CX224
PDS CX224
CX224
12-Channel
Temperature
Monitor
• Prevent Costly Damage to
Motors, Generators, Transformers and Other Equipment
• Monitor Up to 12 Inputs
• Variety of Inputs: RTD,
Thermocouple, 4 to 20 mA,
in any Combination
• Program Via Front Panel &
RS485 or RS232 (Modbus
Protocol)
• Power Loss Protection
• 24 Independent Trip Points
(2 Per Channel)
• 5 Outputs (Relays or Logic)
• Logic Outputs can be Used
With External SSRs
• Programmable Deadband
(Hysteresis)
Description
Software
The CX224 consists of a 12-Channel
Temperature Monitor and ChromaSoft™
CX224 Software. It is the next generation in temperature monitoring equipment from Chromalox designed to
meet the needs of electric machinery
protection. The 12-channel scanning
capability, standard RS485/RS232 interface and Windows-compatible software
utility for system configuration and data
logging provide overtemperature and
undertemperature protection and critical feedback to safeguard expensive
machinery.
CX224 Software Features:
• Compatibility with Microsoft® Windows® operating system
• User-friendly configuration program
• Save unlimited set-up configurations
• Commission mode to test configurations before implementation
• Continuously displayed measurement
and relay status of all 12 channels
• Data logging
• Data graphing for trend analysis
• Rugged Steel Enclosure
Custom Options
• Can be Used as a 4-Channel
On/Off Controller
• Difference between two channels
• Average reading of several channels
• Display High, Low, or Any
Valid Zones
• Other input types
• Self Calibrating
• Password Protected Areas
Allow Supervisory Control and
Monitoring of Trip Points
IS 9001
A P P R O V E D
•
C E R T.
N O .
A 3 1 6 4
Phone: 1-888-996-9258
Fax: 615-793-3563
www.chromalox.com
©2007 Chromalox, Inc.
CX224 12-Channel Temperature Monitor
Specifications
Input: 1 to 12 RTDs (2 or 3-wire), thermocouples, or 4 to 20 mA
current loops. Accepts any combination of input types.
Display:
20 × 4 line backlit LCD. 0.1°C or 0.1°F resolution.
Front panel LEDs indicate relay and alarm status
Standard Input Types:
RTD:
-200 to 700°C: PA (Platinum/100 Ω/0.00392 Ω/Ω/°C)
-200 to 700°C: PB (Platinum/100 Ω/0.00391 Ω/Ω/°C)
-200 to 850°C: PD/PE (Platinum/100 Ω/0.00385 Ω/Ω/°C)
-200 to 600°C: PF (Platinum/1000 Ω/0.00385 Ω/Ω/°C)
-80 to 260°C: NA (Nickel/120 Ω/0.00672 Ω/Ω/°C)
-100 to 260°C: CA (Copper/10 Ω/0.00427 Ω/Ω/°C)
Thermocouple (grounded models require TI241):
-270 to 1000°C: Type E
-200 to 1200°C: Type J
-270 to 1150°C: Type K
-270 to 400°C: Type T
4 to 20 mA current loop: Pressure (PSI, Bar), Humidity (%),
Temperature (°F, °C), Vibration (G), and process variable
(mA, VDC)
Note: 4 to 20 mA inputs must be linear with respect to the
measured variable.
Accuracy:
2°C (3°F) in 0 to 60°C (32 to 158°F)
ambient, over entire range of the input
Input Scan Rate: 1.5 seconds maximum.
Firmware Fault Protection:
Watchdog resets microprocessor if it fails to
perform program sequence
Input Fault Detection:
Options for ignoring, sounding alarm, or tripping relays associated with the failed sensor.
Other zones are unaffected.
Output:
Relays:
24 independent trip points (2 per channel):
5 relays, one relay is intended for use as an
alarm function (but can be configured as a trip
point), and one internal audible alarm. Alarm
may be programmed to sound when selected
relays trip. Logic output option is available for
controlling external SSRs or sending a signal
to another device.
Form C, SPDT 10 A @ 250 VAC/24 VDC resistive load; 10 A make current; 2500 VA breaking capacity, ¼ HP at 120 VAC motor load.
Supply Power: 85 to 240 VAC @ 50/60 Hz. or 110 to 370 VDC,
5 watts max.; or 18 to 36 VDC, 6 watts max.
Power Loss Protection:
Trip points and program parameters stored
in non-volatile memory. Normal operation
resumes when power is restored.
Keyboard:
4 membrane type keys with audible feedback.
Serial Interface:
RS485 or RS232 (Modbus protocol).
Programming: Programmable from front panel or via RS485
or RS232 interface using Modbus protocol.
PC software is included for data logging,
commissioning, and configuration. Program
settings may be password protected
Enclosure:
Steel case; NEMA 4 front panel
Ambient Temperature Rating:
0 to 60°C (32 to 158°F)
Connections: Terminal blocks at rear accept wires to AWG 12
Leadwire Resistance Compensation:
Up to 30 Ω per leadwire for RTDs, with no
effect on reading
Dimensions: 7.5 × 11.5 × 2” (191 × 292 × 51 mm)
Mounting:
Panel mount enclosure.
Cutout size of 6.8 × 10.6” (173 × 269 mm)
Weight:
3.8 lbs. (1.72 kg.)
Trip point Hysteresis (deadband):
Programmable from 0 to 20 (°C or °F).
Agency Approvals:
UL: 508
Ordering Information
Accessories
CX224 12-Temperature Monitor
Code Power supply
A
85-240 VAC @ 50/60 Hz / 110-370 VDC
B
18-36 VDC
Code Output
1
Relays
2
Logic (5 VDC)
Code Interface
A
RS232
B
RS485
AC102734: Communication package. Includes isolated
RS232 to RS485 converter, power supply for
converter, 6’ (1.8 m) serial cable, and DB25 to
DB9 adapter
CX224 - A
1
A
8-channel thermocouple isolator. Electrically
isolates grounded thermocouples for use with
CX224
Typical Model Number
The CX224 monitor comes complete with CX224 software.
2
TI241:
PDS CX224
April 2007
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • www.chromalox.com
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