Avtech RMA-ET1-SEN Quick start guide

AVTECH Software, Inc. Temperature & Environment Monitoring… Made Easy! AVTECH.com
Extreme Temperature Sensor (RMA-ET1-SEN)
Installation Note
Sensor ID Box
2" Probe
10'
Thermocouple
Coil
AVTECH’s Extreme Temperature Sensor monitors a wide range of
cold temperatures with a rugged thermocouple and
smart ID box that communicates readings
to your Room Alert analog sensor
(built-in or external). This reliable
sensor has a range of -328º F to
32º F (-200º C to 0º C), making
it perfect for your low temperature
threshold monitoring.
Extreme Temperature Sensor
Package Contents
•One (1) Extreme Temperature Sensor
•One (1) 10' thermocouple coil w/ 2" probe
•One (1) 18V power adapter
•One (1) 25' speaker wire
•Two (2) mounting screws
•One (1) Installation Note (You’re reading it now.)
Extreme Temperature Sensor And Power Ports
Install Your Extreme Temperature Sensor
Step 1: Locate the thermocouple and mount the sensor.
Your Extreme Temperature Sensor comes with a 10' thermocouple coil. When you are
considering the layout of your components, remember that the sensor housing is not designed
to withstand the same temperatures as the thermocouple.
Power
Adapter
Cord
Polarized
Speaker Wire
Copper (+)
Silver (-)
Thermocouple
Coil
Left Ri
g
ht
Do not use this sensor in hazardous (classified) locations or life safety applications.

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Locate the tip of the thermocouple coil where you wish to measure temperature. For accurate
readings, this location must be within the minimum and maximum threshold
supported by the sensor: -328º F to 32º F (-200º C to 0º C).
Place the sensor ID box in a warmer zone, as it has an operating range
of -40º F to 185º F (-40º to 85º C). You may mount it on a wall by
removing the cover and inserting the included mounting screws
through the mounting holes or simply place it on a flat surface.
Step 2: Connect the sensor to Room Alert.
Your sensor comes with one end of the 25' speaker wire already attached. Note that the wire
is polarized and color-coded as shown below:
Copper Positive (+)
Silver Negative (-)
Follow these steps to attach the other end of the 25' speaker wire to the input ports on your
built-in or external Room Alert Analog Sensor Input port:
1. Separate and strip the free ends of the speaker wire. Expose
about ¼" of wire.
2. Insert the silver (-) wire into the RIGHT (-) contact of the
Analog Sensor Input port.
3. Insert the copper (+) wire into the LEFT (+) contact of the
Analog Sensor Input port.
Early versions of the Room Alert 12E have this polarity reversed: LEFT = negative (-), and
RIGHT = positive (+). If you observe your voltage value flipping back and forth from “0” to
“5,” it’s likely that the speaker wires simply need to be inserted in the opposite contact.
Room Alert models 32W, 32E and 12E have built-in analog input ports; other models can
interface with analog sensors through AVTECH’s Temperature & Analog Sensor, which
connects to Room Alert’s Digital Port. For more information about AVTECH’s Temperature
& Analog Sensor, please see its Installation Note, visit AVTECH.com or contact a Product
Specialist.
Step 3: Connect to a power source.
Your Extreme Temperature Sensor comes with an 18V power adapter (100 – 240 VAC)
already attached. Plug the adapter into a power source.
Do not connect the analog inputs on AVTECH products or other electrical appliances
to live circuits of over 5 VDC.
Use only low-voltage 2-wire cable to connect dry contacts.

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Configure Your Extreme Temperature Sensor
With Room Alert’s Built-In Web Interface
Navigate to SettingsÆSensors in your Room Alert web interface. Scroll down to
“Analog Sensor Settings” when using Room Alert models that have a built-in analog input
port. The options shown below vary depending on the model.
1. Using the set of fields to the left of the screen, configure your alarm thresholds:
•First, select “Enabled” to enable the sensor on the Room Alert web interface and Device
Manager software.
•In “Sensor Label,” you may leave the default, “Analog Sensor 1,” or enter a descriptive
name of up to 15 alphanumeric characters, such as “Cryo 15” or “Freezer Rm Temp.”
•You may leave the “High” and “Low” for “Analog” at the default, 0—which means
no alarm is configured—or enter values of up to 6 characters. These values must be
within the range you enter in “Scale” in the next step, and cannot contain decimal
points. Your Room Alert monitor generates alerts based on those thresholds.
•In “Adjust,” you may leave the default, 0, or enter a value between 12.7 and -12.7 to
adjust the reading up or down if it differs from a known value.
•For models with the “Use Alarm Profile” feature: if you have configured Alarm
Profiles in the Alarm Options screen, you may choose one from the drop-down menu.
The default is “Profile 1.”
2. Using the set of fields on the right, configure your Room Alert (or external Analog
Sensor) to calculate your Extreme Temperature Sensor’s output signal to scale. Use the
settings shown below on the left for Fahrenheit and on the right for Celsius.

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•First, click “Enable” to turn on the “Reference,” “Scale” and “Units” fields.
•In “Reference,” enter the highest and lowest points of the analog sensor’s output
range. For the Extreme Temperature Sensor, the range is 0 to 5 volts, so enter 0 in
“Low” and leave the default of 5 in “High.”
•In “Scale,” enter the highest and lowest points of the scale that the “Reference”
reading will be converted to.
For the measurements in Fahrenheit, we are converting 0 to 5 volts output
to -328º F to 32º F, so enter -328 in “Low” and 32 in “High.”
For measurements in Celsius, we are converting 0 to 5 volts output to
-200º C to 0º C, so enter -200 in “Low” and 0 in “High.”
•In “Units,” enter a 1 to 3-character label for the unit type that your readings will
be measured in, so enter “F” for Fahrenheit or “C” for Celsius.
3. Click Accept Changes at the bottom of your screen to temporarily save your settings.
You may now navigate to another screen; however, if you close the web interface before
the next step, you will lose your changes.
4. Click Save Settings in the navigation bar to the left of your screen. Your Room Alert
will automatically reboot and commit your changes.
With AVTECH’s Device ManageR Software For Advanced Functionality
For advanced functionality and easy management of
multiple units, configure your sensor with AVTECH’s
Device ManageR, the software that comes FREE with
the purchase of any Room Alert monitor.
You may download the current version from your
customer account at AVTECH.com/Downloads while
your Maintenance, Support & Update Service (MSUS)
is current. If your service and access has lapsed, please
contact your Product Specialist about reactivating them.
Conversion to Fahrenheit Conversion to Celsius

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Extreme Temperature Sensor Features & Specifications
Environment Condition Monitored..................Extreme-cold ambient temperatures
Type Of Sensor...................................................Analog
Power Supply......................................................18V power adapter
Included ..........................................................Yes
Thermocouple
Included ..........................................................Yes
Length .............................................................10'
Operating Range .............................................-328º F to 32º F (-200º C to 0º C)
Steps Between Temperature Readings............Approximately 2.37º F (1.32º C)
Sensor Cable Type .............................................Low-voltage, 2-wire speaker cable
Included ..........................................................Yes
Length .............................................................25'
Maximum Extendible Length .........................900'
Sensor ID Box Operating Range.......................-40º F to 185º F (-40º to 85º C)
Compatible Products .........................................Room Alert 32E/W & 12E (built-in Analog Input Port);
.............................................................................Digital Temperature & Analog Sensor
AVT–140527.07