Omega Products DP31 Installation Manual

page

1 - GENERAL REMARKS

1

1.1 Identification 1

1.2 EU conformity 1

2 - PHYSICAL INSTALLATION

2

2.1 Space required – cutting the display panel holes 2

2.2 Panel mounting 2

3 - INSTALLATION AND CONNECTION 3

3.1 General advice 3

3.2 Installation recommendations

3.3 Wiring recommendations 3

3.4 Connections 4

4 - USER DIALOG

13

4.1 Instrument face layout 13

4.2 Dialog principle 13

4.3 Access to configuration menus 14

5 - CONFIGURATION

15

5.1 Configuring measurement inputs 15

5.1.1 Configuring the process input 16

5.1.2 Configuring the temperature input 21

5.1.3 Configuring the temperature and relative humidity input 24

5.1.4 Configuring the measuring bridge input 27

5.1.5 Configuring the resistance input 30

5.2 Configuring the external inputs contacts C1 and C2 32

5.3 Configuring the analog output, digital communications and alarms

34

5.3.1 Configuring the analog output 37

5.3.2 Configuring digital communications 38

5.3.3 Configuring alarm relays and thresholds 38

6 - OPERATION

43

6.1 Self test sequence 43

6.2 Adjusting the alarm thresholds 43

6.3 Displaying measurements and alarm thresholds 45

6.4 Analog re-transmission of measurements 46

6.5 Malfunction, error messages and system tests 47

6.6 Digital communications 49

7 - CALIBRATION 54

7.1 Conditions and equipment required for calibration 54

7.2 Calibration flow chart 55

7.3 Calibrating the measurement inputs 56

7.4 Calibrating analog outputs 58

7.5 Calibrating the measuring bridge power supply voltage 59

8 - TECHNICAL SPECIFICATIONS 60

8.1 Measurement inputs 60

8.2 Analog output 62

8.3 Alarm relays 62

8.4 Power supplies 62

8.5 Environmental and climatic conditions 63

8.6 Electromagnetic compatibility 63

1.1 IDENTIFICATION

Model number Description

Ordering Example: DP31-CR-24V: DP31 meter with 24Vac/Vdc power, 4 relay outputs, 2 contact inputs, RS -485 communications.

1 - GENERAL REMARKS

To order (specity model number)

DP31 1/8 DIN Digital panel indicator

Display and Power options

Ordering Suffix Description

-GN Green display

-24V 24 Vac/Vdc power

-48V 48 Vac/Vdc power

Ordering Suffix Description

-R 4 relays

-AR 4 relays, 2 contact inputs

-CR 4 relays, 2 contact inputs

Output options

analog output

RS -485 communications

1.2 EU CONFORMITY

The DP31 complies with European Directives concerning:

- Electromagnetic compatibility 89/336/CEE

- Low voltage supplies (LVD): 73/23/CEE amended by EEC Directive 93/68 – Applicable standard – EN 61010-1 dated April 1993

1.2.1 Operating conditions

- Operating temperature: -5 to +55°C

- Storage temperature: -20 to +70°C

- Ambient relative humidity: 10 to 90% non-condensing.

- Power supply: 85 to 264 Vac - 50/60 Hz - 10 VA 24/48 Vac ± 10% - 50/60 Hz - 10VA 24/48 Vdc ± 10% - 10 VA

- Installation category (overload): II

- Pollution level: II as defined in IEC 664

- Display panel sealing: IP65.

1

1.2.2. Meaning of symbols used in documentation and on labels on connectors

Operating ground terminal

Safety ground terminal

Alternating current

~

Caution: Refer to accompanying documentation

2 - PHYSICAL INSTALLATION

2.1 SPACE REQUIRED – CUTTING THE DISPLAY PANEL HOLES

- Format: 1.89” x 3.78” (48 x 96 mm) in accordance with DIN 43760

- Overall depth behind flange: 4.53” (115 mm).

- Weight: 11.3 oz (320 g).

Y1

Y2Y1

Y2

Y3 Y4

LN

1.89" (48 mm)

MAXI : .47" (12 mm)

Panel

3.78" (96 mm)

3.62” (+.03”)

Display panel holes

( - 0) [92 (+ 0.8) ( - 0)]

2.36” [60]

minimum.

4.72” [120] minimum

FIGURE 2 FIGURE 3

2.2 FITTING THE EQUIPMENT

FIGURE 1 (lengths in inches [mm]

1.77” (+.03”) ( - 0) [45 (+ 0.8)

Side view

4.53" (115 mm) .39" (10 mm)

Mounting brackets

Edge view

Tapped hole

The DP31 is fixed by means of two mounting brackets (figures 1 & 3). To fix the unit:

- Insert a screw into each bracket.

- Slide the apparatus into the hole in the panel.

- Insert a bracket at each fixing point located on the sides of the casing.

- Position each bracket in the rear of its fixing on the terminal strip side.

- Tighten the screws until the apparatus is secure. Do not over-tighten.

2

3 - INSTALLATION AND CONNECTION

3.1 GENERAL ADVICE

† The precautions described below must be taken when connecting the meter, in order for the

equipment to comply with the European directives concerning:

- Electromagnetic compatibility: 89/336 CEE

- Low voltage supply safety rules: LVD 73/23 CEE amended by EEC Directive 93/68. If the DP31 is used other than as specified, then the protection provided by the equipment may be

compromised.

3.2 INSTALLATION RECOMMENDATIONS

Avoid placing the meter near:

- High power or relay cut-off or transforming devices.

- Thyristor power units, motors, etc. As a rule, the instrument panel should be located in a separate part of the cabinet from power and relay controls. Avoid placing the meter above equipment giving off heat.

If the temperature inside the cabinet exceeds 55°C, install a filtered air ventilation system.

3.3 WIRING RECOMMENDATIONS

3.3.1 Power supply connection

The DP31 is designed to be permanently connected to the AC power supply. Consequently, the user should provide a switch or similar means of shutting off the power which should be located in the cabinet near the unit.

It is also advisable to fit an identifiable safety fuse near the meter: rating 250 mA 230 Vac. Where several units are to be fitted in the same cabinet, power connections should be as direct as possible: use a

star pattern for wiring in order to avoid daisy-chaining from one unit to another. Do not power the unit with the same line used for powering contactors or relay coils. If the power supply network suffers from disturbances (in particular due to high power switching via contactors or

thyristor regulators), the instrument section should be run on an isolating transformer with a grounded screen.

3.3.2 Grounding

The grounding terminals on all units must be linked together in a star at a single point (the facility's metal earth ground) by means of a conductor of equal section to that of the power cables. In order to avoid interference due to the common mode, it is vital to ensure that the grounds of all equipment linked to the unit's inputs and outputs are all at equal potential.

3

3.3.3 Connecting the inputs and outputs

The wires connected to the measurement inputs and outputs (analog, digital communication) must be physically separated from power cables and cables used for relays or contactor coils, along their entire length.

Use wiring gutters or separate or divided wiring ducts. Any one cable must only carry signals of exactly the same type. Use sheathed cables with stranded wire for connections.

† The protective sheathing MUST be grounded via a single point, preferably on the earth ground terminal side of the indicator.

3.4 CONNECTION

The DP31 has two detachable terminal strips (1 & 2) connected to the base card. Two additional terminal strips (3 & 4) are present on the -R, -AR, and -CR models. The screw terminals have a clamping capacity of 2.5 mm².

3.4.1 Selecting transmitter and measuring bridge power supplies

On terminal 7 there is a power supply available for:

- Energizing transmitters. The supply is 24 V at a maximum of 30 mA ; or

- A measuring bridge which may be energized between 4.5 and 10.2 V at a maximum of 30 mA. If the measurement input requires the use of one of these power supplies, it must be selected prior to connection.

To perform this operation:

- Remove terminal strip 2

- Set the diverter switch on the base card as shown in figure 4.

Rear view

Switch Transmitter power supply

Terminal strip 3

Terminal strip 1

Measuring bridge power supply

Terminal strip 4

Terminal strip 2

FIGURE 4

3.4.2 Connecting terminal strips 1 & 2 on the base card

Terminal strip 1 (terminals 1 & 2): meter power supply. Terminal strip 2 (terminals 3 – 16): alarm relays R1; power supply for transmitter/measuring bridge,

measurement input (connections vary according to input type).

4

3.4.2.1 Single temperature measurement (input CH1)

§ Thermocouple input

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

85 to 264 Vac 24/48 Vac/dc

NC C NO

Relay R1 transmitter/measuring

bridge power supply

§ RTD – Pt 100 ΩΩ, Ni 100 ΩΩ - 3 wire assembly

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/ measuring bridge power supply

§ RTD – Pt 100 ΩΩ, Ni 100 ΩΩ - 4 wire assembly

CH1

+ -

TC

CH1 CH2

Probe

CH1 CH2

CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

3.4.2.2 Differential temperature measurement (CH1 – CH2)

† The sensors and the configuration of the two inputs must be identical

§ Thermocouple inputs

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

CH1 CH2

+ -

TC1

Probe

+

TC2

-

§ RTD – Pt 100 ΩΩ, Ni 100 ΩΩ - 4 wire assembly only

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

C

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

Relay R1

transmitter/ measuring bridge power supply

5

CH1 CH2

Probe 1

Probe 2

3.4.2.3 Temperature (input CH1) and relative humidity (input CH2)

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 4/20 mA current signal supplied by a two-wire transmitter powered by the DP31

CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Shunt S

S

2.5 Ω

0.1%

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

Pt 100 Ω

+

24 V

RH Transmitter

4/20 mA

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 0/1 V voltage signal

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 0/10 V voltage signal

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

-

CH1 CH2

+ -

RH

Pt 100 Ω

CH1 CH2

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

+

Pt 100 Ω

RH 0/10 V

-

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 0-20 mA current signal provided by 3 wire transmitter powered by the DP31

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

S

P N

24/48 Vac/dc

C

NC NO

Relay R1 85 to 264 Vac

+ 24 V

-

RH Transmitter

0/20 mA

6

Pt 100 Ω

Output

Shunts

2.5 Ω - 0.1%

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 0-1 V voltage signal provided by 3 wire transmitter powered by the DP31

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

C

P N

NC NO

24/48 Vac/dc

Relay R1 85 to 264 Vac

-

RH Transmitter

0/1 V

Pt 100 Ω

Output

+ 24 V

- Temperature input: RTD probe – Pt 100 Ω - 3 wire assembly

- Relative humidity input: 0-10 V voltage signal provided by 3 wire transmitter powered by the

DP31

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

24/48 Vac/dc

C

Relay R1 85 to 264 Vac

Pt 100 Ω

-

+ 24 V

RH

Transmitter

0/10 V

Output

- Temperature input: 0/20 or 4/20 mA current signal

- Relative humidity input: 0/20 or 4/20 mA current signal

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

Shunts S1 S2

2.5 Ω

0.1%

CH1 CH2

S1

+

-

+ -

T° mA

S2

RH mA

- Temperature input: 4/20 mA current signal provided by 2 wire transmitter powered by the DP31.

- Relative humidity input: 0/20 or 4/20 mA current signal provided by independently powered 4 wire transmitter. CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Shunts S1 S2

S2

+ -

RH transmitter

2.5 Ω

0.1%

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

+

24 V

T° transmitter

4/20 mA

S1

-

External power supply

7

- Temperature input: 4/20 mA current signal provided by 2 wire transmitter powered by the DP31.

- Relative humidity input: 0/1 V voltage signal.

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CH1 CH2

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

+

24 V

Shunt S

2.5 Ω − 0.1%

T° transmitter

4/20 mA

S

+

-

RH

0/1V

- Temperature input: 4/20 mA current signal provided by 2 wire transmitter powered by the DP31.

- Relative humidity input: 0/10 V voltage signal.

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

+

24 V

T° transmitter

+

Relative Humidity 0-10 V

CH1 CH2

S

-

- Temperature input: 0/1 V voltage signal.

- Relative humidity input: 0/1 V voltage signal. CH1 CH2

Shunt S

2.5 Ω − 0.1%

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

+

T°

0/1V

-

+ -

RH

0/1V

- Temperature input: 0/1 V voltage signal

- Relative humidity input: 4/20 mA current signal provided by 2 wire transmitter powered by the DP31.

CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Shunt S

S -

2.5 Ω

0.1%

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

+

24 V

RH transmitter

4/20 mA

+

T°

0/1V

-

- Temperature input: 0/1 V voltage signal.

- Relative humidity input: 0/1 V voltage signal.

CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

transmitter/measuring bridge power supply

-

+

T° 0/1V

+ -

8

RH 0/10 V

3.4.2.4 Single voltage or current input signal measurements (input CH1)

- Voltage signal input: 50 mV – 0/100 mV – 0/1 V

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

- Voltage signal input: 0/10 V

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

NC NO

P N

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

- Current signal input 0/20 mA – 4/20 mA ±± 20 mA

+

0/10 V

CH1 CH2

-

mV - V

CH1 CH2

- +

CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

+

S

mA

Shunt S 2.5 Ω

0.1%

-

P N

85 to 264 Vac 24/48 Vac/dc

NC

C

Relay R1

NO

transmitter/measuring bridge power supply

- Current signal input: 4/20 mA provided by 2 wire transmitter powered by the DP31 CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

NO

+ -

24V

Transmitter

4/20 mA

S

Shunt S 2.5 Ω

0.1%

- Current signal input: 4/20 mA provided by 4 wire transmitter powered by the DP31 CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

- +

Transmitter

+24 V

4/20 mA

9

S

Shunt S

Output

2.5 Ω 0.1%

-

3.4.2.5 Differential measurement (channel 1 – channel 2) of voltage and current input signals

† Signal types, ratings and the configuration of the two inputs must be identical

- Current signal inputs 50 mV – 0/100 mV – 0/1 V

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

NC NO

P N

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

- Current signal inputs: 0/20 mA – 4/20 mA - ±± 20 mA

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

C

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

Relay R1

transmitter/measuring bridge power supply

CH1 CH2

+ -

U1

CH1 CH2

S1

+

-

I1

mA

+

S2

+ -

I2

mA

-

U2

Shunts S1,S2

2.5 Ω − 0.1%

- Current signal inputs: : 0/20 mA – 4/20 mA provided by transmitters, one of which is 2-wire

powered by the DP31

CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

+

24 V

Transmitter

4/20 mA

- Voltage signal input: 0/10 V

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

3.4.2.6 Measuring bridge signal measurements ±± 50 mV

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

+

S1

-

U1

10 K

Factor 10

divider

S2

+ -

Transmitter

External power supply

CH1 CH2

-

90 K

+

U2

CH1 CH2

Shunts S1 S2

2.5 Ω

0.1%

-

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

C

Relay R1

Power supply + 4.5 to 10.2 V

Refer to section 3.4.1

10

+

-

3.4.2.7 Resistance signal mea surements

- Resistance 0/200 ΩΩ - 3-wire assembly

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

C

P N

85 to 264 Vac 24/48 Vac/dc

NC NO

Relay R1

transmitter/measuring bridge power supply

CH1 CH2

R 200 Ω

- Resistance 0/200 ΩΩ - 4-wire assembly

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

CH1 CH2

- Resistance 0/200 ΩΩ -Differential measurement (Ch1-Ch2) 4-wire assembly only CH1 CH2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

R 200Ω

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

R 200 Ω

R 200Ω

- Resistance 0/2000 ΩΩ - 4-wire assembly only

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

NC NO

85 to 264 Vac 24/48 Vac/dc

C

Relay R1

transmitter/measuring bridge power supply

CH1 CH2

R 2000Ω

11

3.4.3 Connecting the additional terminal strips on the -R, -AR, -CR models

Connections vary depending on the model.

Terminal strip 3 (terminals 17 to 25): analog output, contact inputs C1 & C2, digital link RS -485. Terminal strip 4 (terminals 26 to 34): alarm relays R2-R3-R4.

- Model DP31-R: 4 alarm relays

26 27 28 29 30 31 32 33 34

NO NC NO NC NO NC

C C C

Relay R4 Relay R3 Relay R2

- Model DP31-AR: 2 contact inputs + 4 alarm relays + analog output

17

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

C2

C C C

Relay R4 Relay R3 Relay R2

mA

+ -

V

+

Analog output

-

NO NC NO NC NO NC

C1

- Model DP31-CR: 2 contact inputs + 4 alarm relays + RS -485 digital link

17

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

C2

C1

B A RXD

TXD

RS-485

NO NC NO NC NO NC

RXD

TXD

12

C C C

Relay R4 Relay R3 Relay R2

4 - USER DIALOGUE

4.1 INSTRUMENT FACE LAYOUT

u

Y1 Y3 Y4

Y3 Y4

Y2Y1

Y2

LN

w x

v

u 5 digit display comprising seven 14 mm-high segments, for displaying:

Figure 5

y

- Single (channel 1), differential (channel 1 – channel 2) and alternating relative humidity/temperature measurements.

- Alarm thresholds, menus and configuration parameters.

- Display limits: -19999 to 99999 units.

v Two digit display comprising seven 9 mm-high segments, for displaying:

- Measurement units.

- Menu and configuration parameters.

w Four red LED's (Y1, Y2, Y3 & Y4) indicating that the respective thresholds have been exceeded (lit

during alarm status and latching).

x One red LED LN indicating the use of the digital link: it flashes during reception of messages.

y Keypad with 3-dual function keys:

E : - select parameters to be displayed

- confirm configuration or parameter adjustment. s - Scroll through menu or parameters

- Increase number value t - Scroll back through menu or parameters

- Decrease number value To increase or decrease a number, keys p and q are dual action:

- One press to change by one unit.

- Sustained pressure to change rapidly.

4.2 DIALOG PRINCIPLE

User dialog is structured in menus with different levels of accessibility:

- Normal use, accessed directly, allows measurements, parameters and alarm thresholds to be viewed but not changed. Latched alarms may also be reset.

- Set, which is accessed by entering code (5), allows alarm thresholds to be modified.

- Configure, which is accessed by entering code (15), allows the DP31 unit to be configured for a specific application.

- Automatic calibration of the input/outputs is accessed by entering code (-13) and closing the

calibration pin (see section 7.1).

- Test, which is accessed by entering code (55), allows the user to test the display and relays.

13

4.3 ACCESS TO CONFIGURATION MENUS

MEASUREMENT

E

+ E

Software

E

version

tESt inPut outPt Gauge SEt_P

E E E E E

CodE CodE CodE CodE CodE

E

55

E

Test Display Relays

E

15

E

Modify INPUT Configuration

E

15

E

Modify OUTPUT Configuration

E

15

E

Adjust measuring

E

Pin locked

5

E E

Modify alarm

No

CALi ?

CodE

E

View INPUT configuration

View OUTPUT configuration

View measuring bridge voltage

View alarm thresholds + resetting

-13

Calibration

† During the view phases, the measurement is displayed automatically 9 seconds after the

last key is pressed.

¡ SOFTWARE VERSION

With the measurement on-screen, depress and hold p, then press E;

the version number will be displayed e.g.:

PA02

UE

No

14

5 - CONFIGURATION

The DP31 unit may be configured to suit the characteristics and requirements of a given application by the choice and definition of the input and output parameters. The configuration process is structured around menus (input-output) consisting of several successive stages described in the various flowcharts.

† - Modifying the configuration is only possible by entering code 15. Otherwise, it is only

possible to view the existing configuration.

- For safety reasons, the configuration modification procedure may not be exited until all phases of the menu to be modified have been run through and confirmed.

- Certain parameters and flowchart steps will not be displayed during the procedure; this is due to either:

. The absence of certain functions (input contacts, analog output, etc.), depending on the

DP31 model;

. A previously confirmed choice in the menu concerning certain parameters and

functions.

5.1 CONFIGURING MEASUREMENT INPUTS

The DP31 unit has two means of reading data which allows the following measurements to be made:

- A single process variable, which reading must be made via channel 1: SinGL input mode.

- Differential measurement (channel 1 – channel 2) of a process variable: diFF input mode. I n this case, both channels must be fitted with identical sensors or types of input signal. The chosen configuration is automatically assigned to both channels.

- Two distinct process variables: temperature (channel 1), and relative humidity (channel 2).

† Follow one of the five flowcharts describing the configuration procedure, depending on the

sensor type or input signal, and the process variable to be measured. To access the configuration procedure, select the input menu and enter code 15.

15

MEASUREMENT

E

5.1.1 PROCESS INPUT FLOWCHART

tESt

View

configuration

Measurement

signal

Current

mA

Voltage

mV

Voltage

Volt

inPut outPt GAuGE SEt_P

E

CodE

E

15

No

SinGL

in

othEr

in

-20.20

in

0_20

in

4_20

in

-50.50

in

0_50

in

10_50

in

0_0.1V

in

0_1V

in

0_10V

E

Modification

in in in

in in

E

diFF rH_t° GAuGE

t° rESiS

E

USEr

in

E

Lin

in

E

root

in

E

Cr_AL

in

E

L

in

E

Pt 100

in

E

Ni 100

in

Input type

Specific calibration or linearization

Linear

Square root

Thermocouples

Resistance probes

Cont. (A)

in

16

Cont. (A)

PROCESS INPUT (Cont.)

User linearization

0 0.0000

dP dP

Select

unit

Pu

E

No

USEr

mode

Singl

input

tAbLE

in

E

in

Decimal

tArE

E

Sensor break protection

External signal calibration

Measurement

4/20 mA

10/50 mV?

XXX

tb

E

S_LO

in

E

XXX

oF

E

XX

Fi

E

No

Line break threshold

S_Hi

in

E

Measurement offset

Measurement filter

Low end

of scale

High end

of scale

Input mA, mV, V

XXXXX

Lo

E

XXXXX

Hi

E

Points

displayed

Input mA, mV, V

Points

displayed

XX

nS

XXXXX

So

XXXXX

n0.

XXXXX

S1

XXXXX

24.

E

Number of segments

XX

nS

XXXXX

n0.

XXXXX

n1.

XXXXX

n2.

XXXXX

24.

E

Points

displayed

Points

displayed

Points

displayed

Points

displayed

SinGL

Input

XXX

dt

Contacts C1-

C2 present

Configure

contacts C1/C2

Totalizing

E

time

No

Back to

measurement

17

CONFIGURING THE PROCESS INPUT: voltage and current signals

§§ STEP 1 : Select type of measurement: parameter [in] ? SinGL : single (on channel 1)

? diFF : differential (channel 1 – channel 2)

§§ STEP 2 : Select input type [othEr]

§§ STEP 3 : Select measurement signal: parameter [in]

. Current mA : ± 20, 0/20, 4/20 . Voltage mV : ± 50, 0/50, 10/50 . Voltage V : 0/0,1, 0/1, 0/10

§§ STEP 4 : Select input or sensor type: parameter [in]

- USEr : specific linearization of the input signal in up to 25 stages, or calibration

function for a real input signal – max. 25 points.

- Lin : Linear input signal

- root : Calculation of the square root of the input signal.

- Select temperature sensor: thermocouple or resistance probe linearized by the DP31 (see phase 3 of section 5.1.2 page 24).

§§ STEP 5 : select decimal point position : parameter [dP]

- USEr, Lin or root input: dP = 0 - 0.0 - 0.00 - 0.000 - 0.0000

- Thermocouple or resistance probe temperature sensor: dP = 0 – 0.0

§§ STEP 6 : Select unit for the process variable to be measured: parameter [Pu]

Pu

°C

_.h

_.n

E

°F rH

Pu Pu

E E

nU U

Pu Pu

E E

_.S Li

Pu Pu

E E

18

Pu

PA

nA

%

E

Pu

PH

A

bA

E

Pu

E

§§ STEP 7 : Setting the scale limits for the input signal

- Parameter [Lo] : Low scale.

- Parameter [Hi] : High scale. Input adjustment range:

- Lin : -10000 to +20000 points

- root : 0 to 20000 points.

- Temperature sensors: within the specific limits of each type of sensor (see section 8.1.3).

§§ STEP 8 : If the input type [USEr] has been confirmed in step 4 there is a selection to be made between tAbLE and tArE modes: parameter [in]

- [tAbLE] mode : with single and differential measurements, it is possible

to linearize the input signal in 25 stages.

† Linearization is only possible with increasing and decreasing monotonic functions. This

consists of assigning a value for each breakpoint:

- Input signal value in mA, mV or V within the limits set in step 3.

- Number of points represented on-screen (from –10000 to +20000) corresponding to the resolution set in step 5.

Example: six segment table with seven breakpoints

Input mA, mV, V

S6 S5 S4

S3 S2

S1 S0

n0

k

j

n1 n2 n3

m

l

n4 n5 n6

o

n

Display points

Figure 6

19

- Select the number of segments in table: parameter nS = 0 to 24.

- Assign a value to each breakpoint corresponding to the segments selected. So : input value in mA, mV or V for point O. no. : number of display points corresponding to the input value So

Identical procedure for points S1, n1 to Sx, nx. As of the tenth breakpoint, the symbols displayed become:

- 10, 11, 12 ... for the input values

- 10., 11., 12. ... for the corresponding display points.

- [tArE] mode: the changes in the input signal received on channel 1 may be

linearized in 25 stages.

The measurement received via channel 1 is recorded as a dip value by the operator when it

successively sets and confirms the co rresponding numbers of display points: n0, n1, n2, …

† This mode cannot be used for differential measurements. Display values are only taken

into account when they are altered by pressing keys q and p. This allows the indicator to be reset to a calibration setting, with no need to change the values already memorized.

§§ STEP 9 : Setting the shifted measurement signal threshold for line break detection:

parameter [tb]

- 4/20 mA signal : 0 to 4 mA

- 10/50 mV signal : 0 to 10 mV

§§ STEP 10 : Selecting the position of the measurement protection device, for the

detection of sensor failure and breaks in the measuring wire: parameter [in]

? S.Lo : low protection ð measurement at minimum on scale ? S.Hi : high protection ð measurement at maximum on scale.

§§ STEP 11 : Setting the measurement offset

- parameter oF : ± 500 display points With differential measurements, the offset is applied to the difference displayed

(channel 1 – channel 2)

§§ STEP 12 : Setting the measurement software filter

- parameter Fi : 0 to 20

§§ STEP 13 : Setting the totalizing time

- Only used with single measurements (channel 1)

- parameter dt : 0 to 99999 seconds

The time unit is linked to the choice of physical unit made in step 6. The unit is

generally the second, except where set to:

- .n ð minute

- .h ð hour

§§ STEP 14 : Assignment of input contacts C1 - C2 where present

ð see section 5.2

20

MEASUREMENT

E

5.1.2. TEMPERATURE INPUT FLOWCHART

tESt

view configuration

Sensor

type

Thermocouple

Probes

inPut outPt GAuGE SEt_P

E

CodE

E

15

No

USEr

in

Cr_AL

in

L

in

Pt 100

in

ni 100

in

E

SinGL

in

E

t°

in

Decimal

Unit

Modification

E

0

dP

E

°C °F

Pu Pu

No

USEr

mode

XX

nS

E

XXXX

so

E

XXXX

no.

diFF rH_t° GAuGE

in in in

E

othEr rESiS

in

0.0

dP

E

Linearization by user

Number of segments

mV Input

T.displayed

E

Internal cold junction

No

Sensor break protection

Measurement offset

Measurement filter

int

CJ

E

USEr mode

XX.X

Co

E

S_Lo

in

E

XXX

oF

E

XX

Fi

E

CJ

XX.X

CJ

out

S_Hi

in

E

External cold junction

E

XXXX

S1 E

XXXX

24.

E

mV Input

T. displayed

21

Contacts

C1-C2

present?

Configure

No

Back to

measure-

ments

¡ CONFIGURING TEMPERATURE INPUTS: MEASUREMENTS USING THERMOCOUPLES

AND RESISTANCE PROBES

§ STEP 1 : Select measurement type ? SinGL : single (on channel 1) ? diFF : differential (channel 1 - channel 2)

§ STEP 2 : Select input type [t°]

§ STEP 3 : Select either thermocouple sensor or resistance probe

Cr_AL

in

thermocouple K thermocouple J thermocouple T thermocouple S

ni_Mo

in

Thermocouple

Ni-Ni Mo18

Ur E0.1

in

W/Re 5/26

Resolution 0.1°

USEr

Specific

linearization

sensor

FE_CO

in

E

in

Thermocouple E Thermocouple B Thermocouple

Ur E_1

in

Thermocouple

W/Re 5/26

Resolution 1°

ni 100

in

Ni probe 100 Ω Pt probe 100 Ω JIS

in

Thermocouple Thermocouple L Thermocouple

in

CU_CO

in

b

in

n

P 100J

Pt_rh

in

r

in

L

in

P100d

in

Pt probe 100 Ω DIN

§ STEP 4 : select decimal point position

- parameter [dP] : 0 or 0.0

§ STEP 5 : select unit

- parameter [Pu] : °C or °F

§ STEP 6 : Specific linearization in up to 25 stages for any thermocouple not already

supported in the internal tables ([USEr] selection made in step 3).

22

† Linearization is only possible with increasing or decreasing monotonic functions. This

consists of assigning values for each breakpoint: Sx : input voltage in mV (± 75.00 mV max.) nx. : temperature displayed, corresponding to the resolution and unit selected

(-10,000 to +20,000 points). See tAbLE mode in step 8 of section 5.1.1

§ STEP 7 : Select cold junction compensation mode

- parameter [CJ]

? int : automatic internal compensation ? out : external compensation

§ STEP 8 : Adjust external cold junction value

- parameter [CJ] : 0 to 60°C or 32 to 140°F

§ STEP 9 : Adjust cold junction coefficient in USEr mode

- parameter [Co] : ± 1000 µV/°C

§ STEP 10 : Select the position of the measurement protection device used for detecting sensor failure and breaks in the measuring wire:

- parameter [in]

? S-Lo : low level ð minimum measurement on scale

? S-Hi : high level ð maximum measurement on scale

§ STEP 11 : Setting the measurement offset

- parameter [oF] : ± 500 display points

With differential measurements, the shift is applied to the difference displayed (channel 1 –

channel 2)

§ STEP 12 : Adjust the measurement software filter

- parameter [Fi] : 0 to 20

§ STEP 13 : Assign input contacts C1 - C2 where present

See section 5.2

23

MEASUREMENT

E

5.1.3 TEMPERATURE AND RELATIVE HUMIDITY INPUT FLOWCHART

tESt

View configuration

HUMIDITY

Measure-

ment

signal

Linear input

TEMPERATURE

Measure-

ment signal

Relative humidity or temperature display

rH

inPut outPt GAuGE SEt_P

E

CodE

E

15

No

E

Modification

rH.t° GAuGE SinGL diFF

in

0_20

rH

t°

E

Lin

E

Pt 100

TouCH

di

in in in

4_20 0_1V 0_10V

rH rH rH

E E E

USEr

rH

E

Linearization by user

Number of segments

XX

nS

E

XXXX

so

XXXX

no.

XXXX

S1

XXXX

24.

E

Input mA/volt

rH displayed

Input mA/Volt

rH displayed

0_20 4_20 0_1V

t° t° t°

E E E E

linear or other

Lin noLi

t°

E

t°

E

transmitter

Alternating

toGLE

di E E

t°/rH display

Decimal

T°

Unit

T°

Memorize min/max. measurement

t° rH

NE

E

0 0.0

dP

E

°C °F

Pu

E

XXXX

Lo

E

XXXX

Hi

E

Scale shift

No

XXX

tb

E

S_Lo S_Hi

in

E

XXX

oF

T° measure-

E

ment offset T°

XX

Fi

Contacts

C1-C2

present?

Configure

contacts C1/C2

T° measurement filter

E

NE

E

dP

E

Pu

Low end of temperature scale

High end of temperature scale

Line break threshold 4/20 mA rH/T°

in

E

Sensor failure protection rH/T°

No

Back to

measurements

24

¡ CONFIGURING TEMPERATURE AND RELATIVE HUMIDITY INPUTS

§ STEP 1 : Select input type [rH - t°]

§ STEP 2 : Select input signal (channel 2) for relative humidity measurements

- parameter [rH]

? current mA : 0/20, 4/20 ? voltage V : 0/1, 0/10

§ STEP 3 : Select relative humidity input type

- parameter [rH]

? Lin : Input signal with linear variations

† The scale limits and measurement resolution are not adjustable. They are automatically

set at 0.0 and 100.0% rH.

? USEr: specific linearization of the input signal in up to 25 stages - see tAbLE

in step 8 of section 5.1.1

Adjustment of rH values displayed: 0.0 to 100.0%.

§ STEP 4 : Select input signal (channel 1) for the temperature measurement

- parameter [t°]

? Pt 100 : direct input for Pt 100 Ω DIN probe ? Current mA : 0/20, 4/20

? Voltage V : 0/1

† The current and voltage signals, non-linearized, must be provided by temperature

transmitters with a sensor consisting of a Pt 100 Ω resistance probe.

§ STEP 5 : Signal type sent by the temperature transmitter

- parameter [t°]

? Lin : signal linearized by the transmitter ? noLin : non-linearized signal. In such cases, the DP31 unit will use its

internal Pt 100 Ω DIN resistance probe linearization table.

§ STEP 6 : Select rH and t° measurement display mode

- parameter [di]

? TouCH : static display. Switching between variables is performed by

pressing the p and q keys.

? toGLE : display toggles between the two variables every three seconds.

25

§ STEP 7 : Set memorized variable for minimum and maximum measurements

- parameter [nE]

? t° : temperature ? rH : relative humidity

§ STEP 8 : Select decimal point position

- parameter [dP] : 0 or 0.0

§ STEP 9 : Select temperature unit

- parameter [Pu] : °C or °F

§ STEP 10 : Set temperature input scale limits

Max. temperature range: -200.0 to +800.0°C

- parameter [Lo] : Low scale

- parameter [Hi] : High scale

§ STEP 11 : Setting the line break detection threshold for 4/20 mA measurement

signals

- parameter [tb] ; 0 to 4 mA.

The threshold set by this means is applied to both measurement inputs (rH and t

°), where they receive 4/20 mA signals.

§ STEP 12 : Selecting the position of the measurement protection device, for the

detection of sensor failure (Pt 100 ΩΩ probe) and breaks in the 4/20 mA wire

- parameter [in]

? S-Lo : low level ð measurement at minimum on scale ? S-Hi : high level ð measurement at maximum on scale

The selection made is applied to both quantities - rH and t°.

§ STEP 13 : Setting the measurement offset

- parameter [oF] : ± 500 display points.

- The relative humidity measurement may not be adjusted.

§ STEP 14 : Setting the measurement software filter

- parameter [Fi] : 0 to 20

This filter does not operate on the RH input.

§ STEP 15 : Assignment of input contacts C1 - C2 where present

See Section 5.2

26

MEASUREMENT

E

5.1.4 MEASURING BRIDGE INPUT FLOWCHART

tESt inPut outPt GAuGE SEt_P

E

CodE

E

15

Low end of scale

view

config.

XXXXX

Lo

E

No

E Modification

GAuGE

in in in in

E

SinGL diFF rH.t°

Lin USEr

in

E

0

dP

E E

Choice of

in

0.0000

dP

E

Decimal

S_LO

in

XXX

oF

XX

Pu

Fi

USEr

MODE

Linearization by user

Contacts

present?

XX

nS

E

XXXXX

Number of segments

Input mV

Configure

E

C1-C2

S_HI

in

E

Measurement offset

Measurement filter

No

Back to

Sensor break

High end of scale

XXXXX

Hi

E

so

XXXXX

no.

E

XXXXX

s1

XXXXX

24.

E

Points displayed

Input mV

E

Points displayed

E

27

¡ CONFIGURING THE MEASURING BRIDGE

§ STEP 1 : Select input type [GAuGE]

The amplitude of the measurement input signal is automatically set to ± 50 mV.

§ STEP 2 : Select input type

- parameter [in]

? Lin : Input signal with linear variation

? USEr : specific linearization of the input signal in up to 25 stages.

§ STEP 3 : Select decimal point position

- parameter [dP]

dP = 0 - 0.0 - 0.00 - 0.000 - 0.0000

§ STEP 4 : Select unit for the process variable measured

- parameter [Pu] ð see phase 6 of section 5.1.1

§ STEP 5 : Set scale limits (with Lin input)

Scale range: -10,000 to + 20,000 points.

- parameter [Lo] : Low scale

- parameter [Hi] : High scale

§ STEP 6 : Where a USEr type input has been selected in step 2, enter the coordinates of

each breakpoint on the specific linearization table

Sx : input voltage in mV (± 50 mV max.) nx. : display points corresponding to resolution and unit selected (-10,000 to

+20,000 points).

See tAbLE mode in step 8 of section 5.1.1

§ STEP 7 : Select the position of the measurement protection device for detecting

sensor failures and breaks in the measuring wire

- parameter [in]

? S-Lo : low level ð minimum measurement on scale ? S-Hi : high level ð maximum measurement on scale

28

§ STEP 8 : Set measurement offset

- parameter [oF] : ± 500 display points

§ STEP 9 : Set the measurement software filter

- parameter [Fi] : 0 to 20

§ STEP 10 : Assign input contacts C1 - C2 where present

See Section 5.2

§ STEP 11 : Set measuring bridge power supply voltage

This adjustment may be made directly from the GAuGE menu by entering code 15. The

measuring bridge's power supply voltage may be adjusted within the range 4.5 to 10.2 V, in 1 mV increments, by pressing the p and q keys. The voltage must be set such that the input

signal varies with a maximum amplitude of ± 50 mV.

† After configuring the measuring bridge input, check that the power supply selector is set

to the appropriate position. - see Section 3.4.1

MEASUREMENT

E

tESt inPut outPt GAuGE SEt_P

SETTING THE MEASURING BRIDGE POWER SUPPLY VOLTAGE

E

CodE

15

No

E

Adjust voltage

View voltage XX.XXX

SG

E E

between 4.5 and

10.2 V

29

Back to MEASUREMENT

MEASUREMENT

E

5.1.5 RESISTANCE INPUT FLOWCHART

tESt inPut outPt GAuGE SEt_P

E

CodE

E

View configuration

No

15

Modification

E

SinGL

in

E

diFF rH_t° GAuGE

in in in

E

rESiS othEr t°

in in in

200 ΩΩ sensor

2000 ΩΩ sensor

200.00

rt

E

2000.0

rt

E

Low end of scale

High end of scale

Sensor break protection

Measurement offset

Measurement filter

Select

Pu

XXXX

Lo

XXXX

Hi

S_LO

in

XXX

oF

XX

Fi

E

S_Hi

in

E

Contacts

C1-C2

present?

Yes

Configure

No

Back to

30

¡ CONFIGURING RESISTANCE INPUTS

§ STEP 1 : Select measurement type

- parameter [in]

? SinGL : single on channel 1

? diFF : differential channel 1 - channel 2. This only operates with a 4 wire

assembly and a 200.00 Ω sensor.

§ STEP 2 : Select input type [rESiS]

§ STEP 3 : Select sensor type

- parameter [rt]

? 200.00 : linear 200.00 Ω sensor with a 3 or 4 wire assembly ? 2000.0 : linear 2000.00 Ω sensor with a 4 wire assembly only

§ STEP 4 : Select unit for physical quantity measured

- parameter [Pu] - see step 6 of section 5.1.1

§ STEP 5 : Set scale limits

Adjustment range: 0 to 20,000 points

- parameter [Lo] : Low scale

- parameter [Hi] : High scale

§ STEP 6 : Select position of the protection device for sensor failures and breaks in

the measurement wire

- parameter [in]

? S-Lo : low level ð minimum measurement on scale ? S-Hi : high level ð maximum measurement on scale

§ STEP 7 : Setting the measurement offset

- parameter [oF] : ± 500 display points

§ STEP 8 : Setting the measurement input software filter

- parameter [Fi] : 0 to 20

§ STEP 9 : Assignment of input contacts C1 - C2 where present

See section 5.2

31

5.2 FLOWCHART FOR THE EXTERNAL INPUT CONTACTS C1 AND C2

MEASUREMENT INPUT

CONFIGURATION

Contact C1

E

Not used

Display hold

Hold analog output

Disable keypad

Reset alarms

Reset min. measuremen

Reset max. measuremen

Reset total

not

c1

b_diS

c1

b_Ao

c1

b_cEy

c1

r_ALr

c1

r_dL

c1

r_dH

c1

E

not

c2

b_diS

c2

b_Ao

c2

b_cEy

c2

r_ALr

c2

r_dL

c2

Contact C2

E

Not used

E

Display hold

E

Hold analog output

E

Disable keypad

E

Reset alarms

E

Reset min. measurement

r_tot

c1

r_dH

c2

E

Reset max. measurement

32

E

r_tot

c2

Back to MEASUREMENT

Reset total

¡ CONFIGURING INPUT CONTACTS C1 - C2

The DP31 and DP31-R are not fitted with input contacts; this configuration menu does not therefore appear on this model.

- The configured function will be activated when the corresponding contact closes.

§ STEP 1 : Assign contact C1

- parameter [C1]

§ STEP 2 : Assign contact C2

- parameter [C2]

The functions which may be set for each input are:

? not : contact not used. ? b-diS : Holds the displayed value

With the inputs configured for relative humidity and temperature, the measurement of each process variable is frozen, regardless of display mode (touCH or toGLE)

† With this function active, all internal calculations, alarms and the analog output remain

operational. The unit still uses the updated measurement value, with only the display being held.

? b-AoP : Holds the analog re-transmission at its current value.

? b-cEy : Disables the keypad: the keys do not respond to being pressed, and none of

the menus are accessible.

? r-ALr : Resets any latched alarms (if the measurement value has returned below the

relevant threshold).

? r-dL : Resets the minimum measurement stored in memory.

? r-dH : Resets the maximum measurement stored in memory.

? r-tot : Resets the total and mean values (only with sinGL process input).

33

MEASUREMENT

E

5.3 FLOWCHART REPRESENTING THE ANALOG OUTPUT, DIGITAL LINK AND ALARMS

inPut

View

configuration

no

outPt GAuGE SEt-P tESt

E

CodE

E

15

No

Analog

output

present

rH/t°

Input

rH

E

Analog output

Modification

Assign for rH/t°

measurement

t°

No

oA

E

0_20

oA

E

XXXX

oL

E

XXXX

oH

E

RS-485 comms.

interface present

XX

Ad

E

oA

E

4_20

oA

E

Low end of scale

High end

of scale

Digital communications

Address

oA

0_10

Output type

E

1200

bd

E

Cont. (B)

bd

2400

E

bd

4800

E

34

bd

9600

E

19200

bd

E

Baud rate

ANALOG OUTPUT - COMMUNICATIONS - ALARMS (cont.)

Alarm

threshold

blocked

Threshold 1

Threshold 3

bL_on

Y1

bL_on

Y2

bL_on

Y3

bL_on

Y4

Cont. (B)

E

bL_oF

Y1

bL_oF

Y2

bL_oF

Y3

bL_oF

Y4

Alarm

threshold not

blocked

E

E Threshold 2

E

E Threshold 4

Alarm type Min., Max Low band, High band

SECur

r1

E

Relay 1 Threshold 1

Relay 2 Threshold 2

Threshold 1

Threshold 2

NoSEc

r1

Y1

r2

Y2

AL_Lo

Y1

AL_Lo

Y2

E

E E

E

Assign relay 1

r1_r3

Y1

E

r2_r4

Y2

E

AL_Hi

Y1

E

AL_Hi

Y2

E

Relays 1 & 3 Threshold 1

Relays 2 & 4 Threshold 2

bndLo

Y1

E

bndLo

Y2

E

bndHi

Y1

bndHi

Y2

E

Threshold 3

Threshold 4

AL_Lo

Y3

AL_Lo

Y4

E

Cont. (C)

AL_Hi

Y3

AL_Hi

Y4

35

E

bndLo

Y3

bndLo

Y4

E

bndHi

Y3

bndHi

Y4

E

ANALOG OUTPUT - COMMUNICATIONS - ALARMS (cont.)

Relay 1

Relay set as alarm

Relay 2

Relay 3

Cont. (C)

r1 prote ction

mode

on_AL

r2

E E

No

r1 & r3

coupled

idem

r3

E

No

on_AL

r1

r2

r1 protection

No

On_AL

r3

oF_AL

E

r1

OF_AL

r3

oF_AL

E E

Relay not set as alarm

E

H1

H2

H3

H4

XXX

E

XXX

E

XXX

E

XXX

E

Setting the alarm hysteresis

Threshold 1

Threshold 2

Threshold 3

Threshold 4

Setting alarm bands

Threshold 1

as alarm band

XXX

b1

Threshold 2

as alarm band

Threshold

E

XXX

b2

Threshold 3

as alarm band

Threshold 2

E

No

Relay 4

Alarm

latched

Threshold 1

Threshold 2

Threshold 3

r2 & r4

coupled

idem

r4

E

MEM

Y1

E

MEM

Y2

E

MEM

Y3

E

No

on_AL

r4

E

noMEM

Y1

E

noMEM

Y2

E

noMEM

Y3

E

oF_AL

r4

Alarm not

E

latched

Setting alarm time delay

Threshold 1

Threshold 2

Threshold 3

XXX

b3

Threshold 4

as alarm band

Threshold

E

XXX

b4

Threshold 4

E

XXX

t1

E

XXX

t2

E

XXX

t3

E

No

Y4

Threshold 4

MEM

E

noMEM

Y4

E

36

Threshold 4

Back to MEASUREMENT

t4

XXX

E

¡ CONFIGURING THE ANALOG OUTPUT, DIGITAL COMMUNICATIONS AND ALARMS

To gain access to the output configuration menu:

- Select the outPt menu - see Section 4.3

- Enter code 15 to alter the configuration. Depending on the DP31 model used, the following menus will appear:

- on DP31 and DP31-R: configure alarm relays and thresholds.

- on DP31-AR: configure the analog output, then the alarm relays and thresholds.

- on DP31-CR: configure digital communications, then the alarm relays and thresholds.

5.3.1 Configuring the analog output on DP31-AR

This output allows the analog re-transmission (current or voltage) of the measurement displayed.

§ STEP 1 : Select the process variable to be transmitted where the measurement

inputs are configured for relative humidity and temperature

- parameter [oA]

? rH : relative humidity measurement

? t° : temperature measurement

§§ STEP 2 : Select output signal

- parameter [oA]

? Current: 0/20 mA - 4/20 mA - max. load: 750 Ω ? Voltage: 0/10 V - min. load: 1000 Ω

§ STEP 3 : Set range of measurements to be transmitted This step involves calibrating the output for all or part of the input measurement range (zoom

effect). There must be a minimum of 200 points, regardless of the resolution chosen (200 -

20.0 - 2.00 - 0.200 - 0.0200).

- parameter [oL] : Low scale

- parameter [oH] : High scale

† The number values for the low and the high limits of the scale must fall within the input

measurement ranges defined by the types of sensor used (thermocouples, resistance

probes, etc.) and the mode selected (USEr, Lin, root). They may include the "minus" sign - (+ being implicit). The values for the low and high of the scale may be inverted. In this case, the analog

output signal will follow the inverse of the measurement input signal.

37

5.3.2 Configuring digital communications (on DP31-CR)

§ STEP 1 : Set the equipment's address

- parameter [Ad] : 1 to 63

§ STEP 2 : Set baud rate

- parameter [bd] : 1200 - 2400 - 4800 - 9600 - 19200 bauds.

5.3.3 Configuring alarm relays and thresholds

All DP31 models are fitted with four fully configurable alarm thresholds. The assignment and operation of the alarm relays (1 on DP31 base unit, 4 on the other models), are also configurable.

† LED's Y1, Y2, Y3 & Y4 indicate that the set thresholds have been exceeded, but do not

show the alarm relay status. With relative humidity and temperature inputs, thresholds Y1 & Y2 are assigned to the relative humidity measurements, Y3 & Y4 being assigned to the temperature measurements.

The thresholds and relays are identified by the following messages:

Y1 ðð threshold 1, Y2 ðð threshold 2, Y3 ðð threshold 3, Y4 ðð threshold 4

r1 ðð relay 1, r2 ðð relay 2, r3 ðð relay 3, r4 ðð relay 4

During each step in the configuration procedure, the relevant thresholds and settings (hysteresis, time delay, etc.) are each allocated an identification number matching the appropriate threshold (e.g. hysteresis threshold Y1 ð H1 ; time delay threshold Y3 ð t3...).

§ STEP 1 : Access to the threshold settings:

- parameters [Y1, Y2, Y3, Y4]

? bL_on : threshold blocked ð in the SET.P menu, it will only be possible to read the

relevant threshold value.

? bL_oF : threshold not blocked ð The SET.P menu may be used to alter the threshold

value.

§ STEP 2 : Assign relay r1

- parameter [r1] ? no SEc : r1 is assigned to the alarm output for threshold 1.

? SECur : r1 is assigned to the alarm output in the event of sensor failure or breaks in the

measurement wire.

† In SECUr mode, the operational status of relay r1 is not displayed.

38

§ STEP 3 : Select alarm relay outputs for threshold Y1

- parameter [Y1]

Selection requires noSEC to be set in step 2. ? r1 : relay r1 is independent and assigned to threshold Y1. Relay r3 is automatically

assigned to threshold Y3.

? r1- r3 : relays r1 & r3 are together assigned to threshold Y1. In this case, threshold Y3

has no alarm output relay

§ STEP 4 : Select alarm relay outputs for threshold 2

- parameter [Y2]

? r2 : relay r2 is independent, and assigned to threshold 2. Relay r4 is automatically

assigned to threshold 4.

? r2- r4 : relays r2 & r4 are together assigned to threshold Y2. In this case, threshold Y4

has no alarm output relay

§ STEP 5 : Select alarm threshold type

- parameters [Y1, Y2, Y3, Y4]

? AL-Lo : alarm status triggered when measurement value falls below lower limit.

?? AL-Hi : alarm status triggered when measurement value exceeds upper limit.

? bnd Lo : alarm status activated while measurement values are within a band surrounding

the threshold.

? bnd Hi : alarm status activated while measurement values are outside a band surrounding

the threshold.

§ STEP 6 : Select alarm relay operating mode

- parameters [r1, r2, r3, r4] The alarm relays triggered by the crossing of their respective thresholds can be configured to

operate in the following modes:

? on-AL : relay in alarm status when active (normal protection)

? oF-AL : relay in alarm status when idle (positive protection)

† Where relay r1 is assigned to a sensor failure protection role (see step 2), it is locked in

normal protection mode. Where relays r1 and r3 are both assigned to threshold 1 (see step 3), they operate

identically, according to the mode defined for relay r1.

The same applies to relays r2 and r4 when assigned to threshold 2.

39

ALARM RELAY AND THRESHOLD OPERATING DIAGRAM

Y = alarm threshold (Y1, Y2, Y3, Y4) H = alarm hysteresis (H1, H2, H3, H4) B = alarm band (b1, b2, b3, b4)

§§ RELAY IN ALARM STATUS WHEN ACTIVE (on.AL - normal protection)

STATUS RELAY CONTACT WHEN AC-

TIVE

CONTACT WHEN

IDLE

LED Yx

Alarm active closed open lit

No alarm idle open closed not lit

Alarm no alarm

LOWER THRESHOLD

No alarm Alarm

H1

Y1 Y1+H1

H

H2

Y2-H2

UPPER THRESHOLD

Y2

H

Alarm

measurement

No alarm

Band Band

Y-B Y-B-H

LOW BAND ALARM

Alarm No alarm

Y-B

H

Band Band

Y-B+H

HIGH BAND ALARM

Y

Threshold

Y

Threshold

Figure 7

Y+B

Y+B-H

H

measurement

Y+B+H

Alarm

measurement

Y+B

40

§§ RELAY IN ALARM STATUS WHEN IDLE (of.AL - positive protection)

STATUS RELAY CONTACT WHEN AC-

TIVE

CONTACT WHEN

IDLE

LED Yx

Alarm idle open closed lit

No alarm active closed open not lit

Alarm no alarm

LOWER THRESHOLD

H1

Y1 Y1+H1

H2

Y2-H2

UPPER THRESHOLD

Y2

Alarm

measurement

No alarm Alarm

Alarm No alarm

Y-B

H

Band Band

Y-B Y-B-H

Threshold

LOW BAND ALARM

Band Band

Y-B+H

Threshold

Y

Y+B

Y+B-H

H

No alarm

measurement

Y+B+H

Alarm

measurement

Y+B

HIGH BAND ALARM

Figure 8

41

§ STEP 7 : Latched alarms:

- parameters [Y1, Y2, Y3, Y4] Each alarm set for thresholds Y1 to Y4 may be latched individually. Latching allows the relay to

be maintained in a state of alarm, with the corresponding indication on the display panel, after the measurement has returned to a normal level (measurement < upper threshold or measurement > lower threshold). The state of alarm is maintained until the alarm is reset (even if the unit's power supply is interrupted).

? MEM : alarm latched ? noMEM : alarm not latched

§ STEP 8 : Set alarm threshold hysteresis:

- parameters [H1, H2, H3, H4]

- Adjustable from 0 to 200 display points.

§ STEP 9 : Adjust alarm band:

- parameters [b1, b2, b3, b4]

- Applicable where the alarm is configured in step 5 as low band (bnd Lo) or high band (bnd

Hi). The band may be adjusted to cover from 0 to 250 display points.

- The value set corresponds to a symmetrical band bracketing the alarm threshold (see step 6).

§ STEP 10 : Set time delay before alarm response after exceeding set threshold:

- parameters [t1, t2, t3, t4]

- Adjustable from 0 to 10 sec.

42

6 - OPERATION

6.1 SELF TEST SEQUENCE

Wire the DP31 unit connected according to one of the diagrams in section 3.4. After powering up the meter a few seconds is required in order to initialize the meter. During this time, the messa ges init, followed by end, are displayed and:

- The minimum, maximum, mean and totalling values are reset to zero.

- The analog output is set to its minimum value.

- Any alarms latched before the power supply was interrupted are immediately activated. At the end of this initialization period, the measurement is displayed. The input signal once digitally

processed (scaling, linearization, filtering, etc.) is compared against the alarm threshold values. The unit's various functions (measurement, alarm latching, alarm relays, signalling, sensor failure, line break protection, analog transmission, digital communications, etc.) become operational at this point, depending on the model and the configuration defined by the user.

6.2 ADJUSTING THE ALARM THRESHOLDS

To gain access to the threshold settings:

- Select the SET-P menu

- Enter code 5

- Press key E to scroll through the various thresholds. The four thresholds Y1 to Y4 may then be adjusted within the limits of the measurement range

selected, provided that the configuration permits this operation for adjustment of unlocked thresholds (see step 1 of Section 5.3.3.).

† Hysteresis, time delay and alarm band adjustments are not possible via this menu. They

are accessible in step 8, 9 and 10 of the outPt menu in Section 5.3.3. During the adjustment phase, the alarm function remains operational (relays and display). The new threshold value will be taken into account as soon as it is validated by pressing key E.

The LED's Y1 to Y4 light up when the set threshold is exceeded, and remain lit until the

corresponding alarm is reset (where alarms are latched). They do not indicate the status of the relays, which may be either active or idle while in alarm mode, depending on the configuration chosen (see step 6 of Section 5.3.3).

43

XXXXX

nL

E

MEASUREMENT

E

SEt_P tESt InPut outPt GAuGE

E

CodE

E

Reset

Lowest measurement

+

FLOWCHART SHOWING ALARM THRESHOLD ADJUSTMENT,

ALARM RESETTING AND MAX/MIN MEASUREMENT

RESETTING PROCEDURES

5

E

Threshold adjustment

Threshold

1 locked

No

XXXXX

nH

XXXXX

Y1

XXXXX

Y2

XXXXX

Y3

XXXXX

Y4

E

Highest measurement

+

Alarm threshold 1

+

Alarm threshold 2

+

Alarm threshold 3

+

Alarm threshold 4

+

Back to MEASUREMENT

Threshold

2 locked

Threshold

3 locked

Threshold

4 locked

No

Y2

No

Y3

No

Y1

XXXXX

E

XXXXX

E

Threshold 1

Threshold 2

Threshold 3

Back to MEASUREMENT

44

XXXXX

Y4

E

Threshold 4

6.3 DISPLAYING MEASUREMENTS AND ALARM THRESHOLDS

6.3.1 Displaying and resetting the minimum and maximum measurements and alarm thresholds

- Select the SET.P menu.

- Enter "code", without entering a value.

- Press key E to scroll through variables. ? nL : lowest measurement memorized since the unit was last switched on or reset. ? nH : highest measurement memorized since the unit was last switched on or reset. ? Y1 to Y4 : values of the four alarm thresholds.

There are three options for resetting the alarms and the minimum and maximum measurements:

- By simultaneously pressing keys q and p on the keypad, while the relevant variable is displayed.

- By remote control, via one of the input contacts C1 or C2, configured for this purpose. In this case, all the alarms in memory are reset at the same time .

- By a command from an I/O executive transmitted via the digital link.

6.3.2 Relative humidity and temperature displays

Depending on the configuration chosen (see step 6 in Section 5.1.3) the display is either:

- Alternating (toGLE mode): where the variable displayed rH/t° switches approximately every

three seconds ; or

- Static (touCH mode): one of the two variables is displayed constantly. Switching between variables is performed by pressing and holding keys q and p.

t° measurement rH measurement

q + p q + p

6.3.3 Displaying mean and totalizing functions

These functions are available when:

- the input is configured as otHER SinGL (channel 1) ; and

- the totalizing period is not set to zero: parameter dt > 0 (see step 13 in Section 5.1.1)

Totalizing begins every time the unit is switched on or the totalizing function is reset. Totalizing stops as soon as the time set by the dt parameter has elapsed. The mean value is continuously updated. This value (parameter Au) corresponds to the average of the measurement values obtained after totalizing begins, up to the end of the allotted totalizing period.

45

To display the Mean and Total values from the measurement display:

- simultaneously press keys q and p

ð the mean value [Au] is displayed

- next, press key E

ð the totalizing value is displayed as a mantissa (on the five-digit display) and an exponent

(power of ten on the two -digit display).

Example:

- The total and mean values displayed onscreen are updated every second.

-1

0.1230

247.08

0.0123 02

MEASUREMENT

∇ + ∆

No

othEr SinGL

input

dt = 0

No

Au

Mean

E

24708

Mantissa

Totalizing

∇ + ∆

Reset

Totalizing

Exponent

E

The total and the mean values are reset together. This operation may be performed:

- By pressing the p and q keys simultaneously while the total is displayed.

- By remote control via either of the contact inputs C1 & C2.

- By altering the totalizing time dt.

- Automatically each time the instrument is switched on.

- By a command from an I/O executive transmitted via the digital link.

6.4 ANALOG RE-TRANSMISSION OF MEASUREMENTS

On the DP31-AR, the measurement displayed on-screen is also re-transmitted as an output signal isolated from the measurement input. The signal may be a 0/20 mA or 4/20 mA current, or a 0/10 V voltage (see configuration Section 5.3.1).

46

∞

- Output behavior in the event of sensor failure and abnormal measurements.

MEASUREMENT STATUS

Sensor failure

0/20 mA 4/20 mA 0/10 V > 22 mA > 22 mA > 11 V

ANALOG OUTPUT

High protection Sensor failure

0 mA < 3,5 mA 0 V

Low protection Abnormally high measurement 20 mA < I < 22 mA 20 mA < I < 22 mA 10 V < U < 11 V

Abnormally low measurement 0 mA 3.5 mA < I < 4 mA 0 V

- Admissible load impedance: . current output: max. 750 Ω - min. 0 Ω

. voltage output: max. - min. 1000 Ω

6.5 MALFUNCTION, ERROR MESSAGES AND SYSTEM TESTS

6.5.1 Sensor failure and breaks in the measurement wire

In these cases, a flashing warning is displayed on the five-digit display. ? br - Lo ðð where measurement failure protection is set to low

?? br - Hi ðð where measurement failure protection is set to high. If relay r1 is set in SECUR mode, it switches into the OFF position.

6.5.2 Error messages

These flashing messages appear on the five-digit display, in the following circumstances: ?? Err 1 : alarm threshold outside configured limits. In this event, the relevant threshold

is automatically set to the lowest point on the scale ?? Err 2 : configuration error relative to sensor type or measurement resolution. ?? Err 3 : configuration error relative to analog output type or data transmission speed

via the digital link. ?? Err 4 : totalizing time error - totalizing time not within the permitted adjustment range

dt < 0 or dt > 99999.

6.5.3 Relay and display tests

- Select the test menu

- Enter code 55.

47

Back to

FLOWCHART FOR DISPLAY AND RELAY SYSTEM TESTS

MEASUREMENT

E

tESt inPut outPt GAuGE SEt_P

E

CodE

E

55

No

E

t_diS t_rEL

E E

Relay test

Flashing message Relays activated

LED's Y1, Y2, Y3 & Y4 illuminated

LED test

t_ t_

8.8.8.8.8 t_rEL

E

8. rL

Back to MEASUREMENT

- When message t-dIS is confirmed ð all seven segments and the decimal points on all

indicators should be lit, together with the five LED's.

- When parameter [t-rEL] is entered ð the [t-rEL] message flashes. By pressing key p, all the alarm relays are switched into the active position, enabling the user to

check the correct operation of their system.

48

6.6 DIGITAL COMMUNICATIONS

The DP31-CR is fitted with a digital communications system, allowing an I/O executive to be used to read measurements, adjust thresholds, reset alarms, configure the instrument, etc.

6.6.1 Phy sical connection and communications protocol

§ RS-485 : EIA standard, differential signals, with units connected in parallel by means of a two -

wire cable (up to 32 DP31-CR units with no repeater).

To ensure correct polarity when cabling the RS-485 network, the communications card is fitted

with 301 kΩ resistors linking lines A and B to the +5 V and 0 V terminals.

§ Communications protocol: MODBUS/J.BUS, in slave mode - binary code (RTU).

- 8 bit characters with 1 start bit, 1 stop bit and no parity.

- Configurable baud rates: 1200, 2400, 4800, 9600 and 19200 baud.

- Each unit must be identified by means of a slave address from 1 to 63 (see Section 5.3.2).

- Instruction codes: 3 or 4 : read n words

6 : write 1 word 16 : write n words (maximum 10 consecutive words).

Any decimals contained in the data will not be transmitted.

- Error codes: 1 : Unknown function code

2 : Address incorrect 3 : Incorrect data 4 : Equipment busy or not ready

6.6.2 Variable/parameter addresses and accessibility

Using the MODBUS protocol, the addresses are the same as with the J.BUS-1 protocol. The addresses not mentioned are reserved by the system.

J-BUS Ad-

dress

Access Label Parameters or variables

1 R MES.U1 Measurement displayed from channel 1 2 R M ES.U2 Measurement displayed from channel 2 3 R MES.nL Lowest measurement in memory 4 R MES.nH Highest measurement in memory 5 R MES.Au Mean measurement value over totalizing pe-

riod

10 R TOT.LSB Totalizing: LSB value of the mantissa 11 R TOT.MSB Totalizing: MSB value of the mantissa

49

J-BUS Address Access Label Parameters or variables

12 R TOT.EXP Totalizing: exponent value 201 R/W Y1 Alarm threshold Y1 202 R/W Y2 Alarm threshold Y2 203 R/W Y3 Alarm threshold Y3 204 R/W Y4 Alarm threshold Y4 205 R/W H1 Hysteresis H1 for threshold Y1: 0 to 200 206 R/W H2 Hysteresis H2 for threshold Y2: 0 to 200 207 R/W H3 Hysteresis H3 for threshold Y3: 0 to 200 208 R/W H4 Hysteresis H4 for threshold Y4: 0 to 200 209 R/W t1 Alarm delay Y1: 0 to 10 210 R/W t2 Alarm delay Y2: 0 to 10 211 R/W t3 Alarm delay Y3: 0 to 10 212 R/W t4 Alarm delay Y4: 0 to 10 213 R/W b1 Alarm band for threshold Y1: 0 to 250 214 R/W b2 Alarm band for threshold Y2: 0 to 250 215 R/W b3 Alarm band for threshold Y3: 0 to 250 216 R/W b4 Alarm band for threshold Y4: 0 to 250 217 R/W oL Analog output - Low scale 218 R/W oH Analog output - High scale 219 R/W oF

Measurement offset: ±500 220 R/W Fi Measurement filter: 0 to 20 222 R/W CJ Cold junction value for thermocouple input 223 R/W Lo Low limit measurement scale 224 R/W Hi High limit measurement scale 225 R/W tb line break detection threshold

226

R/W

AL.1

- Bits 0 to 3 ð position of measurement relative to thresholds.

0 = no alarm 1 = alarm

- Bit 0 ð threshold Y1, bit 1 ð threshold Y2, bit 2 ð threshold Y3, bit 3 ð threshold Y4

- Bit 4 ð setting for min. and max. measurements in memory for the rH/t° input.

0 = t°, 1= rH

- Bit 5 ð Assignment of relay r4 :

0 = threshold Y4 1 = threshold Y2 coupled with r2

- Bit 6 ðð Assignment of relay r3 :

0 = threshold Y3

50

J-BUS Address Access Label Parameters or variables

226

227

R/W

AL.1

AL.2

- Bit 7 ð assignment of relay r1 : 0 = threshold Y1, 1 = sensor failure protection

- Bits 8 to 11 ð alarm status latching 0 = not latched, 1 = latched Bit 8 ð r1, Bit 9 ð r2 Bit 10 ð r3, Bit 11 ð r4

- Bit 12 ð assignment of analog output with rH/t ° input

o = t°, 1 = rH

- Bit 13 ð assignment of USEr linearization with

Process input

0 = table, 1=tare

- Bits 14-15 ð not used

- Bits 0 to 3 ð alarm latching setting:

0 = not latched, 1 = latched bit 0 ð threshold Y1, bit 1 ð threshold Y2 bit 2 ð threshold Y3, bit 3 ð threshold Y4

- Bits 4 to 7 ð status of relays in alarm mode

0 = oF - AL, 1= oN-AL bit 4 ð r1, bit 5 ð r2, bit 6 ð r3 bit 7 ð r4

- Bits 8 & 9 ð alarm type for threshold Y1:

0 = low, 1 = high, 2 = low band, 3 = high band

- Bits 10 & 11 ð alarm type for threshold Y2:

0 = low, 1 = high, 2 = low band, 3 = high band

- Bits 12 & 13 ð alarm type for threshold Y3:

0= low, 1= high, 2= low band, 3 = high band

- Bits 14 & 15 ðalarm type for threshold Y4:

0 = low, 1 = high, 2= low band, 3 = high band

228

R/W

InPut

- Bits 0 & 1 ð measurement input type:

0 = othEr process 1 = temperature t°, 2 = resistor

- Bits 2 & 3 ðmeasurement input type:

0 = SinGL, 1 = diFF, 2= rH/t° 3 = GAuGE

- Bits 4 to 7 ð measurement input signal type:

0 = ± 20 mA, 1= 0/20 mA 2= 4/20 mA, 3 = ±50 mV 4 = 0/50 mV, 5 = 10/50 mV 6 = 0/0.1 V, 7 = 0/1V, 8= 0/10 V

51

J-BUS Address Access Label Parameters or variables

228

229

R/W

InPut

FLAG1

- Bits 8 to 12 ð sensor type :

0 = K thermocouple, 1 = J thermocouple, 2 = T thermocouple, 3 = S thermocouple, 4 = R thermocouple, 5 = B thermocouple, 6 = E thermocouple, 7= Ni Ni Mo18 thermocouple , 8 = WRe 5/26 thermocouple at 0,1° 9 = WRe 5/26 thermocouple at 1°, 10 = N thermocouple, 11 = L thermocouple 12 = Pt100 D probe, 13= Pt 100 J probe, 14 = Ni 100 probe, 15 = UsER, 16 = linear, 17 = square root, 18 = 200.00 Ω RESiS

19= 2000.0 Ω RESIS .

- Bits 13 to 15 ð decimal point setting 0 = 0 - 1=0.0 - 2=0.00 - 3= 0.000 4 = 0.0000

- Bits 0 to 3 ð measurement unit setting

0 = °C, 1=°F, 2=rH, 3=PA, 4=PH, 5=bA 6 = A, 7 = nA, 8=U, 9=nU, 10=.h, 11=.n 12=..S, 13=Li, 14=%, 15= no unit

- Bit 4 ð Cold junction compensation 0 = internal CJ, 1= external CJ

- Bit 5 ð Sensor failure measurement protection setting 0 = low (Lo), 1= high (Hi)

- Bit 6 ð temperature measurement via rH/t° input 0 = linearized Lin, 1= non linearized noLin

- Bit 7 ðð Current display from process input 0 = mean value Au, 1= totalizing value

- Bits 8 to 11 ð alarm threshold (Y1 to Y4) locking 0 = unlocked ur-oF, 1= locked ur.on Bit 8 ð Y1, Bit 9 ð Y2, Bit 10 ð Y3 Bit 11 ð Y4

- Bits 12 & 13 ð analog output specification

0 = 0/20 mA, 1=4/20 mA, 2=0/10V

- Bit 14 ð rH/t° measurement display mode 0 = static touCh, 1= alternating ToGLE

- Bit 15 ð Current display from rH/t° inputs 0 = measurement; t°, 1 = rH measurement

52

J-BUS Ad-

dress

230

Access Label Parameters or variables

R/W

FLAG2

- Bits 0 to 2 ð baud rate via digital link

0=1200, 1=2400, 2=4800, 3=9600, 4=19200

- Bit 3 ð relative humidity input type

0 = USEr, 1= linear

- Bits 4 & 5 ð temperature signal type via rH/t° input 0 = Pt100 Ω, 1=0/20 mA, 2= 4/20 mA, 3 = 0/1 V

- Bits 6 & 7 ð humidity signal type via rH/t° input 0 = 0/20 mA, 1=4/20 mA, 2=0/1 V,3=0/10 V

- Bits 8 to 11 ð assignment of contact input C1 0 = not used not, 1 = hold measurement b-diS, 2= hold analog output b-AoP, 3= disable

keypad b-CEY, 4= reset alarms r-ALr, 5= reset min. measurement r-dL, 6=reset max. measurement r-dH, 7= reset totalization r-tot

- Bits 12 to 15 ð assignment of contact input C2 : Same bits 8 to 11.

231 R/W USG Measuring bridge power supply voltage 233 R/W nS Number of segments in USEr linearization

USEr : 0 to 24

234 R/W Co Cold junction for USEr thermocouple input 301 R/W dt Duration of totalizing period - LSB : 0 to 32767 302 R/W dt Duration of totalizing period - MSB : 32768 to 99999

501

to

550

R/W

TabLE

Variables in the user-defined linearization table See step 8 in Section 5.1.1 (page 21)

- Addresses 229 & 230 MUST be correctly configured prior to programming this memory area.

- The odd-numbered addresses 501, 503 ... 549 contain

the measurement input values S0, S1, S2, etc., which must lie within the set scale limits.

- The even-numbered addresses 502, 504 ... 550 contain

the corresponding number of display points

(-10,000 to + 20,000). Segment 0 ð 501 : input signal in mV, mA, V.

502 : number of points Segment 1 ð 503 : input signal in mV, mA,V.

504 : number of points Segment 24 ð 549 : input signal

600 W r-ALM 0 ð reset min. and max. measurements

1 ð reset the four alarms stored in memory

601 W r-tot 0 ð reset mean and totalizing values, and reinitialize cal-

culation period.

53

7 - CALIBRATION

Each DP31 unit leaving the factory complies with technical specifications, making calibration unnecessary when first using the equipment. Nevertheless, the characteristics of the electronic components may slowly change over time. Therefore, the input/output ports should be calibrated at regular intervals in order to preserve the unit's technical characteristics.

The DP31 is fitted with an automatic calibration system, eliminating the need to make adjustments inside the indicator. The syst em functions by using software correction to match internal reference values with the external calibration signals sent to the inputs.

7.1 CONDITIONS AND EQUIPMENT REQUIRED FOR CALIBRATION

- Stable ambient temperature of 23°C ±1°C

- Prior to calibration, the indicator should be switched on for 45 minutes

- Power supply voltage at nominal service rating ±1%.

- A stable, multiple voltage power supply, accuracy-rated to within 0.01%.

- A 200,000 point digital multimeter (class A)

- Two 385 Ω resistors - 0.02%

- One 2500 Ω resistor - 0.02%

- One 100 Ω resistor - 0.02%

† For safety reasons, access to the calibration menu is protected by an internal locking pin

and a software code. This pin, located on the left side of the unit, must be set to “closed” in order to enter the CALi menu.

After selecting this menu, code -13 must be entered in order to access the various calibration procedures. These procedures require the input/outputs to be individually calibrated.

Front

CLOSED = ACCESS TO CALIBRATION MENU

OPEN = USER MODE

Figure 9

† Upon completion of the calibration procedure, the locking pin must be opened to prevent

further access to the CALi menu

54

MEASUREMENT

E

7.2 Calibration flowchart

AC

-13

inP ?

E

tESt

locked

CALi ?

E

CodE

No

E

Input calibration

inPut outPt GAuGe SEt_P

No

Back to MEASUREMENT

1.200?

AC

ZEro?

AC

ZEro

AC

rEF ?

AC

rEF

AC

E

0.150?

AC

E

Cold junction

AC AC

Calibration of current zero value

CJ

Calibration of current reference value

0.075?

AC

E

0.0375

AC

Calib AO current

CJ ? AoPi?

E

AO card present

nP Li?

XX.X

E

AC

E

nPLi

CJ value adjustment

AC

E

nP Hi?

AC

E

nPHi

AC

E

No

Set min. n° of points

Set max. n° of points

r 385?

AC

E

Calib AO voltage

r 2000

AC

E

Calib. measuring bridge

12.u1?

AC

E

No calibration

AoPu? GAuG? noCAL

AC AC AC

E E E

AO card present

nPLu?

AC

nPLu

AC

nPHu?

AC

nPHu

AC

E

SG_5?

AC

SG_5

SG10?

AC

SG_10

AC

E

5 volt adjustment AC

10 volt adjustment

12.u2?

AC

E

Back to MEASUREMENT

55

7.3 Calibrating the measurement inputs

Given the high degree of accuracy of the DP31 unit, eight types and levels of input are factory-calibrated.

† Only one type of calibration by the user is necessary, depending on the type of signal used

by the application.

Both measurement inputs are calibrated simultaneously, unless 0/10 V signals are used, in which case the calibration procedure must be performed for each channel individually.

† Prior to calibration and checking procedures, always ensure the parameters oF

(measurement offset) and Fi (measurement filter) are set to 0. If you find that they aren’t, access the input configuration mode and set these parameters to 0.

7.3.1 Connections

§ Input calibration: thermocouples, voltage: 0/50 mV, 10/50 mV, ±±50 mV, 0/100 mV and 0/1 V; current 0/20 mA, 4/20 mA and ±±20 mA.

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

+ - + -

P N

85 to 264 VAC

24/48 VAC

Generator

mV = V=

+

§ Calibration of the 10 V voltage input on channel 1

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

- +

P N

85 to 264 Vac

24/48 Vac/dc

+ -

Generator

0/10 V=

§ Calibration of the 10 V voltage input on channel 2

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

85 to 264 Vac

24/48 Vac/dc

56

+

Generator 0/10 V=

- +

-

§ Calibration of the resistance probe and 200 ΩΩ resistor inputs

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

-

R R

85 to 264 Vac

24/48 Vac/dc

§ Calibration of the 2,000 ΩΩ resistance probe input (channel 1 only)

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

P N

85 to 264 Vac

24/48 Vac/dc

R = 385 Ω - 0.02 %

R

R = 2500 Ω - 0.02 %

7.3.2 Calibration procedure

- Connect the measurement inputs as indicated.

- Select the inP menu and press E.

- Select the appropriate menu for the type of input used and press E.

required to the

ZEro ?

AC

ð message is displayed. Send the minimum value

measurement inputs and press E.

ZEro

AC

ð message is displayed with the AC parameter flashing

throughout the zeroing

procedure. Once the minimum value has been calibrated:

rEF ?

AC

ð message is displayed. Send the required reference value to the

measurement inputs and press E.

rEF

AC

ð message is displayed with the AC parameter flashing the reference calibration procedure. Once the reference value has been calibrated, the display returns to displaying the MEASUREMENT variable.

57

Input sensors or ratings Calibration menu

option

Required input values

Thermocouples: B, R, S, T & W/Re 0.0375 0 mV 37.5 mV

Thermocouples: E, J, K, L, N & Ni-Ni Mo18 Voltage: 0/50 mV, 10/50 mV, ±50 mV

Voltage: 0/100 mV 0.150? 0 mV 150 mV Voltage: 0/1 V 1.200? 0 V 1,200 V Voltage: 0/10 V on channel 1 12.U1? 0 V 12,000 V Voltage: 0/10 V on channel 2 12.U2? 0 V 12,000 V Resistance probes: Pt 100 D, Pt 100

J & Ni 100

Resistor 0/2000 Ω r2000 0 Ω 2,500 Ω

0.075

r385? 0 Ω 385 Ω

Zero Ref.

0 mV

75 mV

7.3.3 Cold junction temperature adjustment

- Remove the connector from terminal strip 2 and measure the temperature between terminals

13 & 14 very accurately (resolution 0.1°).

- Select the CJ ? menu and press E

- Enter the internal temperature measurement obtained from the terminal strip by pressing the q

and p keys, followed by E

7.4 Calibrating analog outputs

The calibration procedure for the analog output on the DP31-AR requires no inputs to be connected to the instrument input circuitry. Two points are calibrated, corresponding to the upper and lower limits of the scale configured.

7.4.1 Calibrating current outputs

- Connect as follows:

1 2 3 4 5

P N

85 to 264 Vac

24/48 Vac/dc

- Select the AoPi? menu and press E.

- Message nPLi? is displayed, requesting confirmation to set lower limit on scale. Confirm.

- Message nPLi is displayed with the AC parameter flashing. Press the q and p keys until the

voltage displayed on the voltmeter reads 0.04000 V (output current 0.4 mA).

17 18 19 20

S = 100 Ω - 0.02 %

S

V

+ -

58

- Confirm this setting.

- Message nPHi? is displayed, requesting confirmation to set upper limit on scale. Confirm.

- Message is displayed with the AC parameter flashing. Press the q

and p keys

nPHi

AC

until the voltage displayed on the voltmeter reads 2.00000 V (output current 20 mA).

- Confirm this setting ð back to measurement display.

7.4.2 Calibrating voltage outputs

- Connect as follows:

1 2 3 4

P N

85 to 264 Vac

24/48 Vac/dc

17 18 19 20

V

+ -

- Select the AoPu? menu and press E.

- Message nPLu? is displayed requesting confirmation to set lower limit on scale. Confirm.

- Message nPLu is displayed with the AC parameter flashing. Press the q and p keys until the

voltage displayed on the voltmeter reads 0.00000 V.

- Confirm this setting.

- Message nPHu? is displayed, requesting confirmation to set upper limit on scale. Confirm.

- Message nPHu is displayed with the AC parameter flashing. Press the q and p keys until the

voltage displayed on the voltmeter reads 10.0000 V

- Confirm this setting ð back to measurement display.

7.5 Calibrating the measuring bridge power supply voltage

- Connect as follows:

1 2 3 4 5 6 7 8

+

V

P N

85 to 264 Vac

24/48 Vac/dc

-

- Select the GAuG? menu and press E.

- Message SG-5? is displayed, requesting confirmation to set the minimum voltage. Confirm.

- Message SG-5 is displayed with the AC parameter flashing. Press the q and p keys until the

voltage displayed on the voltmeter reads 5.0000 V.

- Confirm this setting.

- Message SG10? is displayed, requesting confirmation to set maximum voltage. Confirm.

- Message SG10 is displayed with the AC parameter flashing. Press the q and p keys until the

voltage displayed on the voltmeter reads 10.0000 V.

- Confirm this setting ð back to measurement display.

59

8 - TECHNICAL SPECIFICATIONS

The unit's technical characteristics are specified for the following reference conditions:

- Ambient temperature: 23°C ± 1°C

- Power supply: service voltage 230 Vac ± 1%

- Warm-up time: 45 min.

8.1 Measurement inputs

8.1.1 General characteristics

- Accuracy: ± 0.1 % of the maximum measurement range of the relevant input, ±1 digit.

- Effect of variations in power supply: none in the range 85 to 264 Vac - 45 to 65 Hz.

- Input resolution: 15 bits.

- Sampling time: : - 100 ms with single measurements current, voltage, RTD and T/C with external CJC

- 200 ms with differential, rH/t° and T/C with internal CJC measurements

- Typical response time for a single measurement at 90 %:

0.5 sec where filter Fi = 0 5 secs where filter Fi = 10 10 secs where filter Fi = 20

- Input impedance > 1 MΩ except for 10 V (100 KΩ) and mA inputs.

- Maximum input voltage tolerated: 10 times the input rating.

- Rejection ratios: . Serial mode: 80 dB

. common mode: 150 dB

- Electrical strength: . input/ground 2000 V = / 1 mn

. input/output: 1000 V =/ 1 mn

- Insulation resistance: > 105 M Ω

8.1.2 RTD probe temperature inputs

PROBE MEASUREMENT RANGE

Pt 100 Ω DIN -200/800 -328/1472 ± 1.1 ± 2

Pt 100 Ω JIS -190/600 -310/1112 ± 0.8 ± 2

Ni 100 Ω -60/180 -76/356 ± 0.3 ± 1

°C °F 0.1° 1°

RESOLUTION ACCURACY IN °C

- Current through probes: 200 µA

- Intrinsic fluctuations within operating range (-5 to +55°C) . 2.3 mΩ/°C, (0.006°C/°C with Pt 100 Ω DIN probe).

- Effects of wiring resistance: . 3 wire assembly: 0.01°C per Ω . 4 wire assembly: 0.006°C per Ω.

60

- Sensor failure and measurement line break protection: . Time before protection activated (where filter Fi = 0): 1 sec.

. Transition impedance: 380 Ω (sensor resistance). . Return time after circuit restored: 10 secs.

8.1.3 Thermocouple temperature inputs

THERMOCOUPLE TYPES MEASUREMENT RANGE

B (Pt30%Rh/Pt 6% Rh) 100/1800 212/3272 ± 2 ± 3 E (Ni-Cr/Cu-Ni) -200/950 -328/1742 ± 1.3 ± 2

J (Fe/Cu-Ni) -200/870 -328/1598 ± 1.2 ± 2 K (Ni-Cr/Ni-Al) -200/1232 -328/2250 ± 1.5 ± 2 L (Fe/Cu-Ni) -200/850 -328/1562 ±1.2 ± 2 N (Nicrosil/Nisil) -200/1300 -328/2372 ± 1.6 ± 3 Ni/Ni-Mo 18 0/1,400 32/2,552 ± 1.5 ± 2 R (Pt 13% Rh/Pt) -50/1760 -58/3200 ± 1.9 ± 3 S (Pt 10% Rh/Pt) -50/1760 -58/3200 ± 1.9 ± 3 T (Cu/Cu-Ni) -200/400 -328/752 ± 0.7 ± 2 W/Re 5/26 (Hoskins 1974) 0.0/1800.0 -32.0/3272.0 ± 1.9

W/Re 5/26 (Hoskins 1974) 0/2300 32/4172

°C °F 0.1° 1°

RESOLUTION ACCURACY IN °C

DISCOUNTING CJ

± 3

- Cold junction compensation error: typically ± 1°C

- Intrinsic fluctuations within operating range (-5 to +55°C): 1 µV/°C including cold junction

compensation.

- Effect of wiring resistance: 0.25 µV/Ω

- Sensor failure and measurement line break protection: . Time before protection activated (where filter Fi = 0): . 2 secs. with couples B, R, S, T, W/Re 5/26.

. 4 secs. with couples E, J, K, L, Ni/Ni-Mo18,

- Transition impedance with protection active: > 80 kΩ

- Return time after circuit restored: 3 secs.

8.1.4 Process, current, voltage and measuring bridge inputs

- Current signal: 0/20 mA, 4/20 mA, ± 20 mA ( with 2.5 Ω ± 0.1% external shunt).

- Voltage signal: 0/50 mV, 10/50 mV, ± 50 mV, 0/0.1 V, 0/1 V, 0/10 V.

- Measuring bridge: ± 50 mV

- Adjustable scale: . -10000 to +20000 points with LIN and USEr input modes . 0 to 20,000 points with square root calculations

- Accuracy (without external shunt): 0.1% of input signal rating.

- Decimal point position: 0 - 0.0 - 0.00 - 0.000 - 0.0000

61

8.1.5 Resistor inputs r200 & r2000

- Adjustable linear scale : 0.00 / 200.00 Ω

0.0 / 2000.0 Ω

- Current through resistors: . 200 µA with r200

. 400 µA with r2000

8.2 Analog output

- Current signal: . Rating: 0/20 mA, 4/20 mA

. Min. load: 0 Ω . Max. load: 750 Ω

- Voltage signal: . Rating: 0/10 V

. Minimum load: 1000 Ω

- Accuracy: 0.1% of relevant scale range for measurement displayed

- Resolution : 14 bits (16384 points)

- Refresh time: 100 ms.

- Electrical strength: . Measurement input / outputs: 1,000 V =

. Output / ground: 1,000 V =

8.3 Alarm relays

- A dry reversing contact is available on each relay.

- Contact cut-off capability:

- 5A - 230 Vac at 50/60 Hz with resistive load.

- number of operations on a resistance circuit:

- 5,000,000 for 0.2 kW

8.4 Power supplies

- 85 to 264 Vac 50/60 Hz - 10 VA

- 24/48 Vac/dc ± 10% - 10 VA

- Electrical strength: . Power supply / input: 3500 V = . Power supply / output: 1 1000 V = . Power supply / ground: 2000 V =

62

- Insulation resistance: . Power supply / ground: > 105 M Ω . Other circuits / ground: > 105 M Ω

- Transmitter power supply: 24 V at a maximum of 30 mA - with short-circuit protection.

- Measuring bridge power supply: 4.5 to 10.2 V at a maximum of 30 mA. Adjustable in 1 mV increments.

8.5 Environmental and climatic conditions

- Nominal operating conditions:

- temperature: -5 to +55°C

- relative humidity: 10 to 90% with no condensation

- Storage temperature limits: -20 to +70°C

- Display panel sealing: IP65

- Terminal strip protection level: IP20

- Casing with automatic cut-out: UL 94-Vo

- Detachable terminal strips: screw terminal clamping area - 2.5 mm²

- Dimensions: 1.89” x 3.78” x 4.53” (48 x 96 x 115mm) behind flange

- Weight: 11.3 oz (320 g)

8.6 Electromagnetic compatibility

- DP31 equipment complies with European Community Directive 89/336 . Emissions: EN 50081 - 1

. Noise immunity: EN 50082 - 2

- DP31 equipment complies with CEE Directive 73/23, concerning low voltage equipment,

modified by CEEE Directive 93/68

. Safety rules EN 61010-1.

²²²²²²²²²²²²²²

63

Omega Products DP31 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual