DeFelsko PosiTest OTL Oven Temperature Logger
Bright LEDs indicate logger status at a glance
Certificate of calibration showing traceability to NIST included
Measures and records oven temperature profiles
- The DeFelsko PosiTest OTL Oven Temperature Logger measures and records up to 40,000 datasets (240,000 readings) into 6 independent batches
- High temperature stainless steel barrier box with fiberglass insulation for long run times at high temperatures. Contains no silicone.
- 6 K-type thermocouple ports (channels)
- Download, view, and analyze batch data using PosiSoft Desktop Software. Export .CSV files for easy import into spreadsheets.
- Wide variety of probes available with 1.8 or 3.6 m (6' or 12') stainless steel braided cables (sold separately)
Kit Contents
The DeFelsko PosiTest OTL Oven Temperature Logger Kit includes everything needed for testing:
- PosiTest OTL Oven Temperature Logger
- stainless steel high temperature barrier box
- Choice of holder
- 6 engraved probe ID tags
- 2 AAA batteries
- PosiSoft Software and USB cable
- Long Form Certificate of Calibration traceable to NIST
- Carrying case and instructions
- Two (2) year warranty
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Features
- Simple, easy-to-use interface
- 6 K-type thermocouple ports (channels)
- Measures and records up to 40,000 datasets (240,000 readings) into 6 independent batches
- Records measurements every 2 seconds for up to 22 hours of recording time
- Download, view, and analyze batch data using PosiSoft Desktop Software. Export .CSV files for easy import into spreadsheets.
- Bright LEDs indicate logger status at a glance
- High temperature stainless steel barrier box with fiberglass insulation for long run times at high temperatures. Contains no silicone.
- Certificate of calibration showing traceability to NIST included
Specifications
| Channels | 6 K-type non-grounded thermocouples |
| Thermocouple Measurement Range | -100 to 1000ºC
-148 to 1832ºF |
Logger Operating Temperature Range
PosiTest OTL without Holder or Barrier Box | 0 to 70º C
32 to 158º F |
| Logger Accuracy | ±0.5º C
±0.9º F |
| Resolution | 0.1º C
0.1º F |
| 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 | 48 x 35 x 19 mm
(19" x 14" x 7.5") |
| Weight* | 9 kg (20 lbs.) |
* Weight includes the PosiTest OTL Holder, and Barrier Box. Holder XT increases weight to 11 kg (25 lbs.)
Comparison Chart
The PosiTest OTL is available in two configurations. The PosiTest OTL XT features an enhanced holder with heatsink for greater endurance at high temperatures
| Temperature | PosiTest OTL
(OTLKIT) | PosiTest OTL XT
(OTLKITXT) |
| 150º C (302º F) | 90 minutes | 300 minutes |
| 200º C (392º F) | 65 minutes | 200 minutes |
| 250º C (482º F) | 50 minutes | 140 minutes |
| 300º C (572º F) | not recommended | 100 minutes |
| PosiTest OTL Kit | PosiTest OTL XT Kit | |
The chart and table above represent the combined thermal characteristics of the PosiTest OTL, Barrier Box and choice of Holder/Holder XT.
PosiSoft Desktop
FREE powerful desktop software (PC/Mac) for downloading, viewing, printing, and storing measurement data.
Add batch annotations, label individual channels, set threshold temperatures, and compare datasets to reference batches. Includes a customizable, templated PDF Report Generator. No internet connection required.
- Customizable PDF Report Generator
- Graph Readings for up to 6 channels and compare to stored reference profiles
- Store optimal cure reference profiles to compare measurement results
- Select one or more reference channels to plot alongside measurement data
- Start At Temperature sets the time to 00:00 when the selected channel reaches the threshold temperature, making it easier to compare logged batch results with reference data
- Use cursor to hover and identify individual channels (traces)
- Rename channels
- Add up to 3 Threshold Temperatures to calculate Time above Temperature
- Add an image to identify probe placement
- Add imagery and notes to any report
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Four FREE and unique ways to view and report your PosiTector and PosiTest data. Learn More
Temperature Probes
A wide variety of temperature probes are available for the PosiTesT OTL with 1.8 or 3.6 m (6' or 12') stainless steel braided cables (sold separately).
Certificate of Calibration showing traceability to NIST included.
Accessories
Probe ID Tags
OTLTAG - Replacement engraved ID tags for temperature probes
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Downloads
F.A.Q.
Does the PosiTest OTL Oven Temperature Logger require any formal training for use? Do you offer ‘demo’ models?
No. The PosiTest OTL is designed for simple operation and features an easy-to-use interface.In lieu of demonstration models, we provide unlimited technical support via telephone and/or email.
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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