US 
CAN - en Order #: CTC660
Ametek - Jofra CTC660 Dry Block Calibrator
Order #: CTC660
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The Ametek Jofra CTC Series is a fast, time-saving, reliable dry block temperature calibrator designed for on-site use. The large color display is easy-to-read and provides icons and information regarding the status of the calibrator and the calibration in process. Popular functions like automatic switch test and auto stepping are available with special one-key-one-function buttons. Speed, portability, cleanliness, and wide temperature range are all superior over liquid bath systems With the use of the optional external reference probe, this is the most accurate industrial class temperature calibrator on the market. CTC Series is available in three versions. The CTC660 handles temperatures ranging from 28° to 660°C (82° to 1220°F).
Product Highlights
- Temperature range from -25 to 1205°C (-13 to 2200°F) with 6 models
- Accuracy to ± 0.2°C and Stability to ± 0.04°C
- Lightweight and easy to carry
- Multi-hole and/or insert kits
- Input for external reference sensor on all C models
- MVI circuitry ensures stability despite mains supply variations
Each Unit Includes
- CTC dry-block calibrator (user specified)
- Mains power cable (user specified)
- Traceable certificate - temperature performance
- Tool for insertion tubes
- User manual
- Test cables (1 x red, 1 x black)
- USB cable
- JofraCal calibration software
- CTC-660 includes a Heat Shield
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| Temperature Specifications | |
| Temperature Range | |
| Range | 28 to 660°C / 82 to 1220°F |
| Lowest calibration temperature | ambient +5°C / 41°F |
| Accuracy | |
| CTC-660 with internal ref. sensor | ±0.85°C /±1.53°F |
| CTC-660 with STS-120 | ±0.45°C /±0.81°F |
| Stability | ±0.08°C / ±0.14°F |
| Radial Homogeneity (difference between holes) | 0.1°C / 0.18°F |
| Settings | |
| Resolution | 1 or 0.1 or 0.01 |
| Units | °C or °F or K |
| Heating Time | |
| 23 to 660°C / 73 to 1220°F | 18 minutes |
| Cooling Time | |
| 660 to 100°C / 1220 to 212°F | 39 minutes |
| 100 to 50°C / 212 to 122°F | 18 minutes |
| Time to Stability (typical) | 5 minutes |
| Mains Power Specifications | |
| Voltage | 115 V (90-127) / 230 V (180-254) |
| Max Power Consumption | 1150 VA |
| Frequency, US deliveries | 60 Hz ±3 |
| Frequency, non US deliveries | 50 Hz ±3, 60 Hz ±3 |
| Physical Specifications | |
| Dimensions LxWxH | 248x148x305 mm / 9.761x5.83x12.01 in |
| Weight | 6.1 kg / 13.4 lb |
| Immersion Depth | 115 mm / 4.53 in |
| Well diameter | 26 mm / 1.02 in |
| Insert Dimensions (diameter x length) | 25,7 mm x 120 mm / 1.01 x 4.72 in |
| Electrical Specifications | |
| Switch Input (dry contact) | |
| Test Voltage | Maximum 14 VDC |
| Test Current | Maximum 1 mA |
| Digital Interface | USB 2.0 |
| Environmental Specifications | |
| Operating Temperature | 0 to 50°C / 32 to 122°F |
| Storage Temperature | -20 to 50°C / -4 to 122°F |
| Humidity | 5 to 90% Rh, non-condensing |
| Protection Class | IP-10 |
| External reference sensor | |
| STS-120-A-966 | 0 to 660°C /32 to 1220°F |
| Accuracy | |
| Hysteresis (@ 0°C / 32°F) | 0.01°C / 0.018°F |
| Long Term Stability (@ 0°C / 32°F) | 0.014°C / 0.025°F |
| Repeatability | 0.004°C/ 0.007°F |
| Sensing Element | Type PT100 |
| Response Time | |
| STS-120-A: t0.5 (50%) | 8 sec. |
| STS-120-A: t0.9 (90%) | 26 sec. |
| Dimensions | |
| Diameter | 4 mm / 0.157 in |
| Length | 151 mm / 5.96 in |
| Max. height over calibrator top | 25 mm / 0.94 in |
