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DR230 / DR240 expandable model
Connecting the main unit to each subunit with dedicated
cables, you can easily configure a multi-channel hybrid recorder.
Input channels:
The number of input channels can be increased
from 10 to 300 channels in steps of 10 channels.
Measurement
interval:
500 ms maximum
lInputs: Universal (DCV, TC, RTD, DI), DCV/TC/DI dedicated,
power monitor, pulse, strain and direct current (mA)
modules
Up to six subunits
can be connected to a main unit.
Up to six input and/or output modules can be connected
to one subunit.
Subunits can be
separated from the main unit by up to
500 m total cable length.
Memory devices
(specified when ordering): 3.5" floppy disk
drive (FDD)
Computing functions
The main unit of the DR230 / DR240 with optional
MATH feature can perform the four
arithmetic operations, integration of
measured data, and computations such
as detection of maximum and minimum
values, in realtime. Even without the
optional feature, the DR230 / DR240 can compute
linear scaling, difference and moving
average. The results of such computations
are transferred with the measured
data to a PC, thus reducing system
requirements on the PC and also
resulting in more efficient analytical processing.
The main computing functions are as
follows. (The shortest computation period
differs depending on the kind of computation.)
Standard computing functions
Linear scaling, moving average, differential
calculation, pulse integration
(when a pulse input module is recognized)
Optional functions
The four arithmetic operations, logic
operations, related operations, calculation
of absolute and relative values, and
statistical calculations (maximum, minimum,
mean, and integrated values for
fixed intervals)
Report function (/M3)
You can calculate the maximum, minimum,
average values, and integrated
value of the measured results, and print
hourly, daily and monthly reports. The
calculated values are also recorded in
the report results.
Memory function
You can select a floppy disk function
with 512 kB SRAM capability for storage
of information on a removable media.
You can save several configuration
setups and in addition store the
measured data before and after an
alarm, and also calculated values.
You can record the memorized data on
DR230 / DR240 chart, transfer it off-line to a PC,
or analyze it or make it into a report using
commercially available spreadsheet
software.
You can save the measured data in
the following cases:
- By manual command or when a communications
command is input
- When an alarm is detected
- When the end of the chart is reached
The save modes are as follows:
- Single: Data of the specified length is
sampled once only.
- Repeat: Data of the specified length
is sampled exactly the number of
times specified in advance.
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- High Speed Recording at a 2-second Interval
- Programable Ten-Color Recording
- Versatile Recording Formats
- Simple integrated construction
You can connect 10, 20 or 30 channels directly to the main unit. The DR240 stand-alone model, which comes with I/O modules already installed, is a high cost performance general-purpose model. The external appearance, recorder function, memory and communications functions of this model are identical to those of the expandable model. Because this model is of integrated construction, it can be carried about easily.
- Universal and power monitor range
Universal input type permit measurement of a variety of inputs including DC voltage, thermocouple, RTD and contact signals. Low cost type intended specifically for measuring voltage and thermocouple signals are available. You can also select power monitor (optional) for measuring AC voltage and current.
- A variety of options, including general-purpose communications and DI/DO functions are available
General-purpose communications (GP-IB, RS-232C, RS-422A/485 and Ethernet), 10 form C alarm output relays, DI/DO (2 alarm relays, remote control of recorder, CPU fail and chart end contacts). Specify your required options when ordering.
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The DR240 hybrid multipoint recorder represents the next evolution of Yokogawa's successful HR2400 and HR2500E 10-inch recorders, using miniaturization to reduce the instrument's depth in half while increasing input capacity to as much as 300 points and 60 calculated channels.
This sophisticated hybrid recorder features the planar transformer and miniaturized solid state relays for reliable data collection, recording and display in a compact package.
The unit accepts universal inputs and offers an RS422 communication feature for multidrop networking of similar models for large installations.
The DR240 offers optional floating point mathematical computation capability with a 36-character formula per channel and 102-character vacuum fluorescent display. It is also available with a built-in 3.5-inch PC disk drive to store collected data, save setups, or to download programs into the recorder.
The DR240 is ideal for continuous emissions monitoring and generator temperature monitoring among other environmental and process applications. |
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- High speed, accurate measurement:
The DR230 / DR240 expandable model has a
scanning speed of 500 ms/300 channels,
while the stand-alone model scans up
to 30 channels in 2 seconds.
- Cost-effective
The depth and weight of the DR230 / DR240 are
significantly less than conventional multipoint
strip chart recorders, thus reducing
total
control panel volume.
A DR230 / DR240 configuration can also greatly
reduce the amount of wiring needed,
particularly for remote measurements,
providing a favorable cost/performance
ratio.
- High expandability:
The DR230 / DR240 can be flexibly configured
and expanded to meet a wide range of
recording, small-scale data logging and
multi-point data acquisition needs.
The recorder accepts a large variety of
inputs including: voltage, temperature
(thermocouple, RTD), contact, power
monitor, pulse, strain and DCA signals.
- High reliability and environmental
durability:
The DR230 / DR240 recorder provides high reliability
and performance over a wide
range of environmental conditions.
- Support for efficient data:
processing
You can configure your personal computer
based data acquisition environment
with ease.
- Expandable models
The DR230 / DR240 expandable model enables
you to start with a small number
of channels, and conveniently
expand, up to 300 channels. The
architecture of the DR230 allows
you to increase the number of input
and/or output modules as your application
needs change.
The versatility of the DR230 recorder
enables you to freely configure a
recording/data acquisition environment
that matches your particular
application, while effectively reducing
your initial investment.
- Available Modules
- DCV/TC/DI Input Modules
- DC Current Input Modules
- Power Monitor Modules
- Strain Measurement Modules
- Pulse Measurement Modules
- Digital Input Modules
- Alarm Contact Output Modules
- DI/DO Modules
- Communications Modules
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| Function |
Description |
| input |
Integration
mode selection |
You can select the 50/60 Hz or 10 Hz integration mode. The 10 Hz integration mode is useful when power line noise containing both 50 Hz and 60 Hz components is superimposed on the signal. (When
the 10 Hz integration mode is activated, the minimum measurement interval is 4 seconds.) |
| Low-pass filter |
You can insert a low-pass filter in the path of a signal on which noise components are superimposed. (When the filter
is ON, the minimum measurement period becomes more than 3 seconds, depending on the input types and channels.) |
| Scaling |
The input signal is displayed and/or recorded as an industrial quantity or a physical quantity. |
| Burn-out |
When the thermocouple input goes open circuit, the indicator moves to the 100% or 0% side. |
| Differential computation |
The difference between the reference channel and measured channel is measured. |
| Record |
Zone recording |
The recording area can be set freely for each channel. |
Partially
compressed
recording |
Unimportant parts are compressed, and only necessary parts are expanded, thus enabling the recording resolution to be increased. |
Group
channel trend |
Only channels that belong to a specified group are recorded. Switchover between groups can be done using a remote contact. |
Alarm generation
channel trend |
Trend recording takes place only for channels that emit an alarm. |
| Setting |
Memory backup |
The set data is protected by a lithium battery inside the unit. |
| Security |
The unit comes with a standard password lock function, preventing mis-operation and also protecting the set data. |
Alarm
|
Setting |
You can set a 4-level alarm (upper and lower limits, difference between upper and lower limits,
percentage change rising and falling limits) for each channel. |
Re-breakdown
re-alarm |
The alarm output can be refreshed when an alarm is emitted. |
| Hold function |
Once an alarm is emitted, the alarm indication and relay state are held until the operator acknowledges the alarm |
| Option functions |
General purpose communication function (GP-IB, RS-232C) and alarm output relay (10 make contacts)
DI/DO functions (recorder action control function, fail function, chart end function), etc. |
Conformity to
standards |
CSA |
Obtained CSA22.2 No.1010.1,
Installation category (Overvoltage category) : II, Degree of pollution : 2 |
| UL |
Obtained UL3111-1 (CSA NRTL/C) |
| CE |
EN61326
EN61000-3-2
EN61000-3-3
EN55011 Class A Group 1
EN61010-1
Measurement category : II, Degree of pollution : 2 |
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- External Dimensions; Weight (with I/O module installed)
DR241: approx 444 (W)´288 (H)´343 (D) mm; approx. 16 kg
DR242: approx 444 (W)´288 (H)´308 (D) mm; approx 12 kg
DS400: approx 336 (W)´165 (H)´100 (D) mm; approx 2.5 kg
DS600: approx 422 (W)´176 (H)´100 (D) mm; approx 3.5 kg
- AC Power Supply
Rated supply voltage: 100 to 240 VAC
Usable supply voltage: 90 to 250 VAC
Rated supply frequency: 50/60 Hz
- DC power supply
(Runs on a DC power supply only. Specify when ordering.)
Rated supply voltage: 12 to 28 VDC
Usable supply voltage: 10 to 32 VDC
Terminal: Screw terminals
- Insulation Resistance
At least 20 MW at 500 VDC between the power supply and ground, between each
terminal and the ground, and between input terminals
- Withstanding Voltage
Between power supply terminal and ground: 1,500 VAC (50/60 Hz, 1 min.)
Between input/output terminal and ground: 1,500 VAC (50/60 Hz, 1 min.)
- Normal Operating Conditions
- Supply frequency: 50 Hz ±2% or 60 Hz ±2%
Ambient temperature: DR241, DR242 0 to 50°C (FD operation 5 to 40°C)
DS400, DS600 Panel mount –10 to 60°C
Desk-top –10 to 50°C
Ambient humidity: 20 to 80% RH (between -10 and 40°C)
- System Configuration
- Configuration Method
- DR241: Configure a system with this model by specifying
necessary options, such as the input and
communications functions, according to the model
code when ordering.
- DR242: Configure a system with this model by combining one or
more of the modules and subunits listed below.
Connecting Modules and Subunits (DR242)
- Standard Modules and Software for System Configuration
The following modules and software can be installed in a main unit and subunit to
configure a data acquisition system:
- Input Modules: Universal (DCV, TC, RTD and DI), DCV/TC/DI
dedicated, power monitor, strain, pulse, direct current
(mA) and digital input modules
Connectable to DS400 and DS600
- Communications Modules: Eternet, GP-IB, RS-232C and RS-422A/485
Connectable to DR242 main unit
Alarm Contact Output Modules: 4 contacts (SPDT: NO-C-NC) and 10 contacts (make
contact: NO-C).
Connectable to DR242 main unit or DS400 and DS600
- DI/DO Modules: Two alarm output contacts (NO-C-NC) and fail output
Connectable to DR242 main unit or DS400 and DS600
Up to 1 module/1 system can be connected.
- Extension Modules: Interfaces for remote power supply
One extension module can be connected to each
DS400 and DS600.
(should be used with extension base units)
- Software: DAQ32 (Stardard software)
DAQ32 plus (Optional software)
- Connection of Subunits
DR241: Cannot be connected.
DR242: Up to 6 subunits can be connected. One subunit can
be installed on the rear panel by screws.
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