Ametek Jofra CTC-350 compact dry-block temperature calibrator features improved accuracy by as much as 25% over the previous CTC version. This makes it the most accurate industrial class temperature calibrator on the market with a range of +28°C to +350°C (+82°F to +662°F)
There are two models of the CTC-350 these include.
We supply a free of charge traceable calibration and certification with the purchase of a new CTC-350 dry-block calibrator.
Contact us if you require any assistance with your choice of any Ametek Jofra calibrators and accessories.
Ametek Jofra CTC-350 compact dry-block temperature calibrator features improved accuracy by as much as 25% over the previous CTC version. This makes it the most accurate industrial class temperature calibrator on the market with a range of +28°C to +350°C (+82°F to +662°F)
There are two models of the CTC-350 these include.
With a wide temperature range from +28°C to +350°C (+82°F to +662°F). This makes it possible to cover most industrial temperature applications.
The CTC feature a purpose-dedicated temperature regulator, which provides a very fast heating and cooling time. Performing a three-point calibration procedure is fast and effortless.
The CTC-350 is used for both on-site and maintenance shop calibration. It is lightweight, easy to carry, and the handle is placed away for the heat-zone
The model C includes a signal input for an external reference sensor. The sensor improves the accuracy even more. The external reference sensor has been developed to match each to the CTC models.
The CTC-350 has two modes when using the external reference sensor.
In “External ref” mode, the external reference sensor represents the True value.
In the “Set follows True” mode, the reference sensor serves two purposes; measuring the reference temperature and at the same time controlling the block temperature to the set temperature.
Adjust the internal reference sensor to give the same readings as the external reference sensor by performing a Self-Calibration. After the Self-Calibration the calibrator can be used without the external reference sensor. Regular Self-Calibration is needed to ensure accuracy. The Self-Calibration is simple to perform following the steps in the reference manual.
The colour display is easy to read and very informative that fives a full overview of the calibration task you are currently performing. The main temperatures, like SET, READ, TRUE and SUT (Sensor under test), are always displayed at all stages of the programming or calibration procedure.
The display contains information at a glance, such as:
The CTC-350 is very versatile calibrator with many integrated functions – you can run the calibration in four different ways.
Mains power variance immunity improves temperature stability. Unstable mains supplies are a major contributor to calibration inaccuracies. Traditional temperature calibrators often become unstable in Industrial environments where electrical motors, heating elements and other devices are periodically cycled on and off. The cycling supply can cause lower quality temperature regulators to perform inconsistently, leading to both inaccurate reading and unstable temperatures. The CTC series employ the MVI, thus avoiding such stability problems. The MVI circuitry continuously monitors the supply voltage and ensures a constant energy flow to the heating elements.
Insert heat loss due to mass loading from multiple or large sensors can be a challenge for most dry-block calibrators. The CTCs advanced feedback algorithms combined with the external reference sensor effectively addresses these challenges and makes the accuracy even better.
When switching on the CTC-350 calibrator or connecting the reference sensor, the calibrator immediately warns the user if any of the calibration certificates are overdue. A buzzer and warning appear.
All STS reference sensors are plug and play as they contain information in the connector’s memory chip: sensor coefficients, unique serial number, temperature range, calibration date, calibration interval.
The CTC-350 will be blocked if it is set to a temperature outside of the reference sensors specifications. This protects the reference sensor from being damaged.
The CTC series offers a broad range of inserts to match the diameter of almost any unit under test. For flexibility, there is multi-hole inserts with the most common sensor diameters in both metric and imperial measures.
The CTC-350 calibrator can be programmed to run in silent operation. This function is an advantage if calibrating in a laboratory if an office. If used in silent operation the calibrator in not using its full cooling potential.
The support rod can be mounted on all the CTC calibrators and it is used to hold the sensor under test in its position while calibrating. Includes rod, sensor grip and fixture.
You can download firmware and software updates at www.ametekcalibration.com Register your products and receive notifications when there is a firmware upgrade or other useful information regarding the instrument.
The specially designed protective carrying case gives excellent protection for the CTC calibrators. The carrying case has compartments for inserts, cables, manuals, plugs and more.
The CTC-350 is supplied with the highly versatile calibration software JofraCal. All calibrations can be documented with a certificate, given that the CTC is controlled for a PC. When the calibrated has reached the desired temperature and stability it will prompt you to type in the UUT temperature. JofraCal documents all your calibration needs.
Temperature Range |
|
Ambient temperature ±5°C / 41°F |
+28°C to +350°C (+82°F to +662°F) |
Accuracy with External STS Reference Sensor STS-120-A-935 (model C) |
|
@ Full range |
± 0.25°C / ± 0.45°F |
Accuracy with Internal Reference Sensor (models A and C) |
|
@ +350°C / +662°F |
± 0.45°C / ± 0.81°F |
@ +200°C / +392°F |
± 0.40°C / ± 0.72°F |
Stability |
|
± 0.05°C / ± 0.09°F |
|
Radial Homogeneity (difference between holes) |
|
@ +350°C / +662°F |
0.04°C / 0.072°F |
@ +200°C / +392°F |
0.02°C / 0.036°F |
Influence From Load Ø6mm Full Range |
|
With internal Reference |
0.35°C / 0.63°F |
With External Reference |
0.01°C / 0.02°F |
Resolution (user selectable) |
|
All Temperatures |
1° or 0.1° or 0.01° |
Temperature Unit in Display |
|
User Selectable |
°C, °F or K |
Heating Time |
|
+23°C to +350°C / +73°F to +662°F |
6 minutes |
Cooling Time |
|
+350°C to +100°C / +662°F to +212°F |
20 minutes |
+100°C to +50°C / +212°F to +122°F |
14 minutes |
Time to Stability |
|
10 minutes |
Weight and Instrument Size |
|
Weight |
5.0 kg / 11.0 lb |
(L x W x H) |
248 x 148 x 305 mm / 9.76 x 5.83 x 12.01 in |
Immersion Depth |
|
115mm / 4.53 in |
Temperature Range |
|
0°C to +350°C / +32°F to +662°F |
|
Accuracy |
|
Hysteresis @ 0°C / +32°F |
0.01°C / 0.018°F |
Long term stability @ 0°C / +32°F |
Typically, 0.014°C / 0.025°F |
Repeatability |
0.004°C / 0.007°F |
Sensing Element |
|
PT100 |
|
Dimensions |
|
Diameter |
4 mm / 0.157 in |
Length |
135 mm / 5.32 in |
Max. height over calibrator top |
10 mm / 0.39 in |
All predrilled inserts are supplied with an insulation plug drilled with the necessary holes.
Sensor Diameter |
Insert Code * |
CTC-350 (A/C) |
3 mm |
003 |
129429 |
4 mm |
004 |
129430 |
5 mm |
005 |
129431 |
6 mm |
006 |
129432 |
7 mm |
007 |
129433 |
8 mm |
008 |
129434 |
9 mm |
009 |
129435 |
10 mm |
010 |
129436 |
11 mm |
011 |
129437 |
12 mm |
012 |
129438 |
13 mm |
013 |
129439 |
14 mm |
014 |
129440 |
15 mm |
015 |
129441 |
16 mm |
016 |
129442 |
18 mm |
018 |
129443 |
20 mm |
020 |
129444 |
Pack of the above inserts |
---- |
129504 |
Multi-hole |
M01 |
129491 |
Sensor Diameter |
Insert Code * |
CTC-350 (A/C) |
1/8 in |
125 |
129447 |
3/16 in |
187 |
129448 |
1/4 in |
250 |
129449 |
5/16 in |
312 |
129450 |
3/8 in |
375 |
129451 |
7/16 in |
437 |
129452 |
1/2 in |
500 |
129453 |
9/16 in |
562 |
129454 |
5/8 in |
625 |
129455 |
11/16 in |
688 |
129456 |
13/16 in |
750 |
129457 |
3/4 in |
813 |
129458 |
Pack of above Inserts |
---- |
129505 |
Multi-hole |
M02 |
129492 |
*Use insert code when ordering a Jofra standard insert together with the CTC calibrator
All undrilled inserts include insulation plugs.
Sensor Diameter |
Insert Code * |
CTC-350 (A/C) |
5 – pack, undrilled inserts with no reference hole |
UN1 |
129445 |
5 – pack, undrilled inserts with reference hole |
UN2 |
129446 |
*Use insert code when ordering a Jofra standard undrilled insert together with the CTC calibrator
Standard Delivery – Model A and C Includes:
Reference Sensor |
STS120A935EH |
Carry Case |
129540 |
Support Rod Set |
129539 |
Fixture for sensor grip |
125066 |
Sensor grip |
125067 |
Cleaning brushes – 4 mm Pack of 3 pcs |
122832 |
Cleaning brushes – 6 mm Pack of 3 pcs |
60F174 |
Cleaning brushes – 8 mm Pack of 3 pcs |
122822 |
We supply a free of charge traceable calibration and certification with the purchase of a new CTC-350 dry-block calibrator.
Contact us if you require any assistance with your choice of any Ametek Jofra calibrators and accessories.