DIGI-TEL™ THERMOMETERS

Featuring NEW Loop Powered Configurations with 4-20mA Output

Tel-Tru instruments are designed and built to support the requirements of demanding food processing, dairy engineering, and process industry environments. Our feature-rich units will provide reliable transmitter output to remote devices within your facility or that can be integrated into expanded control systems to help processes run more efficiently.

The series is available in two popular styles offering a wide range of convenient configurations and stem lengths from 2-½" to 24". The first is a 5" diameter, stainless steel, back-connect, bottom-connect, or adjustable-angle configuration with a direct mounted stem and a reliable easy-to-read 1" tall digital display. The Digi-Tel series offers a 4.5" diameter, polypropylene housing-based configuration with remote-sensor and easy-to-read 1" tall digital display.  Stems and fittings designed for direct replacement of liquid-in-glass thermometers are available for both styles. All models meet FDA Rule 21 CFR 113.40 requirements for temperature indicators used in retorts, and the requirements of the Pasteurized Milk Ordinance for dairy applications.

With NIST-traceable accuracies and a wide temperature range, the new Digi-Tel series includes a convenient PC-based Calibration Software tool that allows the user to quickly and easily adjust the number of significant digits on the digital display and to field calibrate your Digi-Tel electronic thermometer to your traceable or relative accuracy standards. Loop powered or long-life lithium battery powered, the new Digi-Tel series has a five year warranty from date of shipment to you.

The Digi-Tel Electronic Thermometer Series --- offering extensive configuration options with the solid durability and accuracy required for the most demanding industrial applications.


MODELS:

 

ND models,
.25" probe
Digi-Tel industrial thermometers, direct mount or remote with
.025" diameter probe
ND models,
5/8" probe, tapered bulb
Digi-Tel industrial thermometers, direct mount or remote with
5/8" stem with 7/16" tapered bulb (for direct replacement of industrial liquid-in-glass thermometers)
SD models Digi-Tel sanitary thermometers, direct mount or remote

Display:
  • NIST traceable factory calibration
  • High-visibility 1" tall LCD digital display
  • Power options:
    • Factory installed battery, 5 year Lithium battery
    • Field replaceable battery, 2 year 3.6V 1/2 AA Lithium
    • Loop powered (9-32VDC, polarity protected) with 4-20mA transmitter output
  • Error codes shown on display if problem is detected
  • Microprocessor technology for improved stability, accuracy and PC based field calibration
Probe:
  • Connection fittings:
    • ½" NPT -- standard
    • Available options include:
      • ½" NPT Union
      • ½" BSPT
      • 1/4" x 18 UNEF-2A with 5/8" stem and tapered bulb
      • Plain bushing if sliding union required
      • Tri-Clover sanitary flanges that meet 3-A Sanitary Standard Number 74-06 requirements - sizes 3⁄4" to 4"
      • 1¼ x 18 UNEF-2A adapter kit
Housing:
  • 5" 304SS case with direct mounted 316SS sensor probe:
    • Back connected
    • Bottom connected
    • Adjustable angle
  • 4-½" case polypropylene body with Teflon covered cable and remote sensor probe
  • Windows: Shatterproof (safety) glass standard with polycarbonate optional
Environmental:
  • Conforms to EU/EMC directive 2004/108/EC
Other:
  • Weight 2 lbs
  • Serial number on each unit for identification
  • Warranty 5 years from shipment
  • Certificate of Calibration – traceable to NIST (standard)
  • Factory recertification and maintenance program (optional)
  • Factory non-warranty repair service - including battery replacement for factory installed batteries
Display:
  • Temperature range span -75/750°F or -60/400°C
  • Accuracy ±0.5°F from 32°F to 300°F
  • Accuracy below 32°F and above 300°F, add ±0.0065°F per degree
  • Resolution 0.1°F or C
  • Sample rate 3 sec.
Transmitter Output:
  • Output: 4-20mA
  • Specified display range
    • Minimum Span: 45°F (25°C)
    • Maximum Span : 360°F (200°C)
  • Accuracy: ± (0.18°F + 0.1% span) or ± (0.1°C + 0.1% span)

Probe:

  • RTD sensor Pt1000 2-wire
  • 316 Stainless Steel
  • Stems 2-½" to 24" x 0.25" diameter
Environmental:
  • Ambient operating temperature range -40°F to 176°F (-20°C to 80°C)
  • Relative humidity ≤90% non-condensing
  • Mechanical shock ≤100 g
  • Vibration 5 to 60 Hz, 1G max
Digi-Tel Industrial

View dimensional drawings of the Digi-Tel ND5 direct mount thermometers
View the dimentional drawings of the Digi-Tel ND4R remote thermometer

Digi-Tel Sanitary
View dimensional drawings of the Digi-Tel SD5 direct mount thermometers
View dimensional drawings of the Digi-Tel SD4R remote thermometer
Thank you for considering Tel-Tru's Digi-Tel thermometers for your temperature measurement needs! Please take a few moments to carefully review the Digi-Tel Thermometer Instructions. This instruction packet covers information on:
  • Installation, care, and usage
  • </div>of your Digi-Tel thermometer
  • Safety information
    Additional Literature – See our Buyer's Guide for information on other Tel-Tru products and accessories.



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