Ametek Jofra CTC-320A
Dry Block Temperature Calibrator

The Ametek CTC-140A Heats & Cools!

The CTC-320A and the CTC-650A contain an innovative heating block profile. This design heats up the CTC-320A to maximum temperature in just 4 minutes and the CTC-650A in only 10 minutes. The fast performance of the heating block is due to the special profile that minimizes mass and yet, still accepts an insertion tube with a 25 mm / 1 in. outer diameter. This design is a balanced compromise between temperature stability/homogeneity and rapid heating / cooling. The The CTC-320 and the CTC-650B have the same features but are designed with a extra deep 7.5" well for longer sensors calibrations. The CTC series is designed for both on-site and maintenance shop use.The applications are generally critical process control but can vary based oncalibration and testing requirements. The user interface is easy and intuitive.One-key-one-function gives you quick access to timesaving features such as the switch test or the auto-stepping function. All models feature a large, backlit LCD display panel, which is easy-to-read even in well-lit areas. Units featur an informative display that provides icons and information regarding the status of the CTC and the calibration in-progress. The JOFRA CTC series consists of six different models that differ in temperature ranges and immersion depths. All units offer similar features. A rugged, slim-line, aluminum outer casing with diecast top and bottom protects the CTC series of dry-block calibrators. For easy documentation and automatic calibration, all units are delivered with RS232 serial communication and AMECAL-LIGHT PC calibration software. Six models - The JOFRA CTC series consists of six different models which differ in temperature range and immersion depth. All units offer similar features and the large, backlit LCD display panel, which is easy-to-read even in well-lit areas. A rugged, slim-line, aluminium outer casing with die-cast top and bottom protects the CTC series of dry-blocks. Model and temperature range: CTC-140 A -17 to 140 C/-1 to 284 F CTC-320 A 33 to 320 C/91 to 608 F CTC-320 B 33 to 320 C/91 to 608 F (Deep Well) CTC-650 A 33 to 650 C/91 to 1202 F CTC-650 B 33 to 650 C/91 to 1202 F (Deep Well) CTC-1200 A 300 to 1200 C/572 to 2200 F Well - optimized for speed - The special designed heating block profile reduces the mass so it heats up and cools down very quickly. The design still offers good stability and accuracy. High flexibility - You are not limited by fixed holes. Interchangeable insertion tubes are used to match the diameter of your sensor-under-test. Also multihole inserts are available. Stability indicator - Clear audio and visual indication in the display when the calibrator is stable. FEATURES: Interchangeable inserts Multi-hole insertion tubes Automatic switch test RS 232 and calibration software Multi information display Safty banana bushings Auto stepping Stability indicator Count down timer (shows when unit is stable) Programmable maximum temperature Fast simulation/training mode Re-calibration from keyboard Easy-to-use - Intuitive operation - All instrument controls may be performed from the front panel. The heat source is positioned away from the panel. This design helps to protect the operator. The main functions on the CTC series are designed with one-key-one-function logic. This means that there are no sub-menus or difficult to remember multiple keystrokes necessary to access primary functions. The easy-to-read, backlit display features dedicated icons, which help in identifying instrument conditions and operational steps. Set temperature - The Up and Down arrow keys allow the user to set the exact temperature desired with a resolution of 0.1 C or F. Instrument setups - The CTC series stores the complete instrument setup, including: engineering units, stability criteria, resolution, display contrast, slope (ramp) rate, auto step settings, and maximum temperature. Automatic switch test - Operators can save a lot of time using the automatic thermoswitch test function to find values for the Open and Close temperatures. Additionally, this feature displays the hysteresis (deadband) between the two points. The feature ensures a very high repeatability when testing thermo-switches. Simply press the SWITCH TEST key to activate the function. Auto-stepping - This feature saves manpower. The operator may stay in the control room, or another remote location, monitoring the output from the sensor-under-test while the CTC series calibrator is placed in the process and automatically changes the temperature using a programmed step value and rate. Up to 9 different temperature steps may be programmed, including the hold time for each step. This feature is also ideal for burning-in new sensors prior to installation: This minimizes initial drift and allows for initial testing. It is also useful for testing temperature data loggers. Maximum temperature - From the setup menu, the user can select the maximum temperature limit for the calibrator. This function prevents damage to the sensor-under-test caused by the application of excessive temperatures. Re-calibration/adjustments - The CTC series has a very easy and straight forward procedure for re-calibration/adjustment. There is no need fora screwdriver or PC software. The only thing you need is a reliable reference thermometer. Place this reference probe in the calibrator and follow the instructions on the display. Liquid filled sensors and switches - The tall B models with an immersion depth of 190 mm / 7.5 in. are ideal for calibration of liquid filled sensors. The specially designed non-linear heating elements in the CTC-650B and the increased block mass provide a very homogeneous temperature throughout the block. It is essential for the quality of the calibration/test that the full lenght of the sensing part of the sensor is exposed to the same temperature. Calibrate analog reading devices or switches with very high repeatability. Simplified calibration documentation All JOFRA CTC- instruments are supplied with RS232 computer interface and the calibration software AMECAL-LIGHT for on-line use. This WINDOWS ®-based software allows the user to customize his or her calibration routines. The software is easy to use so you do not have to be a programmer to configure your own calibration procedures. After calibration you can print out certificates that contain all necessary information for your ISO-9000 or similar quality systems. The ETC calibrator can also work with the larger AMECAL-TEM-PERATURE software, which supports automatic calibration for all JOFRA dry-block calibrators equipped with an RS-232 serial data interface including the JOFRA DTI-1000 digital thermome-ter. For semi-automatic calibrations, the software also supports liquid baths, ice points, or other dry-block heating and cooling sources. Using the software's SCENARIO function allows for combining instruments in virtually any configuration.

SPECIFICATIONS:

Specs 23 C	CTC140A	CTC320A	CTC650A	CTC320B	CTC650B	CTC1200A
Min. Temp.	-17 C -1 F	33 C 91 F	33 C 91 F	33 C 122 F	33 C 122 F	300 C 572 F
Max. Temp.	140 C 284 F	320 C 608 F	650 C 1202 F	320 C 608 F	650 C 1202 F	1205 C 2200 F
Heating Time	15 min.	4 min.	10 min.	20 min.	39 min.	45 min.
Cooling Time	100 C to 0 C 10 Min	320 C to 100 C 16 Min	650 C to 100 C 28 Min	320 C to 100 C 22 Min	650 C to 100 C 62 Min	1200 C to 300 C 120 Min
Accuracy	0.4 C 0.7 F	0.5 C 0.9 F	0.9 C 1.6 F	0.5 C 0.9 F	0.6 C 1.1 F	2.0 C 3.6 F
Stability	0.05 C 0.09 F	0.1 C 0.18 F	0.1 C 0.18 F	0.1 C 0.18 F	0.05 C 0.09 F	0.1 C 0.18 F
Immersion Depth	115 mm 4.5 in.	110 mm 4.3 in.	110 mm 4.3 in.	190 mm 7.5 in.	190 mm 7.5 in.	110 mm 4.3 in.
Insert Diameter	19 mm 3/4 in.	26 mm 1 in.	26 mm 1 in.	26 mm 1 in.	26 mm 1 in.	27 mm 1 in.
Size/Weight	9.5 x 5.5 x 12.8 in. 15.5 Lbs.	9.5 x 5.5 x 12.8 in. 11 Lbs.	9.5 x 5.5 x 12.8 in. 13 Lbs.	9.5 x 5.5 x 16.1 in. 15.3 Lbs.	9.5 x 5.5 x 16.1 in. 23 Lbs.	9.5 x 5.5 x 16.1 in. 26.5 Lbs.

All Calibrators include Test Leads, Power Cable, 1 Insert
Tube (You Select), Manual, Factory Calibration Certificate,
RS-232 Cable, AmeCal-Light Software, Insert Removal Tool