DPI 280 Series Digital Pressure and Process Indicator

g
D P I
2 7 0 / 2 8 0
S e r i e s
GE Druck
Digital Process Indicators
High accuracy 0.01% F.S.
Wide range of process measurements
Extensive range of programmable features
Built-in sensor energisation
RS 232/485 and analogue interfaces
IP65 sealed front panel
DPI
270/280
Series
Digital Process Indicators
Intelligent Monitoring
The versatile DPI 270 (miniature) and DPI 280 (general) series of digital
process indicators are “smart” instruments for use with a wide range of
process sensors and signal inputs.
When used with the Druck range of pressure transducers or transmitters,
a direct reading in pressure is provided. The DPI 284/5 internal pressure
sensor can be supplied up to 60 bar or external pressure sensor up to
700 bar . Direct input of thermocouples and PT 100 resistance
thermometers is available for temperature monitoring.
Powerful application oriented software features enable the DPI 270/280
series to be utilised for all measurement parameters and sensor types,
making these panel meters suitable for many process applications.
Process functions
Alarms
Up to 4 open collector or 2 x SPST alarms are available:
High or low, low with disable during start-up, on/off controller with direct
or reverse action, high or low deviation. Alarm features include:
Adjustable on/off delay in seconds, adjustable hysteresis,
latching: non/manual reset/fail-safe. Operator adjustable set-point.
Peak/valley detection
Configurable functions allow detection of peak and/or valley. Operator
access to view and reset.
Dual scaling (DPI 28X only)
Measurement can be displayed in either of two scale units (e.g. bar and
psi). Each scale can have different formats and resolution. Toggle
between the two scales by assigning an operator function key.
Tare and gross/nett functions
Tare off the current displayed reading and toggle between the gross and
nett measurement values by assigning operator function keys.
Analogue output
For the DPI 27X, this option is programmable for 0/4-20mA,
0/1-5V or 0-10V. For the DPI 28X it is available as 0/4-20mA, 0-2V, 0/1-5V
or 0-10V. Output is proportional to display reading, net and peak/valley or
unlinearised input.
Serial communications (DPI 28X only)
Optional, isolated, serial communications interface for full access to all
instrument functions and features. Dual port RS 232 (for multi-drop
connection) or twisted pair RS 485 (for distributed multi-drop operation).
Printer Output (DPI 27X only)
Optional isolated RS232 printer output. Front key single print or
continuous printing operation.
Password protection and calibration locking
Instrument configuration can be protected by a 4 digit password.
Calibration data can be locked to guarantee calibration certificates.
Linearisation
The DPI 28X has 17 calibration correction points. This provides a
powerful scaling facility for sensor linearity improvement and non-linear
scaling for applications such as flow and tank volume measurement. In
addition, the DPI 270/271 has ‘square root’ capability.
Infra Red Pen and MLink (DPI 27X only)
Windows based MLink software configures the DPI 27X via an RS232
link /infra red pen. Fast and simple set up, ideal for multiple
configurations.
Typical Installations
The DPI 270/DPI 280 series can be used simply on the benchtop,
rack mounted into an indication bank (below) or even trolley
mounted for portable workshop applications (above).
D P I
2 7 0 / 2 8 0
S e r i e s
Applications
Low Differential Pressure/HVAC
Used with LP series sensors for a precise
indication of low pressure from just 1mbar FS.
Temperature Control
Indicator alarm outputs used for temperature
control on small ovens or heating systems.
Direct/reverse-heating options are provided.
Humidity Display & Monitoring
The DPI282 can be connected to a humidity
transmitter to display the ambient conditions
of any outdoor or indoor area.
This combination is ideal for Pharmaceutical,
Chemical and silicon process facilities
where clean rooms need to be maintained.
Analogue output can be configured to provide
reverse output proportional to temperature.
Datalogging via RS232/485 to a remote PC or
via analogue output to a local chart recorder.
Pressure Leak Testing
The panel meter can be used as a pressure
measurement device in a leak test system
e.g. for testing pressure seal integrity.
Pressure Calibration
The DPI280 connected to a PDCR 4010 with
improved accuracy to 0.05% FS is suitable for
calibration of many pressure devices.
Inline Process Pressure Monitoring
For display of pressures on a process pipeline
such as water feeds, gas supply/distribution
piping, liquid or gas containment/packaging.
External input HOLD function can be used to
read final pressure from a timer or PLC.
The PV411 hand pump can generate manifold
test pressures for multiple DUTs.
4-20 mA output used for relaying pressure
data from remote stations.
Load Cell/Weighing
The DPI280 'Auto cal' feature is designed for
use with load cells in weighing applications.
It can remove deadweight errors on the cell.
Liquid Level Monitoring
Level measurement and control of sewage,
waste/potable water, oils, fuels, lubricants,
dairy products, beverages,coolants etc.
Hydraulic Testing
Rugged Druck high pressure sensors
(>3000 psi) can be used to test hydraulic
systems for example on automotive vehicles.
For weigh bridges, hopper contents, scales
of all sizes, either production or point of sale.
Linearisation and scaling functions achieve
accurate measurements of tank contents.
Peak loads captured/recalled after the test to
ensure pressure safety limits are not exceeded.
DPI 270 series
DPI 280 series
Miniature 4 digit LED
General 4 /2 digit LED
DPI 284/285
Internal pressure Sensor
1
For use with external sensors
Direct pressure connection
Pressure
Transducer
Pressure
Transmitter
Differential
Pressure
Very low
pressure
Depth
& Level
Temperature
RTDs, T/C
Humidity
& moisture
Load Cells
& force
SPECIFICATIONS
Select and state the model number when ordering overleaf e.g. DPI 284. Also refer to general specifications and options (opposite).
INPUTS
Voltage
2000mV
100mV
20 Volt
10 Volt*
Current
20mA
Temperature
Thermocouple
RTD**
External Pressure Transducer
Millivolt input
Voltage input
Current input
Internal Pressure Transducer
0 to 60 bar
OUTPUTS
Sensor Excitation
10 Volt regulated
24 Volt unregulated
Alarms
4 Open collectors
2 Relay contacts
* Includes 1-5V and 0-10V
** PT100 and Ni100
DPI 270 DPI 271 DPI 272 DPI 273 DPI 280 DPI 281 DPI 282 DPI 283 DPI 284 DPI 285
Option J Option J
Option J Option J
GENERAL
Accuracy
DPI 27X
DPI 28X
Voltage input
0.02% FS
0.01% FS
Current input
0.03% FS
0.02% FS
Pressure input (typical)
0.1% FS
0.1% FS (0.05% FS linearised)
Temperature (Nominal)
0.3C
0.3C
Display count range
-1999 to +9999
-19999 to +20999
Display height
14.2mm
14.2mm
A/D resolution
18 bit (1 part in 200,000)
18 bit (1 part in 200,000)
Display update
200msec max.
10 per second
Vac Input
85-264 Vac
90-132/200-264 Vac
Frequency, Power
47 - 70Hz, 4 VA
47 - 70Hz, 4 VA
ac Isolation (Input/Output)
>2500 Vdc (1500Vrms)
>2500 Vrms
Display
Power Supplies
Vdc Input
10-40V, 300mA @ 10V
dc Isolation (Input/Output)
>500 Vrms
Environmental
Operating temperature
-10C to 60C
-10C to 60C
Storage temperature
-40C to 85C
-40C to 85C
Humidity
0 to 90% RH non-condensing
0 to 90% RH non-condensing
200 gms
500 gms
Physical
Weight
Pressure Connnection (DPI 284/285 only)
IP65 sealed front panel
G1/8 BSP or 1/8 NPT
Standard
Option (E)
Safety
CE marked
Meets CE requirements for safety, EMC immunity and emissions
OPTIONS
Select and state the option codes required for each instrument when ordering overleaf e.g. (A), (B), (D)
DPI 270 DPI 271 DPI 272 DPI 273 DPI 280 DPI 281 DPI 282 DPI 283 DPI 284 DPI 285
Matched and tested with Druck sensor
Standard Calibration
Linearised Calibration for
improved accuracy
Analogue output***
0 to 20 mA (Option A)
0 to 10 Vdc*
Digital Output ***
RS232 (Option B)
RS485 (Option C)
Printer ouput (I)
Power Supply
24 Vac/48 Vac (Option K)
Display
Green Display (Option G)
Blank front Panel (Option F)
Case
1/8 DIN adaptor (Option M)
IP 65 Cover (Option E)
Special
Infra red pen** (Option H)
* Includes 1-5V and 0-2V. (Option A on DPI 27X, option D on DPI 28X).
** Provided with free configuration software to setup the DPI27X series.
*** Only one of these options may be fitted on the DPI 28X series.
D P I
2 7 0 / 2 8 0
S e r i e s
Digital Pressure and Process Indicators
RELATED PRODUCTS
Laboratory and workshop instruments
Druck manufacture a comprehensive range of pressure instruments.
Included are Pressurements industrial deadweight testers and Ruska high
precision controllers and piston gauges. A selection is shown below:
Pressure transducers and transmitters
Druck manufacture an extensive range of pressure transducers and
transmitters, supplied to standard or custom designs.
SUPPLIED AS STANDARD
(1)
(2)
Detailed user guide supplied with the instrument.
Calibration certificate for any matched sensor supplied.
ORDERING INFORMATION
The unit can be ordered with or without sensor and calibration. For all
indicators, please state the following:
(1)
Type number.
(2) Options.
When interfaced to remote sensors
(3) Pressure range and scaling.
(4) Gauge, differential or absolute. (N.B. line pressure for differential)
(5) Transducer or transmitter specification/type - see relevant sensor
datasheet for ordering information.
When internal pressure sensor supplied (DPI 284/285):
(3) Pressure range and scaling.
(4) Gauge or absolute reference.
(5) Pressure connection.
CALIBRATION STANDARDS
Portable field calibrators
Druck manufacture a wide range of portable pressure, temperature and
electrical field calibrators particularly suitable for use in remote outdoor
conditions. A selection is shown above.
Calibration management software
Druck Intecal-W is a Windows® based package which supports laboratory
and field based calibrations. Interfacing with many popular instruments
such as the DPI 515, DPI 605, DPI 610 and MCX, Intecal-W offers a
complete and quality assured solution to calibration management.
Instruments manufactured by Druck Limited are calibrated against
precision calibration equipment which is traceable to International
Standards.
For non-standard requirements please specify in detail.
Continuing development sometimes necessitates specification
changes without notice
INSTALLATION DRAWINGS - Dimensions in mm
92
92
-0
+1
68
44
24
72
max. 125
96
125
48
AL1
AL2
F1
-0
+1
44
F2
DPI 270/271/272/273
DPI 280/281/282/283/284/285
g GE Druck
Druck Limited
Fir Tree Lane, Groby, Leicester, LE6 0FH, UK
+44 (0)116 2317100 Fax:+44 (0)116 2317103
E-Mail: sales@druck.com www.druck.com
Agent:
10/03