GE
Sensing
Druck DPI 610/615
Portable Pressure Calibrator Series
User manual - K415
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i K415 Issue No. 1
Safety
The manufacturer has designed this equipment to be safe when operated using the
procedures detailed in this manual. Do not use this equipment for any other purpose
than that stated.
This publication contains operating and safety instructions that must be followed to
ensure safe operation and to maintain the equipment in a safe condition. The safety
instructions are either warnings or cautions issued to protect the user and the equipment
from injury or damage.
Use suitably qualified * technicians and good engineering practice for all procedures in
this publication.
Pressure
Do not apply pressures greater than the safe working pressure to this equipment.
Maintenance
The equipment must be maintained using the procedures in this publication. Further
manufacturer’s procedures should be carried out by authorized service agents or the
manufacturer’s service departments.
www.gesensing.com
For technical advice contact the manufacturer.
* A qualified technician must have the necessary technical knowledge,
documentation, special test equipment and tools to carry out the required work on
this equipment.
Symbols
This equipment meets the requirements of all relevant European safety
directives. The equipment carries the CE mark.
This symbol, on the instrument , indicates that the user should refer to
the user manual. This symbol, in this manual, indicates a hazardous
operation.
This symbol, on the instrument , indicates do not throw-away in
domestic bin, hazardous material, dispose correctly in accordance with
local regulations.
K415 Issue No. 1 ii
Specification
Safe working pressure
20 bar range (300 psi) 1.75 x full-scale
350 bar range (5000 psi) 1.2 x full-scale
400 bar range (6000 psi) 1.5 x full-scale
All other ranges 2 x full-scale
Accuracy
Combined non-linearity, hysteresis and repeatability
±70 mbar range (2 inHg) 0.05% F.S.
up to ±150 mbar (4.4 inHg) 0.05% span
200 mbar to 20 bar (3 psi to 300 psi) [Calibrator]): 0.025% F.S.
35 bar to 700 bar (500 psi to 10000 psi) [Indicator] 0.025% F.S.
70 bar to 400 bar (1000 psi to 6000 psi) [Hydraulic] 0.025% F.S.
Pressure Ranges
Refer to the pressure range matrix in the data sheet.
Temperature Effects
±0.004% of reading/°C (averaged over -10° to +40°C w.r.t. 20°C)
±0.002% of reading/°F (averaged over +14° to 104°F w.r.t. 68°F)
Power supply
Batteries 6 x 1.5 V C cells, alkaline (up to 60 hours nominal use at 20°C)
Rechargeable NiCad battery pack (20 hours nominal use) supplied with charger/
adaptor, supplies power to instrument while charging batteries.
Voltage Inputs
Range: ±50V
Accuracy ±0.05% rdg, ±0.004% F.S.
Resolution 100µV max
Voltage Outputs
Range: ±10V
Accuracy ±0.1%
Load 10mA
Range: ±24V
Accuracy ±5%
Load 26mA
Current Inputs
Range: ±55mA
Accuracy ±0.05% rdg, ±0.004% F.S.
Resolution 1µA max
Current Output
Range: 24mA
Accuracy ±0.05% rdg, ±0.01% F.S.
Resolution 1µA max
iii K415 Issue No. 1
Display
Size: 60 x 60 mm (2.36” x 2.36”) LCD Graphics
Reading ±99999, update rate 2 readings/sec
Environment
Operating Temperature: -10°C to 50°C (+14°F to 122°F)
Calibrated Temperature: -10°C to 40°C (+14°F to 104°F)
Storage Temperature: -20°C to 60°C (-4°F to 140°F)
Calibration Temperature: 21°C ±2°C (70°F ±4°F)
Sealing
Physical
Size: 300 x 170 x 140 mm (11.8” x 6.7” x 5.5”)
Weight: 3 kg (6.6lb)
Specification (contd.)
Sealed to IP54 (NEMA 4)
K415 Issue No. 1 iv
Introduction
General
Description of Procedures 1
Summary of Functions
Using the Guide 2
Getting Started
Fitting Batteries 7
Switching On 7
Change Pressure Units 8
Voltage and Current Measurement 8
Typical Calibration Set-up (Pressure to Voltage) 9
Zero Display Reading 9
OPERATOR CONTROLS 3
DISPLAY 3
HARD KEY FUNCTIONS 4
SOFT KEYS 5
CURSOR KEYS 5
ELECTRICAL CONNECTIONS 6
Task Selection
Task Key 10
Using Task Functions 10
Set Units 10
Set 24 Volts 10
Cal Mode (DPI 615 versions only) 11
Basic Mode (Task BASIC) 11
Taking Measurements
Pressure Transmitter (P-I) Task 12
Voltage Output Pressure Transmitter (P-V) Task 12
Pressure Converter (P-P) Task 13
Current to Pressure Converter (I-P) Task 14
Pressure Switch Test (P-Switch) Task 14
Pressure Switch Testing with Contact Resistance Measurement 15
Pressure to Display (P-Display) Task 16
Leak Test (Leak Test) Task 17
Transmitter Simulator (TX SIM) Task 18
Relief Valve Test (REL VALVE) Task 19
v K415 Issue No. 1
Advanced Task
Electrical Outputs (Loop Power) 25
General 20
Select Input 20
Ambient Temperature Measurement 20
Process Functions 21
Tare Process Function 22
Min/Max Process Function 23
Filter Process Function 23
Flow Function 24
% Span 24
Select Output 25
mA Step 26
mA Ramp 27
mA Value 28
24 Volt 28
Define New Task 29
Clear Task 29
Memory Operations
Saving Display or Data Log 30
Store Operations (Screen Snapshots) 30
Recalling Stored Data (Screen Snapshots) 30
Datalog Operations 31
Using Set-up
General 37
Store Mode 37
Contrast 37
Settings - Select Set-up Option 38
Auto Log (Timer) 31
Manual Logging 31
Recall Data Log Files 32
Uploading Data Log Files 33
Delete Data Log and Procedure Files 33
Downloading Procedure Files (DPI 615 versions only) 34
Running Procedure Files (DPI 615 versions only) 35
Recalling Data Files 36
Units 38
Define Special Units 38
Language 39
RS232 39
Powerdown 40
K415 Issue No. 1 vi
Calibration 40
Date and Time (Real Time Clock) 41
Date Format 41
Set Date 41
Set Time 41
Backlight 42
Calibration
General 43
Calibration Check 43
Calibration Adjustment 43
General Procedures 44
Using The Calibration Menu 45
Change PIN 45
Pressure 46
Voltage Input Range (5 Volts) 47
Voltage Input Range (50 Volts) 49
Current Input Range (55 mA) 51
Current Output Range (24 mA) 53
Temperature 56
External Pressure Range 57
Add External Sensor 58
Hydraulic Calibrator Versions
Introduction 61
Safety Instructions 62
Preparation for Use 62
Bleeding the System 63
Draining the Hydraulic Fluid 64
Flushing, Replenishing or Changing the Hydraulic Fluid 65
Low Pressure Calibrator Versions
Introduction 69
Preparation for Use Low Volume Systems 70
Method of Testing with Low Volume Systems 70
Preparation for Use Larger Volume Systems 72
Method of Testing with Larger Volume Systems 74
Calibration 75
Calibrate Internal Pressure Range 75
Appendix 1 - Datalog File Example
Typical Uploaded Datalog File (DPI 610) 79
Typical Uploaded Procedure Data File (DPI 615) 80
vii K415 Issue No. 1
K415 Issue No. 1 viii
+
-
INTRODUCTION Summary of Functions
General
The versions of the DPI 610 and DPI 615 instruments are: pneumatic indicator, pneumatic
calibrator, hydraulic calibrator and low pressure pneumatic calibrator. All instruments
measure and display pneumatic and hydraulic pressure applied to the test port or to an
externally connected pressure sensor. Pressure measurement can be absolute, gauge
and sealed gauge and in ranges from 2.5 mbar to 700 bar (1.0 inH
The calibrator versions of this instrument contain pneumatic or hydraulic pressure
generation components to produce pneumatic pressure ranges between -1 to 20 bar
(-14.5 psi to 300 psi) and hydraulic pressure ranges up to 400 bar (6000 psi).
The electrical connections, on the front of the instrument, enable the instrument to
measure ±50 volts d.c. and ±55 mA and produce 10 volts d.c. or 24 volts d.c. and a
maximum of 24 mA. An integral sensor provides measurement of ambient temperature.
Additional sensors (option B1) connect to an external connector and extend the pressure
measurement range and include differential pressure measurement. The instrument has
an RS232 connector to enable uploading of test data to a compatible documenting
system. The DPI 615 has the ability to download, from a PC, pre-defined calibration and
test routines. Six alkaline C size batteries or (option A) rechargeable batteries with a
charger/adaptor, power the instrument.
Important Notice
Zinc-carbon and zinc-chloride cells should NOT be used in this instrument.
Use only the battery types as shown in the table on page 7.
O to 10000 psi).
2
Description of Procedures
In the procedures outlined in this user guide, hard (fixed function) and soft (variable
function) key operations are shown in bold type (e.g.) TASK and F1. These statements
mean press the TASK key and press the F1 key. Soft key operations can be allocated to
both the F1 and F2 keys. Where a specific soft function is referred to it is written in bold
italics (e.g.) PROCESS.
This instrument has a number of operating modes that are described in a simplified form
in the following sections. Diagrams accompanying the procedures give typical selection
sequences and shaded controls indicate that this control key should be pressed in the
appropriate sequence. Diagrams should be read from left to right, top to bottom where
appropriate. A shaded display soft box indicates that the function key immediately
below that soft box should be pressed (either F1 for the left hand soft box or F2 for the
right).
FCT.: STANDARD
COURANT
UNITES
V
bar
CHOIX UNITES
DE PRESSION
inHg
bar
hPa
Pa
SELECTIONNER
UNITES
In the above diagram the following key sequence is indicated.
(a) Press the F2 key (the key immediately below the
(b) Use the
shaded, use all these keys to select or enter data).
Up
and
Down
cursor keys (only) to select the required option. (If all keys
PRESSURE UNITS
soft box).
(c) Press the ENTER key.
1 K415 Issue No. 1
INTRODUCTION Summary of Functions
Using this guide
The following key symbols are used in the procedure diagrams that follow:
SELECT VALUE
Shaded cursor keys indicate that a combination of these four keys, Up,
Down, Left and Right should be used to (e.g.) enter an alpha numeric
value or to select a function.
Indicates the ENTER key. Used to confirm an operation or a selection.
Shading indicates key operation.
Exit key, used to clear current menu selection and return to next menu
level above current level. Used as an escape key from current operation.
Shading indicates key operation.
Hardkey (total 7). Legend beside key symbol indicates function. Shading
indicates key operation.
Maximum Instrument Ratings
The following table shows the maximum measurement input ratings of the instrument
that should not be exceeded.
PRESSURE 120% FULL SCALE
VOLTAGE 50 V d.c.
CURRENT 55 mA d.c.
Note 1: The display flashes if the input pressure, voltage or current overrange.
Note 2: Max applied voltage for external loop supply = 30V dc (see page 8).
K415 Issue No. 1 2
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INTRODUCTION Summary of Functions
OPERATOR CONTROLS (Figure 1 and 2)
These divide into two groups, the operator/display controls (Figure 1) and the pressure/
vacuum generation components (Figure 2). The operator controls and a typical display,
common to all instrument versions, is shown below.
1
FCT.: STANDARD
V
bar
COURANT
UNITES
PRESSION
F2F1
2
3
4
5
8
7
6
1 Display 2 Electrical Input Sockets 3 Electrical Output Sockets 4 Cursor
5 Enter Key 6 On/Off Key 7 Function (soft) Keys 8 Hard Keys
Figure 1 - DPI 610/615 Key-pad
Display
The display section of the instrument basically divides into four distinct sections. The two
main sections of the display are used to display a input and an output. The remaining
sections show the status display area and define the soft key functions. A typical display
is shown below:
Status display
Input
Output display
Soft boxes
Ligne Etat
Affichage Measurand
(INPUT)
Affichage Source
(OUTPUT)
Cases Programmables
FCT.: STANDARD
COURANT
V
bar
UNITES
PRESSION
3 K415 Issue No. 1
INTRODUCTION Summary of Functions
HARD KEY FUNCTIONS (Figure 1)
Key Function
I/O
SETUP*
ZERO
INPUT*
TASK
OUTPUT*
This key is used to turn the instrument ON and OFF. 7
The
SETUP
key provides access to the instrument’s general
configuration parameters that are set up to certain default
parameters on delivery.
The
ZERO
key can be used to zero either the selected input or output
display, if the display reading is within 5% of zero. Attempts to zero a
larger offset result in an error message,
The
INPUT
key is used to select the input parameter to be displayed. 20, 21
The
TASK
key is used as a means of rapidly configuring the instrument
for a number of different types of external device calibration. There
are twenty task configurations available, eleven of which are preprogrammed and nine are user definable
The
OUTPUT
key is used to select output parameter to be displayed. 25-28
Zero too large.
Page
reference
37
9
10
STORE*
RECALL*
ENTER
EXIT
Depending upon how the instrument’s
is used either to store up to 20 display screens (in
to manually log a screen in
This key is used to recall a previously stored screen to the display.
Depending on the
either the snapshot of a previously stored screen or datalog file. In
STORE
mode, selection displays the last screen stored. By using the
cursor keys, the operator can scroll either forward or back through
memory locations.
The
ENTER
key is used either to enter data (accept entered data), or, in
conjunction with the soft keys, to accept a given selection.
The
EXIT
key operates in conjunction with all the other hard and soft
keys to exit from the current screen or menu level, to the level
immediately preceding it. To quit completely from any menu level,
press
EXIT
until the
STORE
MEASURE/SOURCE
DATALOG
mode set-up, operation of this key recalls
STORE
mode.
screen is displayed.
* These key functions are not available in BASIC mode
mode is setup, this key
SNAPSHOT
mode), or
30-36
30, 32-36
2
2
K415 Issue No. 1 4
INTRODUCTION Summary of Functions
SOFT KEYS (Figure 1)
Three soft keys, designated F1, EXIT and F2, are situated immediately below the display
as shown below. These keys have their function allocated by the instrument software
which is indicated in the bottom of the display (Voltage for F1 and Units for F2 in this
example). They are used to select menu (program) options and are fully described under
the appropriate section headings.
CURSOR KEYS (Figure 1)
The cursor keys consist of a block of four keys, designated up , down , left and
right . In programs where options need to be selected from a list, (e.g.) the TASK
selection program, the up and down cursor keys are used to highlight one of the
options, from which it can be selected by the ENTER key. In TAS K mode, where more
than one page of options are provided, the left and right cursor keys will switch
between pages.
2
3
5
1
12
7
8
9
11
1 Test port, connect to unit under test 2 Hard keys
3 Cover (external interfaces) 4 Electrical inputs
5 Electrical outputs 6 Cursor keys
7 Function (soft) keys 8 Release valve (releases pressure through 9)
9 Vent port 10 Select positive or negative pressure
11 Pump 12 Fine pressure adjuster
10
Figure 2 - DPI 610/615 Calibrator Controls
4
5
6
5 K415 Issue No. 1
INTRODUCTION Summary of Functions
ELECTRICAL CONNECTIONS
1
1 Cover, closed when
not using connectors
2 External transducer
3 RS232 connector
4Temperature sensor
2
5DC power input
3
4
5
Figure 3 - Electrical System Connections
Measurement inputs and Source outputs are made via the control panel sockets as
shown below.
12
FCT. : STANDARD
INPUTS
V
OUTPUTS
bar
COURANT
UNITES
PRESSION
F2F1
1 Status display 2 Input display 3 Electrical input sockets
4 Electrical output sockets 5 Output display
Figure 4 - Electrical Measurement Inputs/Outputs
3
4
5
K415 Issue No. 1 6
Getting Started
Fitting Batteries
1 Cover fixing screws.
2 Rechargeable NiCad pack Part no.
191-126
3 Six alkaline C-cells Type no. LR14.
1
2
3
Caution: Old batteries can leak and cause corrosion. Never leave
discharged batteries in the instrument.
Note: After fitting a rechargeable NiCad battery pack the display may show the battery
low indication caused by the battery pack not being fully charged. Use the power
adaptor/charger to fully charge the pack.
Switching On
Press the I/O switch on the front panel and proceed as follows.
The first time the instrument powers up, it will be in BASIC mode with the main screen
displaying voltage in the input display area and pressure in the output display area. To
switch to CURRENT as input, press F1 as shown. Similarly, F1 to return to VOLTAGE.
Note: No other keys are active in this mode and the instrument can only be reconfigured
by pressing the TASK key and selecting another mode.
7 K415 Issue No. 1
+
-
Getting Started
Change Pressure Units
To change the pressure units proceed as follows. If the four units displayed are not the
units required, press TASK and select any task, other than BASIC, press SETUP and
proceed as detailed on page 37. To return to BASIC mode, press TASK and select BASIC.
FCT.: STANDARD
V
CHOIX UNITES
DE PRESSION
inHg
bar
hPa
Pa
SELECTIONNER
UNITES
COURANT
In BASIC mode, the instrument is configured to carry out basic Pressure to Voltage (P to
V) or Pressure to Current (P to I) tests, a typical test procedure follows.
Voltage and Current Measurement
Connect the electrical input sockets as follows for voltage and current measurements.
Use the test leads provided and DO NOT push bare wires into the sockets.
Note: Maximum applied voltage = 50V dc,. Maximum input current = 55mA dc
max 50V
CAT II
+
V
Vin
-
mA in
mA Sink
mA out 10V out
24V out
Xmtr
UNITES
55mA
max
max 50V
CAT II
Vin
mA in
mA Sink
mA out 10V out
24V out
Xmtr
55mA
max
max 50V
CAT II
Vin
mA in
mA Sink
mA out 10V out
24V out
Xmtr
55mA
max
bar
-
+
Note: Maximum applied voltage for external loop supply = 30V dc
K415 Issue No. 1 8
Getting Started
Typical Calibration Set-up (Pressure to Voltage)
Connect a device under test to the instrument as shown below:
A
B
DPI 615
TASK: BASIC
-
P
+
V
-+
+
C
-
CURRENT
PRESSURE
UNITS
F2F1
V
bar
A - External pressure source (indicator instruments only) B - Pressure regulator
C - Excitation 10V
General procedure
• Use the hand-pump to pressurize the system to the required level as indicated on the
display. Allow the display to settle and screw the volume adjuster in or out as a fine
adjustment to the required pressure. Record the input (e.g.) Voltage, reading at each
applied pressure.
Zero Display Reading
Both the input and output readings can be set to zero using the ZERO key and if the
displayed reading is within 5% of zero. To zero either the INPUT or OUTPUT displays,
proceed as follows:
FCT.: STANDARD FCT.: STANDARD
ZERO
V
V
ZERO
ZERO
ENTRÉE
FCT.: STANDARD FCT.: STANDARD
ZERO
SORTIE
bar
TENSION A ZERO ?
OUI
V
ZERO
ENTRÉE
ZERO
SORTIE
bar
CAPTEUR INTERNE A ZERO ?
OUI
9 K415 Issue No. 1
bar
NON
V
bar
NON
Task Selection
TASK key
The TASK key is used to set-up the instrument for a number of specific types of test.
There are two modes BASIC and ADVANCED and nine other specific types of test that
automatically configure the instrument on selection from the TASK menu. The tasks
available under the TASK menu are held on three pages shown below. To select a task
from the menu, press the TASK key, position the cursor over the required task and press
the ENTER key as shown below. Use the right/left cursor keys to switch between pages.
Courant (Page 2) (Page 3)
FONCTIONS
STANDARD
P-I
P-P
P-V
I-P
FONCTIONS
P - VALEUR
P - PRESSOS
TESTFUITE
TRANSM
SOUPAPE
FONCTIONS
CONFIG.
UTILISATEUR
Using Task Functions
Specific tasks are selected as shown above. The following diagrams show how to
connect the unit under test (UUT) for each task selectable under the TASK menu.
Input and output units, where applicable, can be selected by pressing either the INPUT or
OUTPUT keys as shown below. The output key also provides the facility of turning the 24V
output supply ON and OFF. When not in use, the 24V supply output should be turned OFF
to conserve battery power.
Set Units
OUTPUT
SELECTIONNER
FONCTION
UNITES
24 VOLT
OFF
SELECTIONNER
FONCTION
CHOIX UNITES
DE PRESSION
inHg
bar
hPa
Pa
ON
SELECTIONNER
UNITES
Note: If the four units displayed are not the units required, press SETUP, select SETTINGS
and refer to page 38.
Set 24 Volts
SELECTIONNER
FONCTION
OUTPUT
UNITES
24 VOLT
K415 Issue No. 1 10
OFF
SELECTIONNER
FONCTION
SELECTIONNER
FONCTION
UNITES
24 VOLT
SELECTIONNER
MARCHE/ARRET
ON
ON
Task Selection
Cal mode (DPI 615 versions only)
Cal mode, which is available in tasks P-I, P-P, P-V, P-P, P-DISPLAY and P-SWITCH, provides
a method of setting-up test parameters manually. Downloaded test procedures can also
automatically set-up and turn on the Cal Mode function. The method of turning on and
setting-up Cal Mode is shown below for a P-I task. The method is similar for all the other
tasks available in Cal Mode.
FCT.: P-I
ENREG DONNEES
24V OFF 24V OFF
SELECTIONNER
VALEUR
FCT.: P-I
ENREG DONNEES
COURANT
PRESSION INT
RENTRER EN
MODE CALIB.
SORTIE LINEAIRE
MAX. ERROR
TYPE D'ERREUR
CHANGER
VALEUR
%ECH.
% ECH. REFUSE
SORTIR DU
MODE CALIB.
Pressing the F1 key (TURN ON CAL MODE), provides the set-up screen for the CAL mode.
Initially, the cursor is placed in the UUT SPAN field to allow the required span range to be
entered. The corresponding values for the UUT output parameter (current) are then set,
followed by the maximum error value and error type (% rdg or % span). When all test
parameters have been set-up, the screen changes to display the input and output and
the test results. The test result can only be displayed to within a range of ±9.99%. If the
test result is outside this range, either the left pointing (-ve error) or right pointing (+ve
error) chevrons are displayed. Within this error band, the actual tolerance value is
displayed. Test results can either be stored as snapshots or logged as datalog files,
depending upon how the instrument has been set-up.
Basic Mode (Task BASIC)
This instrument powers up in this mode the first time that it is used. To select BASIC from
any other task, press the TASK key and select BASIC and press the ENTER key. BASIC
mode is fully described in the Getting Started, section (see page 7).
11 K415 Issue No. 1
Taking Measurements
Pressure Transmitter (P-I) Task
Select the P-I task from the task menu and connect the Unit Under Test (UUT) to the
calibrator as shown below.
mA
bar
C
P
+ (24V)
I
-
A
B
DPI 615
FCT. : P-I 24V OFF
MODE ENREG. RAPIDE
F2F1
A - External pressure source (indicator instruments only) B - Pressure regulator
C - Pressure to current 24V device
• If required, select the output units as described on page 10.
• If applicable, turn on Cal Mode and set-up test parameters as detailed on page 11.
Voltage Output Pressure Transmitter (P-V) Task
Select the P-V task from the task menu and connect the UUT to the calibrator as shown
below. Voltage output transducers with a 10 V supply and outputs of ±10 V can be
calibrated using the 10V output sockets (supply) and the transducer output connected to
a voltmeter (refer to Method on page 13 for a test procedure).
A
P
-
+
V
-+
B
DPI 615
TASK: BASIC
+
-
C
CURRENT
PRESSURE
UNITS
F2F1
V
bar
A - External pressure source (indicator instruments only) B - Pressure regulator
C - Excitation 10V
• If required, select the output units as described on page 10.
• If applicable, turn on Cal Mode and set-up test parameters as detailed on page 11.
K415 Issue No. 1 12
Taking Measurements
Pressure Converter (Pressure to Pressure) Task
Select the P-P task from the task menu and connect the UUT to the calibrator as shown
below. Testing a converter requires one pressure to be applied to the unit under test
(UUT) and another (converter output) to be measured. The additional measurement is
provided by the external transducer option.
Method
• Connect the UUT to the calibrator and plug the external transducer into the
calibrator as shown below.
C
A
D
B
E
A - External pressure source (indicator instruments only)
B - Pressure regulator C - External pressure supply
D - Pressure to pressure device E - External transducer
• Press the TASK key and select the P-P task. Providing the external transducer has
been calibrated and its parameters stored in the calibrator, the display shows
External pressure in the input window and calibrator Output pressure in the output
window. If an error message “NO SENSOR OR CAL INVALID” is displayed, this
indicates that the external transducer has not been entered and/or calibrated with
the calibrator. Refer to page 45 for details of adding an external transducer. If an
external transducer change is made, switch the calibrator off and then on to load
new transducer data.
• If required, select the input and output units as described on page 10.
• If applicable, turn on Cal Mode and set-up test parameters as detailed on page 11.
Note: Match pressure ranges to give required accuracy and avoid overpressure. If
external pressure is required as the output and internal pressure the input, use
ADVANCED mode for this set-up.
13 K415 Issue No. 1
Taking Measurements
Current to Pressure Converter (I-P) Task
DPI 615
FCT. : I-P 24V OFF
MODE ENREG. RAPIDE
A
+ (24V)
P
I
B
-
SORTIE
NOUV VAL
bar
OK
mA
F2F1
A - External pressure supply B - Pressure to current device (24V)
•Use the up and down cursor keys to adjust the loop current to the required
value. Alternatively, press ENTER and use cursor keys to enter a finite value. Cursor
keys can then be used to nudge the output either up or down. If required, change
pressure units with INPUT key.
Pressure Switch Test (P-SWITCH) Task
A
C
B
DPI 615
FCT.: P-PRESSOS 24V OFF
MODE ENREG.RAPIDE
ETATCONTACT
A - External pressure source (indicator instruments only)
B - Pressure regulator C - Pressure switch under test
• Contact state will be shown on display. When contacts close, buzzer sounds.
• To run switch test, close vent valve and press the RUN (F1) key.
• Using the hand-pump, increase the applied pressure to just below the switch
operating point. Screw the volume adjuster in until the switch operates (the display
then shows the operating pressure of the switch).
• Reduce pressure until the switch releases (indicated by the switch symbol). The
display then shows the release pressure and the hysteresis value.
K415 Issue No. 1 14
DEMARRER
bar
F2F1
Connect Vin +, SW + and
mA in
+ together.
Connect switch test leads
across switch
symbol.
Open circuit test leads
Press ENTER to continue.
Switch Resistance input
now
ready for use.
Press ENTER to continue.
Open circuit test leads.
Now short test leads.
Press ENTER to continue.
Taking Measurements
Pressure Switch Testing with Contact Resistance Measurement
A
C
B
DPI 615
FCT.: P-PRESSOS 24V OFF
MODE ENREG.RAPIDE
ETATCONTACT
DEMARRER
F2F1
bar
A - External pressure source (indicator instruments only)B - Pressure regulator
C - Pressure switch under test
To perform switch test with contact resistance measurement, select P-SWITCH and
proceed as follows:
SELECTIONNER
ZERO
INPUT
SELECTIONNER
FONCTION
RESIST
ZERO
OFF
SELECTIONNER
RESISTANCE
SELECTIONNER
FONCTION
RESIST
ON
ZERO
To ensure accurate measurements it is recommended that the zero procedure (that
compensates for the resistance of the test leads) is carried out before performing this
test.
Note: Allow sufficient time after contact closure for the resistance to stabilize.
24V OFF
bar
Connect Vin +, SW + and
mA in + together.
Connect switch test leads
across switch symbol.
Open circuit test leads
Press ENTER to continue.
Now short test leads.
Press ENTER to continue.
Switch Resistance input
now ready for use.
Open circuit test leads.
Press ENTER to continue.
TASK : P-SWITCH
SNAPSHOT MODE
CONTACT STATE
RUN
The switch test is performed in the same way as the previous
section, except that the contact resistance is measured and
displayed with the results.
FCT.: P-PRESSOS
MODE ENREG. RAPIDE
ETAT CONTACT
FERME A
bar
OUVERT A
bar
HYSTERESIS 1.001
24V OFF
15.060
14.059
bar
DEMARRER
15 K415 Issue No. 1
Taking Measurements
Pressure to Display (P - Display) Task
P-Display is a special application of Datalog. To use this mode, select Datalog from the
Store Mode menu as detailed on page 37. Connect the UUT to the instrument as shown
below and, if required, turn on and set-up Cal Mode (see page 11).
A
B
C
DPI 615
FCT. : P-AFFICHAGE 24V OFF
FICHIER : AUCUN
AFFICHAGE
CHANGER
VALEUR
bar
F2F1
A - External pressure source (indicator instruments only) B - Pressure regulator
C - Dial gauge under test
• Press
TASK
and select
P-DISPLAY
. If required, use
OUTPUT
key to change pressure units.
• Set-up a data log file as detailed on page 31.
Note: TRIGGER field, automatically set to KEYPRESS, cannot be changed.
• Apply a series of test pressures to the device under test. Enter displayed reading at
each pressure and log each point:
FCT.: P-VALEUR
FICHIER: A1
24V OFF 24V OFF 24V OFF
FCT.: P-VALEUR
FICHIER: A1
ENTRER VALEUR
FCT.: P-VALEUR
FICHIER: A1
VALEUR
CHANGER
VALEUR
bar
• After logging final test point , terminate as
follows:
K415 Issue No. 1 16
VALEUR
CHANGER
+
VALEUR
STORE
bar bar
VALEUR
ENREGISTRER
MAINTENANT
ARRETER
ENREGISTREM.
DERNIER POINT
FCT.: P-AFFICHAGE 24V OFF
FICHIER
:A1
STORE
AFFICHAGE
ENREGISTRER
MAINTENANT
bar
ARRETER
ENREGISTREM.
Taking Measurements
Leak Test (LEAK TEST) Task
A
C
B
DPI 615
FCT. : TESTFUITE 24V OFF
MODE ENREG. RAPIDE
ATTENTE
DUREE
DEMARRER
PRESS. FIN
FUITE
TAUX FUITE
CHANGER
VALEUR
3
1
DEMARRER
F2F1
bar
min
min
Bar
bar
bar
bar/m
A - External pressure source (indicator instruments only) B - Pressure regulator
C - Unit/system under test
• If required, use the INPUT key to change pressure units.
• Set-up the leak test WAIT and DURATION times to the required values as shown
below. Recommended minimum wait period - 3 minutes.
FCT. : TESTFUITE
MODE ENREG. RAPIDE
PRESSION INT
ATTENTE
DUREE
CION
DEMARRER
PRESS. FIN
FUITE
TAUX FUITE
CHANGER
VALEUR
24V OFF 24V OFF
bar
min
3
1
min
bar
bar
bar
bar/m
DEMARRER
REGLER
PERIODE
ATTENTE
FCT. : TESTFUITE
MODE ENREG. RAPIDE
PRESSION INT
ATTENTE
DUREE
CION
DEMARRER
PRESS. FIN
FUITE
TAUX FUITE
CHANGER
VALEUR
3
1
DEMARRER
bar
min
min
bar
bar
bar
bar/m
REGLER
DUREE
• Close the vent valve and pressurize the unit/system to the required LEAK TEST
pressure.
•Press the RUN (F2) key to start the leak test. When completed, the beeper sounds
and the leak test results are written to the display.
17 K415 Issue No. 1
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