Avtech RMA-ET1-SEN Installation and operation manual

Installation Note
AVTECH Software, Inc. Temperature & Environment Monitoring... Made Easy! AVTECH.com
Extreme Temperature Sensors
AVTECH
AVTECH’s Extreme Temperature Sensors
monitor a wide range of low and high
temperatures with a rugged RTD (resistance
temperature detector) and smart ID box
that communicates readings to your Room
Alert analog sensor (built-in or external). The
standard Extreme Low version has a range of
-328º F to 32º F (-200º C to 0º C), while the
standard Extreme High version has a range
of -40º F to 743º F (-40º C to 395º C). These
reliable sensors are perfect for your extreme
low or high temperature threshold monitoring.
Extreme Temperature Sensor Package Contents
• One (1) Extreme Temperature Sensor
• One (1) 10' RTD cable w/ 2" RTD probe
• One (1) 18V power adapter
• One (1) 25' speaker wire
Extreme Temperature Sensor
RTD
Cable
Right
Power
Adapter
Cord
Left
Polarized
Speaker
Wire
Copper (+)
Silver (-)
Install Your Extreme Temperature Sensor
Do not use this sensor in hazardous (classied) locations or life safety applications.
Step 1: Mount your Extreme Temperature Sensor.
Your Extreme Temperature Sensor comes with a 10' RTD cable. When you are considering
the layout of your components, remember that the sensor housing is not designed to
withstand the same temperatures as the RTD probe.
2" RTD Probe
10'
RTD
Cable

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Extreme Temperature Sensors (RMA-ET1-SEN & RMA-ET2-SEN)
Locate the RTD probe where you wish to measure temperature. For
accurate readings, this location must be within the minimum and
maximum threshold supported by the sensor, which is:
• -328º F to 32º F (-200º C to 0º C) in the standard Extreme Low version.
• -40° F to 743° F (-40° C to 395° C) in the standard Extreme High version.
Place the sensor box in a more temperate zone, as it has an operating
range of -40º F to 185º F (-40º C to 85º C). You may mount it on a
wall or simply place it on a at surface.
Step 2: Connect your Extreme Temperature Sensor to Room Alert.
Do not connect the analog inputs on AVTECH products to live circuits of over 5 VDC.
Use only low-voltage 2-wire cable to connect analog inputs.
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 ipping 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 32E and 12E have built-in analog input ports; Room Alert models
32E, 24E, 12E, 4E & 3E 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.

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Extreme Temperature Sensors (RMA-ET1-SEN & RMA-ET2-SEN)
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.
Sensor Features & Specications
Environment Condition Monitored Extreme low or high ambient temperatures
Type Of Sensor Analog
Power Supply 18V power adapter
Included Yes
RTD
Included Yes
Length 10'
Standard Low Temp Operating Range -328º F to 32º F (-200º C to 0º C)
Standard High Temp Operating Range -40º F to 743º F (-40º C to 395º C)
Custom Operating Range Available from -328º F to 743º F (-200º C to 395º C)
Steps Between Temperature Readings Standard Version: Approximately 2.37º F (1.32º C)
Sensor Cable Type Low-voltage 2-wire speaker cable
Included Yes
Length 25'
Maximum Extendible Length 100'
Sensor Box Operating Temperature -40º F to 185º F (-40º C to 85º C)
Compatible Products
Room Alert 32E/W, 32E & 12E
Through the built-in Analog Input Port(s),
Room Alert 32E/W, 32E, 24E, 12E, 4E & 3E
With a Temperature & Analog Sensor
AVT-171211-2.1.0

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Congure Your Analog Sensor
Congure Your Analog Sensor
Use Room Alert’s Built-In Web Interface
Navigate to Settings Sensors in the web interface of your Room Alert. The options
you see below will vary depending on the model.
If you connected your sensor directly
to your Room Alert 32E or 12E via its
built-in analog port:
If you connected your sensor to your
Room Alert via a Temperature & Analog
Sensor:
1. Scroll to Analog Sensor Settings. 1. Scroll to your external digital sensor(s)
and nd the digital sensor you connected
your Temperature & Analog Sensor to.
2. Enable the sensor by selecting
Enabled next to the High/Low/
Adjust elds. The built-in analog
sensor will not appear in the Room
Alert web interface, Device ManageR,
your RoomAlert.com account or SNMP
program unless it is enabled.
2. Select Temp/Analog from the Sensor
Type drop-down menu. The analog
sensor elds will then appear.
3. Then, congure the Reference/Scale and Units elds, shown below at their defaults, to
calculate your analog sensor’s output signal to scale.
• Click Enable to turn on the Reference, Scale and Units elds.

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Congure Your Analog Sensor
• In Reference, enter the highest and lowest points of the analog sensor’s output
signal range. (See Reference/Scale/Unit Settings For AVTECH Analog Sensors in this
document for the correct settings.)
• In Scale, enter the highest and lowest points of your analog sensor’s scale. (See
Reference/Scale/Unit Settings For AVTECH Analog Sensors in this document for the
correct settings.)
• In Units, enter a 1 to 3-character label for the unit type that your readings will be
measured in—“A” or “Amp” for amperage or “F” for Fahrenheit, for example. Note
that this eld is merely a label and does not aect any of the calculations.
4. Next, ll in the High/Low threshold elds, shown below at their defaults.
• In Sensor Label, you may leave the default, “Analog Sensor X,” or enter something
more descriptive of up to 15 characters. You may use the following characters in
sensor labels: letters, numbers, spaces, hyphens (-), underscores (_) and periods
(.).
• In High and Low, you may leave the default, 0—which means no alarm is
congured—or enter values for high and low thresholds. These values must be
within the range you entered in Scale, and cannot contain decimal points. Your
Room Alert generates alerts based on these thresholds.
• In Adjust, you may leave the default, 0, or enter a value to adjust the analog
reading if it diers from a known value at that location.
• In Use Alarm Prole, which controls light towers and relays on your Room Alert, you
may leave the default, Prole 1, or choose another prole from the drop-down
menu.
4. Select Save Settings at the top or bottom of the page. Your Room Alert will
automatically reboot and commit your changes

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Congure Your Analog Sensor
Reference/Scale/Unit Settings For AVTECH Analog Sensors
AVTECH’s Current Loops
Current Loop 1 Current Loop 2
High Low High Low
Reference 5 0 Reference 5 0
Scale Scale
With the jumper on With the jumper on
High (0 to 50 A) 50 0 High (0 to 250 A) 250 0
Middle (0 to 20 A) 20 0 Middle (0 to 200 A) 200 0
Low (0 to 10 A) 10 0 Low (0 to 100 A) 100 0
Units A (or Amp) Units A (or Amp)
AVTECH’s Standard Extreme Temperature Sensors
The values below apply to our standard Extreme Temperature Sensors. If you ordered
a customized version, please use your custom Reference and Scale instead of these
values.
Standard Extreme Low Temperature Sensor
Conversion To Fahrenheit Conversion To Celsius
High Low High Low
Reference 5 1 Reference 5 1
Scale 32 -328 Scale 0 -200
Units FUnits C
Standard Extreme High Temperature Sensor
Conversion To Fahrenheit Conversion To Celsius
High Low High Low
Reference 5 1 Reference 5 1
Scale 743 -40 Scale 395 -40
Units FUnits C
AVTECH’s Analog Rescaling Module (ARM)
High Low
Reference 5 1
Scale* See note
below.
Units*
*Scale and Units depend on the output of the analog sensor you’ve connected to ARM.
AVT-171211-1.2.0