Universal Temperature/Process
Controllers 1⁄8 and 1⁄4 DIN Sizes
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CN8541TC-R1, $314.
CN8500 Series
Starts at
$
314
NEMA 4X (IP65)
Front Panel Standard
Universal Power Supply
User-Selectable
Ramp to Setpoint
Smooth Auto/Manual
Operation
Optional RS232 or
RS485 Communications
Autotuning Heat or Cool
Thermocouple, RTD,
Voltage, or Current Input
Plug-In Outputs Modules
(Field Installable)
Dual Outputs and Alarms
Optional Heater Break
Alarm, Remote Setpoint,
Transducer Power Supply,
and Recorder Output
The CN8500 Series temperature
controller is versatile and
user-friendly. The operator needs to
review only those parameters
relevant to the particular application.
A dual digital display offers optimal
process information at a glance.
The dedicated upper display shows
the process temperature, while the
lower display displays setpoint and
setup parameters. Individual LEDs
CN8561TC-R1, $404.
CN8551TC-R1, $317.
identify the status outputs, alarms,
digital communications, and special
options. The CN8500 Series
features a NEMA 4X front panel and
a universal power supply that
accepts 103 to 253 Vac and
103 to 330 Vdc.
Control algorithms available are P,
PI, PD, PID, and on/off. The
autotune feature automatically sets
proportional band, rate, and reset
before the process reaches
setpoint. These parameters provide
quick stabilization of both the
heating and cooling process without
overshoot, hunting, or cycling. The
standard dual control outputs can
be configured in a variety of control
and alarm applications such as
heat, heat/cool, heat/alarm, cool, or
cool/alarm. The ramp-to-setpoint
feature allows the user to define the
rate of rise to reach the setpoint,
thus minimizing thermal shock to
the load during start-up.
P-57
Specifications
erformance
P
Accuracy: ±0.2% FS, ±1 digit
Setpoint Resolution:
1 count/0.1 count
Repeatability: ±1.0 count
emperature Stability: 5 µV/°C max;
T
3 µV/°C typical
Thermocouple Cold-Junction
Tracking: 0.05°C/°C ambient
Common Mode Rejection: >100 dBA
Series Mode Rejection: >70 dBA
rocess Sampling: 10 Hz (100 ms)
P
Inputs
Thermocouple Lead Resistance:
100 Ω max for rated accuracy
Response Time: 0.1, 1.0 or 10 s
Decimal Position: Selectable
Outputs
Output #1: Reverse acting (heating)
Output #2: Direct acting (cooling)
Mechanical Relay:
Rated 5 A @ 120 Vac,
3 A @ 240 Vac
Current: 4 to 20 mA, 500 Ω max
Voltage: 20 Vdc pulse, 1 kΩ min load
Triac: Solid state relay, 120/240 Vac,
zero voltage switched rated 1 A
continuous, 10 A surge @ 25°C (77°F)
Alarms: Optically isolated triac rated
1 A, 120/240 Vac @ 25°C (77°F)
Control Characteristics
etpoint Limits: Limited to configured
S
range for thermocouple and RTD;
limited to scaled range
Alarms: Adjustable for high/low,
process or deviation
Rate: 0 to 900 s
Reset: 0 to 3600 s
Cycle Time: 0.2 to 120 s
Gain: 0 to 400
Gain Ratio:
0 to 2.0 (in 0.1 increments)
On/Off Deadband: 1 to 100 counts
Spread (Output 2):
0 to 100 counts (above setpoint)
Damping: Adjustable (low, normal
or high)
Ramp to Setpoint: 1 to 100 minutes
Autotune: Operator-initiated from
front panel
Manual Control: Operator-initiated
from front panel
General
Power: 115 to 230 Vac ±10%,
50/60 Hz; 115 to 300 Vdc ±10%
(auto-polarity)
Display: Dual LED, 4-digit process
display, green menu/parameter display;
9.2 mm (0.37") high for
1
⁄8 DIN models; 14 mm (0.55") process
display for
Power Consumption: Less than
6 VA (instrument) @ 120 Vac
1
⁄4 DIN units
Input Types and Ranges
Input
Code Type Range Resolution
-18 to 760°C 1°C
Iron-constantan 0 to 1400°F 1°F
-18 to 1349°C 1°C
0 to 2460°F 1°F
CHROMEGA®-ALOMEGA
®
-129 to 316°C 1°C
TC Copper-constantan -200 to 600°F 1°F
-18 to 1299°C 1°C
0 to 2370°F 1°F
OMEGALLOY
®
-18 to 1299°C 1°C
Pt/13% Rh-Pt 0 to 3200°F 1°F
-18 to 1299°C 1°C
Pt/10% Rh-Pt 0 to 3200°F 1°F
-200 to 850°C 1°C
RTD 3-wire, 100 Ω Pt -328 to 1562°F 1°F
-128.8 to 232.2°C 0.1°C
3-wire, 100 Ω Pt -199.0 to 450.0°F 0.1°F
V5 1 to 5 V Scalable (-1999 to 9999) Selectable
0 to 5 V Scalable (-1999 to 9999) Selectable
V10 2 to 10 V Scalable (-1999 to 9999) Selectable
0 to 10 V Scalable (-1999 to 9999) Selectable
MV 10 to 50 mV Scalable (-1999 to 9999) Selectable
0 to 50 mV Scalable (-1999 to 9999) Selectable
MA 4 to 29 mA Scalable (-1999 to 9999) Selectable
0 to 20 mA Scalable (-1999 to 9999) Selectable
For CN8200,
CN8240 and
CN8260 Series
Controllers
Software Can Support
Up to 254 CN8200,
CN8240 or CN8260
Controllers
Sample of screen displaying status
of multiple controllers.
Sample of screen displaying
controller parameters.
The CN8-SW software is designed
to interface with the CN8200,
CN8240 and CN8260 Series
controllers with optional
communication hardware.
Designed for use on laptops or
PC’s, this development provides
the user with:
• Time saving benefit and
convenience of remotely
configuring and adjusting units.
• Saving and retrieving settings to
and from files.
• Cloning settings to other instruments.
• Highly flexible logging and
“real time” charting capability
for providing hard copy QA
records for ISO-9000 and other
management purposes.
The CN8-SW software is a powerful
process development tool for the
OEM customer or process engineer.
With compatible modems and PC
computers, remote site supervisory
control and data acquisition can
take place to facilitate periodic or
continuous monitoring and
troubleshooting.
Data is stored to file in a tamper
resistant format to ensure the
integrity of reports for quality
monitoring requirements.
Sof
t
w
ar
FREE
e
P
P-58
CN8551RTD-R1, $317.
Extended Warranty
Program
SM
CN8541RTD-R1,
$314.
All models
shown smaller
than actual size.
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
odel No. Price Cutout Description
M
CN8541(*)-(**) $3141⁄8 DIN vertical Single output
CN8542(*)-(**)-(**) 3441⁄8 DIN vertical Dual output
CN8551(*)-(**) 3171⁄8 DIN horizontal Single output
CN8552(*)-(**)-(**) 3471⁄8 DIN horizontal Dual output
N8561(*)-(**) 404
C
CN8562(*)-(**)-(**) 4341⁄4 DIN Dual output
Comes complete with operator’s manual.
Specify input code: “-TC” (thermocouple), “-RTD”, “-MV” (voltage to 50 mV) or
*
“-MA” (current to 20 mA). See Input Table on page P-58 for details.
Specify output code(s) from Output Types table below. Single output units can be ordered
**
for either heat (reverse) or cool (direct) action.
Output Types (No Additional Cost)
1st Output–Heat Only 2nd Output–Cool Only
Output Type (Reverse) Order Suffix (Direct)* Order Suffix
5 A Relay -R1 -R2
1 A SSR -T1 -T2
4 to 20 mA -F1 -F2
20 Vdc Pulse -DC1 -DC2
Single output controllers can be ordered for either heat (reverse) or cool (direct) acting.
*
Ordering Examples: CN8561TC-R2,1⁄4 DIN controller, thermocouple input, 5 A relay,
2nd output configured for cooling operation, $404.
CN8561TC-DC1-AL1-C2-PV4, single-output controller for thermocouple input, 1st output DC pluse
with 1 alarm output, RS232C communications and recorder output, $404 + 25 + 95 + 75 = $599.
OCW-2, 2-year warranty extension $599 + 108 = $707.
1
IN Single output
⁄4 D
CN8561RTD-R1, $404.
Weight (1⁄8 DIN): 0.34 kg (12 oz)
1
Weight (
Panel Cutout (
⁄4 DIN): 0.425 kg (15 oz)
1
⁄8 DIN): 45 x 92 mm
(1.772 x 3.622")
Panel Cutout (
1
⁄4 DIN):
92 mm (3.622") square
Dimensions (
1
⁄8 DIN Horizontal):
53 x 100 mm (2.1 x 3.95");
18.3 mm (0.72") depth
Dimensions (
1
⁄4 DIN):
100 W x 100 H x 18.3 min bezel
(3.95 x 3.95 x 0.72")
Panel Depth: 100 mm (3.937")
Front-Panel Rating:
NEMA 4X (IP65)
Operating Ambient Range:
0 to 55°C (32 to 131°F) @ 90% RH
max, non-condensing
Memory Protection: Solid state
non-volatile memory
Connections: Rear barrier strip with
locking terminals
Contacts: Twin bifurcated
Options*
Ordering Suffix Add’l Price Description
-AL1 $25 Single alarm
-AL2 50 Dual alarms
-C2 95 RS232 communications
-C4 95 RS485 communications
†
†
-XP1 75 Transducer power supply, 15 Vdc
1 alarm option, 1 communications option and the XP1 option can be installed in a unit.
*
† Free CN8-SW software download available at
omega.com/cn8500
Other Options (Only 1 Option Available Per Unit)
Ordering Suffix Add’l Price Description
-PV3 $75 Recorder output, 4 to 20 mA
-PV4 75 Recorder output, 0 to 5 Vdc
-HB1 75 Heater break alarm, 0 to 20 A
-HB2 75 Heater break alarm, 0 to 60 A
-RSP4 75 Remoter setpoint, 0 to 5 Vdc
-RSP5 75 Remote setpoint, 1 to 5 Vdc
-RSP6 75 Remote setpoint, 0 to 20 mA
-RSP7 75 Remote setpoint, 4 to 20 mA
Accessories
Model No. Price Description
CNQUENCHARC $8 Noise suppression RC
snubber (2 leads),
110 to 230 Vac
CN8500-ALI 20 Alarm relay module
CN8500-DC 35 DC pulse output module
CN8500-F 35 4 to 20 mA output module
CN8500-R 35 Relay output module
CN8500-T 35 1 A SSR output module
OMEGACARESMextended
warranty program is
available for models
shown on this page. Ask
your sales representative
for full details when
placing an order.
OMEGACARESMcovers
parts, labor and
equivalent loaners.
P-59
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
EPG05
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0800-099-33-44
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