All product names are trademarks of their respective companies.
Introduction
The DPI 832 Electrical Loop Calibrator is part of the
Druck DPI 800 series of hand held instruments.
The DPI 800 series uses Intelligent Digital Output Sensor
(IDOS) technology to give instant plug and play
functionality with a range of Universal Measurement
Modules (UMM). Example: the Universal Pressure Module
(UPM).
The DPI 832 includes these functions:
Function
* Measure dc mA, mV, Volts
* Supply dc mA, mV, Volts
Step/Ramp functions: Automatic/Manual
Communications port: IDOS or RS232
Language selection
** Measure press ure/Leak test: External IDOS UPM
** Snapshot: Up to 1000 displays with a date/time stamp
HART® resistor
Switch test
Other functions: Hold, Maximum/Minimum/Average, Filter, Tare,
Scaled values, Backlight, Alarm
* Refer to “Specification data”.
** Optional item
Safety
Before you use the instrument, make sure that you read
and understand all the related data. This includes: all local
safety procedures, the instructions for the UMM (if
applicable), and this publication.
WARNING
• It is dangerous to ignore the specified limits for the
instrument or to use the instrument when it is not in
its normal condition. Use the applicable protection
and obey all safety precautions.
• Do not use the instrument in loca tions with explosive
gas, vapor or dust. There is a risk of an explosion.
• To prevent electrical shocks or damage to the
instrument, do not connect more than 30V between
the terminals, or between the terminals and the
ground (earth).
• UPM only. To prevent a dangerous release of
pressure, isolate and bleed the system before you
disconnect a pressure connection.
[EN] English - 1K393 Issue 1
Page 4
Safety (Continued)
Before you start an operation or procedure in this
publication, make sure that you have the necessary skills
(if necessary, with qualifications from an approved
training establishment). Follow good engineering practice
at all times.
Safety - Marks and symbols on the instrument
Complies with European
Union directives
Read the manualBattery
Earth (Ground)
Warning - refer to the
manual
ON/OFF
To start
To start - Location of items …
ItemDescription
1.❍On or off button.
2.
3.
4.
5.
6.
7.
8.Display. Refer to A3
9.
10.Terminals to measure (mV, Volts) or supply (mV, Volts,
11.Connection point for some of the optional
12.Battery compartment. Refer to B1.
13., 14., 15. Terminals to measure current, to supply 24V source,
Left-hand soft-key. Selects the function above it on
■ ■
the display (Item 25). Example: Edit
Moves back one menu level.
ESC
Leaves a menu option.
Cancels the changes to a value.
Increases or decreases a value.
▲
▼
Highlights a differen t item.
Holds the data on the display. To continue, press the
HOLD
HOLD button ag ain.
Shows the Select Task menu.
MENU
Selects or accepts an item or value.
OK
Selects [✓] or cancels [ ] a selection.
Right-hand soft-key. Selects the function above it on
■ ■
the display (Item 25). Example: Settings
Communications port. Use to connect a Universal
SENSOR
/ PC
Measurement Module (UMM) or a RS232 cable.
mA). Refer to “Operation”.
accessories. Refer to the datasheet.
and to do switch tests.
A1A2
To start - Items on the display
ItemDescription
16.Task indication for the switch test.
17.The loop power supply is on (mA input only).
18.The measured value satisfies one of the alarm
19.The data on the display is on hold. To continue, press
20.
21.Identifies the type of data and the measurement
22. ... 24.The settings applied to the input or output.
22. mV The units or a specified scale (x:y) - (Table 4)
23.
24.= Filter
25.A soft-key function. To select an available function,
26.The measured value or values applicable to the task
27.The Edit display to set up text labels ( ≤ 6 characters):
= switch closed
UPM only. Task indication for the leak test.
Refer to: Select Task (Table 2/3)
Refer to: Select Task (Table 2/3)
conditions. Refer to: Settings (Table 4)
the HOLD button again.
Shows the battery level: 0 ... 100%.
range.
= Input= Output
= IDOS input
Refer to: Select Task (Table 2/3)
, ... ,
= Tare
press the soft-key below it. Example:
= Move left = Move right
selection.
x:yScaling (Table 4).
OK = Accept the new text label
Shift = Change the keys: 123ABC or -_+abc
= Add a space
BS = Back space (Delete character)
A3
= switch open
= Output operation (Table 5)
= Maximum
= Average
= Minimum
(Table 4)
To start - Prepare the instrument
Before you use the instrument for the first time:
• Make sure that there is no damage to the instrument,
and that there are no missing items.
• Remove the plastic film that protects the display. Use
the tag (◗ ) in the top right-hand corner.
• Install the batteries (refer to B1). Then re-attach the
cover.
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To start - Power on or off
To turn the instrument on or off, press ❍ (A 1 - item [1]). The
instrument does a self test and then shows the applicable
data.
When the pow er is off, the last set of con figuration options
stays in memory. Refer to “Maintenance”.
To start - Set up the basic operation
Use the Set Up menu to set up the basic operation of the
instrument.
Menu:
1
Select Task
(Table 2)(Table 1)[✓]/[ ]
23
▲
▼
Menu:
Set Up
45
▲
▼
If there is additional data for a menu option, select
Settings (■■
) to see the values that are set up. If
necessary, adjust the values.
Table 1: Menu options - Set Up
Options
(If applicable)
Description
To add a series resistor into the mA circuit. You can
then use this instrument together with a HART®
communicator t o set up and calibrate HART®
devices.
To select and set up the backlight facility + timer.
Additional data: Select Settings (■■)
To select and set up the power off facility + timer.
Additional data: Select Settings (■■)
To show the battery level (%).
To set the display contrast (%).
▲ Increases %, ▼ decreases %
To set the time + date. The calibration facility uses
the date to give service and calibration messages.
To set the language option.
To calibrate the instrument.
Additional data: Refer to “Calibration”.
To select and show the ap plicable status data.
(Software Build, Calibration Due date, Serial
Number, IDOS Information).
To start - Select a task (Measure and/or supply)
When the instrument is set up (Table 1), use the Select Task
menu to select the applicable task.
1
Menu:
Select Tas k
(Table 2/3)
23
▲
▼
Display:
mA output
Sk1 = Edit
Sk2 = Settings
In Table 2/3, IDOS is a Universal Measurement Module
(UMM). If you attach a UMM to the communications port
(A1 - item [9]), the Select Task menu shows the applicable
IDOS options.
Table 2: Menu options - Select Task
Options
(If applicable)
IDOSUMM only. An IDOS measurement task.
UPM only. A leak test.
Description
mA or
An input measurement task:
Volts
mA - Measure mA (±55 mA)
Volts - Measure volts (±120mV or ±30V)
mA or
An output task:
Volts
mA - Supply mA (0 ... 24 mA)
Volts - Supply volts (0 ... 120mV or 0 ... 12V)
mA(24V) Supply mA + the loop power supply is on.
mA(24V) Me asure mA + the loop power suppl y is on.
A switch test.
To set up the way the instrument works.
Additional data: Refer to: Set Up (Table 1).
Table 3 shows all the one and two function operations that
are available. If you attach a UMM, you can only use the
options that include IDOS.
Table 3: Permitted 1 and 2 function operations
Function
mA(1) (2)(2)x(2)(2)
mA(24V) (1) (2)(2)x(2)(2)
IDOS(1) (2)(2)(2)(2)x
mAmA(24V) VoltsVoltsIDOS
(1)(1)(1)(1)(1)
x (2)(2)x(2)(2)
xxxxx(2)
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To start - Set up the settings
When the task is set up (Table 2/3), use the Settings menu
to adjust the input and/or output operation.
Display: Task
mA + mA
Sk1 = Start/Stop
Sk2 = Settings
Menu:
Settings
(Table 4)[✓]/[ ]Sk1 = Edit
Menu:
Settings
Settings selection
1
■ ■
4A 5A 6A
▲
▼
4B 5B
▲
▼
(If applicable)
■ ■
23
▲
▼
Settings
x:y
Table 4: (Part of table) Menu options - Settings (Input)
Options
(If applicable)
Description
To select and set up the filter values to give a
smoother output for the measurement task:
Band as a % of full scale (FS). The filter
compares each new value with the previous
value. If the new value is outside the band, it
is not filtered.
Low pass filter time constant in seconds.
Increase the valu e to increase damping
factor.
Additional data: Select Settings (■■)
To select and set up the alarm values for the
measurement task (maximum and minimum).
Additional data: Select Settings (■■)
UPM only. Gage sensors or sensors with
differential operation. A zero correction that makes
the instrument read zero at local pressure.
Leak Test only. To set an appl icable period for the
leak test (Hours:Minutes:Seconds).
To start - Edit functions
Example 1) Set up a label for x:y Scaling = %.
Settings
x:y
1Edit 2Edit3
(Table 5)[●]/ [ ]
If there is additional data for a menu option, select
Settings (■■
) to see the values that are set up. If
necessary, adjust the values. Refer to “Edit functions”.
Table 4: (Part of table) Menu options - Settings (Input)
Options
(If applicable)
Description
... Units UPM only = “Pressure Units” if you select an IDOS
task (Table 2/3). Select one of the fixed units of
measurement (psi, mbar ... ).
To include maximum, minimum and average
values for the measurement task.
To select and set up a tare value for the
measurement task (a specified value or the
reading on the display).
The instrument subtracts a positive tare value, and
adds a negative tare value.
Additional data: Select Settings (■■)
To select and set up a scale of values: One local
scale for each measurement task (Maximum: 5).
Additional data (Example 1/2): Select Settings (■ ■)
▲
■ ■
Sk1 = EditA3 - item [27]
Edit ...Edit45
%_
A3 - item [27]
▼
■ ■
Shift
▲
OK
▼
■ ■
Example 2) Set up values for x:y Scaling = 0 to 100%.
Settings
x:y
Sk1 = Edit
Settings
1
▲
▼
= Flow scaling (mA, pressure only)
2Ed it34
x:y
■ ■
▲
▼
■ ■
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Table 5: Menu options - Settings (Output)Table 6: Additional data for Settings (Output):
OptionsDescription
To select and set up a value for the “Nudge”
output. Example: 1.000mA increments.
Additional data: Select Settings (■■)
To select and set up values for the “Span Check”
output. Example output cycle:
This cycle repeats
automatically.
Additional data (Table 6): Select Settings (■■)
To select and set up values for the “% Step” output.
% Step
Example output cycle:
Auto Repeat - Optiona l
Additional data (Table 6): Select Settings (■■)
To select and set up values for the “Defined Step”
... Step
output. Example output cycle:
Auto Repeat - Opt ional
ItemValue
Span Check
Low (0%)Set the 0% value.
High (100% )Set the 10 0% value.
Dwell (d)Set the period (Hours:Minutes:Seconds) betwee n
each change in value.
% StepLow (0%), High (100%), Dwell (d): As above.
Step Size (s) ... %Set the change in value for each step as a
percentage of the full-scale range (High - Low).
Defined Step Low (0%), High (100%), Dwell (d): As above.
Step Size (s)Set the change in value for each step in mA, mV or
Volts.
RampLow (0%), High (100%), Dwell (d): As above.
Travel (t)Set the period (Hours:Minutes:Seconds) to go from
the Low (0%) value to the High (100%) value.
Auto Repeat If applicable, select this item to repeat a cycle
continuously.
To select and set up values for the “Ramp” output.
Additional data (Table 6): Select Settings (■■)
Example output cycle:
Auto Repeat - Optiona l
Additional data (Table 6): Select Settings (■■)
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Operation
This section gives examples of how to connect and use the
instrument. Before you start:
• Read and understand the “Safety” section.
• Do not use a damaged instrument.
Operation - Electrical connections
To prevent instrument errors, make sure that the electrical
connections (A1-item [10] and/or A2) are correct.
Operation - Communications port connections
Use the communications port (A1 - item [9]) to attach an
IDOS Universal Measurement Module (UMM).
When you attach the cable from a UMM (Figure 6/7), the
instrument automatically changes the menus to give you
all the applicable options (Table 2/3).
Operation - Measure mV or Volts
To measure mV or Volts:
1. Connect the instrument (Figure 1) and, if necessary,
adjust the Set Up (Table 1).
2. Select the Volts input task from Select Task (Table 2/3)
and select the necessary range (mV or Volts).
3. If necessary, adjust the Settings (Table 4).
0 ... ±120mV
0 ... ±30V
Volts
Operation - Change the output values
When the output operation is set up (Table 5), use one of
these procedures to change the output values:
Table 7: Procedures to change the output
OutputProcedure
,
Select Edit (■ ■) and/or use the ▲ ▼ buttons.
See the example below.
Select Start/Stop (■ ■) or use the ▲ ▼ buttons
to make the step changes manually.
Select Start/Stop (■ ■).
Example procedure (“Nudge” output):
Display:
mA output
Sk1 = Edit
Sk2 = Settings
Display:
mA output
1Edit23Edit4
▲
■ ■■ ■
56
▲
▼
▲
2.000
▼
Increment = 1.000
(Table 5)
3.000
▼
+01.000
mV
Volts
Settings
Figure 1: Example configuration - To measure mV
or Volts
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Operation - Supply mV or Volts
To supply mV or Volts:
1. Connect the instrument (Figure 2) and, if necessary,
adjust the Set Up (Table 1).
2. Select the Volts output task from Select Task (Table 2/3)
and select the necessary range (mV or Volts).
3. If necessary, adjust the Settings (Table 5).
4. Supply the output values to the system (Table 7).
0 ... 120mV
0 ... 12V
Maximum: 30V
Volts
mV
Volts
Edit Settings
Figure 2: Example configuration - To supply mV or Volts
Operation - Supply mA
To supply a current:
1. Connect the instrument (Figure 3) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable mA output task from Select Task
(Table 2/3).
3. If necessary, adjust the Settings (Table 5).
4. Supply the output values to the system (Table 7)
Edit Settings
a) with external loop
power
Edit Settings
b) with internal loop
power
Figure 3: Example configuration - To supply mA
Operation - mA measurements
To measure a current:
1. Connect the instrument (Figure 4) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable mA input task from Select Task
(Table 2/3) and, if necessary, adjust the Settings
(Table 4).
Maximum: 30V
SettingsSettings
a) with external loop
power
b) with internal loop
power
Figure 4: Example configuration - mA measurement
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Operation - Switch test
To do tests on a switch:
1. Connect the instrument (Figure 5) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable switch test from Select Task
(Table 2/3) and, if necessary, adjust the Settings
(Table 5). The display shows the switch condition (open
or closed) in the top right-hand corner.
3. Supply the output values to the system (Table 7).
• Example - “Nudge” output.
a. Use Edit (■
■) to set a value less than the switch
value.
b. Use the ▲ ▼ buttons to change the value in small
increments.
•Example - “Ramp” output.
a. Set “High” and “Low” values that are applicable to
the switch value (Table 6). Then, to get an accurate
switch value, set a long “Travel” period.
b. Use Start/Stop (■
■) to start and stop the “Ramp”
cycle.
4. If necessary, supply the output values in the opposite
direction until the switch changes condition again.
The display shows the applicable values to open and
close the switch.
5. To do the test again, press ESC to reset the values.
Operation - UPM Pressure measurements
Read all the instructions supplied with the UPM and then
use the specified procedures to connect it (Figure 6/7).
Settings
a) Pressur eb) Leak test
Start Settings
Figure 6: Example configuration - Pressure measurement
with a UPM
When the connections are complete, make the necessary
IDOS selections (Table 2/3).
If you re-attach a UPM, the instrument uses the same
measurement units that you used before. The instrument
keeps a record for the last 10 modules.
UPM - Measure the pressure
To measure the pressure (Figure 6):
1. Select the applicable pressure task from Select Task
(Table 2/3) and, if necessary, adjust the Set Up (Table 1),
and the Settings (Table 4/5).
2. If necessary, do a zero correction (Table 4).
To measure pressure with another operation (Figure 7), use
the same procedure.
Edit Settings
Figure 5: Example configuration - Switch test
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Settings
Figure 7: Example configuration - To measure pressure
and supply mA
UPM - Leak test
To do a leak test on a pressure system (Figure 6):
1. Select an applicable leak test from Select Task
(Table 2/3) and, if necessary, adjust the Set Up (Table 1),
and the Settings (Table 4).
2. Set the period for the leak test (Table 4).
3. If necessary, do a zero correction (Table 4).
4. To start the leak test, select Start (■
■). When the test is
finished, the instrument calculates the leak rate in the
applicable units/minute.
Operation - Error indications
If the display shows <<<< or >>>> :
• Make sure that the range is correct.
• Make sure that all the related equipment and
connections are serviceable.
Maintenance
This section gives procedures to maintain the unit in a
good condition. Return the instrument to the supplier for
all repairs.
Maintenance – Clean the unit
Clean the case with a moist, lint-free cloth and a weak
detergent. Do not use solvents or abrasive materials.
Maintenance – Replace the batteries
B1
To replace the batteries, refer to B1. Then re-attach the
cover.
Make sure that the time and date are correct. The
calibration facility uses the date to give service and
calibration messages.
All the other configuration options stay in memory.
Calibration
Note: GE can provide a calibration service that is traceable
to international standards.
We recommend that you return the instrument to the
manufacturer or an approved service agent for
calibration.
If you use a n alternative calibrat ion facility, make sure that
it uses these standards.
Calibration - Before you start
To do an accurate calibration, you must have:
• the calibration equipment specified in Table 8.
• a stable temperature environment: 70 ± 2°F (21 ± 1°C)
FunctionCalibration equipment
mV/VoltsmV/Volts calibrator.
PressureUPM only. Refer to the user manual for the IDOS
mAmA calibrator.
Before you start the calibration, make sure that the time
and date on the instrument are correct (Table 1).
Table 8: Calibration equipment
Accuracy: Refer to Table 10/11, and Table 13/14.
UPM.
Accuracy: Refer to Table 12 an d Table 15.
[EN] English - 9K393 Issue 1
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Selection sequence:
➤ Select Task (Table 2) ➤ Set Up (Table 1) ➤ Calibration ➤.
Display: Enter
1
Calibration PIN
Factory PIN = 4321(Table 9)
23
▲
▼
+
■■
Menu:
Select Channel
45
▲
▼
Table 9: Calibration options
OptionsDescription
...To calibrate the spe cified input: mV, Volts, mA
...To calibrate the specified output: mA, mV, Volts
IDOS ...UMM only. To calibrate the specified IDOS UMM.
Refer to the user manual for the IDOS UMM.
Calibration Due: To set the date of the next
calibration for the instrument.
After the specified calibration date, there is a
warning mes sage. There is a sel ection box to stop
the warning.
To change the calibration PIN (Personal
Identification Number).
When you select a channel, the display shows the
applicable instructions to complete the calibration.
When the calibration is complete, select Calibration Due
and set the new calibration date for the instrument.
Calibration - Procedures (mV or Volts input)
1. Connect the instrument to the calibration equipment
(Figure 1).
2. Let the equipment get to a stable temperature
(minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do a three-point
calibration (-FS, Zero and +FS). The display shows the
applicable instructions to complete the calibration.
4. To make sure that the calibration is correct, select the
applicable Volts input task and range (Table 2).
5. Then apply the input values that are applicable to the
calibration:
1. Connect the instrument to the calibration equipment
(Figure 4).
2. Let the equipment get to a stable temperature
(minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do a three-point
calibration (-FS, Zero and +FS). The display shows the
applicable instructions to complete the calibration.
4. To make sure that the calibration is correct, select the
applicable mA input task (Table 2) and apply these
values:
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Calibration - Procedures (mV or Volts output)
1. Connect the instrument to the calibration equipment
(Figure 2).
2. Let the equipment get to a stable temperature
(minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do a two-point
calibration (Zero and +FS). The display shows the
applicable instructions to complete the calibration.
4. To make sure that the calibration is correct, select the
applicable Volts output task and range (Table 2).
5. Then set the output values that are applicable to the
calibration:
• mV: 0 (short circuit), 30, 60, 90, 120
OR
• Volts (V): 0 (short circuit), 3, 6, 9, 12
6. Make sure that the error is in the specified limits
(Table 13 or Table 14).
1. Connect the instrument to the calibration equipment
(Figure 3).
2. Let the equipment get to a stable temperature
(minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do a two-point
calibration (Zero and +FS). The display shows the
applicable instructions to complete the calibration.
4. To make sure that the calibration is correct, select the
applicable mA output task (Table 2) and set these
output values:
• mA: 0 (short circuit), 4, 12, 20, 24
5. Make sure that the error is in the specified limits
(Table 15).
Accuracy: Measure mV0.02% of reading + 2 counts
Accuracy: Measure V0.03% of reading + 2 counts
Range (Supply): 0 to 120 mV
Accuracy (Supply):
mA, mV, V
Temperature coefficient
(Measure or supply)
14 … 50°F, 86 … 122°F
(-10 … 10°C, 30 … 50°C)
Connectors (A1 - Item 10)Five 0.16 in (4 mm) sockets
0 to ±30 V
0 to 24 mA
0 to 12 V
0.02% of reading + 2 counts
0.0017% FS / °F
(0.003% FS / °C)
EMCBS EN 61326-1:1998 + A2:2001
SafetyElectrical - BS EN 61010:20 01; CE Marked
Size (L: W: H)7.1 x 3.3 x 2.0 in
Weight14 oz (400 g)
Power supply3 x AA alkaline batteries
Duration
(Measure)
Duration
(Supply)
Range (Measure)0 to ±55 mA
Accuracy0.02% of reading + 3 counts
Temperature coefficient
14 … 50°F, 86 … 122°F
(-10 … 10°C, 30 … 50°C)
Switch detectionOpen and closed. 2 mA current.
Loop power output24 V ± 10%
HART® resistor
Connectors (A2)Three 0.16 in (4 mm) sockets