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
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
