instrulab.co | Temperature Measuring, Temperature Monitoring, Sensors
There are a number of factors to consider when purchasing a dry block calibrator. These instruments are large investments and serve an important purpose, so it’s important that you take your time to make sure you choose the right one.
The calibration of your dry block calibrator must be set before you can use it. This calibration, typically set by the manufacturer, helps determine the accuracy of your instrument. In other words, if the device is improperly calibrated, then it will provide inaccurate measurements. To ensure accuracy, make sure the device is calibrated by a laboratory that uses reference thermometers traceable to the National Institute of Standards and Technology (NIST).
Stability is another important factor to consider when buying a dry block calibrator. If the device is unable to maintain a stable temperature around its programmed set point, this could cause major errors in measurement.
Removable sleeves are often used for dry blocks that don’t fit properly into holes; however, if he insert only has one well/hole, it reduces the contact between the block and the device, negatively affecting the calibration reading’s accuracy. A dry block with a multi-well insert allows multiple sensors to be calibrated at the same time. This helps ensure accurate calibration, even at significant depths.
Dry block calibrators with a smaller size and weight are easier to transport to test sites. Also consider other factors that affect portability, such as whether the calibrator has a carrying strap.
As with any major purchase, price is always an important consideration. Make sure the device is priced reasonably for your budget and for the features it provides. Also make sure you understand the prices for different options and inserts, which can add to the base price.
Instrulab’s Model CAL 400 Dry Block Calibrator
Instrulab’s Model CAL 400 should definitely be at the top of your list when considering dry block calibrators. This dry block calibrator provides optimal accuracy, stability, and well flexibility, while it is also highly portable and offered at a reasonable price. Here are some key specs:
- NIST-traceable calibration
- Excellent stability:
After 15-minute warm up Short term stability
at 200°C ±0.03°C ±0.01°C
at 400°C ±0.05°C ±0.0.015°C
- Display accuracy and resolution:
at 200°C ± 0.3°C, 0.1° resolution
at 400°C ± 0.5°C, 0.1° resolution
- Small size: 7.75” x 8” x 8″”
- Light weight: 9.0 lbs.
- Economical price: $1,995 includes multi-well insert, exactor and carrying strap (additional inserts are $150 each)
Give Instrulab a call or visit the information page for the CAL 400 for more information on this device, including specifications and pricing for options.
At Instrulab Industries, we are renowned for being experts in temperature measurement and temperature data collection instruments. The Model 310 Thermistor is an instrument that lives up to our reputation for excellence.
The Instrulab 310 is a handheld thermistor temperature monitor. This instrument provides accurate field temperature measurement across virtually any environment you might encounter. Some of its convenient features include a large, stable, backlit LCD display with contrast adjustment (backlight can be timed to prevent unnecessary battery drain); the ability to store up to 100 calculated data sets, eliminating errors in copying, interpolation or logging; and password protection to prevent accidental or intentional data tampering.
Additionally, the 310 comes with features that enhance its portability and versatility. These include a multifunction stand, allowing it to be used on the bench, hanging from a lanyard strap, or hanging from a wall. In addition, it has an optional carrying case to protect the instrument and sensor during transport. The case also provides a place to store the manual, so that you can keep this important information with the device.
Here are some key specs for the 310:
- Measures to 0.001°C resolution
- 0.01°C accuracy
- Temperature ranges from -5°C to +105°C (equivalent °F or K programmable)
- Easy two-step calibration
- Records minimum, maximum, average, date, location and last reading with timestamp; up to 100 samples, standard (not an extra-cost option)
- RS232 serial port for data upload or download of coefficients and commands
- 7-hour nickel-metal-hydride battery (AC adapter/charger included)
- Works with YSI 400 series or equivalent (2252 Ω @25°C) sensors
- Stores up to 4 sets of sensor constants
- Weighs 1 lb. (0.45 kg)
- Price starts at $1,195
Various options are available. Please contact our sales department so we can help you choose the perfect instrument and options for your specific application. In addition to thermistor temperature monitors such as the Model 310, we also offer a wide range of thermistor sensors to meet your application needs.
Think Instrulab’s Model 4312A thermometer might be right for you? Keep reading to learn all about this device and determine if it can meet your needs.
The Model 4312A Platinum RTD System Thermometer is a multi-channel system thermometer. Each input channel of this versatile, 12-channel instrument can be individually programmed to a specific sensor, with each channel characterized for scan/skip, sensor calibration, units, and resolution. All functions and setup programming are accessed via the front panel keypad and display using a computer-like menu.
The device can operate in one of four modes:
- As a temperature monitor
- As a calibrator
- As a standalone system
- As an intelligent front-end for a PC
Some features provided by the instrument are as follows:
- 0.001° resolution
- 0.010°C to 200°C and 0.015°C to 500°C instrument accuracy
- Display in °C, °F, K, and ohms
- User programmable coefficients
- 200 measurements per channel memory storage
- Interface/output options:
- RS-232C interface
- IEEE-488 interface
- Parallel printer output
- Analog output
- Auto print/transmit
- Battery backed-up memory
- NIST (NBS) traceable (Recommended recalibration: 1 year)
- 2 line by 40 character backlit LCD display
- 100 ohm Platinum RTD sensor
- < 1 minute to rated accuracy warm-up time
One way the 4312A differs from the 3312A (another of Instrulab’s multi-channel system thermometers) is that it offers a greater temperature measurement range of -308°F to +932°F (-189°C to +500°C), compared with the 3312A’s range of 23°F to 221°F (-5°C to +105°C).
The standard model will operate on 115V or 230 VAC ±10% 60 Hz, or 50 Hz with the insertion of diode CR15. (Line voltage is selectable on the rear panel.)
If option 06 is purchased with the instrument, rack-mounting adapters will be installed at the time the instrument is assembled.
Prices for Instrulab’s multi-channel system thermometers start at $2,800. Free data gathering software is available.
To see further technical specifications for the Model 4312A and detailed information about the device’s functions, refer to the device manual.
Temperature uniformity is important in a number of industries, including the chemical industry, the medical industry, and many others. Thus, the systems designed to ensure temperature uniformity, including temperature measuring and control instruments, are vital to these industries.
Such systems must be calibrated to exact specifications. Most firms will rely on an outside organization to provide and maintain this sensitive equipment, and if your business relies on temperature uniformity, it’s important that you are able to trust your temperature control system provider to provide precise temperature measurements and controls.
One way of ensuring an organization and its equipment can be trusted to provide accurate temperature measurements and precise temperature uniformity is an industry-wide certification. The certification relevant to temperature equipment calibration laboratories is the ISO/IEC 17025:2005 (sometimes shortened to ISO 17025 or ISO/IEC 17025) accreditation. This Internal Organization for Standardization standard applies directly to organizations that produce calibration and testing results.
A laboratory that adheres to this standard can be trusted to produce valid results, thereby ensuring their equipment can be safely used for temperature uniformity purposes. Specifically, an ISO 17025 accreditation tells you a couple important things about a calibration laboratory:
- They consistently produce correct and reliable results/calibrations.
- They operate an effective quality management system within the laboratory.
In addition to laboratory customers, regulatory authorities and accreditation bodies may also use ISA/IEC 17025 to identify competent laboratories, according to the ISO. It’s important to note that ISO 17025 certification is relevant to all temperature testing and/or calibration laboratories, regardless of the scope of testing and/or calibration activities, organization size, number of personnel, etc.
At Instrulab Inc., we take our ISO/IEC 17025:2005 certification seriously, as we supply, calibrate, troubleshoot, update, and repair industrial temperature measuring and control instruments. In addition to in-house calibration and repair, we offer mobile calibration services, including probe checks, calibration and certification of temperature equipment, uniformity surveys, and more. View our ISO/IEC 17025 accreditation certificate and learn more about our temperature control systems and calibration services at instrulab.com.
Instrulab Inc., your trusted temperature specialist since 1948, is currently running a web special. As part of this special, you can get the following special pricing on upgrades and trade-ins:
- Get a 25 percent discount on any of these new units – 4200C, 3213A, or 4312A – when you trade in any of your old Instrulab temperature monitors.
- Get a 20 percent discount on our new 410 handheld unit when you trade in any of your old Instrulab temperature monitors.
- Get a 20 percent discount on any new RTD or special thermistor unit with a trade-in. (In many cases, your present sensors can be recalibrated and still used.)
- Have us upgrade 4200 models manufactured prior to 1999 (without suffix C) to the latest version.
Here are some details on the units included in the special:
Model 410 Handheld RTD Temperature Monitor – Accurate field temperature measurement in almost any environment; stable, large, backlit LCD display with contrast adjustment; display timed to prevent unnecessary battery drain; ability to store calculated data sets and parameters; multifunction stand; password protection; temperature range of -196°C to 660°C.
Series 4200C RTD Temperature Monitors – Measurement to 0.004°C system accuracy; resolution to 0.0001Ω; temperature range of -220°C to +962°C; single and dual channel, ΔT (T1-T2); accepts 10Ω, 25.5Ω, and 100Ω Platinum RTDs; choice of calibrated sensors.
Model 4312A Multichannel RTD Temperature Monitor – 12 individually programmable channels; accuracy to 0.01°C with 0.001° resolution; temperature range of -189°C to +500°C; readout in °C, °F, K and Ω; three different modes of operation (as a temperature monitor, as a data recorder, and as an intelligent front-end for your PC); choice of calibrated RTD sensors.
Model 3312A Multichannel Thermistor Temperature Monitor – 12 individually programmable channels; accuracy to 0.01°C with 0.001° resolution; temperature range of -5°C to +105°C; operates as a temperature monitor, data recorder, or intelligent front-end for your PC; choice of 400 Series Thermistor sensors.
For detailed pricing information, call sales at 800-241-2241 or 937-223-2241 or email us at firstname.lastname@example.org.
Instrulab Inc. are experts in the measurement and collection of temperature data, offering some of the highest quality temperature-measuring equipment in the world. One type of temperature equipment we specialize in is thermistors. When it comes to thermistors, Instrulab’s YSI Series 400 Thermistor Sensors are in a class all their own. Learn more about this special temperature sensor equipment and what it can do for you.
First, it is important to note that these sensors can be used with any instrument that uses YSI Series 400 sensors. They are ideal for use with the Model 310 handheld thermistor or the 3312 Series multichannel instruments.
These Series 400 sensors can be calibrated for standard, spot, or custom calibration, depending on the accuracy and temperature range you need. Series 400 Thermistor Probes also offer the exclusive feature of “true interchangeability” between probes. These probes use temperature-sensing elements that are precision thermistors manufactured with matching temperature/resistance characteristics. Here are some more specs:
- Standard off-the-shelf accuracy for models 405 and 409 are ±0.100°C from 0°C to 70°C and ±0.210C at 100°C.
- Accuracy can be improved to ±0.030°C with custom calibration.
- Accuracy over a narrow range to ±0.020°C with spot calibration over a narrow ( ±5°C) temperature range.
- All probes have 10-foot, vinyl-covered shielded wire. (Water-resistant junctions between probe and lead wire should not be immersed.)
We also offer super-stable thermistors for applications that require the readings to be extremely stable over an extended time. Additionally, we can provide any standard YSI 400 Series thermistor, 2252 ohms @ 25ºC.
For more information on these instruments, including the differences between models, more specs on calibration modes, calibration accuracy, stability, and probe configurations, as well as information on how to order, check out the YSI Series 400 Thermistor Sensors user manual on the Instrulab website.
Instrulab, Inc. is accredited to the ISO/IEC 17025 standard for Calibration by the Laboratory Accreditation Bureau. Why is this accreditation important? It is a formal recognition of Instrulab’s competence and ability to produce consistently valid results.
The ISO/IEC 17025 standard is the main ISO/CASCO (International Organization for Standardization Committee on Conformity Assessment) standard used by testing and calibration laboratories worldwide. The accreditation certifies that a laboratory demonstrates technical competence and has a documented quality management system.
Not all calibration laboratories are accredited. Some of the advantages of an accredited ISO ISO/IEC 17025 laboratory include the following:
- Establishes laboratory’s technical competency and result reliability
- Improves laboratory’s quality awareness, workmanship, environment control, instrument maintenance, and test record preservation
- Allows straightforward comparison of suppliers in different countries
- Eliminates need for supplier auditing (accreditation process independently verifies calibration suppliers)
- Offers further information on the quality of each calibrated measurement
The standard itself includes five separate elements: Scope, Normative References, Terms and Definitions, Management Requirements, and Technical Requirements. Management Requirements and Technical Requirements are the main sections of the calibration accreditation. Management Requirements primarily have to do with the effectiveness of the laboratory’s quality management system, while Technical Requirements are related to the reliability and correctness of calibrations and other tests the laboratory performs.
Significant changes introduced since the standard was first published in 1999 include an increased emphasis on senior management responsibilities, and specific requirements for communication with the customer and for continual improvement of the quality management system.
The Laboratory Accreditation Bureau (L-A-B), which issued Instrulab’s ISO/IEC 17025 certification, is a laboratory accreditation division of the Accreditation Services Bureau. L-A-B is specified by regulators for the delivery of ISO/IEC 17025 accreditation.
When considering giving your business to a company that sells and repairs advanced calibration instruments, it’s important to make sure that the organization is ISO/IEC 17025-certified. Find Instrulab, Inc.’s Certificate of Accreditation here.
If you’re looking for accurate field temperature measurement for almost any environment, Instrulab’s new Model 410 Handheld RTD Temperature Monitor is the resistance thermometer for you. This product offers a number of features and functions that make it an ideal handheld RTD for precise temperature data collection.
Some notable characteristics of this device include its large, backlit LCD display, which is timed to prevent unnecessary battery drain. It is also able to store calculated data sets and other necessary parameters, eliminating copying, interpolation or logging errors. Additionally, the thermometer offers password protection to protect against accidental or intentional data tampering.
The device has a multifunction stand, allowing for tilt, lanyard, and wall mounting. The optional carrying case protects the instrument and sensor during transportation, while also offering a place to store the manual. The 410 handheld model has an optional probe as well.
Some key attributes include the following:
- ITS-90 coefficients may be stored for up to 4 RTD sensors
- Up to 100 data sets may be stored, including min/max/average/date/location and last reading with time stamp
- RS232 serial port for data upload or download of coefficients and commands
- 7-hour nickel-metal-hydride battery (AC adapter/charger included)
- Temperature Range: -196°C to 660°C (equivalent °F or K programmable)
- Instrument Uncertainty: +0.020°C at 23° +5°C ambient (used with 100 ½ sensors) +0.046°F at 23° +5°C ambient (used with 100 ½ sensors) +0.008 ½ from 0 to 340.000 ½
- Temperature Resolution: 0.01°C (-196° to –100°C), 0.001°C (-100° to 660°C) and equivalent °F and K ranges. (Note: 0.01°C full range resolution is also programmable)
For more information on the Model 410 Handheld RTD Temperature Monitor, including complete system specifications, visit the information page for this product. Instrulab also offers several other types of RTD sensors for temperature data collection, which you can find at Instrulab.com.
Thermistors and thermocouples are both specialist instruments that are used to measure temperature in various environments, some very cold and some very hot. While they are very different instruments, both must be accurately calibrated to ensure the results are as precise as possible.
Thermistors are thermal resistors that are sensitive to temperature. When temperature changes in a specific environment, the resistance of the thermistor changes in a predictable way, enabling us to measure that change. So, provided the thermistor is properly calibrated, the changes in electrical resistance are accurately translated into a measure of temperature change.
Thermistors are ideal for detecting minimal temperature changes, and are the instrument of choice for identifying liquid levels and air flow, and for measuring thermal conductivity. They are commonly used to measure the heat inside computers, to prevent overheating. They are also used in microwave ovens.
They can generally be calibrated for standard, custom or spot temperature measurement. Standard off-the shelf thermistors will be able to measure at very least from 0 ºC to 100 ºC, with accuracy ranging from about 0.1 ºC to 0.21 ºC for higher temperatures. Custom and spot calibration will improve accuracy from 0.03 ºC to 0.02 ºC respectively. Some thermistors can measure temperature from as low as -100 ºC to 300 ºC and even higher.
Thermistor sensors are reasonably inexpensive, and may be used with various instruments, including multichannel models and those that are handheld. Typically, a thermistor sensor will have a protected probe (for instance shielded wire covered with vinyl) and will be water resistant. Junctions between the wire and probe should not be immersed in water.
Thermocouples are inexpensive and known to be “rugged” and reasonably reliable. They measure temperature quickly over a wide range, but are less stable and less accurate than thermistors.
Thermocouples are made from two different types of metal. A difference in temperature will develop a voltage along the length of wires in a temperature gradient. This enables us to read the temperature.
Thermocouples are made with different combinations of metal, and with different calibrations that are suitable for different temperature ranges and environments. The maximum temperature will also depend on the diameter of the wire used; the thicker it is, the more versatile it will be.
Across the board, thermocouples are commonly calibrated to measure temperature from -250 ºC to as much as 1,250 ºC. Limits of error range from 0.4% to 0.75% (1.0 ºC to 2.2 ºC). These calibrations are indicated by the letters J, K, T and E, but higher temperature calibrations are possible. Since these instruments tend to decalibrate while in use, it is important to have them calibrated regularly.
Thermocouples are used to measure temperature in both household and industrial applications. They are commonly used for thermometers (food and human), as a safety feature in some gas appliances (water heaters, ovens etc) and even for diagnostic testing of automobile engines.
Temperature calibrators are portable precision instruments that give quick, accurate readings. Generically, they can read temperatures from –100 °C to 1,205 °C, depending on the type of calibrator that is used, and the environment in which it is required to do the reading.
Instrulab manufactures stable, highly accurate instruments including platinum RTD (resistance temperature detectors) and thermistors, all of which meet the ISO/IEC 17025 requirements.
They also offer temperature calibration services of sensors as well as most instruments that are used to measure temperature. Instrulab calibration conforms to the National Institute of Standards and Technology (NIST) ITS-90 regulation. This means that measuring instruments they calibrate may be safely used as a reference when working to the all-important ISO-9000.
RTDs are precision instruments that are accurate, though fragile and expensive. They are invaluable in most industrial applications that operate below a temperature of 600 °C, and most instruments of this type can be used to accurately measure temperature as low as –250 °C and as high as 850 °C.
Instrulab RTDs generally operate from –200 °C to more than 400 °C, and offer an accuracy reading from about 0.01 °C, depending on the specific sensor that is being used.
While not as costly as RTDs, thermistors are the preferred instruments for identifying less obvious temperature changes, particularly where the change element, rather than the temperature itself, is important. In other words, they are particularly valuable tools used to gauge how much temperature rises or falls in a specific environment.
Instrulab has a range of instruments that meets varied needs, including spot calibration at a given temperature. These instruments operate from –0 °C to about 100 °C, and they have an accuracy reading around 0.02 °C. In addition to Celsius or Centigrade readings, they also give readings in Fahrenheit.