Winland Humid-alert ha-1 User manual

Economical Humidity Monitoring

Z1902 Rev C (Nov 2009)

ONE YEAR LIMITED WARRANTY

Winland Electronics, Inc. warrants that each product of its manufacture is free from defects

in material and factory workmanship, when properly installed and operated under normal

conditions according to the manufacturer’s instructions.

Manufacturer’s obligation under this warranty is limited to correcting, without charge, at its

factory any part of parts thereof which shall be returned to the factory, by the original retail

purchaser, transportation charges prepaid, within one year after purchase and which upon

examination shall disclose to the manufacturer’s satisfaction to have been originally defective.

Correction of such defects by repair to, or supplying of replacements for defective parts

shall constitute fulﬁllment of all obligations to purchaser. Repair service performed by the

manufacturer after one year from date of purchase will be for a reasonable service charge.

This warranty shall not apply to any of the manufacturer’s products which have been subject

to misuse, negligence or accident of which shall have been repaired or altered outside of the

manufacturer’s factory.

Manufacturer shall not be liable for loss, damage, or expense directly or indirectly from the use

of its product or from any other cause.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. WARRANTIES

OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE EXCLUDED, AS ARE

ALL OTHER REPRESENTATIONS TO THE USER-PURCHASER, AND ALL OTHER OBLIGATIONS OR

LIABILITIES, INCLUDING LIABILITY FOR INCIDENTAL AND CONSEQUENTIAL DAMAGES, ON THE

PART OF THE MANUFACTURER OR THE SELLER.

No person, agent or dealer is authorized to give any warranties on behalf of the manufacturer

nor to assume for the manufacturer any other liability in connection with any of its products.

SPECIFICATIONS

Power Requirements None

Sensing Range 20-80% RH ±10% RH

Sensing Element Nylon band

Response Time TC = 12 min.

Output Contact Ratings 1A resistive @ 24VDC;

50VA @ 24VAC

Operating Temperature 60 to 90°F (15 to 32°C)

Optimum Operating Temperature 70°F (21.1°C)

Weight 8 oz (0.23 kg)

Dimensions 5 x 3.18 x 2.43” (12.7 x 8.1 x 6.2 cm)

Case Material ABS plastic

Mounting Wall, wall box, or duct surface

CONTENTS

This package contains:

• 1 HA-1

• 2 Wire nuts

• 2 Lead wires

• 1 Owner’s Manual

1950 Excel Drive • Mankato, MN 56001 USA

(Tech Support 8:00am - 5:00pm CST)

(800) 635-4269 • (507) 625-7231 P • (507) 387-2488 F

www.winlandsecurity.com

HA-1

• 1 Rubber mounting gasket (duct mounting only)

• 1 Adhesive mounting template/instructions (duct

mounting only)

• 2 Mounting screws (for use with single-gang wall box)

FREQUENTLY ASKED QUESTIONS

Does this require power to operate?

No. The Humid•Alert does not require power to operate.

What is the contact rating output?

The contact rating output for the Humid•Alert is 50VA @ 24VAC; 1A resistive @ 24VDC.

How can I monitor for both high and low humidity levels?

The HA-1 will monitor only one limit, either high or low. The Winland EnviroAlert®

products are designed to monitor for both high and low limits. Several conﬁguration

options are available:

1. Use the EnviroAlert® EA800 with the wireless humidity sensor (EA-WHS).

2. Use the EnviroAlert® EA800 with the hard wired HA-III+.

3. Use the EnviroAlert® EA400 with the hard wired HA-III+.

4. Use the EnviroAlert® EA200 with the hard wired HA-III+.

For more information, visit the our web site at: www.winlandsecurity.com.

General Information

The Humid•Alert® humidity sensor provides reliable monitoring of an area where a single high

or low humidity limit is critical. The HA-1 monitors relative humidity from 20% to 80% RH,

activating an internal switch output when the critical limit is exceeded. This output can be used

to activate alarm systems, telephone dialers, or other warning devices. This is a single set-point

device; it can monitor for either a high or a low level, but not both. If additional monitoring

(high and low) is required, Winland’s EnviroAlert® line of products with humidity monitoring

accessories is recommended.

Theory of Operation

The HA-1 senses the ambient room humidity using a nylon-banded sensing element. The HA-1

requires no power to operate and provides a SPDT contact output when the single set-point

is met. Humidity should be expected to vary from room to room and from one area of a room

to another. Ventilation and airﬂow will greatly aﬀect relative humidity. The single set-point is

established by using the adjustment knob on the face of the unit.

Location

Choose a location for the Humid•Alert about ﬁve feet above the ﬂoor on an inside wall

with average room temperature and relative humidity conditions. The maximum ambient

temperature at the selected location must not exceed 125°F (51°C).

NOTE: Temperatures above 90°F (32.2°C) will adversely aﬀect the accuracy of the Humid•Alert.

Installation

The HA-1 has three mounting options: horizontally positioned single-gang wall box, direct wall

mount, and duct mount.

NOTE: Only use the rubber mounting gasket when mounting the HA-1 to a duct; use in any

other application will limit natural airﬂow reducing the accuracy of the unit.

To install onto a single-gang wall box:

1) Run low voltage wiring from alarm panel,

dialer, etc. to chosen location through the

wall into the single-gang wall box. Plug

openings in the sides and back of the

box to prevent drafts from aﬀecting the

Humid•Alert’s operation.

2) Remove the Humid•Alert cover by prying

with a screwdriver in the notch on the

bottom of the case (Figure 1).

3) Mount the base of the unit onto the single

gang wall box using the screws provided.

4) Make the wiring connections to the

Humid•Alert assembly using lead wires and

wire nuts supplied (Figure 2). Tuck wires into

the bottom of the base, and then snap the

cover assembly onto base (Figure 2).

To install directly onto a wall:

NOTE: If installing on sheetrock, use sheetrock

anchors and screws.

1) Drill a small hole in the wall and run low

voltage wiring from alarm panel, dialer,

etc. to the location chosen. Pull about six

inches of wire through the hole. Plug the

opening to prevent drafts from aﬀecting the

Humid•Alert’s operation.

2) Remove the Humid•Alert cover by prying

with a screwdriver in the notch on the

bottom of the case (Figure 1).

3) Mount the base of the unit onto the wall

using the hardware provided.

4) Make the wiring connections to the

Humid•Alert assembly using lead wires and

wire nuts supplied (Figure 2) Tuck wires into the bottom of the base, and then snap the

cover assembly onto base (Figure 2).

To install onto a duct: Follow instructions printed on the adhesive mounting template.

Setting the Humidity Limit

Select an acceptable high or low humidity limit by turning the adjustment knob on the face

of the unit. For all installation options it is recommended that once the unit is installed the

current ambient RH level is determined prior to setting the HA-1 high or low limit. To determine

the current RH level, turn the adjustment knob on the face of the unit until you hear a “click”.

The point at which you hear the output contact change is the current relative humidity level.

Always allow enough time for the sensor to acclimate to current room conditions before

considering the reading to be accurate.

NOTE: The HA-1 has a built-in 2-3% hysteresis (delay). Therefore, the unit will not set and reset

at exactly the same point. This spread will amount to approximately 2-3 %RH of the alarm set

point.

If protecting against low humidity, assume continuity between C and NC under non-alarm

conditions. When the actual humidity drops below the set point, C to NC will then be open. To

test this conﬁguration with the limit set below the current reading, rotate the knob clockwise

until the output contact changes.

If protecting against high humidity, assume continuity between C and NO under non-alarm

conditions. When the actual humidity rises above the set point, C to NO will then be open.

To test this conﬁguration with the limit set above the current reading, rotate the knob

counterclockwise until the output contact changes.

Figure 1

Figure 2

General Information

The Humid•Alert® humidity sensor provides reliable monitoring of an area where a single high

or low humidity limit is critical. The HA-1 monitors relative humidity from 20% to 80% RH,

activating an internal switch output when the critical limit is exceeded. This output can be used

to activate alarm systems, telephone dialers, or other warning devices. This is a single set-point

device; it can monitor for either a high or a low level, but not both. If additional monitoring

(high and low) is required, Winland’s EnviroAlert® line of products with humidity monitoring

accessories is recommended.

Theory of Operation

The HA-1 senses the ambient room humidity using a nylon-banded sensing element. The HA-1

requires no power to operate and provides a SPDT contact output when the single set-point

is met. Humidity should be expected to vary from room to room and from one area of a room

to another. Ventilation and airﬂow will greatly aﬀect relative humidity. The single set-point is

established by using the adjustment knob on the face of the unit.

Location

Choose a location for the Humid•Alert about ﬁve feet above the ﬂoor on an inside wall

with average room temperature and relative humidity conditions. The maximum ambient

temperature at the selected location must not exceed 125°F (51°C).

NOTE: Temperatures above 90°F (32.2°C) will adversely aﬀect the accuracy of the Humid•Alert.

Installation

The HA-1 has three mounting options: horizontally positioned single-gang wall box, direct wall

mount, and duct mount.

NOTE: Only use the rubber mounting gasket when mounting the HA-1 to a duct; use in any

other application will limit natural airﬂow reducing the accuracy of the unit.

To install onto a single-gang wall box:

1) Run low voltage wiring from alarm panel,

dialer, etc. to chosen location through the

wall into the single-gang wall box. Plug

openings in the sides and back of the

box to prevent drafts from aﬀecting the

Humid•Alert’s operation.

2) Remove the Humid•Alert cover by prying

with a screwdriver in the notch on the

bottom of the case (Figure 1).

3) Mount the base of the unit onto the single

gang wall box using the screws provided.

4) Make the wiring connections to the

Humid•Alert assembly using lead wires and

wire nuts supplied (Figure 2). Tuck wires into

the bottom of the base, and then snap the

cover assembly onto base (Figure 2).

To install directly onto a wall:

NOTE: If installing on sheetrock, use sheetrock

anchors and screws.

1) Drill a small hole in the wall and run low

voltage wiring from alarm panel, dialer,

etc. to the location chosen. Pull about six

inches of wire through the hole. Plug the

opening to prevent drafts from aﬀecting the

Humid•Alert’s operation.

2) Remove the Humid•Alert cover by prying

with a screwdriver in the notch on the

bottom of the case (Figure 1).

3) Mount the base of the unit onto the wall

using the hardware provided.

4) Make the wiring connections to the

Humid•Alert assembly using lead wires and

wire nuts supplied (Figure 2) Tuck wires into the bottom of the base, and then snap the

cover assembly onto base (Figure 2).

To install onto a duct: Follow instructions printed on the adhesive mounting template.

Setting the Humidity Limit

Select an acceptable high or low humidity limit by turning the adjustment knob on the face

of the unit. For all installation options it is recommended that once the unit is installed the

current ambient RH level is determined prior to setting the HA-1 high or low limit. To determine

the current RH level, turn the adjustment knob on the face of the unit until you hear a “click”.

The point at which you hear the output contact change is the current relative humidity level.

Always allow enough time for the sensor to acclimate to current room conditions before

considering the reading to be accurate.

NOTE: The HA-1 has a built-in 2-3% hysteresis (delay). Therefore, the unit will not set and reset

at exactly the same point. This spread will amount to approximately 2-3 %RH of the alarm set

point.

If protecting against low humidity, assume continuity between C and NC under non-alarm

conditions. When the actual humidity drops below the set point, C to NC will then be open. To

test this conﬁguration with the limit set below the current reading, rotate the knob clockwise

until the output contact changes.

If protecting against high humidity, assume continuity between C and NO under non-alarm

conditions. When the actual humidity rises above the set point, C to NO will then be open.

To test this conﬁguration with the limit set above the current reading, rotate the knob

counterclockwise until the output contact changes.

Figure 1

Figure 2