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ETI Indicator

ETI Indicator

The ETI Indicator is a high quality digital temperature-indicating device designed for displaying and documenting the processing temperature in retorts. It complies with FDA 21 CFR Part 113, and it is ideal for thermal processing of low-acid canned foods. The ETI Indicator has a digital display that is easy to read, offers an accuracy of +/- 0.1°C, and does not constitute a potential source of mercury contamination.

Compliant with FDA 21 CFR Part 113

  • FDA compliant alternative to mercury-in-glass thermometers
  • Dual interchangeable sensor
  • NIST traceable (or equivalent) calibration certificate
  • Rechargeable backup battery
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Documented and Traceable Accuracy

The ETI Indicator accuracy of +/- 0.1°C / 0.18°F is tested against an accurate calibrated reference device and is delivered with a NIST traceable (or equivalent) calibration certificate. The ETI Indicator sensor has a unique ID which is shown on the calibration certificate ensuring traceability.

The combination of full compliance with FDA regulations and Ellab's renowned quality and high reliability makes the ETI Indicator an excellent choice for retort monitoring. Recognizing that product safety, quality and efficiency are critical to our clients, Ellab has implemented the following features to the ETI Indicator:

  • Internal rechargeable 8-hour battery
  • Multiple probe lengths and sensor fittings
  • Automatic warning upon loss of accuracy or probe mailfunction


The factory recalibration procedure is made simple as the sensor holds both calibration constants and ID which are independent from the display. When sending the sensor in for factory calibration, a certificate will be issued which includes all of the information needed to comply with FDA regulations and ensures the reliability and accuracy of the ETI Indicator. The calibration date is easily visible on the digital display. The ETI Indicator display automatically shows a warning 28 days before factory recalibration is due. 

ETI Indicator Technical Specifications

Calibrated Temperature Range:

0 to +140 °C / +32 to +284°F

Main Unit Operating Range:  

0 to +70°C / +32 to +158°F

Sensor Operating Range:

-100 to +150°C / -148 to +302°F


± 0.1°C / 0.18°F


± 0.1°C / 0.1°F

Probe & Sensor:

Intelligent 6mm Diameter Stainless Steel Sensor With Two Independent Pt-1000
Sensing Elements and A/D Converters


0 - 90% RH, non-condensing

Ingress Protection Code:


External Power:

7 to 30 V DC

Battery Backup:

Internal, Rechargeable, 8 hours

Display Update Rate:

1 Sec.

ETI Indicator Display

Resistant To Electromagnetic Interference
To prevent electromagnetic interference from affecting the accuracy of the ETI Indicator, it is designed according to IEC 61326 requirements. Furthermore, the IP67 classification of the ETI Indicator ensures that it is suitable for use in an industrial environment.

Easy Readable Temperature
The high quality illuminated LCD digital display clearly shows the temperature with a resolution of 0.1°C / 0.1°C °F as well as the calibration date and sensor ID. The display can be connected to the temperature sensor directly or by using a cable. This flexible solution ensures that the display can be placed away from the sensor making it easy to read.

Temperature Settings
A hardware switch makes it easy to change between °C and °F.

Automatic Warnings
The ETI Indicator display automatically shows a warning before factory recalibration is due or if a system error occurs.

ETI Indicator Sensor

Detection of Loss of Accuracy
For maximum safety and dependability the ETI Indicator uses a dual probe sensor. The intelligent sensor has two independent Pt-1000 sensing elements and A/D converters. The primary sensor is compared to the second sensor and a deviation between the sensors exceeding 0.3 ºC causes an error message to appear on the display and the ETI Indicator alarms the user.

Interchangeable Sensors
Since the A/D converters are integrated in the intelligent probe, the ETI Indicator display has no impact on sensor accuracy. When having two sensors available, it is possible to use one when the other has been sent in for factory recalibration. This reduces costs and permits users to keep a constant production flow.

Flexible Installation
Multiple sensor lengths and custom fixtures are available to fit all retorts. The display is prepared for easy mounting on DIN rails, PLC cabinets and similar devices.

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