CTC Series - Dry-block
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Compact Temperature Calibrator CTC-series » Temperature ranges CTC-140 A CTC-320 A CTC-320 B CTC-650 A CTC-650 B CTC-1200 A » Fast calibration is timesaving The specially designed heating block profile heats up to 320°C / 608°F in just 4 minutes and to 650°C / 1202°F in only 10 minutes » High flexibility You are not limited by fixed holes. Inter-changeable insertion tubes are used to match the diameter of your sensorunder-test » Enhanced stability MVI circuitry ensures stability despite mains supply variations in the process environment » Timesaving features Fast one-key-one-function access to the automatic switch test and auto stepping » Documentation made easy RS232 communication and JOFRACAL calibration software are included in the standard delivery » Complete marine program Part of a complete program of marine approved temperature, pressure and signal calibrators; including temperature sensors A fast, timesaving, and reliable true temperature calibrator designed for on-site use. The CTC series is a fast dry-block that offers both interchangeable inserts, the MVI stability circuitry, and calibration software. Both speed and portability are superior to liquid baths. Dry-block calibrators do not require hazardous liquids and provide a wide temperature range. Calibrate RTD’s, thermocouples, thermoswitches, thermistors, and other common temperature sensing devices. The CTC series is designed for both on-site and maintenance shop use. The applications are generally critical process control but can vary based on calibration 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 easyto-read even in well-lit areas. Units feature an informative display that provides icons and information regarding the status of the CTC and the calibration in-progress. The 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 die-cast 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 JOFRACAL calibration software. ISO 9001 Manufacturer Specification Sheet SS-CTC

Fast heating and cooling MVI - Improved temperature stability The CTC-320 A and the CTC-650 A contain an innovative heating block profile. This design heats up the CTC-320 A to maximum temperature in just 4 minutes and the CTC650 A 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. MVI stands for ’’Mains power Variance Immunity’’. Unstable mains...

Stability indicator A bold checkmark on the display indicates that the calibrator has reached the desired set temperature and is stable. The operator may change the stability criteria and establish a greater sense of security in the calibration results. A convenient countdown timer is activated five minutes before the unit reaches stability. 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...

JOFRACAL CALIBRATION SOFTWARE JOFRACAL calibration software ensures easy calibration of RTD´s, thermocouples, transmitters, thermoswithes, pressure gauges and pressure switches. JOFRACAL can be used with JOFRA DPC-500, HPC and IPI pressure calibrators, all JOFRA temperature calibrators, as well as AMC900, ASC300 multi signal calibrator and ASM-800 signal multi scanner. STANDARD DELIVERY • CTC dry-block calibrator (user specified) • Mains power cable (user specified) • Traceable certificate - temperature performance • Insert (user specified) • Tool for insertion tubes • User manual •...

FUNCTIONAL SPECIFICATIONS Immersion depth Cooling time Measured after the stability indicator has been on for 10 minutes. Measuring time is 30 minutes. minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes minutes Thermal protection shield (Optional) - 104216 An external heat shield is available and may be placed on top of the calibrator to reduce the hot air stream around the sensor-undertest. This is especially important for testing thermocouples having headmounted transmitters with coldjunction compensation. Support rod for...

PHYSICAL SPECIFICATIONS Automatic switch test Instrument dimensions Compact Temperature Calibrator • CTC

INSERTS FOR CTC SERIES Inserts for CTC-140 A and CTC-320 A/B are made of aluminum. Inserts for CTC-650 A/B are made of brass. Inserts for CTC-1200 A are made of high-temperature steel alloy. All specifications on hole sizes are referring to the outer diameter of the sensor-under-test. The correct clearance size is applied in all predrilled inserts. Inserts, undrilled Instruments Inserts Undrilled insulation plug Spare part no. for predrilled inserts - metric (mm) Instruments Probe diameter Package of the above inserts Multi-hole type 1 Spare part no. for predrilled inserts - imperial (inch)...

ORDERING INFORMATION Order number Description Base model number CTC140A CTC-140 A, -17 to 140°C / -1 to 284°F CTC320A CTC-320 A, 33 to 320°C / 91 to 608°F CTC650A CTC-650 A, 33 to 650°C / 91 to 1202°F CTC320B CTC-320 B, 33 to 320°C / 91 to 608°F CTC650B CTC-650 B, 33 to 650°C / 91 to 1202°F CTC1200A CTC-1200 A, 300 to 1205°C / 572 to 2200°F Power supply (US deliveries 60 Hz only) 115 115VAC 230 230VAC Mains power cable type A European, 230 V, B USA/CANADA, 115 V C UK, 240 V D South Africa, 220 V E Italy, 220 V F Australia, 240 V G Denmark, 230 V H Switzerland, 220 V I Israel, 230 V Insert...