Omega Products DR231-00-1 User Manual

Input Hybrid Recorders

10, 20 or 30

DR231 and DR241 Series

Starts at

$

4935

*Optional

⻬ High-Speed Scanning

and Recording on
250 mm (10") Chart

⻬ 10-Color Recording
⻬ Thermocouple,

RTD, Voltage Inputs

⻬ Optional Floppy Drive

for Data Storage

⻬ Easy-to-Carry,

Lightweight Design

⻬ Benchtop in DR231
⻬ Panel Mount in DR241

* See page S-44 to order.

DR231-12-1, $5555.

The OMEGA®DR231 and DR241
portable hybrid recorders offer
high-speed scanning of up to
30 channels in 2 seconds. They
have a wide variety of recording
functions including analog trend in
10 colors on an effective width of
250 mm. Digital measured values,
various messages, zone recording,
and partially compressed and
expanded recording are
documented to support clear
interpretation of data. The DR231
and DR241 Series incorporate a
large 3-line vacuum fluorescent
display which can be used as a
process monitor, enabling you
to readily view data or check
alarm status, even from a remote
location. The units are also
interactively configured using
the easily read display.

S-41

Specifications

Number of Inputs:

Up to 10, 20 or 30 points

A/D Resolution: ±20,000
Reference Junction Compensation

Error: ±1°C/1.8°F (R, S, B, C, W),

±0.5°C/0.9°F (K, J, T, E, N, U, L,
CHROMEGA

Scan Cycle Time: 2 to 60 sec
selectable (2, 3, 4, 5, 6, 10, 12, 15,
20, 30, 60 sec)
A/D Integration Time: 20 msec
(50 Hz), 16.7 msec (60 Hz), and
100 msec (10 Hz) (50/60 Hz) selectable

Input Impedance: >10 MΩ on 2V
or lower ranges and T/C; approx
1 mΩ on 6V or higher ranges

Input Bias Current: <10 nA
Thermocouple Burnout Protection:

ON or OFF selectable for each channel

Temperature Coefficient:

Zero Drift: 0.01% of range/°C,
Full Span: 0.01% of range/°C

Max Input Voltage: ±10 Vdc
(50V on 6V or greater ranges)

®

vs. Au7% Fe)

DR241-12-1, $5575, shown

Extended Warranty

Program

SM

smaller than actual size.

Common Mode Voltage:

250 Vrms AC (50 or 60 Hz)

Common Mode Rejection:

120 dB (50 or 60 Hz ±0.1%)

Normal Mode Rejection:

40 dB (50 or 60 Hz ±0.1%)
Max between Chan: 150 Vrms ac,

(50 or 60 Hz except RTD)

Printout

Printing Technique: Raster scan using

a wire-dot printer and 10-color ribbon

Recording Colors
Analog Trend Mode:

Trend Recording: Purple, red, green,

blue, brown, black, navy blue,
yellowish green, red-purple, orange
(can be specified for each channel)

Digital printout: Black
Alarm printout: Red (alarm

release mark is blue)

Logging Mode: Purple
Effective Recording Span:

250 mm (9.9") for trend
Chart: Z-fold chart, 342.5 mm W x

30 m L (13.5 x 98')

Recording Resolution: ±0.1 mm
Recording Accuracy: Measurement

accuracy plus (±0.1% of effective
recording span)

Printout Format: Analog trend/analog
trend plus digital datalogging

Chart Speed: 1 to 1500 mm/hr
Chart Drive: Pulse motor drive

Chart Speed Accuracy: ±0.1%
Recording Modes: Normal, print on

alarm, chart speed/interval changes set
by event/action function

Standard Printing Functions:

engineering units (up to 6
alphanumerics), tag number (up to
7 alphanumerics), alarms (channel
number, alarm types, and the time of
alarm On/Off), scale markings (0/100%,
0/50/100%, or 20% steps), program list,
manual, message (max 16 characters),
and header (60 characters x 5 lines)

Recording Interval for Digital Printout
and Chart Speed:

When the recording interval is
SINGLE: [Chart speed (mm/hour)] x

trend recording interval must not
exceed 3000)

When the recording interval is
MULTIPLE: Set by timerManual

Printout: One scan’s

worth of data can be digitally
printed by a key operation or
event/action function

No. of Digital Print Rows

Chart Speed 1 Row 2 Row 3 Row 4 Row

10 to 24 mm/h 12 643

25 to 49 mm/h 4221

50 to 99 mm/h 2111

100 to 1500 mm/h 1111

S-42

Zone Recording: Recording width and

recording positions (0% and 100%
positions) can be set in mm units for
each channel in case of trend recording

Display and Controls

Display: 5 x 7 dot matrix, 3 row,

vacuum fluorescent; 1st row 22 large,
2 and 3rd, 40 small characters

Data Display: Measured data
(tag number, channel number,
alarm status, measured value,
engineering unit), bar graph, clock,
alarm status, relay status,
programming data, battery status, and
recording format (trend/log)

Scaling Range: -30,000 to 30,000
Calculation: Difference between

any channels or moving average
for every 2 to 64 scans

Internal Memory: 10-yr lithium battery
back up; 512 KB SRAM with floppy
disc drive option

Optional Memory: 3.5" floppy drive;

1.4 MB or 720 K

OMEGACARESMextended warranty program

is available for models shown on this page.

Ask your sales respresentative for full details

when placing an order. OMEGACARE

covers parts, labor and equivalent loaners.

SM

S

Equation to Calculate Total
Data Capacity: 256 + 64 x (number of

measured ch + number of computation
ch) + (number of measured ch x 2 +
number of computation ch x 4 + 6) x
specified data length

Alarms: Up to 4-channel
Outputs: 12 max with -A4 and -R1 opt
Alarm Types: High (H), low (L),

high rate of change (RH), low rate of
change (RL), delta high (∆H) and delta

ow (∆L)

l

Recording:

rend Mode: CH, number alarm

T

types, and on/off times in the
right margin
Logging Mode: CH, number
and alarm types at the start of
measured data

Alarm Acknowledgement: Pressing
the ACK key stops the alarm display
flashing and resets the dedicated
common relay output

Alarm Reset: Hold type relay
output by pressing the RESET key

Display: Flashing display
can be obtained for alarm status

General

Ambient Operating Temperature:

5 to 40°C (41 to 104°F)

Humidity Range: 20 to 80%
Power Supply: 90 to 250 Vac,

50 or 60 Hz ±2%

Power Consumption:

Approx 130 VA

Clock: With calendar function
Input Terminals:

DR231: Clamped input terminal block
DR241: Screw input terminal block

Mounting: Desktop or flush panel

mounting; can be inclined up to
30° backward from vertical

Materials: Steel plate, aluminum plate,
plastic moldings

Color:

Display: Light slate gray
DR231 Main Unit: Ice white
DR241 Main Unit: Lamp black

External Dimensions:

DR231:

Approx 291 H x 438 W x 336 mm D
(11.5 x 17.25 x 13.25")

DR241:

Approx 288 H x 444 W x 343 mm D
(11.35 x 17.5 x 13.5")

Cut Out Dimensions (DR241):

281 H x 425 mm W (11 x 16.7")

Weight:

DR231: Approx 13 kg (28.66 lb)
DR241: Approx 16 kg (35.30 lb)

Optional Features

Alarm Outputs (-A4 Option):

10-points, contact rating 30 Vdc
or 250 Vac, 2 A resistive; AND,
OR, REFLASH, or latching option
type output

Computation (-M1 Option): Functions:
+, -, x, =, SQR (square root), ABS
(absolute value), LOG (common
logarithm), EXP (exponential), logic
(AND, OR, NOT, XOR), CLOG & TLOG
(group or channel; max, min, avg, totals,
max minus min)

Remote Control (-R1 Option): Through
the contact input, start/stop, chart
speed/interval change, manual printout,
message recording, digital recording in
the trend mode, writing on the memory
card, and loading trigger available; input
signal; TTL-level, open collector, and
contact status, plus 2 alarm outputs

GPIB Interface (-C1 Option): Conforms
to IEEE standard 488-1978

RS-232C Interface (-C2 Option):

Conforms to EIA RS232C
up to 19.2 K baud

Software: The software package runs
under the Windows 95, Windows 98,
or Windows NT 4.0 operating systems;
it realizes highly dependable data
acquisition with high operability using a
DR130, DR230, or DR240; its extensive
graphical tools allow you to easily
perform hardware setup, diagnostics,
measurement condition setup, data
acquisition, historical data display and
analysis, data conversation, and more;
the DR130, DR230, or DR240 units
include software only when a floppy
drive is installed in the unit

Software configuration:

• Datalogging software

• Data viewer software

• System setup, diagnostics

• Calibration software

• Parameter setting software

Datalogging Software: The
datalogging software displays the
measured values as a trend graph in
real-time and saves them to hard disk at
the same time

DR231-12-1,
$5555, shown
smaller than
actual size.

Sample Rate Logging Interval: The

scan interval can be selected from 0.5,
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
seconds and multiplied by an integer
of 1 to 128

Display Functions

Display formats: Analog trend

waveform display, digital display

Number of Channels Displayed:

10 channels in analog waveform
display; 10 channels in digital display

Number of Pages: Switches between
2 groups of channels

Time Axis Zoom-In: Can be changed
during real-time trending (the zoom-in
range depends on the window size)

Playback Function: The real-time trend
display can be paused and can display
past data of up to 1800 points

Window Functions: The window
can be resized; 2 groups can be
displayed at the analog trend waveform
display of 10-channels and digital value
display of 10-channels

Data Viewer Software
Historical Data Display

Display Formats: Analog trend

waveform display, digital value display

Number of Channels Displayed:

10-channels in analog waveform
display; 10-channels in digital display

Number of Pages: As required for the
two groups of channels

Time Axis Zoom-In: The time axis can
be magnified, reduced, and scrolled

Data File Display: Multiple files
can be opened at the same time

S-43

Ranges

Measurement

Input Type

nd Range Accuracy Resolution

a

±20.000 mVdc ±(0.05% of rdg + 5 digits) 1 µV
±60.00 and ±200.00 mVdc ±(0.05% of rdg + 2 digits) 10 µV
±2.0000 Vdc ±(0.05% of rdg +2 digits) 100 µV
±6.000 and ±20.000 Vdc ±(0.05% of rdg +2 digits) 1 mV
±50.00 Vdc ±(0.05% of rdg +2 digits) 10 mV

R 0 to 1760°C ±(0.05% of rdg + 1°C)
S 0 to 1760°C
B 0 to 1820°C However; R, S: 0 to 100°C ±3.7°C

K -200 to 1370°C however; -200 to -100°C

E -200 to 800°C
J -200 to 1100°C 0.1°C
T -200 to 400°C ± (0.05% of rdg + 0.5°C)

J DIN (L) -200 to 900°C However; J, L DIN: -200 to -100°C
T DIN (U) -200 to 400°C ±(0.05% of rdg + 0.7°C)

Kp vs Au7Fe 0 to 300°K ±(0.05% of rdg + 0.7K) 0.1K
N 0 to 1300°C ±(0.05% of rdg + 0.7°C)
C (W) 0 to 2315°C ±(0.05% of rdg + 1°C) 0.1°C
PT100 -200 to 600°C ±(0.05% of rdg + 0.3°C) 0.1°C
PT100 -140 to 150°C ±(0.05% of rdg + 0.3°C) 0.01°C
Ni100/120 -60 to 180°C ±(0.05% of rdg + 0.3°C) 0.1°C
Cu10 Ω -200 to 300°C ±(0.2% of rdg + 0.7°C) 0.1°C

00 to 300°C ± 1.5°C 0.1°C

1

and B : 400 to 600°C ± 2°C

± (0.05% of rdg + 0.7°C)

± (0.05% of rdg + 1°C)

(Digital Display and Printout)

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Model Number Price Description

DR231-00-1 $4935 10-channel hybrid recorder, benchtop
DR231-12-1 5555 10-channel hybrid recorder, benchtop with floppy drive
DR241-00-1 4955 10-channel hybrid recorder, panel mount, internal illumination
DR241-12-1 5575 10-channel hybrid recorder, panel mount, with floppy drive, internal illumination

Recorder comes complete with print ribbon, one package of chart paper and operator’s manual.
For 20-channel and change “-1” to “-2”, add $425.

For 30-channel and change “-1” to “-3”, add $850.
Each recorder comes complete with one Z fold chart,

10-color ribbon and operator’s manual.
For CE option, add “-CE” suffix and add $375 to price.
Ordering Example: DR241-12-2-A4-CE, panel mount recorder with floppy drive,

20-channels, alarm relays, and CE, $5575 + 425 + 775 + 375 = $7150.
OCW-3, OMEGACARESMextends standard 2-year warranty to a total of 5 years

($350), $7150 + 350 = $7500.

Options

Ordering Suffix Price Description

-A4 $775 10-alarm relays

-M1 775 Math function

-C1 775 GPIB communications

-C2 775 RS232 communications

-R1 775 Remote control

-CE 375 CE Approval

Accessories

Ordering Suffix Price Description
DR200-ZFP-10 $177 Z-fold chart paper, 10-pack, 30 m (98')
DR200-RC 29 10-color print ribbon

DR241-12-1, $5575, shown

smaller than actual size.

S

S-44

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

EPG05

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