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TEMPERATURE/HUMIDITY TRANSMITTER - WALL (4-20 

M

A)

Product Specification/Installation Guide

  

590-1616-501A\SL-31080_REV2_11-17

  

DIMENSIONS

SPECIFICATIONS

Output

4 to 20 mA

Sensor

Temperature - Band gap semiconductor

Humidity

Supply Voltage

24 VDC

Tolerance of Resistance (Accuracy)

� 1.2° F (�0.6° C)
� 2% RH (from 15 to 95% RH)

Response Time

8 seconds for a 63% step

Environmental Operating Range 
(Transmitter)

45° F to 96° F; 0 to 100% RH
(7° C to 35° C); 0 to 100% RH

Front face

2.86” (72.7 mm)

1.06” (26.9 mm)

4.5” (114.3 mm)

Front

Wall

Side

NOTE: 

In a wall-mount application, 

the wall temperature and the 

temperature of the air within the 

wall cavity can cause erroneous 

readings. The mixing of room air 

and air from within the wall cavity 

can lead to condensation and 

premature failure of the sensor.
To prevent these conditions, seal 

the conduit leading to the junction 

box and seal the hole in the drywall 

by using an adhesive backed, foam 

insulating pad.

Mounting hardware is provided for 

both junction box and drywall 

installation.

1.  Pull the wires through the 

opening in the base plate.

2.  For junction box installation: 

Secure the base to the box 

using the #6-32 x 1/2” 

mounting screws provided.
For drywall installation: Drill 

two 3/16” holes 3-1/4” apart on 

center. Insert the drywall 

anchors and secure the base 

using the #6 x 1” sheet metal 

screws provided.

3.  Terminate the unit according to 

the guidelines in Termination 

on page 1.

4.  Attach the cover by latching it 

to the top of the base, rotating 

the cover down and snapping it 

into place.

5.  Secure the cover by backing 

out the lock-down screws 

using a 1/16” Allen wrench until 

they are flush with the bottom 

of the cover.

MOUNTING

Junction box

2” x 4”

Wall

Mounting

screws

Cover locking screws

1/16” Allen

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