Add1te1

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

1.1 Basic configuration

1.2 Terminal introduction

1.3 Keypad

1.3.2 Data inputting function

1.5 Main interface definition

1.6 Menu introduction

1.6.2 Operation steps

1.6.3 Main menu

1.6.4 Calibration menu

2.1 Pressure measure function

9

10

11

7

8

8

11

12

13

15

Ⅰ

2.1.5 Overpressure warning

2.1.6 Resolution adjustment

2.2.2 Electricital measure

2.2.2.1 Current zeroing

2.2.3.1 Voltage zeroing

2.2.5 Pressure switch measure

2.2.5.1 Operation

2.2.5.2 Attentions

2.2.7 Switch display resolution

2.3 DC24V output function

2.4 Backlight function

2.5 Buzzer function

Ⅱ

18

18

19

20

21

22

22

19

19

19

23

23

2 6 Adjust real time function

2.7.2 Submit data automatically

2.7.3 Communication instructions

2.7.4 Software

3.1 How to operate save menu

3.1.2 Delete data

3.1.3 Send data via serial port

3.1.4 Set file attributes

3.1.5 Delete all data

3.1.6 Send all files via serial port

3.1.7 Set save mode

3.1.8 Enter save-file status

3.1.9 Quit save-file status

3.2 Use manual mode

3.3 Use hour-record function

3.4 Use interval-record function

3.5 Automatic logging with startup

24

25

25

26

26

32

32

33

34

30

30

31

31

28

29

29

29

III

4.3 Display status

4.4 Detective linkage

4.5 HART function introduction

4.5.2 Function 2: Display PV range, switch PV unit, transfer PV range

4.5.3 Function 3: Display and adjust damp time

4.5.4 Function 4: display CP value and PV value

4.5.5 Function 5: display CP value and AO value

4.5.6 Function 6: Display CA and AO value

4.5.7 Function 7: Loop analog current test, AO calibration

4.5.8 Function 8: PV calibration process

4.5.9 Function 9: Special calibration function

4.5.11 Function 11: HART 5.0

5.1 Calibration condition

5.2 Calibration menu's operation and content

5.3 Pressure calibration

IV

44

44

46

48

41

42

43

43

49

36

36

37

49

49

49

5.4 Cancel pressure calibration

5.5 Current calibration

5 6 Cancel current calibration

(2) Pressure switch calibration

(3) Pressure transmitter calibration

(2) Instruction details

(3) The file's transfer format

(4) Pressure units shortening list

(5) Pressure units info code

(6) The format of automatically data transfer

(7) Wrong sequence number explanation

(8) HART function's return format

55

56

62

63

63

58

62

62

62

V

52

52

52

Welcome to your ADT672

This detailed user's manual will help you became familiar with the many features of ADT672 Calibrator. The simple step-bystep instructions will quickly guide you through the procedures for using the calibrator and other items needed for accurately testing and calibrating numerous types of instruments.

All products made by Additel are warranted to be free of defects in workmanship and materials for 1 year from the date of shipment. No other express warranty is given, and no affirmation of Seller, by words or actions, shall constitute a warranty.

SELLER DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR

PURPOSES WHATSOEVER.

If any defect in workmanship or material should develop under conditions of normal use and service within the warranty period, repairs will be made at no charge to the original purchaser, upon delivery of the product(s) to the factory, shipping charges prepaid. If inspection by Additel or its authorized representative reveals that the product was damaged by accident, alteration, misuse, abuse, faulty installation or other cause beyond the control of Additel, this warranty does not apply.

ADDITEL MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL, INCLUDING, BUT NOT LIMITED

TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Please Notice: The product specifications and other information contained this manual are subject to change without notice.

Additel has made a concerted effort to provide complete and current information for the proper use of the equipment. If there are questions regarding this manual or the proper use of the equipment, contact Additel at:

TEL: (714)998-6899 E-MAIL: [email protected]

FAX: (714)998-6999 WEB: www.additel.com

1

For your safety

Media & Overpressure:

(Higher than 400kPa): media compatible with 316 Stainless Steel.

~Overpressure: 120%.

Warning:

D appears.

Do not disassemble the calibrator. Any problem caused by this is not covered under warranty.

2

Specification

+Pressure ranges

Gauge Pressure

1

'

1

P/N

V15

GP2

GP5

GP10

GP15

GP30

GP50

GP100

GP300

GP500

GP600

GP1K

GP2K

GP3K

600

1,000

2,000

3,000

GP5K 5,000

GP10K 10,000

GP15K 15,000

GP20K 20,000

GP25K 25,000

GP30K 30,000

GP36K 36,000

GP40K 40,000

Pressure

Range

{psi)

-15

2

5

10

15

30

50

100

300

500

40

70

140

200

350

700

1,000

1,400

1,600

2,000

2,500

2,800

Pressure

Range

{bar)

-1.0

0.16

0.35

0.7

1.0

2.0

3.5

7.0

20

35

Media[21

Accuracy

{% FS)

G

G

0.02 (0.05)

0.02 (0.05)

G 0.02 (0.05)

G 0.02 (0.05)

G, L~

0.02 (0.05)

G, L~ 0.02 (0.05)

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

G,L

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.02 (0.05)

0.05 (0.1)

0.1

0.1

0.1

0.1

0.1

Burst

Pressure

3X

3X

3X

3X

3X

2X

2X

3X

3X

3X

3X

3X

3X

3X

3X

3X

3X

1.5X

1.5X

1.5X

1.5X

1.1X

3

Absolute Pressure

PIN

Pressure Pressure

Ran He

Ran~e Media

(psi (bar

AP5

AP10

AP3K

AP5K

5

10

15 AP15

AP30 30

AP50 50

AP100 100

AP300 300

AP500 500

AP1K 1000

3000

5000

0.35

0.7

1.0

2.0

3.5

7.0

20

35

70

200

350

Accuracy

(% FS)

Burst

Pressure

G

G

0.1

0.1

3X

3X

G

G

G

0.1

0.1

0.1

3X

3X

3X

G, L 0.05 (0.1) 3X

G, L 0.05 (0.1) 3X

G, L 0.05 (0.1) 3X

G, L 0.05 (0.1) 3X

G, L 0.05 (0.1) 3X

G, L 0.05 (0.1) 3X

Note: [1]. Sealed gauge pressure for above 1000 psi

[2]. G=Gas, L=Liquid

[3]. 0.02% FS for gas media only stability.

4

No~:

[1]

1-12Yifswikh hllS ~

+Working environment: a. Temperature:(-10- 50)'b; c. Atmosphere pressure :( 86 - 106)kPa.

+Storage Temperature: -20'b - 70'b. b. Relative humidity:<95%;

+RS232 parameter: Baud rate 1200, 2400, 4800, 9600; Data length is 8 bits; stop bits is 2; address is from 1 to 112.

+Clock Format: [Y/M/D H:Ml the range of year is 2000-2099, 24 hours.

+Save file capacity: 30 files, 40 records per file.

+Save file mode: Manual mode and automatic mode (includes hour-record and inteival-record "from 1 second to 100 hours").

+Display: Big segment FSTN LCD with dual lines, grey background and blue backlight.

+Power supply: Polymer Li-ion rechargeable battery or 1 OV charger.

+Charge mode: Special 1 OV charger (Charge time is 4 hours) .

+Battery life: 40 hours (The battery icon will flash and buzzer will beep if low power; It will automatically power off prior to any accuracy degradation).

+Re-calibration period: One year.

+Size: <I> 120mmx 46mm, total 184mm high.

+Weight: 0.7kg.

+Electric connection: IN/SWITCH measure: standard <1>4mm jack

Recharge: standard <I> 4 rechargeable socket

DC24V output: standard <1>4mm jack

RS232: standard DB9 socket

+Pressure connectors: 1/4" NPT or 1/4" BSP male

Other connections available per request

0.156 inch (<1>4 mm) test hose (for differential pressure)

5

Description

1.0Summary

The ADT672 is a portable digital pressure calibrator designed to be a rugged calibration tools which has the functions to calibrate and maintain pressure instruments.

Features:

© High-accuracy pressure measure &wide-range temperature compensation

®

HART communication

@

RS232 port to connect with computer

(!)Assistant measure function for time and temperature

®

Measure function to mA, V and switch

@

DC24V output

@ Data logging

@ A/C or DIC (rechargeable battery)

According to about functions, ADT672 also have some other common functions as below:

©Record the peak pressure

®

Pressure leak test

@

Data logging

®Indicate o/o pressure

@Trigger switch control

@Communicate with HART pressure transmitter

As

a master gauge(or reference gauge), ADT672 digital pressure calibrator is to measure or calibrate pressure instruments such as pressure transmitters, differential pressure sensors, pressure switches, precision pressure gauges, industry pressure gauges, sphygmomanometers, pressure transducer and others.

6

7

SW V mA COM 24V

Units

DIGITAL PRESSURE CALIBRATOR

0 25 50 75 100

A

!

Additel Corporation

Units

8

CD

Confinnation (/).

8

1

11 function: backlight; 2

1111 function: move decimal digit left(+-).

8

1 11 function: Under the status of file saving, press it once to save a new record or exit;

2"d function: Under the status of non-saving, press it to enter into the save file menu;

3ra function: Move decimal digit right (-+).

1 function: Press to send out data via serial port;

2nd Adjust the resolution between 5 and 6 digits;

3n1 function: Move decimal digit up (

j ).

2nd function: Switch the display resolution of current/voltage/temperature;

3nj function: move decimal resolution down (

! ).

1.3.2 Data inputting function

• (+--), A(-+) Move decimal digit left and right

( ~ )

Increase/decrease the pressure value

CD

Confinn the inputted data (+--) fi)

Cancel the inputted data (ESC).

Battery level: Three bars show the battery level, ADT672 will auto shut off if battery is too low.

~

Date and time: [Year/Month/Day Hour: Minute] .

~

Communication:

If this icon is appear, 3 roll bars indicate the ADT672 is sending out the data via RS232.

~

9

HART

24V

HART

0 25 50 75 100

A

V

0 25 50 75 100

A

10

(1) The default of main interface is:

~ Electricital measure mode is current, five digits display

~ Pressure measure displays five digits

~ The pressure unit defaults to the pressure unit selected at time of order

Example: As to the calibrator with (0-100) kPa, the default pressure unit is kPa.

(2) When in data logging mode, the default of main interface is:

~ Pressure measure displays five digits

~ The pressure unit defaults to the pressure unit selected at time of order

1.6 Menu introduction

1.6.1 Enter into menu

Includes main function menu and calibration menu, refer figure1-6-1.

1.6.2 Operation steps

Enter main menu

Press

Select sub-menu Enter sub-menu fl» to return to the previous menu or exit.

11 main interface press shortly

(i) l main menu press shortly

8 main interface press longer

8 input password[2003] l press shortly

0 l calibration menu press shortly

8

Figure 1-6-1: How to enter into the menu

1.6.3 Main menu

Main menu

I.PE

RH

(peek record)--C higher peak value lower peak value

2l E

(pressure leak test)l5E

t

(set time)

35(H

{selecttriggertype)

t- -

{no trigger)

2.f! a {off --+ on)

3.af! (on -+off)

If.'! a'!

(off ---+ on ---+off dual trigger)

5.a '!a (on --+off--+ on duel trigger)

0.

select file (View only; user must select a file's number firstly to enter into the next menu)

tSH

{check a file)

2.dEL (delete a file)

lf.F

ll

E

(file setting

35End (send a file)

If.SH

{set e file)

5.R _ dfl (delete all files)

6.R_

Sf d (send all files)

'lSRUE (save mode setting>-C tHRnd {manual) a5El

{start file save) 2RUl:O (automatic)

t

l200

5.232(RS232setup)--C lRdd(addresssetup)

2bRU (baud rate set

___J::

2

.i'LfOO up)C 3.LfBOO

-f tHOU,.. (hour record)

2.

IOH

(interval record after start up)

(stertto seveautometicallyefterstartup

_ONon-startup,_ lstartup)

6.H(

{adjust time)

'lD2LfU (set24Vtime) {

w _

ID

(1 Ominute)

2D_30

(30m~nute)

3D_60 (60mmute) lf.D_on

(keep turning on)

B.bEEP (buzzer setting)

--C::

WFF

(turn off)

2Dn

(tum on)

4.9600

9.R In

(HART resistance setting)--c:: lR _ Q (outer resistance)

2R _

I (inner resistance)

12

1.6.4 Calibration menu

O.PRSSinput password(2003) calibration menu

(pressure calibration)

2.P_D/I

(pressure calibration executed, cancel calibration)

3. l_[Al

(current calibration)

'i.l_D/I

(current calibration executed, cancel calibration)

5.LJ _ [Al

(voltage calibration)

6.LJ _ [] / I

(voltage calibration executed, cancel calibration)

1.2 E f. []

(zeroing before pressure is canceled)

N.B:

CD

~~ ~ ~ ~

:

Not a selectable menu item but for viewing only. If enter into the menu, please input the correct

®

password.

2.P _ [] / I

The calibration status. 0: Not calibrated, 1: calibrated. Caution: once selected the prior results can't be restored. The calibration methods of currenVvoltage are same as pressure calibration.

13

Add itel

Cor por atio n

Additel

Corporation

(1)

Additel

Corporation

(3)

(2)

Additel

Corporation

(4)

14

15

Units

0 25 50 75 100

16

17

0 25 50 75 100

Units

18

2.2 Electrical measure function

2.2.1 Switch measure items

By pressing

@ .

2.2.2 Electrical measure

Electrical terminal is:

©l

mA ©COM

2.2.2.1 Current zeroing

If it is in the range of (O± 0.2%FS), please clear the current value to zero by pressing

zfl .

2.2.3 Voltage measure

Electricity terminal is:

©

V ©l COM

2.2.3.1 Voltage zeroing

If it is in the range of (0± 0.2%FS), please clear the voltage value to zero by pressing

Zero:::J.

2.2.4 Temperature measure

The range is (-20-BO)'t and resolution is 0.1 't. This function is to measure the internal temperature of ADT672.

2.2.5 Pressure switch measure

Electrical terminal is ©SW

Indication icons:

©l

COM

~ is switching off _ / o is switching on - o - .

There are five triggering modes as listed below:

19

(1) Press

8 to enter into the main menu, select

3.5 ( H

(SWITCH) by using

CD .

(2) Screen shows triggering mode menu, please select the suitable mode by using

0 .

2.2.5.1 Operation

The factory default is trigger is off.

(1) No trigger: Monitor switch status and the screen is not in a locked condition.

I. no trigger

2. ~

0 off--+ on

3. o~ on-+off lf. ~ ~

5.

O

~

O on --+ off--+ on dual trigger

Figure 2-2-5: Trigger mode selection

(2) Triggering off---+on: The screen is locked while the trigger is being changed. Also, the screen shows the pressure value and switch status.

Press

CD to restart a new trigger.

(3) Trigger on---+off: The screen is locked while the trigger is changed.

Also, the screen shows the pressure value and switch status. Press

CD to restart a new trigger.

(4) Trigger

off---+on---+off :

It is combined by the mode 2 (off-+on) and mode 3 (on-+off), it have three steps as following:

1

11 step: The screen is locked after it is changed from "off" to "on", please unlock the screen by pressing

0 ;

2"d step: The screen is locked after the trigger status changed from restart

•

' n n u

0

' n

3 pressure measure value switch status is "off"

J switch "on" a u

H~o

I

L

~

9 trigger lock the

f

U . -,

pressure value

Figure 2-2-5-1: trigger "off"-+"on" process

20

21

"on" to "off", please unlock the screen by pressing

CD ;

3rd step: Go back

to

1st step to restart the trigger.

(5) Triggering on~n: and mode 2 (off -on), it has three steps as below:

1 "' step: The screen is locked after it is changed from "on" to "off", please unlock the screen by pressing

0 ;

2nc1 step: The screen is locked after the trigger status changed from

"off" to "on", please unlock the screen by pressing

0 ;

3rd step: Go back to 1st step to restart the trigger.

IDD.li3

0 oressure measure value switch status is "off' switch 'on' l

Orestart

IDD. 19

H~o~ hold screen t f

•n9uo trigger th_e_p_ress-ure-va-lu-e f U switch "off' '"B

•

•O w

"olf" --+ 'on " o H~o unlocked

2.2.5.2 Attention

Figure 2-2-5-2 "off" -"on" -+"off" dual triggering

(1) Switch can take DIC (1-12V). Please distinguish the anode and cathode.

(2) At the status of file saving and trigger mode, the ADT672 will save one record automatically at the moment of triggering and there is no need to press

8 .

2.2.6 Count-down leak test

This function is to measure the chamber's sealed performance, as below:

(1) Connect the ADT672 with chamber, supply a certain pressure P1.

(2) Please record the second pressure P2 when the set time T is arrived.

(3) According to the margin of P1 - P2, user can confirm if the sealed performance is good.

24V 24V

22

2.3.2 DC24V timing output

This function is to protect the unnecessary power consumption if user forgets to close DC24V.

The operation steps as following:

(1) Please select

'J.O ~ Lf

(,)(output 24V) in the main menu.

(2) As figure 2-3-2 Screen, screen shows the time options of DC24V output.

(3) When the selected time is up, the DC24V output is closed automatically.

Remark: under the condition of HART communication, DC24Voutputfunction

is

notenobW

I. D _ ID

2. 0_30 u n nn

,. U-UH

1 Ominute

30minute

3. 0_60

SO minute keep turning on

2.3.3 Protection for short-circuiting and over current

Figure 2-3-2 DC24V time setup

ADT672 will tum off and beep automatically if there is any short-circuit or over current(> 150mA) between 024V andOCOM.

When the alert ceases, DC24V will go back to normal status.

2.4 Backlight function

In the main interface, press

8 to control the backlight.

2.5 Buzzer function

User can set up buzzer status as below:

(1) Select the

S.b ff ftBEEP) in the main menu.

(2) Select on or off to enable or disable the buzzer (see figure 2-5).

I.

2.

D turn off an turnon

Figure 2-5 Buzzer option

23

Remark:

The factory default setting is on, meaning the buzzer is enabled.

Buzzer will beeps under the following conditions

2

3

5

6

7

8

9

The plugging adapter beeps once.

24

2.7 RS232 communication function

2. 7 .1 Set RS232 serial port

RS232 communication parameter is below:

CD

Address range is (1-112), factory default is 1;

®Baud rate is (1200, 2400, 4800, 9600), factory default is 9600;

••

•

2.

Rd d

(ADDRESS) b R

(BAUD RATE)

Figure 2-7-1-1 : Serial port setup

@

The data length default is 8; 2 stop bits; no calibration bit; no data flow control.

@

Hardware port: Standard

089

socket (2 feet is TICD, 3 feet is RXD, 5 feet is GND)

"DI

cursor be in in osition

The setup method for address and baud rate is below: a. Select the option

5.r

3 r

(RS232) in the main menu.

Figure 2-7-1-2: adjust address b. Figure 2-7-1-1 displays the setup menu. User can select the communication address or baud rate. c. Figure 2-7-1-2 shows the current address and allows for correction. d. The cursor position is displayed in the current option of baud rate if the baud rate is selected.

2. 7 .2 Submit data automatically

By pressing

.§. appears and the ADT672 is sending the measuring data via RS232 port, meanwhile, 3 bars rolls in turn; by pressing the icon~

Please refer the data sending format in appendix [ communication protocols ) .

2.7.3 Communication instructions

Please refer the APPENDIX II [ communication protocols ) for more information.

2.

3.

Lf.

'·

•

·~nn

•cuu

2Lf00

LfBOO

9600

Figure 2-7-1-3: Baud rate option

25

0 25 50 75 100

26

27

0 25 50 75 100

0 25 50 75 100 0 25 50 75 100

Remark: The saved pressure value and electricity value is 6 digits.

0 25 50 75 100

A

0 25 50 75 100

0 25 50 75 100

28

29

0 25 50 75 100

0 25 50 75 100

0 25 50 75 100

Remark: Please refer sending data format in the appendix II: communication protocol.

30

Automatic mode includes hour record and interval record. The cursor points to the current mode.

As figure 3-1-7-2, the 3n1 item could decide if the automatic mode is operated automatically after start-up.

[ 0] : After start-up, it will not operate automatically; ( 1 ] : After start-up, it will operate automatically. e. If select

I. H LJ ~

(HOUR), it returns to the file menu. Then, a record is saved every hour. f. If select the c.

In~ l

(INTERVAL), the screen enters into the interval interface. (The interval range: 1 second - 99 hours

99 minutes and 99 seconds). After setup, it returns to the record mode. Then, a record is saved at every interval. g. If select item

3. ~ LJ _ CJ

(RUN_O), screen displays

3.

~ LJ _ I is long-term logging.

3. ~ LJ _ CJ

(RUN_ 1 ). Item

3. ~ LJ _ CJ is short-term logging,

Remark: If long-term record mode is set,

the

electricital

type

and pressure unit cannot be cht111ged.

3.1.8 Enter save-file status

The operation steps: a. Select as

El and press

0

Under the manual mode: cursor points to saved file's serial number;

Under the automatic mode: cursor points to the previous file's serial number. b. Please return to the main interface by pressing

Ci) , then ADT672 enter into the save-file status.

3.1.9 Quit save-file status

Press

8 to quit.

31

3.2

Use manual mode

(1) In the main interface, enter into the file menu by pressing

8 .

(2) Select the file's serial number(1-30) by using

(3) Select

9' . . press

'{5 E to set file's attributes (optional).

(4) Select

(5) Select

0

'l.5 R LJ f to save and go to the next menu. l.H Rn d

(hand) manual mode. The screen returns to file menu. to confirm.

(6) Select e.s El to enter the save function. If file is vacant, the cursor will point to the first record. Otherwise, the cursor points to the last record.

(7) Press

8 once to save a record in the main interface. Meanwhile, the record in the right reading area will add 1 (1-40).

3.3

Use hour-record function

(1) Press

8 to enter into the file menu in the main interface.

(2) Select a file's serial number by using

~

0 .

Under the record mode, the starting position always points to the previous. Example: The No.20 record of 10th file of last the entry is No.1 file of this time. After entering into the automatic mode, the next new position is 21

11 record of No.1 O file.

(3) If user initialize save position, select

5.R _ d fl to delete all data. The new position is No.1 record of No.1 file.

(4) Select lf.5 E to set the file's attributes (optional).

(5) Select

'l.5 R LJ f to save and go to the next menu.

32

(6) Select

(7) Select l HD

LJ ~ hour record mode and the screen returns to the file menu. as

El to startup the save function. The cursor points to the previous saved position.

(8) In the main interface, it saves a record each hour till all 40 records are saved. Then, it will automatically switch to the next file until all file's storage is full. After that, it will automatically switch to the file No.1 and continue saving.

3.4 Use interval-record function.

(1) Enter into the file menu by pressing

(2) Select a file's serial number by using

8 in the main interface.

0 .

Under the record mode. The starting position always points to the previous. Example: The No.20 record of 10th file of the last entry is No.1 file of this time. After entering into the

(3) Select

(4) Select

(5) Select

(6) Select n

11 record mode, the next new position is 21 record of No.1 o file.

5.A _ d fl to delete all file's data and initialize the save position. The new position is 1

11 record of 1• file.

Lf.5

'l.5 f

~

R

to

set the file's attributes (optional).

C. :

LJ f to set the save mode and enter into the next menu.

~ l

(interval record mode) to enter into the interval setup interface.

(7) Time format is Hour: Minute: Second (Maximum: 99 hours and 59 minutes and 59 seconds; Minimum: 1 second). After time is set, please goes back

to

automatic mode by pressing

(8) Select

CD and goes back to the file menu option by pressing

8 . e.s El to startup the save mode. In the main interface, the save file's position keeps same as the previous.

(9) In the main interface, it saves a record each hour till all 40 records are saved. Then, it will automatically switch to the next file till all file's storage is occupied. After that, it will switch to the file No.1 once again and continue the new saving.

33

3.5

Automatic logging with startup

Set the 31.t item in the record mode menu as

3. fLJ _ 0 and it goes to the automatic mode after the ADT672 is restarted.

The record status has following features:

(1) Electrical type remains the same as the previous setting(5 digits to display).

(2) Pressure measure displays 5 digits.

(3) Pressure remains the same as the previous setting.

To quit this function:

(1) Set record mode 31.t item

3.

1-LJ _

0.

(2) Or, change save mode to manual mode.

HART

communication function

4.0 Connect HART

Before using HART function, the user should know the following:

(1) If the transmitter is HART and its current type.

(2) If the transmitter is supplied by external power or 24V of the ADT672.

(3) If the 250 Q sampling resistance is supplied externally or by the ADT672 (The default is supplied by the ADT672).

34

HART type transmitter has three kinds of connection types (see figure 4-0). It is recommended to use the first type.

1 .. inner

24V,.

inner R

2,

outer

24V,.

outer R

ADT672

24V mA COM

0 0 0 a

:::>

~

!l

~+O

!!?.

"CJ

~

10

0 0 0

COM 24V mA

ADT672

3,. outer

24V,

inner R

~

~+O

!!?.

"CJ

~

10

0 0 0

COM 24V mA

ADT672

*

24V

is HART+, mA is HART-

Figure 4-0: HART communication wiring diagram

4.1 Set inner/external sampling resistance

(1) Select

9.R In

(R_IN) in main menu.

(2) As figure 4-1, screen displays the selection menu. (lhe def au It is inner resistance)

(3) Press

CD to select the suitable resistance and return to the main menu.

4.2 HART communication operation

The basic operation steps are:

(1) Select the suitable wiring connection and connect the HART type transmitter.

(2) Press

~

35 f.

R _ D outer resistance

2.. R _

I

inner resistance

Figure 4-1: select sampling resistance

HART

24V

HART

0 25 50 75 100

A

36

37 calibrator

Units

DIGITAL PRESSURE CALIBRATOR

0 25 50 75 100

A pressure zeroing input account input

4 20

(2) The abbreviated words of the ADT672:

PV (Primary variable): The pressure measured by HART transmitter

CP (Calibrator pressure): The pressure measured by calibrator ADT672.

AO (Analog output): The analog output current value set by HART transmitter.

CA (Calibrator amp): The current value measured by calibrator ADT672.

Sensor range: It is the rated pressure for the sensor in transmitter (Over pressure may cause damage).

PV range: The rated range in HART transmitter (Lower limit is corresponding

to

4mA, higher limit is corresponding to 20mA).

Actual range: The actual range used in HART transmitter (Lower limit is corresponding to 4mA, higher limit is to 20mA).

(3) HART function's serial number is displaying in the status area, as

F I is function 1.

(4) As figure 4-5, HART pressure transmitter includes: PV calibration and AO calibration.

11J. PV calibration: The calibration is between PV and AO. Supply the pressure to transmitter. The max/min pressure is same as the higher/lower limit of transmitter. The actual pressure will have a linear relationship with the current range (4-20mA) of AO. The PV calibration has same function as the pushbutton

[ SPAN ] & [ZERO ] calibration in the transmitter.

llJ.

AO calibration: The calibration is between AO and CA (4-20mA). The transmitter outputs 4mA & 20mA, the CA value measured by calibrator is sent to the zero register and span register. Then, AO output value is approximating same as the CA measure value.

Example: The actual range of HART transmitter is 0-16kPa, current output is 4-20mA, 0.1 o/oFS accuracy.

38

The every parameter changing like as following list:

Supplied pressure

00.000 kPa

16.000 kPa

PV value

00.010 kPa

16.020 kPa

Before calibration

PV range AO output

00.000kPa

16.000 kPa

4.001 mA

20.020mA

Supplied pressure

00.000 kPa

16.000 kPa

PV value

00.010 kPa

16.020 kPa

Calibration

PV range

00.010kPa

16.020 kPa process

AO output

4.024mA

20.061 mA

CA valua

4.024mA

20.061 mA

Maximum error

0.15%

0.38%

CA valua

4.024mA

20.061 mA

Maximum error

0.15%

0.38%

Suppliad prauura

00.000 kPa

16.000 kPa

Process 1: PV calibration

PV value

00.010 kPa

16.020 kPa

Process 2: AO calibration

After calibration

PV range AO output

00.010 kPa

16.020 kPa

4.000mA

20.000mA

CA value

4.001 mA

20.002mA

Maximum error

0.006%

0.012%

From above lists, the transmitter is unqualified before calibration. However, it meets the accuracy requirements after calibration.

RellUll'k:PV and AO calibrations are

typical

for HART instrumentt. However, AO instn1ction aren't always available for some transmitters.

For this situation, the ADT672 has a special calibration method to meet the calibration requirements.

39

24V

HART

0 25 50 75 100

40

41

Units

24V

HART

0 25 50 75 100

24V

HART

HART

0 25 50 75 100

24V

0 25 50 75 100

24V

HART

0 25 50 75 100

24V

HART

0 25 50 75 100

42

Units

43

Units

24V

HART

HART

0 25 50 75 100

24V

0 25 50 75 100

24V

HART

0 25 50 75 100

24V

HART

0 25 50 75 100

A

HART

24V

0 25 50 75 100

24V

HART

0 25 50 75 100

A

44

45

24V

HART

0 25 50 75 100

24V

HART

0 25 50 75 100

A

HART

24V

0 25 50 75 100

A

HART

24V

0 25 50 75 100

A

24V

HART

HART

0 25 50 75 100

24V

0 25 50 75 100

24V

HART

A

0 25 50 75 100

24V

HART

0 25 50 75 100

A

24V

HART

A

0 25 50 75 100

24V

HART

0 25 50 75 100

A

46

47

24V

HART

HART

0 25 50 75 100

24V

0 25 50 75 100

24V

HART

HART

0 25 50 75 100

24V

0 25 50 75 100

24V

HART

0 25 50 75 100

24V

HART

0 25 50 75 100

A

48

~ Upper range reading trim

~ Factory default

4.5.11 Function 11: HART 5.0

Read the DUT's HART version number

Calibration function

5.0 Introduction

This function is recalibrate the ADT672. First allow a warm up time of 30 minutes. The ADT 672 should be run on battery power.

Exercise the gauge three times. Now, please start the calibration process. If the ADT672 is in irregular working status, please use default setting function.

Remark: The calibration mut be met the req11ired conditiom.

5.1 Calibration condition

(1) Environment:

Temperature: 20'C ± 2'C; Relative humidity: (45-75)

%;

Atmosphere pressure: (86-106) kPa; Power: recommend battery.

(2) Equipments:

Standard voltage source, standard current source, standard pressure source.

5.2 Calibration menu's operation and content

Please refer the [1.6 menu introduction].

5.3 Pressure calibration

Please read the following:

49

0 25 50 75 100

50

51

0 25 50 75 100 0 25 50 75 100 0 25 50 75 100

5.4 Cancel pressure calibration

(1) Enter into the calibration menu

(2) Select

2P I and press

CD ' the calibration is canceled if screen displays

2P -

5.5 Current calibration

a .

It is same as the pressure calibration. The default 3-points calibration points are:

©

First points: -30mA; ®Second point: O mA; @Third point: 30mA.

Please note the standard calibration point can be adjusted. The current calibration menu is

3. I_ ( L

5.6 Cancel current calibration

(1) Enter into the calibration menu

(2) Select l.f. I_ I and press

0 , the calibration is canceled if screen displays l.f. I _ [J .

5.7 Voltage calibration

It is same as the current calibration. The default 3-points calibration points are:

©

First points: -30V; ®Second point: O V; ®Third point: 30V.

Please note the standard calibration point can be adjusted. The voltage calibration menu is

5.LJ _ ( L .

5.8 Cancel voltage calibration

(1) Enter into the calibration menu;

(2) Select

6.U I and press

CD ' the calibration is canceled if screen displays

6.U -

5.9 Cancel previous pressure zeroing

a .

(1) Enter into the calibration menu;

(2) Select

1.2 E,. a and press

CD .

52

53

～

App1nch I: Typlcal 1ppllcatlon of ADT672

11 I

PrMaure

9111111•

c:alilr'lltion

TM

q>eradon

~

<D

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end

ADT872

en

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rllcaUoll

reg

tla1ion,

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ea

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refarence gllWg8toWllfly(celbnllll)1he iir-in CllllCI•·

(!)

.

.

54

55

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Opandfanatapaiw:

©

Ccllnectlhe p-re

ADT$72.

(2)

Prw

~

pwre

- - ·

aelllCt.,..,

ng

typ&

ti

1he menu

for

jll'8$8Ur&

tr1g"8flng

..,_re)

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to

abtl4)

l!'llP.

pleue

cannllCt

1he

111St In termNlll

cabl89. osw ca1Y1ect

•+•

af

awltch,

red calar,

OCOM

canned•-•

of awld\, billll:lt

color.

@Follow al

wlftlcalfon

NQ'*llclla.

tMI

ADT672 ae a relllfllnce gauge to cmllbnlte (wrtfy)

1h8 prauur&

awltl:h.

'

oo ·-

i

' I

!J}

Pr11111n t111W11Mlr e1lbwtlon

Opelll1lcn llepa -

folowfng:

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Comect

the prau1n

l111111mlllllr 8l1d

ADTm

o~~ ~re

@Pru.Ing

-to the cwrant lllflUUI'& ll9m. end

Pl.s8

0 to

1111/t 24Vollput. If

needa

ID

control

the

Ollput tml,pleue find

the related qltion ii

the menu.

<Zl

Aa

right

figure, comacttha p-ra transrritlJar

8lld

AO'm'2.

024V canned the

tnlnamtlef +,red

calor.

OMA OOIYlll':t the tlaMmltblr.

@

Rllowfng all

Wlfflcallon nlgllldons, take

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ea a rafarance

9111198 to l!J

cellbma

("'8111!1)

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~ 11##"1/•tll#JlUll'I'~=

56

Appendix II: Communication protocol

(1)

Instruction format

G) Data sending format:

A: X: Knnnn: CO: C1: C2: C3: C4+EOS (end of symbol)

A: 1 byte, the instrument's communication address

X: 1 byte, only for W (write) or R (read)

K: 1 byte,

M

(measure), F (File),

0

(others) nnnn: 2-5 bytes, the items operated by K instruction

CO: C1: C2: C3: C4: Parameter, please refer the specified instruction introduction

Eos: OxO (hex)

®Data returning format:

A: X: Knnnn: CO: C1: C2: C3: C4+ Eos, hereinto:

A: Instrument communication address

X: E or F, Eis error info of this frame dates, Fis feedback info

Knnnn: It is same as the instruction from upper machine

CO: C1: C2: C3: C4: Feedback data or error info

Eos: OXO(hex)

@

The communication setting of serial port

A(address): the range is 1 -112, factory default setting is 1

Baud rate: 1200, 2400, 4800 and 9600 is selected, the factory default setting is 9600

Data bit length: 8 bits

Stop bit: 2 bits

Parity digit: N/A

Data flow control: NIA

57

Eos

58

59

Eos

Eos

60

61

Eos

(3)

The file's transfer format

Filename: F01

Number: 111111

Minscale: 001.000

Datesum: 01

No.01 06/07/03 10:29:53

0.0108MPA

-0.0000rnA r

File name*/ r the serial No. of second gauge */ r

Minimum scale value*/ r the saved points in file*/ r

Point number, save date, time */ r

Pressure measure value */

I* Electricity measure value */

(4) Pressure units shortening list

Shortening

Standard

H,O mmH,O

HG mm Hg

PSI psi

MBAR mbar

BAR bar

(5) Pressure units info code

Info code use 1 byte.1: this pressure unit is available; O: N/A

HG H,O PSI BAR

I

MBAR MPA

MSB

(6) The format of automatically data sending

The fonmat length is 32 bytes, and add the Eos OxO at the end.

Example: *P 0.0364 MPA *I -0.0001

*P 0.0367 MPA *V-0.0158

*P 0.0374 MPA *T 32.19 mA

V

'C

*P 0.0375 MPA *S 000000.0 0

*P 0.0397 MPA *L 10:00:05

PA

Pa

KPA

KPA kPa

PA

LSB

MPA

MP a

62

(7) Wrong sequence number explanation

1000 Accept outflow from buffer.

1001 The instruction is being protected now.

1 004 Digital character string have non-permitted characters.

1005 Pressure unit is irregular.

1007 Parameter is wrong.

1016 The data can't meet the zeroing requirements.

1017 The parameter quantities is not enough.

1018 Unsupported instruction.

1019 The format of operation password is wrong.

1020 r/w Symbol is wrong.

1021 The file number is out of range.

1023 The shortening pressure unit is wrong.

1024 This pressure unit can't use.

1 025 The series address is out of range 1-112.

1 026 Baud rate is wrong.

1027 The time parameter of 24V open/close is wrong.

1 029 Parameter is too long.

1 030 Not contact with HART yet.

(8) HART function's return format

~Function 0: Linked the POLLING successfully

Address: F: MVAL: DEVICE: Manufacture: Equipment type: Equipment ID

Example: 001: F: MVAL: DEVICE: Endress & Hauser: Cerabar M: W ["Q

63

Address: F: MVAL: SENSOR_RANGE: Lower limit of sensor: Higher limit of sensor: Pressure unit

Switch to function 1,it is returned but not enter into the interface yet (example 1); oppositely, it returns after interface displayed (example 2)

Example 1: 001: F: MVAL: SENSOR_RANGE: 0.00000000: 0.00000000: NC

Example 2: 001: F: MVAL: SENSOR_RANGE: -40.0000000: 40.0000000: KPA

Address: F: MVAL: PV_RANGE: Lower limit of PV range: Higher limit of PV range: Pressure unit

Switch to function 2, it returned but not enter in the PV interface yet (example 1 ); oppositely, it returns after interface displayed (example 2)

Example------001: F: MVAL: PV_RANGE: 0.00000000: 0.00000000: NC

Example------001: F: MVAL: PV_RANGE: -0.01506382: -0.02472788: KPA

Address: F: MVAL: DAMPING: damp value: Unit (second)

Example------001: F: MVAL: DAMPING: 1.000: s

Address: F: MVAL: PV/MP _VALUE: pressure measured by transmitter:Unit:pressure measured by calibrator:Unit

Switch to function 4, it returned but not enter in the PV/MP interface (example 1 ); oppositely, it returns after interface displayed (example 2)

Example 1-----001: F: MVAL: PVIMP _VALUE: 0.00000: NC: 0.01414: KPA

Example 2-----001: F: MVAL: PV/MP _VALUE: 0.00973: KPA: 0.00984: KPA

64

~Function 5: Simultaneously display the pressure value measured by calibrator and the current value measured by transmitter

Address:F:MVAL:AO/MP _VALUE:Current value measured by transmitter:Unit:pressure value measured by calibrator:Unit

Switch to function 5, it returned but not enter in the AO/MP interface yet (example 1}; oppositely, it returns after interface displayed (example 2)

Example 1-------001: F: MVAL: AO/MP _VALUE: 0.00000: MA: 0.01088: KPA

Example 1-------001: F: MVAL: AO/MP_ VALUE: 4.00000: MA: 0.01012: KPA

Address: F: MVAL: AO/Ml_VALUE:Current value measured by transmitter:unit:current value measured by calibrator:unit

Example: 001: F: MVAL: AO/Ml_VALUE: 4.00000: MA 4.00265: MA

~Function 7: Appoint to the fixed current output from transmitter; calibrate the current output from transmitter

Address: F: MVAL: FIXAO/Ml_VALUE: Current output from transmitter: unit: current value measured by calibrator: unit

Switch to function 7, it returned but not enter in the FIXAOIMl_VALUE yet (example 1); oppositely, it returns after it is displayed (example 2)

Example1: 001: F: MVAL: FIXAO/Ml_VALUE: 0.00000: MA 4.00255: MA

Example2: 001: F: MVAL: FIXAO/Ml_VALUE: 4.00000: MA 4.00249: MA

Address: F: MVAL: MP_ VALUE: The pressure value measured by calibrator: unit

Example: 001: F: MVAL: MP _VALUE: 0.01025: KPA

Address: F: MVAL: MP/Ml_ VALUE: Pressure value measured by calibrator: current value measured by calibrator: unit

Example: 001: F: MVAL: MP/Ml_VALUE: 0.00346: KPA: 4.00242: MA

65