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 [EN]  English - 1

K346 Issue 2

Table of Contents

Introduction ......................................................................... 1
Safety ..................................................................................... 1

Safety - Marks and symbols on the instrument  ............... 2

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  ............................................................ 3
To start - Set up the basic operation ..................................... 3
To start - Select a task (Measure and/or simulate) ......... 3
To start - Set up the settings  ..................................................... 4
To start - Edit functions ................................................................ 5

Operation .............................................................................. 6

Operation - Thermocouple connections .............................. 6
Operation - Communications port connections  .............. 6
Operation - Measure thermocouple values ....................... 6
Operation - Change the output values ................................. 6
Operation - Simulate thermocouple values ....................... 7
Operation - Transmitter calibration ....................................... 7
Operation - mA measurements ............................................... 8
Operation - Switch test  ................................................................ 8
Operation - UPM Pressure measurements ......................... 9
Operation - Error indications ..................................................... 9

Maintenance .....................................................................  10

Maintenance – Clean the unit ................................................  10
Maintenance – Replace the batteries  ................................ 10

Calibration .........................................................................  10

Calibration - Before you start .................................................  10
Calibration - Procedures (mV input or output) ...............  10
Calibration - Procedures (CJ input) ......................................  11
Calibration - Procedures (mA input) ....................................  11
Calibration - Procedures (IDOS UMM) .................................  11

Specification data  ............................................................  11

Specification - General .............................................................. 11
Specification - Temperature ranges ...................................  12
Specification - mV range ..........................................................  12
Specification - Electrical connectors (A2)  .........................  12

Customer service  ............................................... Back cover

© 2005 General Electric Company. All rights reserved.

Trademarks

All product names are trademarks of their respective companies.

Introduction

The DPI 821 Thermocouple Calibrator and DPI 822 
Thermocouple 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 821/822 include these functions:

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 locations with explosive

gas, vapor or dust. There is a risk of an explosion.

Continued

Function

DPI 821

DPI 822

Measure/simulate 
thermocouple temperature 
or mV

* Yes

*

Refer to “Specification data”.

** Optional item

Cold Junction (CJ) 
compensation

Automatic/Manual

Step/Ramp functions

Automatic/Manual

Communications port

IDOS or RS232

Language selection

Yes

Measure pressure/Leak test

** External IDOS UPM

** Snapshot

Up to 1000 displays with a 

date/time stamp

Measure mA

No

0 - 55 mA

HART

®

 resistor

No

Yes

V dc output

No 

24 V

Switch test

No

Yes

Other functions

Hold, Maximum/Minimum/Average, 
Filter, Tare, Scaled values, Backlight, 
Alarm

Summary of Contents for Druck DPI 821

Page 1: ...Thermocouple calibrator and Thermocouple loop calibrator User manual K346 GE Infrastructure Sensing 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 2: ...K346 Issue 2 A1 A2 DPI 822 A3 10 1 3 4 2 5 6 7 9 8 A2 A3 11 B1 12 14 15 13 20 21 22 25 17 18 26 19 27 16 23 24 B1 Customer service Visit our web site www gesensing com ...

Page 3: ...mes are trademarks of their respective companies Introduction The DPI 821 Thermocouple Calibrator and DPI 822 Thermocouple 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 ...

Page 4: ...Selects or accepts an item or value Selects or cancels a selection 7 Right hand soft key Selects the function above it on the display Item 25 Example Settings 8 Display Refer to A3 9 SENSOR PC Communications port Use to connect a Universal Measurement Module UMM or a RS232 cable 10 Thermocouple connector Refer to Operation 11 Connection point for some of the optional accessories Refer to the datas...

Page 5: ...applicable international temperature scale IPTS 68 or ITS 90 CJ To select the type of cold junction CJ compensation Automatic The instrument monitors the CJ temperature and applies the necessary CJ compensation Manual Measure the CJ temperature and set the applicable value The instrument uses this value to apply the necessary CJ compensation Additional data Manual Select Settings To select and set...

Page 6: ... type K J T 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 Additiona...

Page 7: ... If applicable Description Step To select and set up values for the Step output Example output cycle Auto Repeat Optional Additional data Table 6 Select Settings Step To select and set up values for the Defined Step output Example output cycle Auto Repeat Optional Additional data Table 6 Select Settings To select and set up values for the Ramp output Example output cycle Auto Repeat Optional Addit...

Page 8: ...ure thermocouple values To measure the temperature or mV values of a thermocouple 1 Connect the instrument Figure 1 and if necessary adjust the Set Up Table 1 2 Select a T1 or mV input task from Select Task Table 2 3 and if necessary adjust the Settings Table 4 Figure 1 Example configuration To measure the temperature or mV values of a thermocouple Operation Change the output values When the outpu...

Page 9: ...mocouple Operation Transmitter calibration DPI 822 only To calibrate a transmitter 1 Connect the instrument Figure 3 4 and if necessary adjust the Set Up Table 1 2 Select the applicable calibration task from Select Task Table 2 3 and if necessary adjust the Settings Table 4 5 3 Supply the output values to the system Table 7 Figure 3 Example configuration Transmitter calibration with external loop ...

Page 10: ...losed 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 an...

Page 11: ...he Settings Table 4 5 2 If necessary do a zero correction Table 4 To measurepressure withanother operation Figure 8 use the same procedure Figure 8 Example configuration To measure pressure and temperature UPM Leak test To do a leak test on a pressure system Figure 7 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 Se...

Page 12: ...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 input or output 1 Connect the instrument to the calibration equipment mV input Figure 1 mV output Figure 2 2 Let the equipment get to a stable temperature minimum 5 minutes since the last powe...

Page 13: ...re that the calibration is correct select the applicable mA input task Table 2 and apply these values mA 55 40 24 18 12 6 0 short circuit Then mA 0 6 12 18 24 40 55 5 Make sure that the error is in the specified limits Table 11 Table 11 mA input error limits Calibration Procedures IDOS UMM Refer to the user manual for the IDOS UMM When the calibration is complete the instrument automatically sets ...

Page 14: ...38 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 ...

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