DPI 820
Dual Input Thermometer
User manual
K386 Issue 1
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K386 Issue 1
20
Introduction ............................................................................ 1
Table of Contents
Safety ...................................................................................... 1
Safety - Marks and symbols on the instrument .................... 1
To start .................................................................................... 2
To start - Location of items ................................................ 2
To start - Items on the display ............................................ 2
To start - Prepare the instrument .......................................... 2
To start - Power on or off ...................................................... 2
To start - Set up the basic operation ..................................... 3
To start - Select a task (Measure) ........................................ 3
To start - Set up the settings ................................................. 4
To start - Edit functions ......................................................... 4
Operation ................................................................................ 4
Operation - Thermocouple connections ............................... 4
Operation - Communications port connections .................... 4
Operation - Measure temperature ........................................ 5
Operation - IDOS Pressure measurements .......................... 5
Operation - Use the Snapshot functions ............................... 6
Maintenance ........................................................................... 7
Maintenance – Clean the unit ............................................... 7
Maintenance – Replace the batteries ................................. 7
Maintenance – Recalibrate the unit ...................................... 7
Specification data .................................................................. 8
Specification - General ......................................................... 8
Specification - Temperature ranges ...................................... 8
Customer Service ..................................................Back cover
Introduction
The DPI 820 Dual Input Thermometer is part of the GE 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).
The DPI 820 includes these functions:
Function
* Measure temperature: T1 and/or T2
* Measure temperature difference: T1 - T2
* Cold Junction (CJ) compensation
Snapshot: Up to 1000 displays with a date/time stamp
Communications port: IDOS or RS232
Language selection
** Measure pressure/Leak test: UMM - Pressure
Other functions: Hold, Maximum/Minimum/Average, Filter, Tare,
Scaled values, Bac klight, Alarm
* Refer to “Specification”.
** 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.
Before you start an operation or procedure, make sure that you
have the necessary skills (if necessary, with qualifications from
an approved training establishment). Follow good engineering
practice at all times.
• 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 locations 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).
• UMM - Pressure options only. To prevent a dangerous
release of pressure, isolate and bleed the system befo re
you disconnect a pressure connection.
WARNING
Safety - Marks and symbols on the instrument
Complies with European
Union directives
Read the manual Battery
Ground (Earth)
ON/OFF
Warning - refer to the
manual
Identifies the
T1/T2
thermocouple connector
[EN] English - 1K386 Issue 1
To start
To start - Location of items
Item Description
1. ❍ On or off button.
2.
3.
4.
5.
6.
7.
8. Display. Refer to A2
9.
9a.
10. Thermocouple connector: Refer to “Operation”.
10a. Type K thermocouple (two included).
11. Connection point for some of the opti onal accessories.
12. Battery compartment. Refer to B1.
Left-hand soft-key. Selects the function above it on the
■ ■
display (Item 20). 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 different it em.
▼
Holds the data on the display. To continue, press the
HOLD
HOLD button again.
Snapshot mode (Item 16): Records the data on the
display.
Shows the Select Task menu.
MENU
Selects or accepts an item or value.
OK
Selects [✓] or cancels [ ] a selection
Right-hand soft-key. Selec ts the functi on abov e it on the
■ ■
display (Item 20). Example: Settings
Communications port. Use to connect a Universal
SENSOR/
PC
Measurement Module (UMM) or a RS232 cable.
Optional item - Part No. IO800D: RS232 cable (5-pin to
9-pin D type connector). Use to copy the snapshot
records to a PC or to a printer. Refer to “Operation”.
Refer to the datasheet.
A1
To start - Items on the display
Item Description
13. UMM - Pressure only. Task indication for the
14. The measured value satisfies one of the alarm
15. The data on the display is on hold. To continue , press
16. The snapshot function is set up to record the data on
17.
18. Identifies the type of data: measurement range, units,
19. Shows the settings applied to the input (If applicable).
20. A soft-key function. To select an available function,
21. The measured value or values applicable to the task
22. The Edit display to set up text labels ( ≤ 6 characters):
leak test.
Refer to: Select Task (Tab le2)
conditions. Refer to: Settings (Ta bl e 3)
the HOLD button again.
the display (Periodic or Keypress).
Refer to: Set Up (Table1)
Shows the battery level: 0 ... 100%.
thermocouple type (K, J, T ... ), T1/T2 - If applicable.
= Input = IDOS Input
Refer to: Select Task (Tab le2)
123ABC = x:y scaled value
= Filter
= Tare
Refer to: Settings (Table 3)
press the soft-key below it. Example:
= Move left = Move right
selection.
Snapshot (Table 1), x:y Scaling (Tab le 3).
OK = Accept the new text label
Shift = Change the keys: 123ABC or -_+abc
= Add a space
BS = Back space (Delete character)
A2
= Maximum
= Average
= Minimum
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 displa y. Use the tag
(◗ ) in the top right-hand corner.
• Install the batteries (refer to B1). Then re-attach the cover.
To start - Power on or off
To turn the instrument on or off, press ❍ (A1 - item [1]). The
instrument does a self test and then shows the applicable data.
When the power is off, the last set of configuration options stays
in memory. Refer to “Maintenance”.
2 - English [EN] K386 Issue 1
To start - Set up the basic operation
Use the Set Up menu to set up the basic operation of the
instrument.
1
Menu:
Select Task
23
Menu:
Set Up
45
To start - Select a task (Measure)
When the instrument is set up (Table 1), use the Select Task
menu to select the applicable task.
1
Menu:
Select Task
23
Display:
T1 input
▲
▼
(Table 2) (Table 1) [✓]/[ ]
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 Description
... Units To select the temperature units (°C or °F).
... Units UMM - Pressure options only. = “Pressure Units” if y ou
select an IDOS task (Table2). If ap plic abl e, s ele ct one
of the fixed units of measurement (psi, m bar ... ).
To set up and use the Snapshot functions.
Additional data: Refer to Operation (Table 4)
... type To select an applicable thermocouple type (K,J, T ... )
... Scale To select the applicable international temperature
scale: IPTS 68 or ITS 90.
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 (%).
Increase s %, ▼ d ecreases %
▲
To set the time + date. The calibration facility uses the
date to give service and calibration messages.
Snapshot adds a date/time stamp to each display.
To set the language option.
To calibrate the instrument.
Additional data: Refer t o “Ma i ntenance”.
To select and show the applicable status data
(Software Build, Service History, Serial Number).
)
)
▲
▼
(Table 2) Sk2 = Settings
In Table 2, IDOS is a Universal Measurement Module (UMM). If
you attach a UMM to the communications port (A1 - item [9]), the
Select Task menu includes the applicable IDOS options.
Table 2: Menu options - Select Task
Options Description
T1 Selects one temperature measurement task (T1, T2,
T1-T2). T1-T2 gives the temperature difference.
Selects two temperature measurement tas ks (T1 and
T2).
IDOS UMM - Pressure options only. Selects the IDOS
pressure measurement task.
UMM - Pressure options only. Selects one
temperature measurement task (T1, T2, T1-T2) + the
IDOS UMM - Pressure options only. Selects the IDOS
IDOS pressure measurement task.
pressure measurement task + leak test.
To set up the way the instrument works.
Additional data: Refer t o: Set Up (Table 1).
[EN] English - 3K386 Issue 1
To start - Set up the settings
When the task is set up (Table 2), use the Settings menu to
adjust the input operation.
Display: Task
T1, T2
Sk2 = Settings
Menu:
Settings
(Table 3) [✓]/[ ] Sk1 = Edit
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”.
Settings selection
1
(If applicable)
■ ■
456
▲
■ ■
▼
Settings
x:y
23
▲
▼
Table 3: Menu options - Settings
Options Description
To inc lude maximum, min imum and av erage v alues f or
the measurement task (If applicable). Only available
when there is one input measurement task.
To select and set up a tare value for the measurement
task (a specified value or the reading on th e di splay).
The instrument subtracts a positive tare value, and
adds a negative tare value.
Additional data: Select Settings (■ ■
To s elec t and set up a s cal e of v alue s: One local scal e
for each measurement task (Maximum: 5).
Additional data (Table 1): Select Settings (■ ■
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 v alue is outside the band, it is
not filtered.
Low pass filter time constant in seconds .
Increase the value 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 (■ ■
UMM - Pressure options only. Gage sensors or
sensors with differential operation. A zero correction
that makes the instrument read zero at local pressure.
Leak T est only. To set an appli cab le period f o r the leak
test (Hours:Minutes:Seconds).
)
)
)
)
To start - Edit functions
Example 1) Set up a label for x:y Scaling = %.
Settings
x:y
Sk1 = Edit A2 - item [22]
1 Edit
■ ■
A2 - item [22]
2 Edit 3
▲
▼
■ ■
Edit
... Edit 45
%_
Shift
▲
OK
▼
■ ■
Example 2) Set up values for x:y Scaling = 0 to 100%.
Settings
x:y
Sk1 = Edit
Operation
This section gives examples of how to connect and use the
instrument. Before you start:
Settings
1
▲
▼
2 Edit 34
x:y
■ ■
▲
▼
■ ■
• Read and understand the “Safety” section.
• Do not use a damaged instrument.
Operation - Thermocouple connections
Attach the thermocouple wires to the applicable thermocouple
mini-connector (Figure 1). The wider blade is the negative.
Then attach the connector to the instrument.
Operation - Communications port connections
Use the communications port (A1 - item [9]) to attach an IDOS
Universal Measurement Module (UMM) or an RS232 device.
• IDOS Communications
When you attach the cable from a UMM (Figure3), the
instrument automatically changes the menus to give you all the
applicable options (Table 2).
• RS232 Communications
Use an RS232 cable (A1 - item [9a] ) to tr ansmit all the Snapshot
data to a PC or a printer (Table4).
4 - English [EN] K386 Issue 1
Operation - Measure temperature
To measure temperature:
1. Connect the applicable thermocouples (Figure 1/2) and, if
necessary, adjust the Set Up (Table 1).
2. Select a Temperature input task from Select Task (Table2)
and, if necessary, adjust the Settings (Table 3).
If the display shows <<<< or >>>> :
• Make sure that the wires and the sensor are serviceable.
T1
K
K
T1 T2
T1
T2
T2
Reference
T1 T2
.
T1
K
K
T2
Settings
a) T1 - T2
Figure 2: Example configuration - To measure the temperature
difference
Operation - IDOS Pressure measurements
UMM - Pressure options only. Read all th e instr uctions suppli ed
with the UMM and then use the specified procedures to connect
it (Figure 3/4 ).
Settings Settings
a) T1 or T2 b) T1 and T2
Figure 1: Example configurations - To measure the temperature
The examples in Figure1 show how to compare temperatures or
measure different temperatures in a system.
with one or two thermocouples
Settings
Start Settings
a) Pressure b) Leak test
Figure 3: Example configuration - Pressure measurement
with a UMM
[EN] English - 5K386 Issue 1
When the UMM is connected, make the necessary pressure
selections.
IDOS - Measure the pressure
To measure the pressure:
1. Select the applicable pressure task from Select Task
(Table 2) and, if necessary, adjust the Set Up (Table 1), and
the Settings (Table 3).
2. If necessary, do a zero correction (Table 3).
T o measure pressure and temper ature (Figu re4), use the same
procedure.
T1
K
Settings
Figure 4: Example configuration - To measure pressure
IDOS - Leak test
To do a leak test on a pressure system:
1. Select an applicable leak test from Select Task (Table2)
and, if necessary, adjust the Set Up (Table1), and the
Settings (Table 3).
and temperature
2. Set the period for the leak test (Table3).
3. If necessary, do a zero correction (Table 3).
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 - Use the Snapshot functions
Use Snapshot to record up to 1000 displays then examine the
results on the display, or transmit all the data to a PC or printer
(Figure 5).
Menu:
Set Up
(Table 1) (Table 4)
If there is additional data for a menu option, select Settings (■■)
to see the values that are set up. If necessary, adjust the values.
23
▲
▼
Menu:
Snapshot
45
▲
▼
Table 4: Snapshot functions
Options Description
Snapshot - Use the Snapshot data
Use HOLD to record the data (Table 4). When you have
sufficient records, select Stop Log (■■). You can then read the
data back on the display or transmit it to a PC or printer.
To set up a file name (refer to “To start“) and to select
the Snapshot method:
Use this option to record an individual dis pl ay
each time you press HOLD.
Use this option to record the display s at
specified intervals of time. Pres s HOLD to start.
Additional data: Select Settings (■ ■
Off - Snapshot is off
To show the available Snapshot data on the
display.
Use these keys: ▲, ▼, MENU/OK
T o transmit all the Snapshot data to a PC or a printer
(Figure 5).
To er ase all the Snapshot data.
To sho w the amount of memory used (%).
Total memory = 12 288 bytes
Capacity ≈ 1000 displays (one measurement)
Capacity ≈ 750 displays (two measurements)
Example:
One file ≈ 96 bytes (no Settings)
For each display in the file:
Date/Time = 8 bytes; Each value = 4 bytes
One display (One measurement) = 12 bytes
)
Figure 5: (Part of figure) Procedure to transmit the Snapshot data
6 - English [EN] K386 Issue 1
Step Procedure
➀, ➁
➂
➃
Data form at
➄
A1 - Item [9a] (Optional) : Connect the 5-pin connector
to the IDOS instrument.
A1 - Item [9a] (Optional) : Connect the 9-pin connector
to the serial port on the PC or to a serial printer (refer
to the PC or printer instructions).
PC: Make sure that Windows® HyperTerminal or
similar program is set up to use the specifi ed data
format (refer to your PC on-line Help).
Serial pri n te r: Make sure that the printer can use the
specified data format.
Baud rate: 19200
Parity: None
Software handshake: Xon/Xoff Flow Control
ASCII format text; Comma delimited
Transmit the data to the PC or printer (Table4).
PC: Use Windows
program to make a text file. You can then import the
text file into a spreadsheet.
Data bits: 8
Stop bits: 1
®
HyperTerminal or a similar
Figure 3. (Part of figure) Procedure to transmit the Snapshot data
Snapshot - Contents of the Snapshot data
Model 820
Serial No 820000 0001
Calibration due 01/01/2004
Tag H2O-1
Task Id 110
T1 in
Date Time °C K T1
08/07/2004 12:06:44 27.6
08/07/2004 12:06:46 27.2
Tag B145
Task Id 164
T1 In Tare On
T2 In Filter On Ta r e On
Date Time °C K T1 °C K T2
08/07/2004 14:41:36 32.5 32.4
08/07/2004 14:41:38 32.5 32.4
08/07/2004 14:41:41 32.4 32.5
Figure 6: Example Snapshot data
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
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.
B1
All the other configuration options stay in memory.
Maintenance – Recalibrate the unit
Note: GE Druck can provide a calibration service that is
traceable to international standards.
Before you start the calibration, make sure that the time and date
are correct (Table 1).
To get accurate results, do the calibration in stable te mperature
conditions, and to the applicable calibration standards.
Selection sequence:
➤
Select Task (Table 2) ➤ Set Up (Table 1) ➤ Calibration ➤.
Display: Enter
1
Calibration PIN
Factory PIN = 4321 (Table 5)
When you select a channel, the display shows the applicable
instructions to complete the calibration.
23
▲
▼
+
■ ■
Menu:
Select Channel
45
▲
▼
Table 5: .Calibration options
Options Description
mV... To calibrate the specified thermocouple channel.
CJ... To calibrate the specified cold junction channel.
IDOS ... UMM - Pressure only. To calibrate the specified IDOS
channel. Refer to the UMM specification
To set the date for the next calibration.
After the specified calibration date, there is a warning
message. There is a selection bo x to st op the warnin g.
To change the calibration PIN (Personal Identification
Number).
When the calibration is complete, select Calibration Due and set
the new calibration date.
Calibration: Measure mV
The specified accuracy (refer to “Specification”) includes an
allowance for temperature changes, reading stability for one
year, and the uncertainty of the standard used for calibration.
GE Druck recommend that you return the instrument to the
manufacturer or an approved service agent for calibration.
If you use an alternative calibration facility, make sure that it
uses these standards:
• Accuracy of the mV calibration equipment:
0.008% reading + 0.003% FS or better.
• Calibration limit for the instrument (mV measure): 0.01%
reading + 4 µV or better.
[EN] English - 7K386 Issue 1
Specification data
All accuracy statements are for one year.
Specification - General
Languages English [Default]
Operating temperature 14 … 122°F (-10 … 50°C)
Storage temperature -4 … 140°F (-20 … 60°C)
Humidity 0 to 90% without condensation
Shock/Vibratio n BS EN 61010:2001; Def Stan 66-31, 8.4 cat III
EMC BS EN 61326-1:1998 + A2:2001
Safety Electrical - BS EN 61010:2001; CE Marked
Size (L: W: H) 7.1 x 3.3 x 2.0 in (180 x 85 x 50 mm)
Weight 14 oz (400 g)
Power supply 3 x AA alkaline batteries
Duration > 80 hours (Measure),
(Def Stan 66-31, 8.6 cat III)
> 10 hours (24 V Source at 12.5 mA)
Specification - Temperature ranges
Thermocouple type Standard Range °F Range °C Accu racy °F * Accuracy °C *
K IEC 584 -454 .... -328 -270 .... -200 3.6 2.0
K IEC 584 -328 ... 2498 -200 ... 1370 1.1 0.6
J IEC 584 -346 ... 2192 -210 ... 1200 0.9 0.5
T IEC 584 -454 .... -292 -270 .... -180 2.5 1.4
T IEC 584 -292 ...... -94 -180 ...... -70 0.9 0.5
T IEC 584 -94 ..... 752 -70 ..... 400 0.6 0.3
B IEC 584 122 ..... 932 50 ..... 500 7.2 4.0
B IEC 584 932 ... 2192 500 ... 1200 3.6 2.0
B IEC 584 2192 ... 3308 1200 ... 1820 1.8 1.0
R IEC 584 -58 ....... 32 -50 ......... 0 5. 4 3.0
R IEC 584 32 ..... 572 0 ..... 30 0 3.6 2.0
R IEC 584 572 ... 3216 300 ... 1769 1.8 1.0
S IEC 584 -58 ....... 32 -50 ........ . 0 4.5 2.5
S IEC 584 32 ..... 212 0 ... .. 100 3. 4 1.9
S IEC 584 212 ... 3216 100 ... 1769 2.5 1.4
E IEC 584 -454 .... -238 -270 .... -150 1.6 0.9
E IEC 584 -238 ... 1832 -150 ... 1000 0.7 0.4
N IEC 584 -454 ........ -4 -270 ...... -20 1.8 1.0
N IEC 584 -4 ... 2372 -20 ... 1300 1.1 0.6
L DIN 43710 -328 ... 1652 -200 ..... 900 0.6 0.3
U DIN 43710 -328 ..... 212 -200 ..... 100 0.9 0.5
U DIN 43710 212 ... 1112 100 ..... 600 0.6 0.3
C 32 ... 2732 0 ... 1500 1.8 1.0
C 2732 ... 3632 1500 ... 2000 2.5 1.4
C 3632 ... 4208 2000 ... 2320 3.4 1.9
D 32 ... 3092 0 ... 1700 1.8 1.0
D 3092 ... 3992 1700 ... 2200 2.9 1.6
D 3992 ... 4523 2200 ... 2495 6.5 3.6
*Cold Junction (CJ) error (Maximum):
Range 10 ... 30°C (50° ... 86°F) = 0.2°C (0.4°F)
Add 0.01° CJ error / ° ambient temperature change for ranges:
14 … 50°F, 86 … 122°F
(-10 … 10°C, 30 … 50°C)
8 - English [EN] K386 Issue 1
Customer Service
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