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Isotech Isocal 6 Venus 4951 Temperature Calibrator
The Isotech Isocal 6 Venus 4951 Temperature Calibrator is a multifunctional, adaptable and highly accurate calibration instrument suitable for calibrating all temperature sensor types as well as oil temperature indicators (OTI) and winding temperature indicators (WTI) used in power generation, transmission and distribution.
There are three versions of the Isotech Isocal 6 Venus 4951 Temperature Calibrator available: Basic, Onsite and Advanced. Please see the comparison chart below for further information regarding the differences between these models.
| SKU | IS-4951 | IS-4951S | IS-4951B |
| Title | Isotech Isocal 6 Venus 4951 - Advanced | Isotech Isocal 6 Venus 4951S - Onsite | Isotech Isocal 6 Venus 4951B - Basic |
| Features | |||
| Digital Display of Set and Nominal Block Temperature |
Yes | Yes | Yes |
| Full-Colour, High-resolution Display | Yes | No | No |
| PC Interface | Ethernet + USB Host | Serial | Serial |
| Test Thermostats | Yes - Two Inputs | Yes - Single Input | No |
| Independent Temperature Indicator for Reference Probe |
Yes | Yes | No |
| Additional Inputs for Units Under Test | Up to 3: Two universal inputs for prt, Thermocouple or Process inputs and a further Thermocouple input | No | No |
| Automatic Temperature Cycling | Yes | No | No |
| Data Logging | Yes - Export to USB | No | No |
| Offset Elimination | Yes - block can follow reference input |
No | No |
| Choose English, French, Italian or Spanish Language |
Yes - on full colour display | No | No |
| In Built Web Server | Yes | No | No |
| Tamper Proof Data | Yes - Suitable for life science, automotive and aerospace applications |
No | No |
Each of the aforementioned models has a temperature range of -35°C to +140°C and supports the following six modes of operation:
- Dry Block/ Metal Block Bath (default)
- Stirred Liquid Bath
- Stirred Ice/ Water Bath
- Blackbody Source
- Surface Sensor Calibrator
- ITS-90 Fixed Point (this mode can provide an uncertainty of 0.0005°C)
Please note that additional accessories are required to enable operation in Stirred Liquid Bath, Stirred Ice/ Water Bath, Blackbody Source, Surface Sensor Calibrator and ITS-90 Fixed Point modes.
When used as a traditional dry block, the Isotech Isocal 6 Venus 4951 can calibrate several thermometers simultaneously. It calibrates the entire measurement loop and provides excellent stability, as well as distributed heating and cooling zones for good uniformity, enabling it to deliver excellent thermal performance. It also has a calibration volume of 35mm x 160mm and features fast heating and cooling times. Please see the video below for further information regarding Isotech’s 4000 series.
Introducing our latest range of Multi function Portable Temperature Calibrators
Finally, the Isotech Isocal 6 Venus 4951 Temperature Calibrator meets the capacity requirements of EURAMET/cg-13/v.01, “EA Guidelines on the Calibration of Temperature Block Calibrators”, which was formerly EA10/13 accuracy and best performance.
The Isotech Isocal 6 Venus 4951 Temperature Calibrator is a flexible, precise and dependable OTI/WTI calibrator suitable for bench and in-the-field applications.
Modes of Operation
Please see the videos below for an introduction to the Isotech Isocal 6 Venus 4951 Temperature Calibrator’s six modes of operation.
Dry Block/ Metal Block Bath
ISOCAL-6: Metal Block Bath
Stirred Liquid Bath
ISOCAL-6: Stirred Liquid Bath
Stirred Ice/ Water Bath
ISOCAL-6: Stirred Ice/Water Bath
Blackbody Source
ISOCAL-6: Black Body Source
Surface Sensor Calibrator
ISOCAL-6: Surface Sensor Calibrator
ITS-90 Fixed Point
ISOCAL-6: ITS-90 Fixed Point Apparatus
Isotech Isocal 6 Venus 4951 Temperature Calibrator Key Features
- Multifunctional, adaptable and highly accurate OTI/WTI calibrator
- Suitable for bench and portable calibration
- Calibrate all types of temperature sensors
- Calibrate oil temperature indicators and winding temperature indicators used in power generation, transmission and distribution
- Three models available: Basic, Onsite and Advanced (see table above)
- Temperature range: -35°C to +140°C
- Six modes of operation
- Dry Block/ Metal Block Bath mode (default)
- Stirred Liquid Bath mode
- Stirred Ice/ Water Bath mode
- Blackbody Source mode
- Surface Sensor Calibrator mode
- ITS-90 Fixed Point mode (this mode can provide an uncertainty of 0.0005°C)
- Additional accessories are required to enable operation in Stirred Bath, Blackbody, Surface Sensor and ITS-90 Fixed Point modes
- Calibrate several thermometers simultaneously in Dry Block mode
- Calibrate the whole measurement loop
- Excellent stability
- Distributed heating and cooling zones for good uniformity
- Calibration volume: 35mm x 160mm
- Fast heating and cooling times
- Meets calibration capacity requirements of EURAMET/cg-13/v.01, “EA Guidelines on the Calibration of Temperature Block Calibrators”
- Flexible, precise and dependable OTI/WTI calibrator
What’s Included?
- Your Choice of Isotech Isocal 6 Venus 4951 Temperature Calibrator with Corresponding Accessories
| SKU | Title | What's Included? |
| IS-4951B | Isotech Isocal 6 Venus 4951B - Basic |
Supply Voltage: 108/130V or 208/240v 50/60Hz - Please Specify |
| IS-4951S | Isotech Isocal 6 Venus 4951S - Onsite |
Supply Voltage: 108/130V or 208/240v 50/60Hz - Please Specify |
| IS-4951 | Isotech Isocal 6 Venus 4951 - Advanced |
Supply Voltage: 108/130V or 208/240v 50/60Hz - Please Specify |
Isotech Isocal 6 Venus 4951 Temperature Calibrator Technical Specifications
| Temperature Range | -35°C to 140°C (2) |
| Advanced Range | |
| Stability: Dry Block / Liquid Bath | ±0.01°C |
| Display Resolution | 0.001°C over whole range |
| Accuracy: RTD Input Channel | ±0.05°C ±0.005% RDG |
| Accuracy: Thermocouple Input Channel | E,J,K,N: ±0.2°C @ 660°C R: ±0.6°C S: ±0.7°C @ 660°C T ±0.2°C @ 150°C |
| CJC Accuracy | ±0.35°C |
| Basic/ Site Range | |
| Stability | ±0.03°C |
| Display Resolution | 0.01°C from -19.99 to 99.99C then 0.1C: 0.01C Over PC Interface |
| Common Specification | |
| Stability | Blackbody ±0.3°C Surface Sensor ±0.5°C ITS-90 Cells ±0.0005°C |
| Display Accuracy 4 | 0.15°C |
| Uniformity - Between Wells Dry Block Mode (Radial) | <0.008°C |
| Uniformity - Lower 40mm (Axial) Dry Block Mode | <0.040°C |
| Uniformity - Radial Liquid Bath Mode | <0.02°C |
| Uniformity - Lower 40mm (Axial) As Liquid Bath | <0.026°C |
| Heating Time | -30°C to 140°C: 15 Mins |
| Cooling Time | 140°C to 0°C: 15 Mins |
| Calibration Volume | 35 x 160mm |
| Standard Insert | 6 pockets, 2 x 4.5mm, 2 x 6.4mm, 1 x 8.0mm, 1 x 9.5mm diameter, all 157mm deep |
| Insert Types | Choice of Three - See Accessories |
| Ethernet - supporting software and USB Host | |
| CJC Accuracy | 0.35°C |
| Dimensions | 384H (including handle) x 212W x 312D mm |
| Power | 150 Watts |
| Voltage | 115Vac or 230 Vac 50/60Hz |
| Weight | 10.2kg |
| Notes | (1) In ambient of 20°C: Minimum Temperature is 65°C Below Ambient, Absolute Minimum -55°C |
| (2) In ambient of 20°C: Minimum Temperature is 55°C Below Ambient, Absolute Minimum -45°C | |
| (3) In ambient of 20°C | |
| (4) Dry Block Mode only: Comparing 4.5mm Well to Display Value. | |
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