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Home / Oven Temperature Instruments Buying Guide

Oven Temperature Instruments Buying Guide

In today’s world, consistent and accurate temperature control is crucial for the curing of industrial coatings. The PosiTest OTL Oven Temperature Logger is designed to address this need by measuring and recording temperature profiles within your oven. This guide will delve into the features of the PosiTest OTL, explaining how it can ensure quality and consistency in your temperature-sensitive applications.

Name Best Scenarios Benefits Disadvantages Options Product Page
PosiTest OTL Oven Temperature Logger
  • Records oven temperatures and verifies proper curing with features like data storage, a cure index, and a durable build
  • Accurate: The DeFelsko® PosiTest® OTL ensures proper curing in various processes by monitoring and recording oven temperatures
  • Data Storage & Accesibility: It offers extensive data storage (up to 40,000 datasets) for thorough analysis, allowing you to track temperature variations over multiple runs
  • Quality Assurance/Control: The Cure Index verifies parts undergo proper cure based on supplier specifications, helping to maintain quality and consistency
  • Application Limitations: Not suitable for all oven temperatures/curing time frames
  • OTL Logger Kit w/ Standard Temperature Holder
  • OTL XT Logger Kit w/ High Temperature Holder
  • Logger Only
Temperature Probes for PosiTest OTL
  • Accurate and versatile for measuring temperatures – extend the reach of the OTL
  • Accurate & Reliable Measurements: Ensure precise temperature data for quality control, process monitoring, and research & development
  • Durable Stainless Steel Cables: Withstand harsh environments like industrial settings and laboratories
  • Multiple Length Options (6ft, 12ft, 20ft): Provide flexibility for various applications, reaching tight spaces, large areas, or sensitive environments
  • Compatibility with PosiTest® OTL: Extend the functionality of your oven temperature logger for comprehensive temperature profiling
  • Sold Separately: Additional cost
  • Applications.  Available in both Surface and Air types
  • Mountings.  Available in Magnetic, Clamp, and Washer mounts
  • Lengths.  Stainless braided cables commonly stocked in 3 lengths, and custom lengths available by special order
Engraved ID Tags for PosiTest OTL
  • Easily keep track of which temperature probe is collecting which data to avoid confusion and ensure accurate readings
  • Clear Probe Identification: Easy to see which probe is collecting which data, reducing confusion and errors
  • Higher Precision: Reduces the risk of mixing up data from different probes, leading to more accurate results
  • Durability: Built to withstand harsh environments, so they remain legible over time
  • Limited Reusability: Engraved tags may not be easily reusable if probe assignments change frequently
  • Potential Cost: An additional expense on top of the initial probe cost
  • Physical Attachment: Requires manual attachment to each probe, which may add time to the setup process
PosiTest OTL Oven Temperature Logger Temperature Probes for PosiTest OTL Engraved ID Tags for PosiTest OTL
Best Scenarios
  • Records oven temperatures and verifies proper curing with features like data storage, a cure index, and a durable build
  • Accurate and versatile for measuring temperatures – extend the reach of the OTL
  • Easily keep track of which temperature probe is collecting which data to avoid confusion and ensure accurate readings
Benefits
  • Accurate: The DeFelsko® PosiTest® OTL ensures proper curing in various processes by monitoring and recording oven temperatures
  • Data Storage & Accesibility: It offers extensive data storage (up to 40,000 datasets) for thorough analysis, allowing you to track temperature variations over multiple runs
  • Quality Assurance/Control: The Cure Index verifies parts undergo proper cure based on supplier specifications, helping to maintain quality and consistency
  • Accurate & Reliable Measurements: Ensure precise temperature data for quality control, process monitoring, and research & development
  • Durable Stainless Steel Cables: Withstand harsh environments like industrial settings and laboratories
  • Multiple Length Options (6ft, 12ft, 20ft): Provide flexibility for various applications, reaching tight spaces, large areas, or sensitive environments
  • Compatibility with PosiTest® OTL: Extend the functionality of your oven temperature logger for comprehensive temperature profiling
  • Clear Probe Identification: Easy to see which probe is collecting which data, reducing confusion and errors
  • Higher Precision: Reduces the risk of mixing up data from different probes, leading to more accurate results
  • Durability: Built to withstand harsh environments, so they remain legible over time
Disadvantages
  • Application Limitations: Not suitable for all oven temperatures/curing time frames
  • Sold Separately: Additional cost
  • Limited Reusability: Engraved tags may not be easily reusable if probe assignments change frequently
  • Potential Cost: An additional expense on top of the initial probe cost
  • Physical Attachment: Requires manual attachment to each probe, which may add time to the setup process
Options
  • OTL Logger Kit w/ Standard Temperature Holder
  • OTL XT Logger Kit w/ High Temperature Holder
  • Logger Only
  • Applications.  Available in both Surface and Air types
  • Mountings.  Available in Magnetic, Clamp, and Washer mounts
  • Lengths.  Stainless braided cables commonly stocked in 3 lengths, and custom lengths available by special order

Product Specifications

LOGGER KITS COME with temperature logger, stainless steel high temperature barrier box, choice of holder, 6 engraved probe ID tags, two AAA batteries, instructions, Long Form Certificate of Calibration traceable to NIST, carrying case, USB cable, PosiSoft Desktop software, and two year warranty.

LOGGER ONLY COMES with temperature logger, two AAA batteries, instructions, Long Form Certificate of Calibration traceable to NIST, USB cable, PosiSoft Desktop software, and two year warranty.

Specifications
Information
Channels
6 K-type non-grounded thermocouples
Thermocouple Measurement Range
-148 to 1832°F (-100 to 1000°C)
Logger Accuracy
±0.9° F (±0.5° C)
Resolution
0.1° F (0.1° C)
Memory
40,000 Datasets. Each Dataset consists of up to 6 channels
Sample Interval
2 seconds (Fixed) Maximum recording time is 22 hours
Power Source
2 AAA batteries
Battery Life
30 hours (recording time)
Size
12 x 10 x 6 in (30.5 x 25.5 x 15 cm)
Weight*
20 lbs (9 kg)

* Weight includes the PosiTest OTL Holder, and Barrier Box. Holder XT increases weight to 11 kg (25 lbs.)

Kit Configurations

The PosiTest OTL is available in two kit configurations or as a standalone logger. The PosiTest OTL XT features an enhanced holder with heatsink for greater endurance at high temperatures.

PosiTest OTL Kit    PosiTest OTL XT Kit
Temperature
PosiTest OTL
PosiTest OTL XT
150° C (302° F)
90 minutes
300 minutes
200° C (392° F)
65 minutes
200 minutes
250° C (482° F)
50 minutes
140 minutes
300° C (572° F)
not recommended
100 minutes

The chart and table above represent the combined thermal characteristics of the PosiTest OTL, Barrier Box and choice of Holder/Holder XT.

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Frequently Asked Questions

  • What is the temperature range on the Logger Only?

    The PosiTest OTL without holder or barrier box can withstand a temperature range of 0 to 70° C (32 to 158° F).

  • What temperature probes are available?

    Wide variety of surface and air temperature probes available with 1.8, 3.6, or 6 m (6′, 12′, or 20′) stainless steel braided cable (not included). Visit the product detail page to learn more.

  • Is the PosiTest OTL calibrated at the factory?

    The PosiTest OTL arrives fully calibrated and ready to measure. A Long-Form Certificate of Calibration traceable to NIST is included, which documents actual readings taken by your instrument at our calibration laboratory on standards traceable to a national metrology institute. Beware of ‘Certificates’ or ‘Certificates of Conformance’ offered by competitors. These typically do not include actual instrument readings, and are often insufficient to meet common quality requirements.

  • How often should the PosiTest OTL be recalibrated?

    The PosiTest OTL and K-type thermocouple Temperature Probes are calibrated at the factory — with no expiry or end date. They have no shelf life; therefore the length of time in use is not a good indicator for recalibration intervals.

    Many organizations with quality programs and recertification programs require annual recalibrations, and this is a good starting point for most users. DeFelsko recommends that customers establish calibration intervals based upon their own experience and work environment. Based on our product knowledge, data, and customer feedback, a one year calibration interval from the date the instrument was placed in service is a good starting point.

  • Can PosiTest OTL temperature probes be re-certified?

    No. Due to the lengthy calibration process, it is more economical for the PosiTest OTL temperature probes to be replaced if required.

  • What's the difference between the PosiTest OTL Kit and the PosiTest OTL XT Kit?

    The PosiTest OTL is available in two configurations. The PosiTest OTL XT Kit features an enhanced holder with heatsink for greater endurance at high temperatures.

  • What types of temperature probes are available?

    A wide variety of spring clamp and magnetic temperature probes are available with either 1.8, 3.6, or 6 m (6’, 12’, or 20′) stainless steel braided cables for testing air or surface temperatures. Each temperature probe includes a Certificate of Calibration traceable to NIST.

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