Dwyer Instruments SERIES BTT Catalog Page

3-21/32

1-1/16

3X-5/32

1-3/32

3-21/32

[92.96]

3-9/16

[90.42]

1-1/16
[27.05]

3X-3/8

[9.36]

21/64
[8.38]

1-3/16
[30.00]

1-5/32
[29.39]

3X-5/32

[3.87]

E

CONNECTOR

8-51/64
[223.58]

3-55/64

[98.06]

ø5-7/64

[ø129.59]

7-3/32

[180.18]

CONNECTOR

ø3-5/16

2-13/16

4-21/64

GASKET

BALL CHAIN
CONNECTOR

BALL CHAIN
CONNECTOR

1/8 [3.30]
GASKET

8-51/64
[223.58]

3-55/64

[98.06]

ø5-7/64

[ø129.59]

ø3-5/16
[ø84.08]

PROBE

LENGTH

2-51/64

[71.09]

4-19/64

[109.29]

4-3/64

[102.94]

2-15/64 [56.63]

7-3/32

[180.18]

2X ø13/64

[ø5.08]

SLOT

ø3-5/16

[ø84.07]

2-13/16

[71.48]

PROBE

LENGTH

1/8 [3.30]
GASKET

2-15/64

ø5-7/64

E

SERIES BTT

TEMPERATURE TRANSMITTERS

Current or Voltage Output, NEMA 4X Enclosures

4-19/64
[109.29]

4-3/64

[102.94]

BALL CHAIN

Duct mount

2X ø13/64

[ø5.08]

SLOT

ø3-5/16

[ø84.07]

[84.14]

E

O

D

I

V

O

N

L

I

N

Immersion mount

The Series BTT Temperature Transmitters offer transmitter output signals with

the same form and t as our popular TE thermistor and RTD sensors for building

HVAC applications. Thermowells are required when using immersion models in liquid
applications.

FEATURES/BENEFITS

• Duct, immersion, and outside air models available

• Radiation shield available for mounting in direct sunlight

• Transmitter output allows for longer wire runs than standard thermistor sensors

APPLICATIONS

• Building automation system temperature monitoring

MODEL CHART

Example BTT -D 04 -1 BTT-D04-1
Series BTT Temperature transmitter
Mounting

CongurationDI

Probe
Length*

Output 1

Options Blank

*For BTT-I models, actual probe length is approximately 0.75˝ longer than listed
probe length to ensure maximum immersion into thermowells.

O

R

Duct mount
Immersion mount

Outside air

25

04

06
08
12
18

Outside air with radiation shield

2.5˝ (required for “O” and “R” models)
4˝
6˝
8˝
12˝
18˝
4-20 mA

2

0-10 V
None

FC

Factory calibration certicate

NIST

NIST calibration certicate

2-51/64

[71.09]

BALL CHAIN

[71.44]

PROBE

LENGTH

1/8 [3.30]
GASKET

1/8 [ø3.18]

Outside air without

[109.93]

ø47/64
[18.65]

1/2 NPS

radiation shield

Outside air with
radiation shield

5-1/8

[130.00]

3-45/64

94.00

6-47/64

170.90

[ø129.59]

[56.60]

3-55/64

[98.06]

8-51/64
[223.58]

2X ø13/64

[ø5.00]

3-7/64
[79.00]

27/32

[21.50]

7-3/32

[180.18]

4-17/32
[115.00]

115

79

90

2-15/64 [56.63]

SPECIFICATIONS
Temperature Sensor: Pt1000 RTD.

Range: -40 to 140°F (-40 to 60°C).
Temperature Limits: Operating: -40 to 302°F (-40 to 150°C).
Accuracy: ±0.5°C @ 25°C.
Thermal Effect: ±0.01%/°C.
Response Time: 100 ms.
Wetted Materials: All models: 304 SS (probe), polycarbonate (housing); Duct and

immersion models: Neoprene (gasket); Outside air models: Nylon (insert), silocone
(O-ring).

Process Connection: 1/2˝ NPS (immersion models only).
Electrical Connection: Removable terminal block, knocks out for conduit tting.
Conduit Connection: 1/2˝ NPT.
Probe Lengths: 2.5 to 18˝ (depending on conguration).
Power Requirements: 13-36 VDC for current models, 13-36 VDC or 16-28 VAC for

voltage models.

Output Signal: 4-20 mA or 0-10 VDC (depending on model).
Enclosure Rating: NEMA 4X (IP66) (immersions models require thermowell).
Weight: 5.11 oz (145 g) (duct/immersion); 8.4 oz (238 g) (OSA without radiation

shield); 1 lb 7.4 oz (663.4 g) (OSA with radiation shield).

Agency Approvals: CE.

THERMOWELLS - WELDED

Model Material
TE-TNS-N253N-00
TE-TNS-N043N-00
TE-TNS-N063N-00
TE-TNS-N083N-00
TE-TNS-N123N-00
TE-TNS-N183N-00

304 SS
304 SS
304 SS
304 SS
304 SS
304 SS

Connection
(Internal/External)

1/2˝ NPSM/1/2˝ NPT
1/2˝ NPSM/1/2˝ NPT
1/2˝ NPSM/1/2˝ NPT
1/2˝ NPSM/1/2˝ NPT
1/2˝ NPSM/1/2˝ NPT
1/2˝ NPSM/1/2˝ NPT

Insertion
Length

2.5˝
4˝
6˝
8˝
12˝
18˝

DWYER INSTRUMENTS, INC. |

50

YEAR LIMITED

WARRANTY

Temperature Transmitters

133