Ametek Jofra RTC-156 & RTC-157 Reference Temperature Calibrators
Dual-zone heating technology and dynamic load compensation for superior temperature homogeneity .
Overview
Features
- Accurate to ±0.04°C using the external reference sensor
- 4-wire True-Ohm-Measurement technology
- Excellent stability: 0.005°C
- Wide temperature range
- RTC-156: -30 to 155°C (-22 to 311°F)
- RTC-157: -45 to 155°C (-49 to 311°F)
- Unique active dual-zone block for improved temperature homogeneity
- Dynamic Load Compensation for perfect temperature uniformity in the insert
- Display indicator for temperature uniformity
- Intelligent reference sensors hold the calibration data (coefficients) of the reference sensor
- USB communication
- High speed heating and cooling times
- Best performing dry-block with regard to the EURAMET/cg-13/v.01 guideline for testing of dry-blocks
Description
The Ametek Jofra RTC-156 and RTC-157 reference temperature calibrators combine Ametek's unparalleled experience with temperature calibration with cutting edge technological features creating the most sophisticated dry block temperature calibrators on the market.
The Ametek Jofra RTC-156 has a temperature range of -30° to 155°C, while the RTC-157 has a temperature range of -45° to 155°C. Both units boast outstanding accuracy and stability while featuring Ametek's Dynamic Load Compensation (DLC) system that provides perfect temperature uniformity in the insert no matter the number or size of the sensors immersed. The calibrators also offer unique intelligent sensors for plug ‘n' play connectivity, an easy-to-read full-color 5.7-inch VGA display, and a USB connection for improved communications and software downloads.
The Ametek Jofra RTC-156 and RTC-157 reference temperature calibrators are available in three configurations: RTC-A reference temperature calibrator, RTC-B reference temperature calibrator with input for reference sensor, DLC sensor and sensors-under-test, and RTC-C reference temperature calibrator with input for reference sensor and DLC sensor. The RTC-156 and RTC-157 can be used without an external reference sensor. However, users will obtain better accuracies and realize the calibrator's full potential by utilizing the STS-200 reference sensor. Both the STS-200 and DLC sensors contain all individual calibration data regarding the sensor, allowing users to change the reference sensor and be up and running immediately.
The RTC-156 and RTC-157 feature a rugged, lightweight design and multi-hole inserts that cover most commonly used sensor sizes.
The Ametek Jofra RTC-156 and RTC-157 (models A, B and C) ship complete with the following:
- Mains power cable
- Traceable calibration certificate (temperature performance)
- Tool for insertion tubes
- JOFRACAL software
- USB cable
- Set of rubber cones for insulation plugs
- Manuals
Model B contains the following extra items:
- Test cables (2 x red, 2 x black)
- Traceable certificate (input performance for reference sensor and DLC sensor)
- Traceable certificate (input performance for sensor-under-test inputs)
Model C contains the following extra items:
- Traceable certificate (input performance for reference sensor and DLC sensor)
Ametek Jofra RTC-156 and RTC-157 Temperature Calibrators Specifications:
| Parameter | RTC-158 | RTC-250 | |
|---|---|---|---|
| Temperature Range | @ 0°C ambient | -46 to 155°C | -57 to 155°C |
| @ 23°C ambient | -30 to 155°C | -45 to 155°C | |
| @ 40°C ambient | -15 to 155°C | -31 to 155°C | |
| Accuracy | With external ref. sensor (models B&C) | ±0.04°C | ±0.04°C |
| With internal ref. sensor | ±0.10°C | ±0.10°C | |
| Stability | ±0.005°C | ±0.005°C | |
| Radial Homogeneity | 0.01°C | 0.01°C | |
| Resolution | All temperatures | 1°, 0.1°, 0.01°, or 0.001° | |
| Heating Time | -33 to 23°C | 4 minutes | |
| 23 to 155°C | 15 minutes | ||
| -45 to 23°C | 7 minutes | ||
| 23 to 155°C | 8 minutes | ||
| Cooling Time | 155 to 100°C | 4 minutes | |
| 100 to 23°C | 8 minutes | ||
| 23 to -24°C | 15 minutes | ||
| -24to -30°C | 10 minutes | ||
| 155 to 100°C | 5 minutes | ||
| 100 to 23°C | 10 minutes | ||
| 23 to -30°C | 17 minutes | ||
| -30 to -45°C | 25 minutes | ||
| Time to Stability | 10 minutes | ||
| Immersion Depth | 160 mm | ||
| Input Specifications | RTD reference input | See data sheet for complete specifications | |
| DLC sensor input | See data sheet for complete specifications | ||
| RTD sensor under test | See data sheet for complete specifications | ||
| Thermocouple input | See data sheet for complete specifications | ||
| Transmitter Supply | Output voltage | 24 VDC ±10% | |
| Output current | Maximum 28 mA | ||
| Transmitter Input mA (B Model) | Range | 0 to 24 mA | |
| Accuracy (12 months) | ±(0.005% rdg + 0.010 F.S.) | ||
| Voltage Input VDC (B Model) | Range | 0 to 12 VDC | |
| Accuracy (12 months) | ±(0.005% rdg + 0.010 F.S.) | ||
| Switch Input (B Model) | Test voltage | Maximum 5 VDC | |
| Test current | Maximum 2.5 mA | ||
| Communications Interface | Serial data | USB 2.0 device port | |
| Serial data | USB 2.0 host double port (for future expansion) | ||
| LAN | Ethernet MAC 10/100 Base-T (for future expansion) | ||
| SD | SD slot (for future expansion) | ||
| Inserts | Outer diameter | 29.7 mm | |
| Length | 150 mm | ||
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Accessories
Please consider these optional accessories.
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