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Log Tag Dry Ice Logger Posted by globalsensors December 7th, 2017

Log Tag Dry Ice Logger

The first challenge in the engineering of a very low temperature instrument is to select a battery that will perform under those conditions. Our Dry Ice model “probe-less” incorporates a special battery that has been tested even below our stated range.

In addition, most sensors have a more limited range over which the calibration data can be trusted. We take high quality sensors and qualify them for extreme low temperature performance. Other loggers claiming to cover the dry ice range simply cannot perform well in terms of sensor accuracy, since they use “assumed” calibration curve functions that are “extrapolated down”. Get the LogTag Dry Ice logger if you need to depend on the data.


A (USB Interface)

B (Disk)

LogTag Analyzer Software: click here to download.

LogTag Dry Ice Logger (Above Left)
A single LogTag™ Dry Ice logger unit (with external cable or with internal sensor).

Interface and Software Kit (A +B)
Includes interface unit with built-in USB cable and software disk.

Dry Ice Temperature Loggers

TRIL-8 imageNow the reliable and accurate LogTag formula works at Dry Ice temperatures. Many applications for the storage and shipment of products require extreme low temperature. Maintaining these critical temperatures is always a challenge, and one wants to know if proper temperatures were held.

Like other LogTag models, the Dry Ice models excel at performance. Temperature accuracy is unmatched, providing a “true” ±1.0°C accuracy in the critical recording range. Most recorders claim this level of performance, but do not hold 100% of their product within those stated limits. The LogTag Dry Ice logger does.

The unique external sensor of the probe-less model makes the responsiveness of the Dry Ice model better than other temperature loggers. The thermistor element actually senses temperature outside of the logger case. This permits the capture of more detail in the thermal history of the monitored environment.

The same advantage applies to the external probe model. The probe can be inserted in a location that would be awkward or impossible with the probe-less unit. Use this where a specific location needs to be monitored.

Like all LogTag units, simple controls on the face of the logger allow the user to start logging or mark the record during a recording episode (to signal a specific event or time point).

All external probe models use a unique type of remote temperature probe. They are not interchangeable with other types of LogTag remote probes, and are uniquely identified by the green sleeve color on the sensor’s plug.

Higher accuracy is achievable with the external probe models with additional factory calibration. If you have a requirement for higher accuracy, please call us for pricing and availability.

Specifications
Temperature Range-80°C to +40°C (-112°F to +104°F)
Temperature Resolution< 0.1°C for -80°C to 0.0°C, < 0.2°C for 0.0°C to+20°C < 0.5°C for +20°C to+40°C
Temperature Accuracy
(Resolution & Accuracy are rated values – actual product performance may be substantially better than figures stated.)
Probe-less model:

  • better than ±1°C for -30°C to +20°C
  • better than ±1.2°C for -45°C to -30°C & +20°C to +40°C
  • better than ±1.7°C for -80°C to-45°C

External Probe:

  • With recorder case sitting in environmental temperature between 0°C to 50°C :
  • better than ±1°C for -30°C to +20°C
  • better than ±1.2°C for -45°C to -30°C & +20°C to +40°C
  • better than ±1.7°C for -80°C to -45°C
Sensor Response TimeT90 of less than 5 minutes in moving air
Stored Time-Temperature Readings8032 readings (16K bytes memory)
Time AccuracyAverage 20 Seconds per Month
Logging IntervalAdjustable, 30 sec to several hours
Battery Type and Life3V Specialized Lithium battery – Three years of use
Dimensions8.6cm x 5.5cm x 0.86cm (L x W x H) 3³⁄₈” x 2¹⁄₈” x ⁵⁄₁₆”
Unit Weight35 gm (0.08 lb. | or 2.63 oz.)
Case Dust and Water ResistanceIP65 (roughly equivalent to NEMA 4) Does not apply to external probe model.
Indicator LightFlashing ‘OK’ indicator | Flashing ‘Alert’ indicator
Case MaterialPolycarbonate (Case and face label are G.R.A.S. materials per USDA)
Basic Features
  • Logging start by push button or specific date/time start
  • Optional clearing of alert indication by push button (places inspection make at same time).
  • Download inspection mark recorded in LogTag memory every time LogTag is downloaded.
  • ‘Prestart’ fail-safe logging (records temperature data even if not started)
  • Low Battery indication in software
  • Alerts: preset absolute max and min, time over and under low and high presets
  • Calibration to achieve higher accuracy possible with external probes, with matching cables maintained.
EMC ComplianceTested and complies with EC EMC directives (EN 50081-1:1992 & EN 61000-6-1:2001)
EN12830 ComplianceTested and complies to EN12830:1999 for transport, storage and distribution of chilled, frozen, deep frozen, quick-frozen food and others.
WHO ComplianceApproved by the World Health Organization’s (WHO) Performance, Quality and Safety (PQS) standard and listed on the WHO website:
Electronic temperature recorder, Model: LogTag Trix-8, as E06/06
FDA CFR21 Part 11 CompetenceLogger and Software systems are secure
RoHSMeets all international standards for compliance – documents available
Probe Details (Probe Model Only)Standard: 50cm (19””) (Specify with order) Extended: 3 m (9’10”) (Specify with order)
Cable material: PTFE/FEP (FDA food contact rated) coaxial
Each cable is matched to the unit in order to maintain stated accuracies.