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  • glycol temperature buffer
glycol temperature buffer

$30.00
Part #
MNA-TB-GL
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Description

Used in refrigerators & freezers, this accessory improves accuracy & minimizes false alarms from defrosting, fans, or in/out traffic. This Glycol filled vial acts as insulation to slow the temperature sensor’s response time.

In the box

  • Glycol bottle
  • 120ml of propylene glycol/distilled water mix
  • Cap with gland for sensor lead

In testing 2 similarly calibrated temperature probes in a cooler where the door was left open for 5 minutes then closed for 15 minutes and repeated, the following observations were made.


Monnit Temperature Buffer Comparison Test

Impulse Duration
(minutes)
Air Temp Rise
(degrees F)
Air Response
(degrees per minute)
Vial Temp Rise
(degrees F)
Vial Response Time
(degrees per minute)
5.31 15.1 2.84 8.7 1.64
5.65 15.5 2.74 8.1 1.43
7.33 16.4 2.24 8.6 1.17
5.14 14.3 2.78 7.1 1.38
6.46 13.2 2.04 6.7 1.04
6.02 13.3 2.21 6.5 1.08

AVERAGE RATES:
No Temperature Buffer – 2.45 degrees F per minute rise
With Temperature Buffer – 1.29 degrees F per minute rise

Conclusion: The temperature buffer causes a 52% decrease in temperature response helping to eliminate false alerts.




Suggested Application Uses for This Sensor

  • Cooler Temperature Monitoring
  • Freezer Temperature Monitoring