Model

                      “A”’

                       “B”

                  AA-375R

           2.430” ( 61.72 mm )

           3.187” ( 90.95 mm )

                  AA-475R

           2.430” ( 61.72 mm )

           4.115” ( 104.50 mm )

                  AA-575R

           2.660” ( 67.56 mm )

           5.040” ( 128.02 mm )

Dial size

AA-375R,  3”Ø (75mm)
AA-475R,  4”Ø (100mm)
AA-575R,  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

Hermetic seal

Per ASME B40.3 dustproof and leak-proof

Harness

All stainless steel brackets with screws that loosen to allow 360° rotation of head and 180° adjustment of stem position

Bellows

Heavy-duty flexible stainless steel. Hermetically sealed at case and connection. Protects mechanism that transfers temperature change from bimetal coil to pointer

Dial

True Anti-Parallax dial, easy-to-read from any angle, minimizes reading errors. 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. Adjustment of the angle between case and stem may affect accuracy up to 0.5% of span (ASME B40.3).

Over temperature limits

Up to 250°F, 100%;

250°F to 550°F, 50%;

550°F to 1000°F, continuous use up to 800°F, intermittent use over 800°F

                           Single

                                    Dual

                       Celsius ( °C )

      Fahrenheit ( °F )

        Celsius ( °C )

                         -75 / 175

         -100 / 100

           -75 / 40

                         -70 / 70

           -40 / 160

           -40 / 70

                         -50 / 100

              0 / 140

           -18 / 60

                         -50 / 25

              0 / 180

           -18 / 82

                         -50 / 50

              0 / 220

          -10 / 100

                         -40 / 70

              0 / 250

          -20 / 120

                         -20 / 120

            20 / 240

          -10 / 110

                         -10 / 110

            25 / 125

           -5 / 50

                            0 / 50

            50 / 300

          10 / 150

                            0 / 60

            50 / 400

            0 / 200

                            0 / 80

            50 / 500

          10 / 260

                            0 / 100

          150 / 750

          50 / 400

                            0 / 150

                            0 / 200

                            0 / 250

                            0 / 300

                            0 / 400

                            0 / 450

                        100 / 400