GE Druck DPI 841, Druck DPI 842 User Manual

GE Infrastructure

Sensing

Druck DPI 841/842

Frequency calibrator and Frequency loop calibrator

User manual - K395

A 2

A 3

DPI 842

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K395 Issue 1

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

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 supply) ............. 3

To start - Set up the settings ..................................................... 4

To start - Edit functions ................................................................ 4

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

Operation - Frequency connections ...................................... 6

Operation - Communications port connections .............. 6

Operation - Measure Hz or count pulses ............................. 6

Operation - Change the output values ................................. 6

Operation - Supply Hz or pulses .............................................. 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 (Hz - input/output) ................... 10

Calibration - Procedures (mA input) .................................... 11

Calibration - Procedures (Amplitude output) .................. 11

Calibration - Procedures (IDOS UMM) ................................. 12

Specification data ............................................................ 12

Specification - General .............................................................. 12

Specification - Frequency ........................................................ 12

Specification - Electrical connectors (A2) ......................... 12

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

Trademarks

All product names are trademarks of their respective companies.

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 DPI 841 DPI 842

Measure/supply a frequency or a pulse count.

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

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

* Refer to “Specification data”. ** Optional item

* Yes

stamp

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.

Continued

[EN] English - 1K395 Issue 1

Safety (Continued)

• 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.

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 manual Battery

Ground (Earth)

Warning - refer to the manual

ON/OFF

To start

To start - Location of items …

Item Description

1. ❍ On or off button.

8. Display. Refer to A3

10.

11. Connection point for some of the optional

12. Battery compartment. Refer to B1.

13., 14., 15. DPI 842 only. Terminals to measure current, to supply

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.

Selects or accepts an item or value.

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. Terminals to measure (IN) or supply (O UT) a

OUT

frequency or a pulse rate. Refer to “Operation”.

accessories. Refer to the datasheet.

24V source, and to do switch tests.

A1 A2

To start - Items on the display

Item Description

16. DPI 842 only. Task indication for the switch test.

17. DPI 842 only. The loop power supply is on.

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. kHz The units or a speci fied scale (x:y) - (Table 4/5)

5.0V

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)

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)

, , =

...V The input trigger level (Table 4) or the output

amplitude (Table 5).

, ... ,

= Tare

press the soft-key below it. Example:

= Move left = Move right

selection.

x:y Scaling (Table 4).

OK = Accept the new text label

Shift = Change the keys: 123ABC or -_+abc

= Add a space

BS = Back space (Delete character)

= switch open

Output waveform (Table 5)

= 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.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

2 - [EN] English K395 Issue 1

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To start - Power on or off

To turn the instrument on or off, press ❍ (A1 - item [1]). Th e 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:

Select Task

(Table 2) (Table 1) [✓]/[ ]

▲ ▼

Menu: Set Up

▲ ▼

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)

Descript ion

DPI 842 only. To add a series resistor into the mA circuit. You can then use this instrument together with a HAR T® communic ator to 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 applicable 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.

Menu:

Select Tas k

(Table 2/3)

▲ ▼

Display:

Hz 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)

IDOS UMM only. An IDOS measurement task.

UPM only. A leak test.

Description

Hz or

An input measurement task:

Pulses

Hz - Measure the frequency Pulses - Count the number of pulses

Hz or

An output task:

Pulses

Hz - Supply an output frequency

Pulses - Generate a specified number of pulses mA DPI 842 only. A mA measurement task. mA(24V) DPI 842 only. A mA measurement task + the loop

power supply is on .

DPI 842 only. 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) x (2) x x (2) mA(24V) (1) x (2) x x (2)

IDOS (1) (2) (2) (2) x x

Hz Hz Pulses Pulses IDOS (1) (1) (1) (1) (1)

x x (2) x x (2) xxxxx(2)

= DPI 842 only

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