there
be no leaks when performing calibration; use Teflon tape where appropriate.
Entering Calibration Mode:
After you have made your connections, turn the power on while holding
the CONFIG key. Use the arrow keys to enter the password. The pass-
word is 101. If you have entered calibration mode correctly the display
should look as shown below. The pressure value displayed will be the
full-scale value of the gauge.
Procedure:
Screens shown in this manual represent the displays shown with a 500
psi Gauge. The CP 440 will prompt the technician for the appropriate
pressure at each calibration point.
Use the Pressure Standard to output 500.00 psi (100%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown in the illustration that follows.
500.00
PSI
CAL MODE

24
Use the Pressure Standard to output 437.50 psi (87.5%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 375.00 psi (75%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 312.50 psi (62.5%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 250.00 psi (50%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
437.50
PSI
CAL MODE
375.00
PSI
CAL MODE
312.50
PSI
CAL MODE
250.00
PSI
CAL MODE

25
Use the Pressure Standard to output 187.50 psi (37.5%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 125.00 psi (25%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 62.50 psi (12.5%). After the output
has stabilized, press the ENTER key to continue. As the unit takes rea-
dings, the screen will show -------. When the readings are complete the
screen should look as shown below.
Use the Pressure Standard to output 0.00 psi. After the output has
stabilized, press the ENTER key to continue. As the unit takes readings,
the screen will show -------. When the readings are complete the screen
should look as shown below.
187.50
PSI
CAL MODE
125.00
PSI
CAL MODE
62.50
PSI
CAL MODE
0.00
PSI
CAL MODE

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Use the Pressure Standard to output -12.00 psi. After the output has
stabilized, press the ENTER key to continue. As the unit takes readings,
the screen will show -------. When the readings are complete the unit will
reset and power up in normal mode.
7. Available Ranges and Resolution by Engineering Unit
psi Range 15 30 100 300 500 1000 3000 5000 10000
Engineering
Unit
psi 15.000 30.000 100.00 300.00 500.00 1000.0 3000.0 5000.0 10000
bar 1.0342 2.0684 6.8947 20.684 34.474 68.947 206.84 344.74 689.47
mbar 1034.2 2068.4 6894.8 20684 34474 68948 NA NA NA
kPa 103.42 206.84 689.48 2068.4 3447.4 6894.8 20684 34474 68948
kg/cm21.0546 2.1092 7.0307 21.092 35.153 70.307 210.92 351.53 703.07
cmH20@4°C 1054.6 2109.3 7030.9 21093 35154 70309 NA NA NA
cmH20@20°C 1056.5 2113.0 7043.4 21130 35217 70434 NA NA NA
mH20@4°C 10.546 21.093 70.309 210.93 351.54 703.09 2109.3 3515.4 7030.9
mH20@20°C 10.565 21.130 70.434 211.30 352.17 704.34 2113.0 3521.7 7043.4
inH20@4°C 415.21 830.42 2768.1 8304.2 13840 27681 83042 NA NA
inH20@20°C 415.95 831.89 2773.0 8318.9 13865 27730 83189 NA NA
inH20@60°F 415.61 831.23 2770.8 8312.3 13854 27708 83123 NA NA
mmHg@0°C 775.73 1551.5 5171.5 15515 25858 51715 NA NA NA
inHg@0°C 30.540 61.081 203.60 610.81 1018.0 2036.0 6108.1 10180 20360
ftH20@4°C 34.601 69.202 230.67 692.02 1153.4 2306.7 6920.2 11534 23067
ftH20@20°C 34.662 69.324 231.08 693.24 1155.4 2310.8 6932.4 11554 23108
ftH20@60°F 34.634 69.269 230.90 692.69 1154.5 2309.0 6926.9 11545 23090
Torr 775.73 1551.5 5171.5 15515 25858 51715 NA NA NA
-12.00
PSI
CAL MODE

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8. Warranty and Liability
Under the general terms and conditions of business, ecom instruments
GmbH offers a 2-year warranty for function and materials on this product
under the specified operating and maintenance conditions. Not covered
are all wearing parts (e.g. batteries, sensors, displays, lamps, etc.) as well
as calibrations.
This warranty does not extend to products that have been used impro-
perly, altered, neglected, damaged by accident or subjected to abnormal
operating conditions or improper handling. In the event of a warranty
claim, the faulty device should be sent in. We reserve the right to readju-
st, repair or replace the unit.
The above warranty terms represent the sole rights of the purchaser to
compensation and apply exclusively and in place of all other contractual
or statutory warranty obligations. ecom instruments GmbH does not
accept liability for specific, direct, indirect, incidental or consequential
damages or losses, including the loss of data, regardless of whether they
are caused by breach of warranty, lawful or unlawful actions, actions in
good faith or other actions.
If in certain countries the restriction of statutory warranty and the exclu-
sion or restriction of in-cidental or consequential damages is unlawful,
then it may be possible that the above restrictions and exclusions do not
apply for all purchasers. If any clause in these warranty terms should be
found to be invalid or unenforceable by a competent court, then such a
judgement shall not affect the validity or enforceability of any other clau-
se contained in these warranty terms.

ecom instruments GmbH
Industriestr.2
D-97959 Assamstadt
Tel.: [phone] / 42 24-0
Fax: [phone] / 42 24-90
E-Mail: [e-mail]
Internet: www.ecom-ex.com
5200 AL 01 A00 10/05 Änderungen vorbehalten! Subject to change without notice!