Druck DPI 841 Руководство пользователя - Страница 3
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Introduction ......................................................................... 1
Safety ..................................................................................... 1
Marks and symbols on the instrument ................................. 2
To start .................................................................................. 2
Location of items ............................................................................ 2
Items on the display ...................................................................... 2
Prepare the instrument ................................................................ 2
Power on or off ................................................................................ 3
Set up the basic operation ......................................................... 3
Select a task (Measure and/or supply) .................................. 3
Set up the settings ......................................................................... 4
Edit functions .................................................................................... 4
Operation .............................................................................. 6
Frequency connections ............................................................... 6
Communications port connections ........................................ 6
Measure Hz or count pulses ...................................................... 6
Change the output values .......................................................... 6
Supply Hz or pulses ........................................................................ 7
Transmitter calibration ................................................................ 7
mA measurements ........................................................................ 8
Switch test .......................................................................................... 8
UPM Pressure measurements .................................................. 9
Error indications .............................................................................. 9
Maintenance ..................................................................... 10
Clean the unit ................................................................................ 10
Replace the batteries ................................................................. 10
Calibration ......................................................................... 10
Before you start ............................................................................ 10
Procedures (Hz - input/output) .............................................. 10
Procedures (mA input) ............................................................... 11
Procedures (Amplitude output) ............................................. 11
Procedures (IDOS UMM) ............................................................ 12
Specification data ............................................................ 12
General ............................................................................................. 12
Frequency ....................................................................................... 12
Electrical connectors (A2) ......................................................... 12
Customer service ............................................... Back cover
© 2007 General Electric Company. All rights reserved.
Trademarks
All product names are trademarks of their respective companies.
K395 Issue 3
Introduction
The DPI 841 Frequency Calibrator and DPI 842 Frequency
Loop Calibrator are 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 841/842 include these functions:
Function
Measure/supply a frequency
or a pulse count.
Step/Ramp functions
Communications port
Language selection
Measure pressure/Leak test
** Snapshot
Measure mA
®
HART
resistor
V dc output
Switch test
Other functions
*
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.
• 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.
DPI 841
DPI 842
* Yes
Automatic/Manual
IDOS or RS232
Yes
** External IDOS UPM
Up to 1000 displays with a date/time
stamp
No
0 - 55 mA
No
Yes
No
24 V
No
Yes
Hold, Maximum/Minimum/Average,
Filter, Tare, Scaled values, Backlight,
Alarm
WARNING
[EN] English -
Continued
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