RD-250 Series
Starts at
$
3296
S-35
See page S-43 for options, accessories
and ordering information.
⻬ J, K, T, E, or R
Thermocouple, RTD, or
Voltage Input
⻬ Up to 12 Channels
⻬ Continuous and
Multipoint Models
⻬ Linearized Temperature
Input Scale
⻬ Rugged Design
⻬ High Accuracy
⻬ Color-Coded Display
Applications
⻬ Laboratories
⻬ Processing Plants
⻬ Industry
⻬ Research Labs
⻬ Aerospace
Precision Electronic
Recorders
The Model RD-250 is available as
either a single-channel continuous
recorder or as a multipoint recorder
in 6 or 12-channel models. A
31⁄2 digit LED display of temperature
is standard on the 12-channel
model. Multipoint models offer a
variable dotting rate as a standard
feature. A three-speed chart drive of
15, 30, 60 mm/hr (1 mm = 0.03937")
is provided on all models with
a momentary fast forward
(60 cm/min) to advance the chart
to the desired time line.
RD-250-12, $3425,
shown smaller than actual size.
S-36
S
See page S-43 for options, accessories
and ordering information.
(
)
Specifications
Measuring System:
Self balancing potentiometer
Recording Mode: 1-channel
continuous, 6 or 12-multipoint
Balancing Speed: Continuous type:
≈ 0.3 sec, multipoint type: ≈ 0.5 sec
Chart Paper: Z-fold, effective width
250 mm (10") x 15 m (49')
Dotting Interval:
6 and 12 multipoint type—5 sec at
60 Hz; 6 sec at 50 Hz; 24-multipoint
type—selectable 1, 2, 5, 10, 30 and
60 sec
Accuracy: Thermocouple or
RTD Input ±0.5% FS, Vdc ±0.25% FS
Deadband: < 0.1% FS
RD-250-12, $3425, shown
smaller than actual size.
Chart Speeds: 15, 30, 60 mm/hr, and
fast, 60 cm/min (1 mm = 0.03937")
Ambient Temperature:
15 to 40°C (59 to 104°F)
Case: Steel plate with diecast
aluminum front door
Illumination: Fluorescent lamp
Power Supply: 120 Vac, 50/60 Hz
Input Impedance: Vdc 4 mV ≤ span
voltage ≤ 500 mV 8 MΩ 800 mV < span
voltage ≤ 100 mV 1 MΩ; thermocouple,
approx 8 MΩ
Dimensions:
260 H x 401 W x 373 mm D
(10.24 x 15.79 x 14.68")
Weight:
1-Pen Model: 16.5 kg (36.3 lb)
Multipoint 6 to 12-Channel: 17.5 kg
(38.5 lb)
Multipoint 12-Channel: 21 kg
(46.2 lb)
Dimensions: mm (in)
260
(10.24)
246
(9.69)
248
(9.76)
401
15.79
350
(13.78)
403
(15.88)
S-37
The 250 mm (10") recording surface
provides the viewer with an easy-toread display, and the steel case with
diecast aluminum door makes the
unit capable of withstanding harsh,
industrial environments.
The chart is illuminated by
fluorescent lamp.
Ordering Examples for Model RD-250
1. RD-250-01-K-0-1000F is the single channel continuous recorder calibrated
for Type K thermocouples with a temperature range of 0 to 1000°F.
Price: $3296
2. RD-250-12-MV-0-100 is the 12-channel multipoint recorder calibrated for 0
to 100 mV recording.
Price: $3817
Ordering
Suffix Price Description
-A $476 High and low
limit alarms
-C 130 12 chart speeds:/
15-30-60 mm/hr,
mm/min, cm/hr,
cm/min
Model No. Price Description
RD-250-CP-(*) $12 Z-fold strip chart paper 250 mm x 15 m
(10" x 49') (package of 1)
RD-250-PEN-RD 25 Cartridge pen, red (box of 5)
RD-250-PEN-GR 25 Cartridge pen, green (box of 5)
RD-250-PEN-BL 25 Cartridge pen, blue (box of 5)
RD-250-PEN-BR 25 Cartridge pen, brown (box of 5)
RD-250-PEN-BK 25 Cartridge pen, black (box of 5)
RD-250-PAD-24 44 24-channel ink pad wheel (box of 1)
180A-PAD-06 16 24-channel ink pad, 6-channel
180A-PAD-12 16 24-channel ink pad, 12-channel
180A-INK-06 17 Ink, 6-channel box of 6 colors
180A-INK-12 34 Ink, 12-channel box of 12 colors
Options
Accessories
*Insert Range Codes
RD-250-12, $3425,
shown smaller than actual size.
S-38
S
To Order
(Specify Model Number)
Model No. Price Description
RD-250-01* $2904 1-channel
RD-250-06* 3157 6-channel multipoint
RD-250-12* 3425 12-channel multipoint
*
Requires 1 input module per recorder from input module table.
To order recorder with module installed, include input module type
and range as suffix in recorder part number.
For 230 Vac power, add suffix
“-230V” to model number;
no additional charge.
OMEGACARESMextended warranty program is available for models
shown on this page. OMEGACARESMcovers parts, labor, and
equivalent loaners. Ask your sales representative for full details when
placing an order.
Ordering Example: RD-250-06-K-0-1000F, 6-channel multipoint
recorder with input range module for K thermocouple 0 to 1000°F
($3157 + 392) and RD-250-CP-0-1000, extra chart paper
($12) = $3561.
OCW-3, OMEGACARESMextends standard 1-year warranty to a total
of 4 years ($350), $3549 + 350 = $3899.
Model No. Price Description
RD-250-K-0-1000F $392 0 to 1000°F
RD-250-K-0-1600F 392 0 to 1600°F
RD-250-K-0-2400F 392 0 to 2400°F
RD-250-K-0-800C 392 0 to 800°C
RD-250-K-0-1000C 392 0 to 1000°C
RD-250-J-0-500F 392 0 to 500°F
RD-250-J-0-800F 392 0 to 800°F
RD-250-J-0-400C 392 0 to 400°C
RD-250-T--100-400F 392 -100 to 400°F
RD-250-T-0-200C 392 0 to 200°C
RD-250-E-0-1000F 392 0 to 1000°F
RD-250-E-0-500C 392 0 to 500°C
RD-250-R-0-1600C 392 0 to 1600°C
RD-250-RTD-0-200C 450 0 to 200°C
RD-250-MV-0-100 392 0 to 100 mV
Note: Input modules include chart scale and package of paper.
Modules may be ordered separately, but are typically included as
suffix to recorder part number to have unit shipped complete.
Other ranges available. Consult Sales Department.
Input Modules (One Required Per Recorder)
Includes
⻬ Paper
⻬ Complete Manual
⻬ Pen (for Continuous Model)
or Pad (For Multipoint Model)
MOST POPULAR MODELS HIGHLIGHTED!
RD-250-12, $3425,
shown smaller than actual size.
Model No. Price Description
PE-1007 110 Reference Book: Digital Control
System Analysis and Design
Accessories
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