Portable Temperature Calibrators CL550 Series
Discontinued
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Portable Temperature Calibrators
Discontinued
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NIST Traceable Standard
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Compact, Rugged and Easy To Use Multihole Dry Block Calibrators
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UBuilt-In Reference Pt100 with 0.01°C Resolution Indicator (CL550 & CL551)
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Temperature Sensors for Field and Laboratory Inspection and Calibration
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Microprocessor Temperature Controller
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Auxiliary Inputs for External Pt100 and Thermostat Switch-Test
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Internal Fan for Rapid Cool-Down
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Ranges:
•CL550: from -20 to 125°C
•CL551: from T amb to 550°C
•CL552: from 200 to 1100°C
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Optional Windows 95 Calibration Procedure Manager Package for PC to Document Sensor Certification Activity
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This series is no longer available. Please review the CL355A , or the CL750A as potential substitutes, or contact our Pressure Engineering Department.
General features
Controlling temperature parameters
is the most important factor in
assuring the quality, operational
safety and reliability of industrial
processes. Thermocouples,
resistance thermometers and other
temperature sensors, when installed
in industrial processes, are subjected
to mechanical, thermal and chemical
stresses which accelerate their aging
and eventual breakdown. Therefore,
it is a recommended procedure to
inspect, check and calibrate each
sensor during the commissioning
phase and at regularly scheduled
intervals.
The CL550, CL551 and CL552
series temperature calibrators are
transportable units designed to
provide a controlled temperature
with high stability and high
uniformity in all calibrator ranges.
All units in this series come
equipped with a permanent six
hole block. Please see
specifications for further details.
Internal Metal Block
Temperature Stability
A built in microprocessor-based
controller handles the man-machine
interface, the internal logic, and
assures the high stability of the
internal metal block through a
sophisticated temperature algorithm.
External Digital Indicator
When better accuracy is required,
the CL550 or CL551 temperature
calibrator can be combined with an
external high accuracy indicator
(such as a CL526) and a Working
Standard Thermometer.
Software and Digital
Interface (Optional)
The CL550, CL551 and CL552
series temperature calibrators are
equipped with a full bi-directional
RS-232 digital interface for
communication with personal
computers.
The temperature calibrator can
be part of an automatic calibration
system with a programmable cycle
and the acquisition of data required
to generate a full Calibration Report.
OMEGA® engineers are ready to
support you with the system and
software to fulfill your application
requirements.
A Complete Automatic
Calibration System
The CL550 and CL551 series can be
used together with a Personal
Computer, a multifunction high precision
calibrator (such as the CL520 series)
and a Calpman Windows software
package to improve a true automatic
temperature calibration system.
Using the RS-232 interfaces of the
instruments, it is possible to program
through the PC the complete test
procedure for your thermocouple or
resistance thermometer to be
certificated. The CL520 series
calibrators are able to read the testing
thermo-element with the desired
accuracy, and the software calculates
the errors and prepares the certificate.
| Specifications | CL550 | CL551 | CL552 |
| Range | -20 to 125°C (-4 to 257°F)1 | T amb to 550°C (1022°F) | 200 to 1100°C (392 to 2012° |
| Stability | ±0.03°C | ±0.05°C @ 450°C | ±0.3°C at 1000°C |
| Reading Accuracy | ±0.15°C @ 100°C | ±0.3°C @ 450°C | ±(0.2% fs + 1 digit) |
| Uniformity: Radial | ±0.1°C @ 100°C | ±0.2°C @450°C | ±0.2°C @ 800 °C |
| Axial | ±0.2°C @ 80 mm | ±0.8°C @ 80 mm | ±0.3°C @ 100 mm |
| Heating Rate | 15°C/minute | 20°C/minute | 17°C/minute |
| Cooling Rate | 12°C/minute | 10-25°C/minute | 6°C/minute |
| Stabilizing Time | 6 min. | 10 min. | 20 min |
Standard Block
Immersion Depth
No. of Holes | Aluminum
5.3"
6 | Aluminum
7.3"
6 | Inconel 600
7.3"
6 |
| Diameter(s) | 1/8", 3/16", 1/4", 5/16", 3/8", 3/4" | 1/8", 3/16", 1/4", 5/16", 3/8", 3/4" | 1/8", 3/16", 1/4", 5/16", 3/8", 3/4" |
| Regulating System | PID microprocessor | PID microprocessor | PID microprocessor |
| Reference Sensor | Pt100 - Class A | Pt100 - Class A | Thermocouple type N |
| Auxiliary Input | 3 wires Pt100 | 3 wires Pt100 | |
| Display | 2 lines of 20 characters on backlighted LCD | 2 lines of 20 characters on backlighted LCD | LED display 2 lines of 4 digits |
| Display Resolution | 0.1 and 0.01°C | 0.1 and 0.01°C | 1°C |
| Digital Interface | RS-232 | RS-232 | RS-232 |
| Power Supply | 110 V optional 220 V | 110 V optional 220 V | 110 V optional 220 V |
| Power | 300 VA | 800 VA | 1200 VA |
| Chassis | Separate shells for thermal & electronic sections with a carrying handle | Separate shells for thermal & electronic sections with a carrying handle | Separate shells for thermal & electronic sections with a carrying handle |
| Dimensions | 140 x 370 x 300 mm
(5.5 x 14.6 x 11.8") | 140 x 370 x 300 mm
(5.5 x 14.6 x 11.8") | 200 x 330 x 420 mm
(7.9 x 13.0 x 16.5") |
Weight: net
gross | 10 kg (22 lb)
17 kg (37.4 lb) | 10 kg (22 lb)
17 kg (37.4 lb) | 12 kg (26.4 lb)
17 kg (37.4 lb) |
Standard
Accessories | Insert extractor, Fuse kit Thermostat leads kit, Electric power cable, Insert reducing block with Ø 4.5-6.5-9.5 mm holes | Insert extractor, Fuse kit, Thermostat leads kit, Electric power cable | Insert extractor, Fuse kit, Electric power cable, Insert reducing block with Ø 7-9-11-13.5 x 175 mm holes |
1 Measure referred at 18°C ambient temperature
2 The relative accuracies and stability shown are referred at 20°C ±3°C ambient temperature
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† All dollar amounts on this site are shown in US currency.
Note: Each unit comes complete with: operator’s manual, power cord, fuse and calibration certificate (NIST traceable). Add "-220V" to model number for 220 Volt power. No additional charge.
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Related Links -
Manual
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Product Manual
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Download
CL550 Series - Temperature Calibrator
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Download
CL551 - Temperature Calibrator
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Download
CL552 - Multifunction Calibrator
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Download
CL550-SOFT - CL550 Software
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