US Gauge BAC Data Sheet

Product Data

TEMPERATURE PRODUCTS

Model BAC 3" and 5" Back Connected
Industrial Bimetallic Thermometers

3TP -

DESCRIPTION

U.S. Gauge offers 3" and 5" heavy duty, industrial bime­tallic thermometers with a 90º back angle, rear threaded
union connection design. These thermometers, with
300-Series stainless steel wetted parts, are rugged and
commonly used in industrial, pulp and paper, food and
beverage processing, HVAC, and OEM applications.

The standard connection is 1/2-14 NPT, but others
are available. The standard lens material is glass. Stan­dard stem diameter, up to 12" long, is .25". Other avail­able stem sizes are .24" (6mm), .32" (8mm), and .375"
(9.52mm). Some temperature ranges are NSF certified.

Model

BAC

B

SPECIFICATIONS

STEM DIAMETER: .25" standard up to 12" stem

CONNECTION: 1/2-14 NPT

EXTERNAL RESET: Standard (see photo below)

CONSTRUCTION: 304 stainless steel external parts, welded con-

struction, corrosion resistant to most chemicals

HERMETIC SEAL: Per ASME B40.3, dustproof and leakproof

DIAL: Cupped anti-parallax dial, easy to read from any angle,

minimizes reading errors; anodized aluminum with large black
numbers and graduations. Outer scale in Fahrenheit; inner
scale Celsius.

LENS: Glass

BIMETALLIC COIL: Helix coil is silicone coated on ranges below

500ºF 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

OVER TEMPERATURE LIMITS: Up to 250ºF, 100%; 250º to 550ºF,
50%; 550º to 1000ºF, continuous use up to 800ºF, intermittent
use over 800ºF

A

1/2-14 NPT

0.600

(15.24)

Dimensions

STANDARD

STEM LENGTHS

2.5 (63.5)
4 (101.6)
6 (152.4)
9 (228.6)

12 (304.8)
*15 (381.0)
*18 (457.2)
*24 (609.6)

*OPTIONAL

ø0.25

(6.35)

INCHES

(MM)

On-line order fax: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 205 Keith Valley Road | Horsham PA 19044 U.S.A.

© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)

Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.

Model Unit A B

BAC-3

BAC-5

inches

mm

inches

mm

1.113

28.27

1.113

28.27

3.132

79.55

5.006

127.15

www.ametekusg.com

Product Data

TEMPERATURE PRODUCTS

Model BAC 3" and 5" Back Connected
Industrial Bimetallic Thermometers

Spec Number Selection Chart

Model BAC-3 3" Dial Size

4TP -

Connection

1/2-14 NPT

Model BAC-5 5" Dial Size

Connection

1/2-14 NPT

* All dials are dual scale, Fahrenheit outer scale, Celsius inner scale

Temperature

Range*

25º to 125º FC 415086 415093 415100 415107 415114

0º to 200º FC 415087 415094 415101 415108 415115

0º to 250º FC 415088 415095 415102 415109 415116

50º to 300º FC 415089 415096 415103 415110 415117

50º to 400º FC 415090 415097 415104 415111 415118

50º to 550º FC 415091 415098 415105 415112 415119

200º to 1000º FC 415092 415099 415106 415113 415120

Temperature

Range*

0º to 200º FC 415121 415127 415133 415139 415145

0º to 250º FC 415122 415128 415134 415140 415146

50º to 300º FC 415123 415129 415135 415141 415147

50º to 400º FC 415124 415130 415136 415142 415148

50º to 550º FC 415125 415131 415137 415143 415149

200º to 1000º FC 415126 415132 415138 415144 415150

2-1/2" Stem

Length

Spec No. Spec No. Spec No. Spec No. Spec No.

2-1/2" Stem

Length

Spec No. Spec No. Spec No. Spec No. Spec No.

4" Stem

Length

4" Stem

Length

6" Stem

Length

6" Stem

Length

9" Stem

Length

9" Stem

Length

12" Stem

Length

12" Stem

Length

On-line order fax: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 205 Keith Valley Road | Horsham PA 19044 U.S.A.

© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)

Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.

www.ametekusg.com