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Back-connected, general-purpose Bi-Metal Thermometers can be directly immersed into a process, or can be installed in a variety of thermowells. These thermometers are available in various dial sizes, temperature ranges, sheath diameters, sheath lengths and mounting options. A conical tip is standard for 1/4" diameter stems in 2.5", 4", 6" and 9" lengths.
Unit of Measure

Specifications

Brands

N/A Pyromation®

Configuration Code

N/A BM01

Dial Size

N/A Code BMI3B - 3 inCode BMI4B - 4 inCode BMI5B - 5 in

Dimension A

N/A Code BMI3B - 1.375 inCode BMI4B - 1.375 inCode BMI5B - 1.718 in

Dimension B

N/A Code BMI3B - 3.187 inCode BMI4B - 4.115 inCode BMI5B - 5.040 in

Sheath Diameter

N/A Code 49 - 0.25 inCode 69 - 0.375 in

Sheath Materials

N/A Code 49 - 304 Stainless Steel (42 in. maximum length) Code 69 - 304 Stainless Steel

Note for Sheath Length

N/A Specify 3 digit length in inches
2(1/2) in. minimum length required
120 in. maximum length

Process Connection Diameter (304 Stainless Steel)

N/A Code 9HN - 1/2 (in.) National Pipe Thread (NPT) process connection Code 9HP - No process connection Code 9PU - 1/2 (in.) National Pipe Thread (NPT) Union Code 9RH - R 1/2 (in.) British Standard Pipe Thread (BSPT)

Window Options

N/A Code AC - Acrylic Code G - Glass (Standard) Code PC - Polycarbonate (up to 135 ºC (300 ºF)) Code SG - Safety Glass Code TG - Tempered Glass (Not available in 4 in. dial)

Additional Options

N/A Code P - Plain Dial (No company name)
Code I - Stainless Steel Tag
Code SF - Silicon-filled (Only available with Safety Glass or Polycarbonate lens. Silicon filled thermometers are limited for use in process temperatures ranging from (-45 to 260) ºC)
Code M1 - Minimum indicator or maximum indicator (Only available in a 3 in. or 5 in. dial size with glass or acrylic lens)
Code M2 - Both minimum and maximum indicator (Only available in a 3 in. or 5 in. dial size with glass or acrylic lens)

Temperature Range

N/A Code 0020 : -75 to 175 ºCCode 0100 : -50 to 100 ºCCode 0240 : -20 to 120 ºCCode 0330 - 0 to 100 ºCCode 0350 - 0 to 150 ºCCode 0370 - 0 to 200 ºCCode 0380 - 0 to 250 ºCCode 0390 - 0 to 300 ºCCode 0410 - 0 to 450 ºCCode 0500 : -100 to 100 ºFCode 0740 - 0 to 200 ºFCode 0750 - 0 to 220 ºFCode 0760 - 0 to 250 ºFCode 0770 - 0 to 300 ºFCode 0800 - 0 to 500 ºFCode 0840 - 20 to 240 ºFCode 0920 - 50 to 250 ºFCode 1030 - 200 to 1000 ºF

Dual Temperature Range

N/A Code 1100 - -40 to 160 ºFCode 1170 - 0 to 220 ºFCode 1180 - 0 to 250 ºFCode 1270 - 50 to 500 ºFCode 1310 - 200 to 1000 ºFCode 1100 - -40 to 70 ºCCode 1170 - -10 to 100 ºCCode 1180 - -20 to 120 ºCCode 1270 - 0 to 250 ºCCode 1310 - 100 to 550 ºC

Length

N/A 2.5 in4 in6 in9 in

Additional Information

Additional Information

N/A All other sheath diameters and sheath lengths will be supplied with a rounded tip. Standard external component material consists of 304 stainless steel while 316 stainless steel wetted parts are available as an optional selection. The accuracy is ±1% full span per ASME B40.3 Grade A. These Bi-Metal Thermometer (BMI) series units come with a calibration feature, and each is easily calibrated by inserting an allen wrench into the reset opening.