BAPI Temperature Sensor Catalog Page

Extreme Temperature RTD Sensors

BA/1x[1,2,3] Temperature Sensor

Installation & Operating Instructions

8612_ins_RTD_EXTRM

Overview

The Extreme Temperature Sensor is made for thermowell mounting, direct insertion or remote probe mounting. The probe is made
of Stainless Steel and made in different lengths for a custom t. The RTD’s are available in 100Ω or 1KΩ 385 curve as shown in the
specications. The enclosures come in plastic or metal for both NEMA 3R and NEMA 4 applications and are all plenum rated.

Identication

6

Fig. 4: Extreme Temp Immersion

with Weatherproof (WP) Enclosure,

Fig. 1: Extreme Temp Immersion Sensor

Fig. 3: Extreme

Temp Immersion

with Weatherproof

(WP) Enclosure,

Standard Mount

Outside Mount

rev. 07/07/16

Fig. 2: Extreme Temp Remote Probe

Fig. 5:

Extreme

Temp Remote

Sensor with

Weatherproof

(WP)

Enclosure

Fig. 6: Extreme Temp Remote

Sensor with BAPI-Box (BB)

Enclosure

Fig. 7: Extreme Temp Remote Sensor

with BAPI-Box 2 (BB2) Enclosure

Fig. 8: Extreme

Temp Remote Sensor

with BAPI-Box 4
(BB4) Enclosure

(A Pierceable

Knockout Plug

is available from

BAPI for the open

port in the BB4.

Part #BA/PKP-100)

Fig. 9: Extreme

Temp Remote Sensor

with Weather Tight

(EU) Enclosure

Specications subject to change without notice.

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Extreme Temperature RTD Sensors

BA/1x[1,2,3] Temperature Sensor

Installation & Operating Instructions

8612_ins_RTD_EXTRM

Mounting

Application: Figure 9 shows a typical four-inch thermowell and four-inch immersion probe installed into an eight inch pipe. In a
properly insulated pipe with liquid or steam, the temperature is essentially the same across the entire cross section of the pipe. Usually
thermowells are sized to extend to the center of the pipe; however, shorter thermowells will give proper temperature readings if properly
insulated. The shorter thermowells are used in pipes with high ow velocities. See Application notes “Thermowells Explained” on our
website at www.bapihvac.com

Thermowell Installer: Typically a Pipe Fitter drills a ¾-inch hole into the pipe where the thermowell is needed. A customer provided
tting, called a Threadolet or Weldolet, is welded to the pipe over the hole. The Threadolet has a ½” NPT thread in the center. Thread
sealant such as Teon tape or pipe dope is applied to the ½” NPT threads of the thermowell. The thermowell is then inserted into the
Threadolet and tightened. Estimates on insertion depths can be seen in our Application note “Thermowells Explained” on our website
at www.bapihvac.com

Sensor Installation: Insert the immersion sensor into the well with the stainless steel screw tting into the opening on the well. Hand
tighten the immersion sensor snugly without too much torque. Make sure that the tip of the immersion sensor is inserted as close
to the well bottom as possible. The well is close tting to the sensor and will offer an accurate reading without the need for thermal
compound.

rev. 07/07/16

Fig. 13: Extreme Temp Remote Sensor

in a strap-on application

Fig. 10: Extreme Temp

Probe with ange mount

Fig. 14:

Extreme

Temp Remote

Sensor with

Weatherproof

(WP)

Enclosure

Fig. 11: Extreme Temp Immersion with

Weatherproof Enclosure

Fig. 12: Remote Sensor mounting using the scored break off

of the Flexible Probe Bracket (FPB) which is shown at left.

Fig. 15: Extreme Temp

Remote Sensor with

BAPI-Box (BB)

Fig. 16: Remote Sensor

with BAPI-Box 2 (BB2)

Specications subject to change without notice.

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