ETC Echoflex RCT Manuale utente

Echoflex Installation Guide

Wireless CO₂Sensor RCT

Overview

Function

button

LEDs behind

solar panel

The Wireless CO₂Sensor (RCT) uses wireless

technology to communicate accurate indoor

CO2, temperature, and relative humidity

readings to compatible controllers.

The solar panel harvests and stores sufficient

energy for normal operation. A CR2032

battery is used for calibrations and backup

assistance if required.

This document covers installation, testing, and

basic setup of the RCT. The product package

includes the sensor and a battery.

Prepare for Installation

To ensure optimal function, consider the

installation environment and the following

guidelines:

•

For indoor, commercial controls use only. Operating temperature

-25°C to 50°C (-13°F to 122°F) and relative humidity 5%–95%.

•

High density construction materials and large metal appliances or

fixtures in the space may disrupt wireless transmissions.

•

Install the sensor within range of the gateway or interface to the

monitoring system, 24 m (80ft) unobstructed view. Consider adding

a repeater to extend the wireless signal, if required.

•

CR2032 coin cell battery is provided with the sensor. Install the

battery or activate it if factory-installed by removing the protective

plastic tab in the battery housing. See Battery Power on page3.

•

Find a suitable location that has good light exposure. Use the Light

Level Test on page3 to confirm adequate light exposure.

•

Plan for at least 20 minutes outdoors for the sensor to calibrate an

ambient air baseline. See Outdoor CO

₂

Calibration on page4.

Supplies required to install (not provided):

•

Two #6 screws, double-sided tape, or Velcro®

Corporate Headquarters nMiddleton, WI, USA |+1 608 831 4116

Web echoflexsolutions.com |Email [email protected] |Support [email protected]

Product information and specifications subject to change.

Echoflex intends this document to be provided in its entirety.

8188M2100 Rev C Released 2023-04

Echoflex Installation Guide

Wireless CO₂Sensor

Installation

Use hand tools when installing. Over-torquing with a power tool can

damage the sensor. The sensor’s removable back plate can be mounted

on most surfaces.

Note: Consider linking the sensor while you have access and

before replacing the cover, see Send a Teach Message below.

Three different mounting options are available:

Function

button

•

Flush-mounted to a firm surface with screws and

wall anchors (not provided).

•

Using double-sided tape or Velcro (not

provided).

•

Over a standard, Class 2 low-voltage electrical

box. Keyholes in the back plate mate with

standard screw patterns.

1. Insert a precision flatblade screwdriver into

the slot on the key tab to separate the back

plate from the sensor.

2. Mount the back plate with the plastic key on

the bottom.

3. Align the sensor over the back plate and press

the lower edge until it clicks in place.

4. Test for adequate light levels. See Light Level

Test on the facing page.

Note: The sensor can operate with low

light exposure, but for best results, it

should be mounted in a location with four

hours of natural or artificial light daily,

minimum 400 lux (40 footcandles).

Send a Teach Message

The target receiving devices must be installed,

powered, and within range of the sensor.

1. Remove the sensor from the back plate.

2. Activate the target device to receive a wireless message to connect. If

necessary, refer to the related product documentation.

3. Press the [Teach] button on the sensor. (See image on facing page.)

Wireless CO₂Sensor Page 2 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

Battery Power

A battery is not required for normal operation if the sensor receives

adequate natural or artificial light. See the table in the Light Level Test

below. A CR2032 battery is required to run the Outdoor CO

₂

Calibration

process on page 4.

The battery may be factory installed or packed separately according to

shipping regulations. Insert the battery if required or remove the

protective plastic tab before installing the RCT.

Sensor Back View

Teach

button

CR2032

battery

To replace the battery:

1. Remove the sensor from the back plate

by pressing the key on the lower edge of

the sensor body.

2. Use a precision flatblade screwdriver to

remove the old battery from the holder.

3. Insert a new battery with the positive

side (+) facing up and press in place.

4. Replace the back plate and snap it in

place.

Tests and Settings

Use the [Function] button and color LEDs to

navigate the Tests and Settings menu. The

[Function] button is on the side of the sensor

and the LEDs display through the right side of

solar panel.

•

Light Level Test (green LED)

•

Outdoor CO

₂

Calibration (red LED)

•

₂

Calibration Setting (green and red

LEDs)

The menu times out after two minutes of inactivity.

Light Level Test

The Light Level Test quantifies the amount of energy produced by the

solar cells and confirms a good installation location.

1. Press and hold the [Function] button until the green LED is displayed.

Release the button to enter the menu and display the first item, the

blinking green LED.

Wireless CO₂Sensor Page 3 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

2. Press and hold the [Function] button again until the green LED stops

blinking. The green LED then repeats a number of blinks according to

the detected light level. The sensor reevaluates the light level every

two seconds.

Blinks Ambient Light

Lux (Footcandles)

Time to Fully

Charge Discharge Time

0 <50 (<5) Non-operational N/A

1 50–100 (5–9) Operational N/A

2 100–200 (9–19) 32 hours 72 hours

3 200–400 (19–37) 16 hours 72 hours

4 400–800 (37–74) 8 hours 72 hours

5 >1000 (>93) 4 hours 72 hours

About Calibration

The sensor must be calibrated to establish an ambient air baseline

measurement in order to provide optimal performance and accurate

readings. It can be calibrated using an outdoor environment or by

enabling Automatic Background Calibration (ABC). The default

calibration setting is enabled ABC.

Note: If ABC is enabled, you do not need to run the Outdoor CO

₂

Calibration. If you calibrate the sensor outdoors, the ABC option

should be disabled, see CO

₂

Calibration Setting.

Outdoor CO₂Calibration

The sensor can be calibrated outdoors to establish a baseline

measurement.

To use the outdoor calibration method:

1. Place the sensor outdoors, out of direct sunlight in air above 0ºC

(32ºF) for at least 20 minutes. Avoid areas where people linger so

readings are not affected.

2. Press and hold the [Function] button until the green LED starts

blinking.

3. Press the [Function] button to cycle through the menu of color LEDs

and stop when the red LED blinks.

4. Press and hold the [Function] button until the LED stops blinking to

select Outdoor CO2Calibration.

The sensor assigns the value of 420ppm (outdoor air) to the lowest

CO2value recorded since its last calibration cycle. The green LED

blinks for five seconds and stops when calibration is complete.

Wireless CO₂Sensor Page 4 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

CO₂Calibration Setting

The sensor provides an Automatic Background Calibration (ABC) option

that can be set indoors. ABC is enabled by default.

ABC is a feature that measures the lowest level of CO2that occurs over a

three-week period to establish an ambient air baseline and assign the

value 420 ppm to this lowest value.

The ABC feature works best where the monitored space is periodically

unoccupied for eight hours or more at least once in a typical three-week

period. If the monitored space is occupied 24/7 or is an industrial or

greenhouse operation where CO2levels may be elevated over long

periods of time, then the ABC feature should be disabled.

To set the calibration option:

1. Press and hold the [Function] button until the green LED starts

blinking.

2. Press the [Function] button to cycle through the menu of color LEDs

and stop when the green and red LEDs blink.

3. Press and hold the [Function] button until the LEDs stop blinking to

select CO2Calibration Setting.

4. Press and release the [Function] button to cycle through menu until

your target setting displays.

•

Green LED blinks: enable ABC

•

Red LED blinks: disable ABC

5. Press and hold the [Function] button to save the setting.

Current CO₂Value

2,600

2,200

1,600

1,200

800

400

Unacceptable

Poor

Under Ventilated

Marginal

Indoor Optimal

Outside Levels

CO! Concentration

Ventiliation Rate (cfm/person)

The current CO2value is shown as a

sequence of blinking LEDs. To get a

reading of the current value:

1. Press the [Function] button. The

LEDs blink in sequence to indicate

the current value.

2. Add the number of color blinks

together for a total, where a single

blink represents:

•

Green = 500 ppm/blink

•

Blue = 100 ppm/blink

•

Red = 25 ppm/blink

3. For example:

•

2 green blinks = 1,000 ppm

•

3 blue blinks = 300 ppm

•

2 red blinks = 50 ppm, for a total CO2= 1,350 ppm.

Wireless CO₂Sensor Page 5 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

The chart illustrates CO2concentration and how values correspond to

ventilation rates (2,600=Red; 1,500=Yellow; 400=Green).

Note: The sensor automatically corrects for altitude. Pressure

compensation is factored into CO2readings using 3% for every

300 m (1000ft).

Current General Range

The sensor blinks a color LED every 15 seconds to indicate the current

general range of CO2.

•

Green = less than 800 ppm (good ventilation and air quality)

•

Blue = 800 to 1,400 ppm (marginal ventilation and air quality)

•

Red = greater than 1,400 ppm (low ventilation and potentially poor

air quality)

Transmission Intervals

Sufficient ambient light levels ensure a sustained power source for

transmissions. Transmission intervals are determined by ambient light

levels, rate of measurement change, and the amount of power stored in

the sensor as follows:

•

If the measured temperature change between the current sample

and the last transmitted value is greater than 0.6°C (1.1°F), the

sensor transmits immediately.

•

If the relative humidity (RH) change between the current sample and

the last transmitted value is greater than 3%, the sensor transmits

immediately.

•

For levels 1 and 2, the CO2sample rate value is derived from three

consecutive readings averaged with the previous transmitted value.

•

For level 3, only the three readings taken during the current sample

are averaged.

Level Ambient Light

Lux (Footcandle)

Temp/RH

Rate CO2Sample Rate

1 > 200 lux (18.5 fc) 16 sec 300 sec (5 min)

2 < 200 lux (18.5 fc) 32 sec 600 sec (10 min)

3 < 50 lux (4.6 fc) for 24 hrs. 64 sec 1,200 sec (20 min)

Wireless CO₂Sensor Page 6 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

Compliance

For complete regulatory compliance information, see the Wireless CO₂Sensor datasheet at

echoflexsolutions.com.

FCC Compliance

Echoflex Wireless CO₂Sensor

(For any FCC matters):

Echoflex Solutions, Inc.

3031 Pleasant View Road

Middleton, WI 53562

+1 (608) 831-4116

echoflexsolutions.com

This device complies with Part 15 of the FCCRules. Operation is subject to the following two

conditions:(1) this device may not cause harmful interference, and (2)this device must accept

any interference received; including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable

protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio frequency energy and, if

not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. Any modifications or changes to this product not expressly approved by

Electronic Theatre Controls, Inc. could void the user’s authority to operate the product.

Operation of this equipment in a residential area is likely to cause harmful interference, in

which case the user will be required to correct the interference at their own expense.

Contains FCC ID: SZV-STM300U

ISED Compliance

This device contains a license-exempt transmitter/receiver that complies with Innovation,

Science, and Economic Development Canada’s license-exempt RSSs. Operation is subject to

the following two conditions:

1. This device may not cause interference.

2. This device must accept any interference, including interference that may cause undesired

operation of the device.

Contains IC ID: 5713A-STM300U

Conformité ISDE

Cet appareil contient un émetteur/récepteur conforme aux CNR d'Innovation, Sciences et

Développement économique Canada (ISDE) applicables aux appareils radio exempt de licence.

Son fonctionnement est soumis aux deux conditions suivantes:

1. L'appareil ne doit pas produire d'interférences.

2. L'utilisateur de l'appareil doit accepter toute interférence, même si l'interférence est

susceptible d'en compromettre le fonctionnement.

Contient ID IC: 5713A-STM300U

Wireless CO₂Sensor Page 7 of 8 Echoflex

Echoflex Installation Guide

Wireless CO₂Sensor

Wireless CO₂Sensor Page 8 of 8 Echoflex

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