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Models TE-701 and TE-702

Duct Temperature Sensors

Technical Information

Rev. 0

7400 Flying Cloud Drive • Minneapolis, MN 55344-3720 • USA

800-843-5116 • 952-835-1626 • Fax 952-829-5331

www.mamacsys.com

IS.TE701/702-00

Ordering Information

Dimensions

Figure 1.

 TE 701 A and B Dimensions

Figure 2.

 TE 701 C and D Dimensions

Figure 3.

 TE 702 A Dimensions

Figure 4.

 TE 702 B and C Dimensions

Specifications

Platinum RTD Sensors

:

 

±

 

0.1% @ 32°F (0°C), Alpha: 385 per DIN 

43760

Nickel RTD Sensors

: ±

 

0.5°F @ 70°F (21.1°C), 6,000 PPM/K T.C.R.

Balco RTD Sensors

: ±

 

0.5°F @ 70°F (21.1°C), 4,300 PPM/K T.C.R.

Thermistor Sensors

:

 

±

 

0.2°C interchangeability @ 77°F (25°C)

Operating Temperature

: -40°F to 250°F (-40°C to 125°C)

Probe Material

: 1/4-inch (6.3 mm) O.D., 0.5 mm wall 

304 stainless steel 

Flange Material

: 304 stainless steel

Bulkhead Fitting

: Brass with poly compression sleeve

Plastic Enclosure

: Polycarbonate, 30% glass filled, rated UL 94V-5-0

Steel NEMA-1/IP-30

: 18 Ga. galvanized steel

Steel NEMA-4/IP-65

: 18 Ga. cold-rolled steel, powder coated

Installation 

Before Installation

• Read these instructions carefully. Failure to do so can result in 

damage or electrical shock.

• Inspect packaging for signs of damage. If damaged, notify the carrier 

immediately. 

• Verify that the sensor specifications are suitable for the particular 

application.

• Installers must be trained and qualified technicians.

Important

: All wiring must be compatible with applicable codes, 

ordinances, and instructions.

Location

Install the sensor in a location where it will sample the average air 
temperature in a duct. Avoid areas where the air is stratified because 
these areas can cause sensing errors. 

Mount the TE 701 A or B Sensor

1.

Drill a 3/8-inch (9 mm) hole into the duct or plenum where the 

sensor will be installed.

2.

Insert the sensor probe into the duct or plenum until the flange rests 

against the duct or plenum wall.

3.

Use the flange as a template to mark and drill holes for two #8 self-

tapping sheet metal screws (not provided). 

4.

Fasten the sensor to the duct or plenum wall with the sheet metal 

screws. 

5.

Make the wiring connections. See Figure 5.

INSTALLATION

SENSOR

PROBE

LENGTH

701 A

701 B

701 C

701 D

Flange mount, 
3-inch lead wire

Flange mount, 
6-foot cable

Bulkhead fitting, 
3-inch lead wire

Bulkhead fitting, 
6-foot cable

1

3

4

5

7

10

11

13

15

17

18

21

100-ohm platinum RTD

1,000-ohm platinum RTD

1,000-ohm nickel RTD

1,000-ohm Balco RTD

10,000-ohm NTC thermistor

3,000-ohm NTC thermistor

10,000-ohm NTC thermistor

5,000-ohm NTC thermistor

100,000-ohm NTC thermistor

20,000-ohm NTC thermistor

2,252-ohm NTC thermistor

1,800-ohm NTC thermistor

A

B

C

D

4 inches/
100 mm

6 inches/ 
150 mm

8 inches/
200 mm

12 inches/
300 mm

702 A

702 B

702 C

Polycarb plastic 
enclosure IP-54

Galvanized steel
enclosure 
NEMA-1/IP-30

Painted steel 
enclosure 
NEMA-4/IP-65

1

3

4

5

7

10

11

13

15

17

18

21

100-ohm platinum RTD

1,000-ohm platinum RTD

1,000-ohm nickel RTD

1,000-ohm Balco RTD

10,000-ohm NTC thermistor

3,000-ohm NTC thermistor

10,000-ohm NTC thermistor

5,000-ohm NTC thermistor

100,000-ohm NTC thermistor

20,000-ohm NTC thermistor

2,252-ohm NTC thermistor

1,800-ohm NTC thermistor

A

B

C

D

4 inches/
100 mm

6 inches/ 
150 mm

8 inches/
200 mm

12 inches/
300 mm

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