Johnson Controls Hx-68P3 Series Installation Guide

Hx-68P3 Series Outside Humidity and Temperature

24- 9647- 10, Rev. B

Transmitters

Installation Instructions

HE-68P3-0N000, HT-68P3-0N000

Refer to the QuickLIT website for the most up-to-date version of this document.

Application Requirements

The Hx-68P3 Series Outside Humidity and
Temperature Transmitter measures and transmits
outside relative humidity (RH) from 0 to 100% and
temperatures from -40 to 140
addition to RH, the transmitter offers selectable
parameters including dew point, wet bulb temperature,
and enthalpy.

The integral weather shield provides ventilation, blocks
direct and reflected solar radiation, and blocks
precipitation without affecting performance. Mount the
transmitter outside on a pole or on a side of a building.

IMPORTANT: The Hx-68P3 Series Outside

Humidity and Temperature Transmitter is intended
to provide an input to equipment under normal
operating conditions. Where failure or malfunction of
the humidity and temperature transmitter could lead
to personal injury or property damage to the
controlled equipment or other property, additional
precautions must be designed into the control
system. Incorporate and maintain other devices,
such as supervisory or alarm systems or safety or
limit controls, intended to warn of or protect against
failure or malfunction of the humidity and
temperature transmitter.

F (-40 to 60C). In

Part No. 24-9647-10, Rev. B

Issued March 2016

North American Emissions Compliance

United States

This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment is
operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area
may cause harmful interference, in which case users
will be required to correct the interference at their
own expense.

Canada

This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

IMPORTANT: Le Hx-68P3 Series Outside Humidity

and Temperature Transmitter est destiné à
transmettre des données entrantes à un équipement
dans des conditions normales de fonctionnement.
Lorsqu'une défaillance ou un dysfonctionnement du
humidity and temperature transmitter risque de
provoquer des blessures ou d'endommager
l'équipement contrôlé ou un autre équipement, la
conception du système de contrôle doit intégrer des
dispositifs de protection supplémentaires. Veiller
dans ce cas à intégrer de façon permanente
d'autres dispositifs, tels que des systèmes de
supervision ou d'alarme, ou des dispositifs de
sécurité ou de limitation, ayant une fonction
d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du humidity
and temperature transmitter.

Hx-68P3 Series Outside Humidity and Temperature Transmitters Installation

1

Instructions

Figure 1: Hx-68P3 Series Outside Humidity and Temperature Transmitter Features

FIG:Features

Radiation Shield

Radiation Shield Screws

Humidity Sensor and Temperature Sensor

(Under PTFE Membrane Filt er)

Transmi tter

Body

Screw

Te rm i na l

DIP

Switches

Pole Mounting

Screw

Pole

Mounting

Clamp

Set Screw

Cable Gland

Transmitter

Cover

Transmi tter

Cover Screw (Captured)

Installation

Parts Included

• relative humidity and temperature transmitter with

• conduit adaptor

• weather shield

• pole mounting clamp with screws (wall mount

• installation instructions

Tools Needed

• medium Phillips screwdriver

• small slotted screwdriver

cable gland

screws and anchors not included)

Hx-68P3 Series Outside Humidity and Temperature Transmitters Installation Instructions2

• wire cutters

• open-ended wrench

• zip ties

• cable clips

Dimensions

Figure 2: Hx-68P3 Series Outside Humidity and Temperature Transmitter Dimensions, in. (mm)

4-7/8 (122)

10-3/8 (264)

FIG:Dimensio ns

Cable Gland Suitable for

5/32 to 5/16 (4 to 8) Cable

Diameter 3/32 to 2-11/32 (25 to 60)

Diameter 7/32 (6)

Figure 3: DIP Switch Positions

Non-Metric

Td

h

Tw

Metric

RH

RH

RH

DIP Switch Settings

The DIP switches on the component board control the
humidity output parameter and scaling. Figure 3 shows
the default DIP switch settings.

Change the position of the DIP switches to the desired
setting.

Table 1: DIP Switch Positions for Metric Output

DIP Switch Position Analog Output

Parameter and Scaling

Relative Humidity (RH)
0 to 100%

Temperature (T)

-40 to 60C

Dewpoint (Td)

-40 to 60C

Temperature (T)

-40 to 60C

Enthalpy (h)

-40 to 460kJ/kg

Temperature (T)

-40 to 60C

Wet Bulb Temperature (Tw)

-40 to 60C

Temperature (T)

-40 to 60C

Hx-68P3 Series Outside Humidity and Temperature Transmitters Installation Instructions 3