BAPI Rigid Averaging Duct Transmitters Catalog Page
Rigid Averaging Duct Transmitters
BA/# -RA Temperature Transmitter
Installation & Operations
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Overview
The BA/T#-RA is a rigid, stainless steel, averaging, duct mounted 4-20mA or Voltage temperature transmitter probe. It
comes in a variety of probe lengths and optional mounting enclosures shown below. The 4-20mA transmitter can be
ordered with 100Ω (385), 1KΩ (385) RTDs or 10KΩ type 2 thermistor sensors. A 0-5VDC or 0-10VDC transmitter is also
available with the 10KΩ type 2 thermistor sensor. Special high accuracy RTD matched transmitters (M) are available
which match the sensor to the transmitter for improved accuracy.
Identication
rev. 06/29/15
Fig 1: Typical Duct Mount Applications - Top Mount
(left) and Side Mount (right).
Fig 3: Duct Unit with Weatherproof (WP) Enclosure
Fig 2: Duct Unit with J-Box (Standard)
Fig 4: Duct Unit with BAPI-Box (BB) Enclosure
Fig 5: Duct Unit with BAPI-Box 2 (BB2) Enclosure
Specications subject to change without notice.
Fig 6: Duct Unit with Weather Tight (EU) Enclosure
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Mounting
1. Place the sensor in the middle of
the duct going through temperature
stratied air, to achieve the best
temperature reading. (See Fig. 1)
2. Drill the probe hole as depicted
below for the enclosure being used.
(Handy Box, BB, BB2, WP, EU).
Insert the probe into the duct.
Rigid Averaging Duct Transmitters
BA/# -RA Temperature Transmitter
Installation & Operations
rev. 06/29/15
3. Mount the enclosure to the duct
using BAPI recommeded #8
screws through a minimum of two
opposing mounting tabs provided.
Weatherproof (WP) enclosures will
require assembly of the mounting
tabs on opposite corners. A 1/8
inch pilot screw hole in the duct
makes mounting easier through the
mounting tabs. Use the enclosure
tabs to mark the pilot hole locations.
4. Snug up the sensors so that the
foam backing is depressed to
prevent air leakage but do not overtighten or strip the screw threads.
Fig 7:
Junction Box or No-Box (NB)
Mounting Holes
Fig 8: BAPI-Box 2 (BB2)
Enclosure Mounting Holes
Fig 9: BAPI-Box (BB) Enclosure
Mounting Holes, Rotate 90° for
Horizontal Mounting
Fig 10:
Weather Tight (EU or EUO)
Enclosure Mounting Holes
Specications subject to change without notice.
Fig 11:
Weatherproof (WP) Enclosure
Mounting Holes
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