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
Y3 Y4
LN
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
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
E
E
Modification
in in in
in in
E
E
E
E
E
E
E
E
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
No
USEr
mode
Singl
input
tAbLE
in
E
E
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
E
E
E
E
Number
of
segments
XX
nS
XXXXX
n0.
XXXXX
n1.
XXXXX
n2.
XXXXX
24.
E
E
E
E
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
No
Back to
measurement
17
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