Tel-Tru Bi-Metal Thermometers ( GT300R & GT500R )

Dial size

GT300R,  3”Ø ( 75mm )
GT500R,  5”Ø ( 125mm )

Stem diameter

0.250” (6.35mm) standard

Connection

1/2" NPT

External reset

Calibration feature are easy to calibrate by inserting 1⁄16" Allen wrench into reset opening

Construction

304 stainless steel external parts, Welded construction. Corrosion resistant to most chemicals

Hermetic seal

Per ASME B40.3 dustproof and leak-proof

Dial

True Anti-Parallax dial, Anodized aluminum with large black numbers and graduations

Lens

Glass

Bimetal coil

Helix coil is silicone coated on ranges below 500°F for vibration dampening and to maximize heat transfer and response time

Accuracy

±1% full span per ASME B40.3 Grade A. When using maximum or minimum temperature indicator, accurate to within 1-1/2% full span

               Model

       Dial ( Ø )

Temperature range ( °C )

          Stem

   Connection

   GT300R/2.5/-40+70C

     3”  ( 75 mm )

     -40 to +70

   2.5" ( 65 mm )

    ½” NPT

    GT300R/2.5/0+100C

     3”  ( 75 mm )

        0 - 100

   2.5" ( 65 mm )

    ½” NPT

    GT300R/2.5/0+150C

     3”  ( 75 mm )

        0 - 150

   2.5" ( 65 mm )

    ½” NPT

   GT300R/2.5/0+200C

     3”  ( 75 mm )

        0 - 200

   2.5" ( 65 mm )

    ½” NPT

   GT300R/2.5/0+300C

     3”  ( 75 mm )

        0 - 300

   2.5" ( 65 mm )

    ½” NPT

   GT300R/2.5/0+400C

     3”  ( 75 mm )

        0 - 400

   2.5" ( 65 mm )

    ½” NPT

      GT300R/4/0+100C

     3”  ( 75 mm )

        0 - 100

    4" ( 100 mm )

    ½” NPT

      GT300R/4/0+120C

     3”  ( 75 mm )

        0 - 120

    4" ( 100 mm )

    ½” NPT

      GT300R/4/0+200C

     3”  ( 75 mm )

        0 - 200

    4" ( 100 mm )

    ½” NPT

     GT300R/6/-40+70C

     3”  ( 75 mm )

     -40 to +70

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+120C

    3”  ( 75 mm )

        0 - 120

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+150C

    3”  ( 75 mm )

        0 - 150

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+200C

    3”  ( 75 mm )

        0 - 200

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+300C

    3”  ( 75 mm )

        0 - 300

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+450C

    3”  ( 75 mm )

        0 - 450

    6" ( 150 mm )

    ½” NPT

     GT300R/6/0+500C

    3”  ( 75 mm )

        0 - 500

    6" ( 150 mm )

    ½” NPT

    GT300R/6/500/1000
              (°C/°F)

    3”  ( 75 mm )

100 - 550°C / 200 - 1000°F

    6" ( 150 mm )

    ½” NPT

     GT300R/12/0+150C

    3”  ( 75 mm )

        0 - 150

   12" ( 300 mm )

   ½” NPT

     GT300R/12/0+300C

    3”  ( 75 mm )

        0 - 300

   12" ( 300 mm )

   ½” NPT

      GT500R/8/0+500C

   5”  ( 125 mm )

        0 - 500

    8" ( 200 mm )

   ½” NPT