Winland Electronics MTA-1 User Manual

Mechanical Temperature Monitoring

CONTENTS

This package contains:

• 1 MTA-1

• 2 Mounting Screws and 2 anchors

• 1 Installation/Operating Instructions Guide

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MTA-1

SPECIFICATIONS

Power Requirement No power required to operate.
Operating Temperature Alarm Use: 50 to 100° F (10 to 38° C)
Non-condensing environments only.
Alarm contacts may not function outside of this range.
Display Use: 30 to 100° F (-1 to 38° C)
Low Limit Adjust Range 30 to 90° F (-1 to 32° C)
High Limit Adjust Range 40 to 100° F (4 to 38° C)
Accuracy ±3° F (1.7° C)
Response Time TC = 14 minutes
Sensing Element Bimetallic Coil
Outputs Gold plated N.O. dry contacts
Contact Output Rating 50mA @ 12VDC
Weight 12 oz (340 g)
Dimensions 4.5 x 3.25 x 1” (11.4 x 8.3 x 2.5 cm)
Mounting Key slot
Case Material ABS
Warranty 1 Year Limited

© 2012 Winland Electronics, Inc.

D-011-0104 Rev C (08/2012)

LOCATION

In specifying the location and number of Temp˚Alerts® to install consider room size,
effectiveness of the ventilation system, and critical non-condensing (indoor only) environment
monitoring areas. If the building already has an energy management system, an easy rule
of thumb to follow is to install the MTA-1 near each thermostat. It should be mounted on a
wall or other vertical surface in the area where temperature is to be monitored. Make sure it
is well clear of windows, doors, or heat sources that could cause an inaccurate reading of air
temperature. When protecting a building against freeze damage, always install at least one
Temp˚Alert® on every level of the home or business.

INSTALLATION

Items needed:

• Standard screwdriver

• 5/16” wrench or nut driver

• 22-18 AWG twisted pair

1 – Opening the Case

Begin with the device facing you. Turn the device 90˚ to the right to expose the left end of
the case. Notice the left end of the base plate has been tooled with a single attachment hole
whereas the right end has not. Grasp the device with your right hand, position your thumb
on the center of the left end of the device above the seam with your remaining fingers on the
right end of the device (See Figure 1). Press hard with your thumb to disengage the latching
pin. Separate the two halves by pulling the device away from the base plate.

To open the case, squeeze
firmly with your thumb
and pull front face plate
away from the back plate.

3 – Select the High and Low Set Points

Each limit post is controlled by a locknut. Use a 5/16” nut driver or wrench to loosen (turn
counter clockwise) the high and low adjustment posts (See Figure 2). After loosening, slide
the posts to the proper temperature setting. Once the posts are in the proper setting locations,
simply retighten the lock nuts (turn clockwise). Avoid over tightening of the locknut.

View with Back
Cover Removed

Figure 2

4 – Making the Wiring Connections

To complete the installation, use three conductor stranded or solid wire to connect the MTA-1
to a control panel, dialer, etc. See Figure 3 for an example of a standard installation that utilizes
differentiated notification outputs for high and low temperature occurrences. If desired, the
HI limit wire and LOW limit wire may be connected together under a single zone. This is useful
whenever a limited number of open zones are available and you do not wish to differentiate
between a high and low temperature notification.

Figure 1

2 – Attach Base Plate to Mounting Surface

After you have determined a location for the device to be mounted, position the base plate of
the device on the mounting surface with your hand and mark the center point of the mounting
holes with a pen or other marking device. Mount the base plate to the wall using the included
mounting screws. Depending on the type of surface you are mounting to, you may need to
predrill holes to accept the mounting screws alone, or the plastic anchors and mounting
screws.

Diagram shown above will activate Zone 1 if the high
limit is exceeded and Zone 2 if the low limit is exceeded.

Figure 3

5 – Attach Front Cover to Base Plate

Grasp the device with your right hand by positioning your thumb on the center of the left end
of the device above the locking pin and positioning your remaining fingers on the right end of
the case (See Figure 1). Align the retaining tabs on the right edge of the case with the holes on
right edge of the base plate currently attached to the mounting surface. Press hard with your
thumb on the left end of the device and swing the device back toward the base plate until the
device seats properly into the base plate and the locking pin engages.

See testing procedure.

To insure proper operation, test weekly.

Operation and Testing Procedures

To manually activate the MTA-1 for testing, loosen the locknut of one limit post and slide
it toward the temperature indicator until it makes contact and temporarily tighten the
locknut nut. If installed correctly, this test procedure should activate the warning device to
which the MTA-1 is connected. After testing, loosen the locknut, return the limit arm to it
original set point and tighten the locknut. The same test procedure should also be repeated
with the second limit arm to verify proper operation.

IMPORTANT:

Do not use the MTA-1 in a cooler or freezer. Frost buildup and moisture

can cause the unit to malfunction. For cooler & freezer applications,

use an EnviroAlert® device with a remote probe.

WEEE Product Recovery/Recycling for EU Customers

In an effort to improve waste management in the European Union, the European Union has enacted directive
2002/96/EC on Waste Electrical and Electronic Equipment (WEEE Directive). According to the WEEE Directive, Winland
Electronics must take back waste electrical or electronic equipment covered under the WEEE Directive, at its cost, for
all product it puts on the market after July 1, 2006. The Return Process: Contact Winland at www.winland.com.

Applicable Directives

RoHS Directive 2002/95/EC; WEEE Directive 2002/96/EC

Statement of Compliance:

Winland Electronics, Inc. hereby declares this device is in compliance with all the applicable Directives 2002/95/EC,
2002/96/EC. This device is considered a passive EM device and is thereby excluded from the scope of the EMC directive
89/336/EEC and Low Voltage Directive 73/23/EEC.

ONE YEAR LIMITED WARRANTY

Winland Electronics, Inc. (“Winland”) warrants to the end user/purchaser that each product of its manufacture shall
be free from defects in material and factory workmanship for a period of one year from the date of purchase, when
properly installed and operated under normal conditions according to Winland’s instruction.
Winland’s obligation under this warranty is limited to correcting, without charge, at its factory any part or parts thereof
which shall be returned to the factory, by the original purchaser, transportation charges prepaid, within one year of the
date of purchase and which upon examination, shall disclose to Winland’s satisfaction to have been originally defective.
Correction of such defects by repair to, or supplying replacements for, defective parts shall constitute fulfillment of all
Winland’s obligations to purchaser under this limited warranty. Repair service performed by Winland after one year
from date of purchase will be for a reasonable service charge.
This limited warranty shall not apply to any of Winland’s products which have been subject to misuse, negligence
or accident or which have been repaired or altered outside of Winland’s factory. The warranty is void if the Product’s
housing or cover is removed.
Winland shall not be liable for loss, damage or expense resulting, directly or indirectly, from the use of its products or
any other cause.
This warranty shall be null and void in its entirety if: (i) the product is altered or modified in any way that is not
consistent with the manufacturer’s instructions, or (ii) the product is used with or connected to a device: (a) that
such product is not intended to be used with or connected to, (b) is not otherwise consistent with the manufacturer’s
instructions, or (c) is not otherwise approved by the manufacturer.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY
WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSES, NON-INFRINGEMENT AND TITLE, AND ANY
WARRANTIES ARISING FROM COURSE OF DEALING, USAGE OF TRADE OR OTHERWISE. ALL OTHER REPRESENTATIONS
MADE TO THE END USER/PURCHASER BY ANY OTHER PARTY ARE ALSO EXCLUDED.
WINLAND SHALL NOT BE LIABLE TO ANY PERSON FOR INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
OF ANY DESCRIPTION, WHETHER ARISING OUT OF WARRANTY OR OTHER CONTRACT, NEGLIGENCE OR OTHER TORT, OR
OTHERWISE. Under no circumstances shall Winland’s liability under this limited warranty exceed the purchase price
paid by the end user/purchaser for the product.
No person, agent or dealer is authorized to give warranties on behalf of Winland nor to assume for Winland any other
liability in connection with any of its products.

Symbols on the Product or Manual Labeling

For product disposal, ensure the following:

• Do not dispose of this product as unsorted municipal waste.

• Collect this product separately.

• Use collection and return systems available to you.

WEEE Waste Electrical and Electronic Equipment
RoHS Restriction of Hazardous Substances

TA-1

Single output temperature monitoring

• No power required to operate

• 50 to 130° F alarm range

• N.O. dry contacts

• Not for use in coolers and freezers

TA-2HL

Dual output temperature monitoring

• No power required to operate

• 50 to 130° F alarm range

• N.O. dry contacts

• Not for use in coolers and freezers

TA-40

Single output temperature monitoring

• No power required to operate

• N.C. above 40° F

• Not for use in coolers and freezers

EnviroAlert® EA200

Dual Zone Wireless Electronic Monitor:
Temperature, Humidity, Water Presence
EA200-12 (12VDC) and EA200-24 (24VDC)
Has one built-in ambient temperature probe
Connect up to 1 wired probe

EnviroAlert® EA400

Four Zone Wireless Electronic Monitor:
Temperature, Humidity, Water Presence
EA400-12 (12VDC) and EA400-24 (24VDC)
Connect up to 4 wired probes

EnviroAlert® EA800

Eight Zone Wireless Electronic Monitor:
Temperature, Humidity, Water, Closed Contact, 4-20mA
Connect up to 4 wireless and up to 4 wired probes
Automatic data logging transferable via USB stick
Probe data
Event and alarm history

EnviroAlert® EA800-ip

Eight Zone Wireless Electronic Monitor:
Temperature, Humidity, Water, Closed Contact, 4-20mA
Connect up to 4 wireless and up to 4 wired probes
Remote access via wired IP connection to
Programming and real-time data viewing
Probe data as well as alarm and event logs