Measuring Tools
Fluke 1777 - Three-Phase Power Quality Analyzer
Automatic measurements. More flexibility. Better power quality troubleshooting.
Fluke 1770 Series Three-Phase Power Quality Analyzers eliminate the complexities of power quality logging, troubleshooting, and analysis. Engineered to be the faster, easier way to perform power quality studies, the 1770 Series offers automatic measurements, a straightforward user interface and setup, best-in-class specifications, and a simplified reporting platform. The instrument can also be powered directly from the measurement circuit, eliminating the need to find a power outlet or use a lengthy extension cord.
With the 1770 Series you’ll never miss a critical power quality event—from fast transients up to 8 kV, harmonics up to 30 kHz, dips and swells, as well as the voltage, current, and power measurements that enable you to characterize your electrical system.
Automatic measurement capture
Whether you’re performing a quick system check or a detailed power quality study, consistent data is key. The Fluke 1770 Series offers a unique automatic measurement capture system that helps ensure you’re collecting the right data every time, while still giving you the flexibility to select and adjust specific parameters as needed. More than 500 power quality parameters are captured by default and the guided setup makes it easy to select the right parameters for the system you’re working on. Logged data is instantly viewable, downloadable, and shareable with Fluke Energy Analyze Plus software so you never need to wait to finish a session before reviewing results or analyzing data.
Ultimate measurement confidence
The Fluke 1770 Series are 2-in-1 devices that combine the troubleshooting functionality of a power quality meter with the robust analysis and logging capabilities of a standalone power quality analyzer—in a single, easy-to-use, handheld device.
The ‘PQ Meter’ function gives you immediate access to live onscreen data in the field so you can quickly identify potential problems while troubleshooting. The detailed ‘PQ Logging and Analysis’ function eliminates the complexity of performing power quality studies by guiding you through the setup process ensuring you’re capturing the right data every time. Couple these measurement modes with a unique measurement connection autocorrect function and you can be confident that you never need to worry about going back for a second measurement—even if you were unsure about what to look for when you started.
Powerful analysis software with easy-to-create reports
Fluke 1770 Series Power Quality Analyzers come standard with the powerful Fluke Energy Analyze Plus software, designed to eliminate the hassles found with other multi-purpose application software. Energy Analyze Plus helps you evaluate power quality data right out of the box and without extensive training.
Energy Analyze Plus makes downloading, analyzing, tracking, and reporting power quality and energy data easier than ever. Quickly compare results to historical values, benchmark against industry norms, compare measured data to local conditions, and create a more complete picture of what’s occurring across your facility, even as the data is still being collected. Energy Analyze Plus offers unified support for the Fluke 1730, 1740, and 1770 Series of Energy Loggers and Power Quality Analyzers.
“In-workshop” and “in-the-field” setup and download through PC application software
Simple data downloads using USB memory stick, WiFi, LTE, wired Ethernet, or USB cable
Analyze every measured detail of energy consumption and power quality state-of-health with automated reporting
One-touch reporting creates standardized reports conforming to standards like EN 50160, IEEE 519, GOST 33073 IEC 61000-2-2, or export data in PQDIF or NeQual compatible format or CSV for use with third-party software
Advanced analysis allows the user to choose any available logged parameter and create a highly customized view of measurements for advanced data correlation
High-speed voltage transient capture
Transients negatively impact otherwise healthy systems every day and their potential to damage your equipment can’t be underestimated. Whether your system is experiencing impulsive or oscillatory transients, the results can be devastating and cause problems ranging from insulation failures to total equipment failures. The Fluke 1775 and Fluke 1777 incorporate advanced transient capture technology to help you clearly identify high-speed voltage transients, so you have the data you need to stop them in their tracks. The Fluke 1775 Power Quality Analyzer has 1MHz sampling capability to capture fast transients, while the Fluke 1777 Power Quality Analyzer has 20MHz sampling capability to capture the fastest transients in high detail.
Compliant to international standards
The Fluke 1770 Series offers the best-in-class accuracy you’ve come to expect from a Fluke Power Quality Analyzer in a future IEC 61000-4-30 Class A edition 3 compliant package. On top of that, the 1770 Series has been engineered to meet the future requirements of Class A edition, for conformance to EN 50160 and IEEE 519, so you’ll be prepared to tackle tomorrow’s measurement requirements, today.
Fluke 1770 Series Three-Phase Power Quality Analyzers eliminate the complexities of power quality logging, troubleshooting, and analysis. Engineered to be the faster, easier way to perform power quality studies, the 1770 Series offers automatic measurements, a straightforward user interface and setup, best-in-class specifications, and a simplified reporting platform. The instrument can also be powered directly from the measurement circuit, eliminating the need to find a power outlet or use a lengthy extension cord.
With the 1770 Series you’ll never miss a critical power quality event—from fast transients up to 8 kV, harmonics up to 30 kHz, dips and swells, as well as the voltage, current, and power measurements that enable you to characterize your electrical system.
Automatic measurement capture
Whether you’re performing a quick system check or a detailed power quality study, consistent data is key. The Fluke 1770 Series offers a unique automatic measurement capture system that helps ensure you’re collecting the right data every time, while still giving you the flexibility to select and adjust specific parameters as needed. More than 500 power quality parameters are captured by default and the guided setup makes it easy to select the right parameters for the system you’re working on. Logged data is instantly viewable, downloadable, and shareable with Fluke Energy Analyze Plus software so you never need to wait to finish a session before reviewing results or analyzing data.
Ultimate measurement confidence
The Fluke 1770 Series are 2-in-1 devices that combine the troubleshooting functionality of a power quality meter with the robust analysis and logging capabilities of a standalone power quality analyzer—in a single, easy-to-use, handheld device.
The ‘PQ Meter’ function gives you immediate access to live onscreen data in the field so you can quickly identify potential problems while troubleshooting. The detailed ‘PQ Logging and Analysis’ function eliminates the complexity of performing power quality studies by guiding you through the setup process ensuring you’re capturing the right data every time. Couple these measurement modes with a unique measurement connection autocorrect function and you can be confident that you never need to worry about going back for a second measurement—even if you were unsure about what to look for when you started.
Powerful analysis software with easy-to-create reports
Fluke 1770 Series Power Quality Analyzers come standard with the powerful Fluke Energy Analyze Plus software, designed to eliminate the hassles found with other multi-purpose application software. Energy Analyze Plus helps you evaluate power quality data right out of the box and without extensive training.
Energy Analyze Plus makes downloading, analyzing, tracking, and reporting power quality and energy data easier than ever. Quickly compare results to historical values, benchmark against industry norms, compare measured data to local conditions, and create a more complete picture of what’s occurring across your facility, even as the data is still being collected. Energy Analyze Plus offers unified support for the Fluke 1730, 1740, and 1770 Series of Energy Loggers and Power Quality Analyzers.
“In-workshop” and “in-the-field” setup and download through PC application software
Simple data downloads using USB memory stick, WiFi, LTE, wired Ethernet, or USB cable
Analyze every measured detail of energy consumption and power quality state-of-health with automated reporting
One-touch reporting creates standardized reports conforming to standards like EN 50160, IEEE 519, GOST 33073 IEC 61000-2-2, or export data in PQDIF or NeQual compatible format or CSV for use with third-party software
Advanced analysis allows the user to choose any available logged parameter and create a highly customized view of measurements for advanced data correlation
High-speed voltage transient capture
Transients negatively impact otherwise healthy systems every day and their potential to damage your equipment can’t be underestimated. Whether your system is experiencing impulsive or oscillatory transients, the results can be devastating and cause problems ranging from insulation failures to total equipment failures. The Fluke 1775 and Fluke 1777 incorporate advanced transient capture technology to help you clearly identify high-speed voltage transients, so you have the data you need to stop them in their tracks. The Fluke 1775 Power Quality Analyzer has 1MHz sampling capability to capture fast transients, while the Fluke 1777 Power Quality Analyzer has 20MHz sampling capability to capture the fastest transients in high detail.
Compliant to international standards
The Fluke 1770 Series offers the best-in-class accuracy you’ve come to expect from a Fluke Power Quality Analyzer in a future IEC 61000-4-30 Class A edition 3 compliant package. On top of that, the 1770 Series has been engineered to meet the future requirements of Class A edition, for conformance to EN 50160 and IEEE 519, so you’ll be prepared to tackle tomorrow’s measurement requirements, today.
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Portable multi-function calibrator simplifies calibration work
Whether you're calibrating instruments, troubleshooting a problem, or running routine maintenance, the Fluke 754 with HART® communication can help you get the job done faster. It does many different tasks quickly and it's the only process calibrator you need to carry. This rugged, reliable, integrated communicating calibrator is ideal for calibrating, maintaining, and troubleshooting HART smart transmitters and other instrumentation.
Measurement and source capabilities:
- AC/DC voltage
- mA loop w/ 24V loop power
- Pressure
- Thermocouples & RTDs
- Frequency
- Resistance
Enhanced process calibrator operation
With the bright white dual display, you’ll be able to read both sourced and measured parameters simultaneously. The rechargeable Li-Ion battery offers up to 10 hours uninterrupted usage allowing you to complete one task after another without needing to stop, and also includes direct AC power capabilities if needed. Finally, communicate with HART smart digital transmitters directly through the mA measurement jacks for seamless calibration with fewer connections.
Do more, with less
The 754 does the work of several tools. It sources, simulates and measures pressure, temperature, and electrical signals with one rugged, hand-held device. The powerful built-in HART interface can perform nearly all day-to-day tasks you now perform with a separate digital communicator. It can handle fast-pulsed RTD transmitters and PLCs, with pulses as short as 1 ms. The 754 also measures/sources pressure using any of the Fluke 750P Series Pressure Modules as a reference and boasts many additional features like:
- Custom auto-step and ramping
- Custom units
- User-entered values during test
- One-point and two-point switch testing
- Square root DP flow testing
- Programmable measurement delay
Download procedures, lists, and instructions
The 754 is a power multifunction documenting calibrator that you can use to download procedures, lists, and instructions created with software, or upload data for printing, archiving, and analysis. The tool can hold up to a full week of downloaded procedures and calibration results and offers compatibility with many asset management software. Users can also create and run automated as-found or as-left procedures to satisfy quality programs or regulations, and records and documents results.
For documentation, the 754 automates calibration procedures and captures your data. And, of course, it helps you meet rigorous standards like ISO 9000, FDA, EPA, and OSHA regulations. Plus, the graphical screen, Li-Ion battery for longer life, USB port, and accessories help you work smarter and faster.
To create a seamless/paperless calibration management system consider adding Fluke DPCTrack2 Calibration Management software.
Whether you're calibrating instruments, troubleshooting a problem, or running routine maintenance, the Fluke 754 with HART® communication can help you get the job done faster. It does many different tasks quickly and it's the only process calibrator you need to carry. This rugged, reliable, integrated communicating calibrator is ideal for calibrating, maintaining, and troubleshooting HART smart transmitters and other instrumentation.
Measurement and source capabilities:
- AC/DC voltage
- mA loop w/ 24V loop power
- Pressure
- Thermocouples & RTDs
- Frequency
- Resistance
Enhanced process calibrator operation
With the bright white dual display, you’ll be able to read both sourced and measured parameters simultaneously. The rechargeable Li-Ion battery offers up to 10 hours uninterrupted usage allowing you to complete one task after another without needing to stop, and also includes direct AC power capabilities if needed. Finally, communicate with HART smart digital transmitters directly through the mA measurement jacks for seamless calibration with fewer connections.
Do more, with less
The 754 does the work of several tools. It sources, simulates and measures pressure, temperature, and electrical signals with one rugged, hand-held device. The powerful built-in HART interface can perform nearly all day-to-day tasks you now perform with a separate digital communicator. It can handle fast-pulsed RTD transmitters and PLCs, with pulses as short as 1 ms. The 754 also measures/sources pressure using any of the Fluke 750P Series Pressure Modules as a reference and boasts many additional features like:
- Custom auto-step and ramping
- Custom units
- User-entered values during test
- One-point and two-point switch testing
- Square root DP flow testing
- Programmable measurement delay
Download procedures, lists, and instructions
The 754 is a power multifunction documenting calibrator that you can use to download procedures, lists, and instructions created with software, or upload data for printing, archiving, and analysis. The tool can hold up to a full week of downloaded procedures and calibration results and offers compatibility with many asset management software. Users can also create and run automated as-found or as-left procedures to satisfy quality programs or regulations, and records and documents results.
For documentation, the 754 automates calibration procedures and captures your data. And, of course, it helps you meet rigorous standards like ISO 9000, FDA, EPA, and OSHA regulations. Plus, the graphical screen, Li-Ion battery for longer life, USB port, and accessories help you work smarter and faster.
To create a seamless/paperless calibration management system consider adding Fluke DPCTrack2 Calibration Management software.
Fluke 190-104-III-S Offers
Accurate and versatile, this portable oscilloscope provides a fast sampling rate of up to 5 GS/s, a 200 ps resolution, and deep memory of 10,000 samples per channel. Perform timing or amplitude-related measurements on three phases or three-axis control systems, or compare and contrast multiple test points in a circuit under test.
- Up to four independent floating isolated inputs, up to 1000 V
- Up to 5 GS/s real time sampling (depending on model and channels used)
- Deep memory: 10,000 points per trace waveform capture (scope mode)
- CAT III 1000 V/CAT IV 600 V safety rated instrument for industrial environments
- Up to seven hours of battery operation using BP291
- Large, bright color display is easy to view in nearly any environment
- Easy to store and view historical data and transfer to a PC via USB or Wifi
- Convenient battery access door for quick battery swaps in the field
- IP51 rating, dust and drip-proof
- Connect-and-View triggering for intelligent, automatic triggering on fast, slow and even complex signals
- Frequency spectrum using FFT-analysis
- Automatic capture and REPLAY of 100 screens
- ScopeRecord mode gives 30,000 points per input channel for low frequency signal analysis
- TrendPlot Paperless Recorder mode with deep memory for longterm automatic measurements
- 5000 count DMM included in the 2-channel models
Applications
- Microelectronics
- Troubleshooting
Measure from mV to kV safely
Independently isolated inputs allow you to make measurements in mixed circuits having different ground references reducing the risk of accidental short circuits. Conventional bench oscilloscopes without special differential probes and isolation transformers can only reference measurements to line power earth ground. ScopeMeter 190 Series III test tools are engineered to cover a wide application range from mV to kV, so you’re ready for anything from microelectronics to heavy duty higher voltage electrical applications. 190 Series III 60 MHz and 100 MHz configurations include VPS421 100:1 probes for higher voltage applications, while the 200 MHz and 500 MHz configurations include VPS410-II 10:1 probes suitable for both microelectronics and higher voltage applications.
IP-51 rated for harsh environments
Rugged and shock-proof, ScopeMeter Test Tools are built for dirty, hazardous environments. With its sealed case, it can endure dust, drips, humidity and airborne pollutants. Every time you reach for ScopeMeter Test Tool you can be confident it will work reliably wherever your work takes you.
USB and Wi-Fi connectivity
The Fluke 190 Series III offers two USB ports, electrically isolated from measurement input circuits allowing you to quickly and easily transfer data to a PC, archive and share waveforms with OEMs, colleagues and support staff, or store waveforms, screen captures and instrument setups onto USB memory devices for later use. Easily transfer saved files via USB stick, direct connection via the USB interface or optional Wi-Fi connectivity. These files can be used for further data handling or in FlukeView-2 Software to study waveforms in greater detail.
Connect-and-View triggering
Connect-and-View triggering provides an instant, stable display without the need for adjusting settings. If you’ve used other scopes, you know how tricky triggering can be. If settings are incorrect, results can be unstable or incorrect. Connect-and-View automatically sets up correct triggering by recognizing signal patterns. Without touching a button, you get a stable, reliable and repeatable display of virtually any signal including motor drive and control signals. It’s especially fast and convenient when you’re measuring a number of test points in rapid succession.
Built-in digital multimeter
Conveniently switch from waveform analysis to precise multimeter measurements using the built in 5000 count digital multimeter on two channel 190 Series III models. Measurement functions include Vdc, Vac, Vac+dc, resistance, continuity and diode test. Measure current and temperature using suitable shunt, probe or adapter with wide range of scaling factors.
TrendPlot paperless recorder— records up to 11 days to help you find intermittent faults
The toughest faults to find are those that happen only once in a while. These intermittent events can be caused by bad connections, dust, dirt, corrosion, or simply broken wiring or connectors. Line outages, dips, swells and interruptions, or the starting and stopping of a motor can also cause a machine to stop. You may not be around when it happens, but the 190 Series III ScopeMeter Test Tool will be.
- Plot minimum and maximum peak values and average over time
- Plot any combination of up to four readings including voltages, amps, temperature, frequency and phase for all inputs, all with time and date stamp to pinpoint faults
Accurate and versatile, this portable oscilloscope provides a fast sampling rate of up to 5 GS/s, a 200 ps resolution, and deep memory of 10,000 samples per channel. Perform timing or amplitude-related measurements on three phases or three-axis control systems, or compare and contrast multiple test points in a circuit under test.
- Up to four independent floating isolated inputs, up to 1000 V
- Up to 5 GS/s real time sampling (depending on model and channels used)
- Deep memory: 10,000 points per trace waveform capture (scope mode)
- CAT III 1000 V/CAT IV 600 V safety rated instrument for industrial environments
- Up to seven hours of battery operation using BP291
- Large, bright color display is easy to view in nearly any environment
- Easy to store and view historical data and transfer to a PC via USB or Wifi
- Convenient battery access door for quick battery swaps in the field
- IP51 rating, dust and drip-proof
- Connect-and-View triggering for intelligent, automatic triggering on fast, slow and even complex signals
- Frequency spectrum using FFT-analysis
- Automatic capture and REPLAY of 100 screens
- ScopeRecord mode gives 30,000 points per input channel for low frequency signal analysis
- TrendPlot Paperless Recorder mode with deep memory for longterm automatic measurements
- 5000 count DMM included in the 2-channel models
Applications
- Microelectronics
- Troubleshooting
Measure from mV to kV safely
Independently isolated inputs allow you to make measurements in mixed circuits having different ground references reducing the risk of accidental short circuits. Conventional bench oscilloscopes without special differential probes and isolation transformers can only reference measurements to line power earth ground. ScopeMeter 190 Series III test tools are engineered to cover a wide application range from mV to kV, so you’re ready for anything from microelectronics to heavy duty higher voltage electrical applications. 190 Series III 60 MHz and 100 MHz configurations include VPS421 100:1 probes for higher voltage applications, while the 200 MHz and 500 MHz configurations include VPS410-II 10:1 probes suitable for both microelectronics and higher voltage applications.
IP-51 rated for harsh environments
Rugged and shock-proof, ScopeMeter Test Tools are built for dirty, hazardous environments. With its sealed case, it can endure dust, drips, humidity and airborne pollutants. Every time you reach for ScopeMeter Test Tool you can be confident it will work reliably wherever your work takes you.
USB and Wi-Fi connectivity
The Fluke 190 Series III offers two USB ports, electrically isolated from measurement input circuits allowing you to quickly and easily transfer data to a PC, archive and share waveforms with OEMs, colleagues and support staff, or store waveforms, screen captures and instrument setups onto USB memory devices for later use. Easily transfer saved files via USB stick, direct connection via the USB interface or optional Wi-Fi connectivity. These files can be used for further data handling or in FlukeView-2 Software to study waveforms in greater detail.
Connect-and-View triggering
Connect-and-View triggering provides an instant, stable display without the need for adjusting settings. If you’ve used other scopes, you know how tricky triggering can be. If settings are incorrect, results can be unstable or incorrect. Connect-and-View automatically sets up correct triggering by recognizing signal patterns. Without touching a button, you get a stable, reliable and repeatable display of virtually any signal including motor drive and control signals. It’s especially fast and convenient when you’re measuring a number of test points in rapid succession.
Built-in digital multimeter
Conveniently switch from waveform analysis to precise multimeter measurements using the built in 5000 count digital multimeter on two channel 190 Series III models. Measurement functions include Vdc, Vac, Vac+dc, resistance, continuity and diode test. Measure current and temperature using suitable shunt, probe or adapter with wide range of scaling factors.
TrendPlot paperless recorder— records up to 11 days to help you find intermittent faults
The toughest faults to find are those that happen only once in a while. These intermittent events can be caused by bad connections, dust, dirt, corrosion, or simply broken wiring or connectors. Line outages, dips, swells and interruptions, or the starting and stopping of a motor can also cause a machine to stop. You may not be around when it happens, but the 190 Series III ScopeMeter Test Tool will be.
- Plot minimum and maximum peak values and average over time
- Plot any combination of up to four readings including voltages, amps, temperature, frequency and phase for all inputs, all with time and date stamp to pinpoint faults
Save time with precise infrared levels and analysis
Whether you're on the roof checking heating, ventilation and air conditioning, deep in the factory checking motors, or if you've locked down the electrical panels, you rely on a tool that has the power and features to do the job quickly.
The Fluke TiS20+ and TiS20+ MAX handheld thermal cameras put the power of thermal imaging at your fingertips. Designed to make your job faster and easier, this thermal imager is the perfect tool for:
- Commercial electrician
- Heating, ventilation, air conditioning and refrigeration technician
- Maintenance technician
Get context with a combination of visual light and infrared images
In thermography, context is important. Let Fluke IR-Fusion™ make your job easier by using a thermal image superimposed on a visual light image to provide a complete picture of where an issue is a problem before it actually becomes a problem. Just slide your finger across the screen to adjust the infrared level. Whether you're experiencing an uneven load on your switchgear or checking your ventilation system, the Fluke TiS20+ helps you quickly detect issues.
You work hard all day, your tools too
You must not let your thermal imager be damaged by the environment. You can sleep well at night knowing that your camera will stand up to whatever the day throws at it.
- 2 meter high drop test
- Waterproof (IP54)
- Dustproof (IP54)
Stop sorting, start analyzing with Fluke Connect Asset Tagging
Avoid long hours on the computer setting up your thermal images, let Asset Tagging do all the work for you. No more dragging and dropping or renaming files in the office, just scan the QR code on your assets, take thermal images and they are automatically sorted by assets. Start spending your time analyzing images and creating reports instead of sorting files one by one.
Longest battery life in a Fluke thermal camera
The TiS20+ and TiS20+ MAX work non-stop, with a battery life of over 5 hours of continuous use making it the longest battery life in a Fluke thermal camera. Save battery power for multiple inspection points with sleep mode. Just press the power button once and you are ready to go.
Whether you're on the roof checking heating, ventilation and air conditioning, deep in the factory checking motors, or if you've locked down the electrical panels, you rely on a tool that has the power and features to do the job quickly.
The Fluke TiS20+ and TiS20+ MAX handheld thermal cameras put the power of thermal imaging at your fingertips. Designed to make your job faster and easier, this thermal imager is the perfect tool for:
- Commercial electrician
- Heating, ventilation, air conditioning and refrigeration technician
- Maintenance technician
Get context with a combination of visual light and infrared images
In thermography, context is important. Let Fluke IR-Fusion™ make your job easier by using a thermal image superimposed on a visual light image to provide a complete picture of where an issue is a problem before it actually becomes a problem. Just slide your finger across the screen to adjust the infrared level. Whether you're experiencing an uneven load on your switchgear or checking your ventilation system, the Fluke TiS20+ helps you quickly detect issues.
You work hard all day, your tools too
You must not let your thermal imager be damaged by the environment. You can sleep well at night knowing that your camera will stand up to whatever the day throws at it.
- 2 meter high drop test
- Waterproof (IP54)
- Dustproof (IP54)
Stop sorting, start analyzing with Fluke Connect Asset Tagging
Avoid long hours on the computer setting up your thermal images, let Asset Tagging do all the work for you. No more dragging and dropping or renaming files in the office, just scan the QR code on your assets, take thermal images and they are automatically sorted by assets. Start spending your time analyzing images and creating reports instead of sorting files one by one.
Longest battery life in a Fluke thermal camera
The TiS20+ and TiS20+ MAX work non-stop, with a battery life of over 5 hours of continuous use making it the longest battery life in a Fluke thermal camera. Save battery power for multiple inspection points with sleep mode. Just press the power button once and you are ready to go.
Widest temperature range available in a single dry-well
• Combined range from –30 °C to 670 °C, one unit – two blocks
• Two independent temperature controllers (hot and cold side)
• Stability to ±0.02 °C
• Multi-hole wells for calibrating up to eight probes simultaneously
To give you the widest temperature range available in a dry-well calibrator, we’ve combined two of our most popular units. The 9011 allows temperature probes to be calibrated from –30 °C to 670 °C in a single unit.
• Combined range from –30 °C to 670 °C, one unit – two blocks
• Two independent temperature controllers (hot and cold side)
• Stability to ±0.02 °C
• Multi-hole wells for calibrating up to eight probes simultaneously
To give you the widest temperature range available in a dry-well calibrator, we’ve combined two of our most popular units. The 9011 allows temperature probes to be calibrated from –30 °C to 670 °C in a single unit.