MONNIT ALTA Wireless Resistance Sensor User Guide
- June 5, 2024
- MONNIT
Table of Contents
- ABOUT THE WIRELESS RESISTANCE SENSOR
- ORDER OF OPERATIONS
- SETUP AND INSTALLATION
- SETTING UP YOUR RESISTANCE SENSOR
- Industrial Batteries
- SENSOR OVERVIEW IN iMONNIT
- ACTIONS OVERVIEW
- SECURITY
- SUPPORT
- WARRANTY INFORMATION
- CERTIFICATIONS
- SAFETY RECOMMENDATIONS – READ CAREFULLY
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Remote Monitoring for Business
Wireless Resistance Sensor
USER GUIDE
ABOUT THE WIRELESS RESISTANCE SENSOR
The ALTA Wireless Resistance Sensor reports the resistance across a load. It can be connected to any kind of passive (no voltage) variable resistance device.
- Measures up to 145 KOhms.
- Accurate to ± 1.5% (FS) with user calibration.
- Interfaces with any variable resistance device.
The ALTA Wireless Resistance Sensor reads the resistance across any resistive
device and reports back the measured resistance. The resistance sensor leads
are meant to connect passive devices only, connecting the sensor leads to any
voltage or power source may damage the sensor. It is programmed to sleep for a
user-given time interval (heartbeat) and then wake up, convert the analog
data, mathematically compute the resistance, and transmit the data to the
gateway, where it is then logged into the cloud service. The user can
configure defined thresholds and have the system alert on threshold breaches.
The ALTA Resistance Sensor is a passive sensor. As such, it should be used for
passive-resistive loads only. The user will connect the two leads of the
sensor to either side of a purely resistive load to determine the resistance.
The sensor has two regions of operation:
Low Region: Meant for loads of 5k Ohms and below.
High Region: Meant for loads above 5k Ohms and below 250k Ohms.
These regions are inherent in the firmware and are not subject to change. Each
region has its own settings in firmware, so they calculate resistance a bit
differently.
There is a crossover region(3.9k – 5.6k) in which it is important NOT to
calibrate the sensor when a load in this region is hooked up. Does this have
the possibility of confusing the sensor and calibrating the sensor to the
wrong range? (i.e. You want to calibrate the sensor to 4k Ohms which is in the
low region, however, the sensor calibrates it to the high region and changes
the high region settings instead of the low region settings). Additionally,
the sensor is most accurate between 2.36k – 225k, so during calibration, if
either the? Observed Value? or the? Measured Value? exceed 225k or are below
2.36k, the calibration will fail.
WARNING: Applying a voltage to this sensor will cause damage to it.
EXAMPLE APPLICATIONS
- Resistance Monitoring
- Battery Monitoring
- Transducer Interfacing
ORDER OF OPERATIONS
It is important to understand the order of operations for activating your sensor. If performed out of sequence, your sensor may have trouble communicating with iMonnit. Please perform the steps below in the order indicated to make sure you are performing your set-up correctly.
-
Create an iMonnit Account (If new user).
-
Register all sensors and gateways to a network in iMonnit.
Sensors can only communicate with gateways on the same iMonnit network. -
Connect/power on the gateway and wait till it checks into iMonnit.
-
Power on the sensor and verify it checks into iMonnit.
We recommend powering the sensor on near the gateway then moving to the installation location, checking signal strength along the way. -
Configure sensor for use (This can be done at any point after step 2)
-
Install the sensor in final location.
Note: For information on setting up iMonnit and the gateway refer to the
iMonnit User Guide and the gateways user guide.
Note: Device-specific setup is covered in more detail in the following
sections.
SETUP AND INSTALLATION
If this is your first time using the iMonnit online portal, you will need to
create a new account. If you have already created an account, start by logging
in. For instructions on how to register and set up your iMonnit account,
please consult the iMonnit User Guide.
STEP 1: ADD DEVICE
-
Add the sensor on iMonnit.
Add the sensor to your account by choosing Sensors in the main menu. Navigate to the Add Sensor button. -
Find the device ID. See Figure 1.
The Device ID (ID) and Security Code (SC) are necessary to add a sensor. These can both be located on the label on the side of your device. -
Adding your device. See Figure 2.
You will need to enter the Device ID and the Security Code from your Sensor in the corresponding text boxes. Use the camera on your smartphone to scan the QR code on your device. If you do not have a camera on your phone, or the system is not accepting the QR code, you may enter the Device ID and Security Code manually.
- The Device ID is a unique number located on each device label.
- Next, you’ll be asked to enter the Security Code from your device. A security code consists of letters and must be entered in upper case (no numbers). It can also be found on the barcode label of your device.
When completed, select the Add Device button.
STEP 2: SETUP
Select your use case. See Figure 3.
Unlike most sensors, choosing a use case in Step 2 of adding this sensor
does not give you the option to customize your settings. These will need to be
adjusted in the settings tab for your device. See page 9 for instructions.
Select the Skip button when completed.
STEP 3: VALIDATION
Check your signal. See Figure 4.
The validation checklist will help you ensure your sensor is communicating
with the gateway properly and you have a strong signal. Checkpoint 4 will only
complete when your sensor achieves a solid connection to the gateway. Once you
insert the batteries (or flip the switch on an industrial sensor) the sensor
will communicate with the gateway every 30 seconds for the first few minutes.
Select the Save button when completed.
STEP 4: ACTIONS
Choose your actions. See Figure 5.
Actions are the alerts that will be sent to your phone or email in the
event of an emergency. Low battery life and device inactivity are two of the
most common actions to have enabled on your device. See page 13 for how to set
actions for your sensor.
Select the Done button when completed.
SETTING UP YOUR RESISTANCE SENSOR
When you are finished adding the sensor to your account, the next step is to
insert the battery. The type of battery you use will depend on the category of
your sensor. ALTA Wireless Resistance Sensors will either be powered by a
commercial coin cell, AA, or an industrial battery.
INSTALLING BATTERIES
ALTA commercial sensors are powered by AA or CR2032 coin cell batteries.
Industrial sensors need a 3.6V Lithium battery supplied from Monnit or another
industrial battery supplier. Monnit encourages customers to recycle all old
batteries.
Coin Cell
The lifespan of a standard CR2032 coin cell battery in an ALTA Resistance
Sensor is up to 2 years.
Install a coin cell battery by first taking the sensor and pinching the sides
of the enclosure. Gently pull up the enclosure, separating the sensor from its
base. Then slide a new CR2032 coin cell battery with the positive side facing
toward the base. Press the enclosure back to together; you’ll hear a small
click.
Lastly, open iMonnit and select Sensors from the navigation menu. Verify that iMonnit is showing the sensor has a full battery level.
AA Batteries
The standard version of this sensor is powered by two replaceable 1.5 V AA-
sized batteries (included with purchase). The typical battery life is up to 10
years. This sensor is also available with a line power option. The line-
powered version of this sensor has a barrel power connector allowing it to be
powered by a standard 3.0 3.6 V power supply. The line-powered version also
uses two standard 1.5 V AA batteries as backup for uninterrupted operation in
the event of a line power outage. ****
Power options must be selected at the time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements. Place batteries in the device by first taking the sensor and sliding the battery door open. Insert fresh AA batteries in the carriage, then shut the battery door. Complete the process by opening up iMonnit and selecting Sensors from the main navigation menu. Verify that iMonnit is showing the sensor has a full battery level.
Industrial Batteries
3.6V Lithium batteries for the Industrial Wireless Resistance Sensor is supplied by Monnit. The ALTA battery life for the Industrial battery is up to 7 years. Industrial sensors come shipped with a 3.6V Lithium battery already installed. They do not need to be taken apart for battery installation and are not rechargeable. Open iMonnit and select Sensors from the main navigation menu. Verify that iMonnit is showing the sensor has a full battery level. Replace the battery door by screwing in the four corners. In order for the sensor to function properly, you will need to attach the included antenna. Simply screw the antenna onto the barrel connector on the top of the device. Make sure to snug the antenna connection, but do not overtighten. When placing the sensor, make sure to mount the sensor with the antenna oriented straight up (vertical) to ensure the best wireless radio signal.
Since the electronics are sealed within the sensor housing, we have added an
“On/Off” switch to the unit for your convenience. If you are not using the
sensor, simply leave the button in the off position to preserve battery life.
If the sensor needs to be reset for any reason, you can simply cycle the power
by turning the switch to the “Off” position and waiting 30 seconds before
powering back on.
MOUNTING THE SENSOR
Monnit Wireless Resistance Sensors feature mounting flanges and can be
attached to most surfaces using the included mounting screws or double-sided
tape.
The Resistance Sensor is for passive-resistive loads only. A part bridging the
gap between the load and the sensor must be purchased from a third-party
vendor. Hook up the sensor to the load by attaching this part to the two metal
ends forking off from the bottom of the lead. It does not matter with the end
is attached to this part.
ANTENNA ORIENTATION
In order to get the best performance out of your ALTA Wireless Sensors, it is
important to note proper antenna orientation and sensor positioning. Antennas
should all be oriented in the same direction, pointing vertically from the
sensor. If the sensor is mounted flat on its back on a horizontal surface, you
should bend the antenna as close to the sensor housing as possible giving you
the most amount of antenna pointing vertical. You should make the antenna wire
as straight as possible, avoiding any kinks and curving of the wire. Sensors
must be at least 3 ft. away from other sensors and the wireless gateway to
function.
SENSOR OVERVIEW IN iMONNIT
Select Sensors from the main navigation menu on iMonnit to access the sensor
overview page and begin making adjustments to your Resistance Sensor.
MENU SYSTEM
A. Details – Displays a graph of recent sensor data
B. History – List of all past heartbeats and readings
C. Actions – List of all actions attached to this sensor
D. Settings – Editable levels for your sensor
E. Calibrate – Set your sensor to read more accurately
F. Scale – Change the scale of readings for your sensor
Directly under the tab bar is an overview of your sensor. This allows you to
see the signal strength and the battery level of the selected sensor. A
colored dot in the left corner of the sensor icon denotes its status.
– Green indicates the sensor is checking in and within user-defined safe
parameters.
– Red indicates the sensor has met or exceeded a user-defined threshold
or triggered event.
– Gray indicates that no sensor readings are being recorded, rendering
the sensor inactive.
– Yellow indicates that the sensor reading is out of date, due to perhaps
a missed heartbeat check-in.
Details View
The Details View will be the first page you see upon selecting which sensor
you would like to modify.
A. The sensor overview section will be above every page. This will
consistently display the present reading, signal strength, battery level, and
status.
B. The Recent Readings section below the chart shows your most recent
data received by the sensor.
C. This graph charts how the sensor fluctuates throughout a set date
range. To change the date range displayed in the graph, navigate up to the top
of the Readings Chart section in the right-hand corner to change the form
and/or to date.
Readings View
Selecting the Readings Tab within the tab bar allows you to view the sensor’s
data history as time-stamped data.
– On the far right of the Sensor History Data is a cloud icon. ( ) Selecting
this icon will export an Excel file for your sensor into your download folder.
Note: Make sure you have the date range for the data you need input in the
From and To text boxes. This will be the previous day by default. Only the
first 2,500 entries in the selected date range will be exported.
The data file will have the following fields:
MessageID : Unique identifier of the message in our database.
Sensor ID: If multiple sensors are exported, you can distinguish between
the sensors using this number even if the names are the same.
Sensor Name : The name you have given the sensor.
Date: The date the message was transmitted from the sensor.
Value: Data presented with transformations applied, but without
additional labels.
Formatted Value : Data transformed and presented as it is shown in the
monitoring portal.
Raw Data: Raw data as it is stored from the sensor.
Sensor State: Binary field is represented as an integer containing
information about the state of the sensor when the message was transmitted.
(See Sensor State explained below.)
Alert Sent: Boolean indicating if this reading triggered a notification
to be sent from the system.
Sensor State
The value presented here is generated from a single byte of stored data. A
byte consists of 8 bits of data that we read as Boolean (True (1) / False (0))
fields.
When broken into individual bits, the State byte contains the following
information: aaaabcde
STS: This value is specific to the sensor profile and is often used to
indicate error states and other sensor conditions.
UNUSED : This sensor does not use these bits.
AWARE: Sensors become aware when critical sensor-specific conditions are
met. Going aware can cause the sensor to trigger and report before the
heartbeat and cause the gateway to forward the data to the server immediately
resulting in near-immediate transmission of the data.
TEST: This bit is active when the sensor is first powered on or reset and
remains active for the first 9 messages when using default configurations.
STS Specific Codes :
0 = No problems, sensor is functioning normally.
1 = Open circuit detected in lead.
2 = Short circuit detected in lead.
3 = Range error. Temperature is reading outside of -40 F and 257 F (-40 C and
125 C).
If the user has calibrated the sensor, the Calibrate Active field is set to
False (0) and the sensor is operating inside the Min and Max Thresholds, the
bits look like 00000000, this is represented as 0.
If the sensor is using factory calibrations and it is outside the threshold,
the bit values are 00010010 and are represented as 18(16+2 because both the
bit in the 16 value is set and the bit in the 2 value is set).
Settings View
To edit the operational settings for a sensor, choose the Sensor option in
the main navigation menu then select the Settings tab to access the
configuration page. A. Sensor Name is a unique name you give the sensor to
easily identify it in a list and in any notifications.
B. The Heartbeat Interval is how often the sensor communicates with the
gateway if no activity is recorded.
C. Aware State Heartbeat is how often the sensor communicates with the
gateway while in an Aware State.
D. Senso r is on is where you can set to have your sensor on all day or
set times during the day where you wish it to be active.
E. Assessments per Heartbeat is how many times between heartbeats a
sensor will check its measurements against its thresholds to determine whether
it will enter an Aware State.
F. Minimum (Ohms) is the minimum reading the sensor should record before
entering an Aware State.
G. Maximum (Ohms) is the maximum reading the sensor should record before
entering an Aware State.
H. The Aware State Buffer is a buffer to prevent the sensor from bouncing
between Standard Operation and Aware State when the assessments are very close
to a threshold. For example, if a Maximum Threshold is set to 90° and the
buffer is 1°, then once the sensor takes an assessment of 90.1° it will remain
in an Aware State until dropping to 89.0°.
Similarly, at the Minimum Threshold, the temperature will have to rise a
degree above the threshold to return to Standard Operation.
I. In small sensor networks, the sensors can be set to synchronize their
communications. The default setting off allows the sensors to randomize their
communications, therefore,
maximizing communication robustness. Setting this will synchronize the
communication of the sensors.
J. Failed transmissions before link mode is the number of transmissions
the sensor sends without a response from a gateway before it goes to battery-
saving link mode. In link mode, the sensor will scan for a new gateway and if
not found will enter battery-saving sleep mode for up to 60 minutes before
trying to scan again. A lower number will allow
sensors to find new gateways with fewer missed readings. Higher numbers will
enable the sensor to remain with its current gateway in a noisy RF environment
better. (Zero will cause the sensor to never join another gateway, to find a
new gateway the battery will have to be cycled out of the sensor.)
The default heartbeat interval is 120 minutes or two hours. It is recommended
that you do not lower your heartbeat level too much because it will drain the
battery.
Finish by selecting the Save button.
Note: Be sure to select the Save button anytime you make a change to any of
the sensor parameters. All changes made to the sensor settings will be
downloaded to the sensor on the next sensor heartbeat (check-in). Once a
change has been made and saved, you will not be able to edit that sensor’s
configuration again until it has downloaded the new setting.
Calibrate View
If a sensor type has readings that need to be reset, the Calibrate tab will be
available for selection in the sensor tab bar.
To calibrate a sensor, ensure that the environment of the sensor and other
calibration devices are stable.
Enter the actual (accurate) reading from the calibration device into the text
field. If you need to change the unit of measurement you can do that here.
Press Calibrate.
To ensure that the calibration command is received prior to the sensor’s
next check-in, press the control button on the back of the gateway, once, to
force communication (Cellular and Ethernet gateways).
After pressing the “Calibrate” button and choosing the gateway button, the
server will send the command to calibrate the specified sensor to the gateway.
When the sensor checks in, it will send the pre-calibration reading to the
gateway, then receive the calibration command and update it’s configuration.
When the process is completed, it will send a Calibration Successful message.
The server will display the sensor’s last pre-calibrated reading for this
check-in, then all future readings from the sensor will be based on the new
calibration setting.
It is important to note that after calibrating the sensor, the sensor reading
returned to the server is based on pre-calibration settings. The new
calibration settings will take effect on the next sensor heartbeat.
Note: If you would like to send the changes to the sensor right away,
please remove the battery(s) for a full 60 seconds, then re-insert the
battery(s). This forces the communication from the sensor to the gateway and
this the message to make a change from the gateway back to the sensor. (If the
sensors are industrial sensors, turn the sensor off for a full minute, rather
than removing the battery).
Creating a Calibration Certificate
Creating a sensor calibration certificate will mask the calibration tab from
those who should not have permission to adjust these settings. Permissions for
self-certifying a calibration must be enabled in user permissions.
Directly below the calibrate button is the selection to “Create Calibration
Certificate.
A. The Calibration Facility Field will be filled. Select the dropdown
menu to change your facility.
B. The Certificate Valid Until field must be set one day after the data
contained in the “Date Certified” field.
C. “Calibration Number ” and “Calibration Type” are unique values to your
certificate.
D. If necessary, you can reset the heartbeat interval here to 10 minutes, 60
minutes, or 120 minutes. By default, this will be set to no change.
E. Choose the “Save” button before moving on.
When the new certificate is accepted, the Calibration tab will change to a
Certificate tab.
You will still be able to edit the certificate by choosing the Certificate Tab
and navigating down to “Edit Calibration Certificate.”
The tab will revert back to “Calibrate” after the period for the certificate
ends.
Scale View
Choose the text box to trigger a pop-up window allowing you to change the
scale. Select the scale you prefer and push Set.
Press the Save button to complete your adjustment.
Changing units here will also change units on the sensor physical display.
Units changed locally on the sensor itself will not be changed in this setting
in iMonnit.
ACTIONS OVERVIEW
Device notifications can be created, deleted, and edited by selecting the
Actions Tab in the tab bar.
You can toggle the Action Trigger on or off by selecting the switch under
Current Action Triggers. See Figure 18.
CREATING AN ACTION
Actions are triggers or alarms set to notify you when a sensor reading
identifies that
immediate attention is needed. Types of actions include sensor readings,
device inactivity, and scheduled data. Any one of these can be set to send a
notification or trigger an action in the system.
Choose Actions in the main navigation menu.
A list of previously created actions will display on the screen. From here,
you have the ability to filter, refresh and add new actions to the list.
Note: If this is your first time adding an action, the screen will be
blank.
From the Actions page, tap Add Action in the left-hand corner.
Step 1: What triggers your action?
The drop-down menu will have the following options for Action Types (See
Figure 21):
-
Sensor Reading: Set actions based on activity or reading.
-
Device Inactivity: Actions when the device doesn’t communicate for an extended period of time.
-
Advanced: Actions based on advanced rules, such as comparing past data points with current ones.
-
Scheduled: These actions are performed on a time set basis.
-
Select Sensor Reading from the drop-down menu
-
A second drop-down menu will appear. From here, you will be able to see a list of the different types of sensors registered to your account. Choose Button in the drop-down menu.
-
Next, you will be asked to input the trigger settings. You have the option of setting this trigger to detect whether a button has been Pressed or Not Pressed.
Press the Save button.
Step 2: Actions
- Press the Add Action button under the information header, available action types will then be presented in a select list.
- Notification Action: Specify account users to receive a notification when this event triggers.
- System Action: Assign actions for the system to process when this event triggers.
- Choose Notification Action from the notification list.
A. Input the subject for the notification. See Figure 23.
B. Customize the message body for the notification. See Figure 23.
C. Recipient list identifies who will receive the notification. See Figure 24.
- Select the icon next to a user to specify how they will be notified
- Choose if you want notifications sent immediately when triggered, or if you want a delay before sending and press Set.
- A green icon indicates the users that will receive the notifications.
- If a delay has been selected, the delay time will display beside the icon.
Select System Action from the Add Action list. See Figure 25.
- Scroll down to the System Action section.
- The Action to be done select list has the following options:
Acknowledge : Automatically signals that you have been notified of an
action. When an action has been triggered, alerts will continue processing
until the action returns to a value that no longer triggers an action.
Full Reset: Reset your trigger so it is armed for the next reading.
Activate: Enable an action trigger.
Deactivate: Disable an action trigger.
Step 3: Action Name and Devices
- By default, the sensor(s) will not be assigned to the action conditions you ve just set. To assign a sensor, find the device(s) you want to designate for this action and select it. Selected sensor boxes will turn green when activated. Choose the sensor box again to unassign the sensor from the action. See Figure 26.
- Continue toggling the sensor(s) corresponding to this new action until you are satisfied with your selection. These can be adjusted later by returning to this page.
Press the Check-mark button to complete the process.
SECURITY
Data security and integrity is paramount at Monnit. Each layer of the system
is secured using encryption and protocols designed to protect customer data
and information. The system consists of a sensor(s), gateway(s), and iMonnit
software. One or more sensors communicate with iMonnit software through a
gateway.
SENSOR TO GATEWAY
Sensor and gateway radio modules are purpose-built devices with proprietary
unreadable firmware, which means the sensor cannot be physically hacked or re-
purposed for malicious purposes. This adds a strong level of inherent security
even before considering encryption. Data transmission between the sensor and
gateway are secured using Encrypt-RF Security (Diffie-Hellman Key Exchange +
AES-128 CBC for sensor data messages). Beyond the encryption, data
transmissions are also structurally verified and CRC checked before they are
passed up to iMonnit or down to the sensor, this ensures the integrity of the
data itself.
GATEWAY TO IMONNIT
Data transmissions between the gateway and iMonnit software are secured using
256-bit, bank-level encryption.
Monnet
Access is granted through the iMonnit user interface, or an Application
Programming Interface (API) safeguarded by 256-bit Transport Layer Security
(TLS 1.2) encryption. TLS is a blanket of protection to encrypt all data
exchanged between iMonnit and you. The same encryption is available to you
whether you are a Basic or Premiere user of iMonnit. You can rest assured that
your data is safe with iMonnit.
SENSOR PRINTS
Sensor prints utilize a shared key between the software and the sensor to
ensure that once the data comes to iMonnit it is guaranteed to be from the
device identified by the sensor print. If this feature is purchased for the
device (via iMonnit software) the data of the device becomes impossible to
spoof by any malicious device.
SUPPORT
For technical support and troubleshooting tips please visit our support library online at monnit.com/support/. If you are unable to solve your issue using our online support, email Monnit support at support@monnit.com with your contact information and a description of the problem, and a support representative will call you within one business day. For error reporting, please email a full description of the error to support@monnit.com.
WARRANTY INFORMATION
(a) Monnit warrants that Monnit-branded products (Products) will be free from
defects in materials and workmanship for a period of one (1) year from the
date of delivery with respect to hardware and will materially conform to their
published specifications for a period of one (1) year with respect to the
software. Monnit may resell sensors manufactured by other entities and are
subject to their individual warranties; Monnit will not enhance or extend
those warranties. Monnit does not warrant that the software or any portion
thereof is error-free. Monnit will have no warranty obligation with respect to
Products subjected to abuse, misuse, negligence or accident. If any software
or firmware incorporated in any Product fails to conform to the warranty set
forth in this Section, Monnit shall provide a bug fix or software patch
correcting such non-conformance within a reasonable period after Monnit
receives from Customer (i) notice of such non-conformance, and (ii) sufficient
information regarding such non-conformance so as to permit Monnit to create
such bug fix or software patch. If any hardware component of any Product fails
to conform to the warranty in this Section, Monnit shall, at its option,
refund the purchase price less any discounts, or repair or replace
nonconforming Products with conforming Products or Products having
substantially identical form, fit, and function and deliver the repaired or
replacement Product to a carrier for land shipment to the customer within a
reasonable period after Monnit receives from Customer (i) notice of such non-
conformance, and (ii) the non-conforming Product provided; however, if, in its
opinion, Monnit cannot repair or replace on commercially reasonable terms it
may choose to refund the purchase price. Repair parts and replacement Products
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Customer may return all Products for repair or replacement due to defects in
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year from the Customer’s original date of receipt.
(b) As a condition to Monnit’s obligations under the immediately preceding
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shall run solely to the Customer, and Monnit shall have no obligation to
customers of the Customer or other users of the Products.
Limitation of Warranty and Remedies.
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DEVICES OR NUCLEAR APPLICATIONS. PRODUCTS ARE NOT DESIGNED FOR AND SHOULD NOT
BE USED IN ANY OF THESE APPLICATIONS.
CERTIFICATIONS
United States FCC This equipment has been tested and found to comply with the limits for a Class B digital devices, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Warning: Changes or modifications not expressly approved by Monnit could
void the user’s authority to operate the equipment. RF Exposure
WARNING: To satisfy FCC RF exposure requirements for mobile transmitting
devices, the antenna used for this transmitter must not be co-located in
conjunction with any antenna or transmitter.
Monnit and ALTA Wireless Sensors:
This equipment complies with the radiation exposure limits prescribed for an
uncontrolled environment for fixed and mobile use conditions. This equipment
should be installed and operated with a minimum distance of 23 cm between the
radiator and the body of the user or nearby persons.
All ALTA Wireless SensorsContain FCC ID: ZTL-G2SC1. Approved Antennas
ALTA devices have been designed to operate with an approved antenna listed
below and have a maximum gain of 14 dB. Antennas having a gain greater than 14
dBi are strictly prohibited from use with this device. The required antenna
impedance is 50 ohms.
– Xianzi XQZ-900E (5 dBi Dipole Omnidirectional)
– HyperLink HG908U-PRO (8 dBi Fiberglass Omnidirectional)
– HyperLink HG8909P (9 dBd Flat Panel Antenna)
– HyperLink HG914YE-NF (14 dBd Yagi)
– Specialized Manufacturing MC-ANT-20/4.0C (1 dBi 4?whip)
Canada (IC)
Under Industry Canada regulations, this radio transmitter may only operate
using an antenna of a type and maximum (or lesser) gain approved for the
transmitter by Industry Canada. To reduce potential radio interference to
other users, the antenna type and its gain should be so chosen that the
Equivalent Isotropically Radiated Power (E.I.R.P.) is not more than that
necessary for successful communication.
The radio transmitters (IC: 9794A-RFSC1, IC: 9794A-G2SC1, IC: 4160a-CNN0301,
IC: 5131A-CE910DUAL, IC: 5131A-HE910NA, IC: 5131A-GE910 and IC:
8595A2AGQN4NNN) have been approved by Industry Canada to operate with the
antenna types listed on the previous page with the maximum permissible gain
and required antenna impedance for each antenna type indicated. Antenna types
not included in this list, having a gain greater than the maximum gain
indicated for that type, are strictly prohibited for use with this device.
This device complies with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
SAFETY RECOMMENDATIONS – READ CAREFULLY
Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas:
- Where it can interfere with other electronic devices in environments such as hospitals airports, aircraft, etc.
- Where there is a risk of explosion such as gasoline stations, oil refineries, etc.
It is the responsibility of the user to enforce the country’s regulations and
the specific environmental regulation.
Do not disassemble the product; any mark of tampering will compromise the
warranty validity. We recommend following the instructions of this user guide
for the correct setup and use of the product.
Please handle the product with care, avoiding any dropping and contact with
the internal circuit board as electrostatic discharges may damage the product
itself. The same precautions should be taken if manually inserting a SIM card,
checking carefully the instruction for its use. Do not insert or remove the
SIM when the product is in power-saving mode.
Every device has to be equipped with a proper antenna with specific
characteristics. The antenna has to be installed with care in order to avoid
any interference with other electronic devices and has to guarantee a minimum
distance from the body (23 cm). In case this requirement cannot be satisfied,
the system integrator has to assess the final product against the SAR
regulation. The European Community provides some Directives for the electronic
equipment introduced on the market. All the relevant information is available
on the European Community website:
http://ec.europa.eu/enterprise/sectors/rtte/documents/
Additional Information and Support For additional information or more detailed
instructions on how to use your Monnit Wireless Sensors or the iMonnit Online
System, please visit us on the web at monnit.com.
Monnit Corporation
3400 South West Temple
Salt Lake City, UT 84115
www.monnit.com
801-561-5555
Monnit, Monnit Logo, and all other trademarks are property of Monnit,
Corp. © 2020 Monnit Corp.
All Rights Reserved.
RS-ST-AUG-01 (11/20)
References
- Remote Monitoring Solutions with Wireless Sensors for IoT
- Monnit Support Options: FAQs, Knowledgebase, Videos, Docs, & More
- Wireless Resistance Sensors for Remote Load Monitoring
- Industrial Resistance Sensor for Wireless Load Monitoring
- Compact Wireless Load Resistance Monitoring Sensor
- Wireless Resistance Sensor with Auto Data-Logging
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