renkforce MX6055 Carbon Dioxide Monitor Instruction Manual

: June 9, 2024
: renkforce

Table of Contents

renkforce MX6055 Carbon Dioxide Monitor
Main features
Overview
Installation
Button descriptions
Operation
TECHNICAL DATA
AUTO BASELINE CALIBRATION
Memory function
Troubleshooting
Care and maintenance
CO2 levels and guidelines
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renkforce MX6055 Carbon Dioxide Monitor

renkforce-MX6055-Carbon-Dioxide-Monitor-PRO

Main features

Three-color displays for CO2 level, temperature, and relative humidity
Non-dispersive infrared gas (NDIR) sensor for CO2 detection
Broad CO2 measurement range from 400 to 5000 PPM
Color display of ventilation recommendations based on the CO2 concentration in the air
Instant and time weighted average CO2 reading (15 minutes / 8 hours)
Max-Min-Average value memory shown since start up
Adjustable high or low CO2 alarm with optional alarm sound for high alarm
Adjustable high or low humidity alarm (visual only)
Automatic calibration of baseline to CO2
Backlight with adjustable brightness levels
Built-in memory chip for saving settings when power is turned off
Table stand
Power supply: 5V ~ 2A power supply (included)

Overview

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CO2 graph movement indicator
Comfort face
Temperature icon
Indoor temperature
Indoor humidity
Humidity icon
CO2 graphical measuring range indicator
CO2 reading
CO2 audible alarm icon
Light sensor
High CO2 icon
Low CO2 icon
MIN icon
MAX icon
High humidity icon alarm
Low humidity icon alarm
UP button
LIGHT button
DOWN button
Stand
Memory
Alert ON/OFF
SET button
Power adaptor socket

Installation

Connect the included 5V-2A AC / DC power adapter to the AC wall socket, then to the DC socket on the left rear side of MX6055. The display will turn on with the appropriate temperature and relative humidity. Your CO2 reading shows “150” and it starts counting down in seconds with a moving graph. The relevant CO2 data will be displayed within 2.5 minutes. It will continue to calibrate and display correct CO2 data within 24 hours. If the AC power is interrupted, the monitor does not function; the display and backlight are turned off. Your device settings will be stored on the internal memory chip so your MX6055 will work again when AC power is restored.

Recommendation for ventilation based on the CO2 concentration in the air.

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Your CO2 monitor measures and displays CO2 in PPM with recommendations for color ventilation: The icons will start flashing when the current CO2 level is above 2000ppm.

Button descriptions

Operation Mode| 【SET】| 【UP】| 【DOWN/ C/F】| 【ALERT ON/OFF】| MEMORY| LIGHT
---|---|---|---|---|---|---
Normal| Press| —| C/F| Celsius or Fahrenheit change| CO2 ALERT ON or OFF selection| CO2 MAX, MIN, loop mode selection| LIGHT brightness dimmer. Turn on or turn off.
HOLD| Enter CO2 and humidity Exceed standard setting pattern| Enter manual calibration pattern. This process takes 20 minutes| | —| —| —
Alert setting| Press| —| —| —| —| —| —
HOLD| —| —| —| —| —| —

Operation

CO2: upper limit and lower limit exceeds standard setting

Single press Alarm sound on/off.
Press and hold to SET button to check following values: CO2 >CO2 >RH% > RH%
Long Press SET button about 2 seconds, CO2/PPM/ shown on, value 400 flashes, press UP or DOWN button to set CO2 lower limit exceed standard value (lower limit Max value cannot bigger than the upper limit Min value. The Min value is 400, setting unit is 10ppm/set). Long press UP or DOWN button make value run faster.
Long press SET button about 2 seconds, CO2/PPM/ shown on, value 2000 flashes, press UP and DOWN button to set CO2 upper limit exceed standard value (upper limit Min value cannot smaller than the lower limit Max value. The Max value is 5000, setting unit is 10ppm/set). Long press UP or DOWN button make value run faster.

Humidity: upper limit and lower limit exceeds standard setting

Press SET button, humidity and shown on, humidity value flashes, press UP or DOWN button to adjust:
- lower limit humidity range (lower limit Max value cannot bigger thank upper limit Min value, the Min value can be set to 25%, setting unit is 1%/set. Long press UP or DOWN button make value run faster.
- upper limit humidity range (upper limit Min value cannot smaller than lower limit Max value. The Max value can be set to 90%, setting unit is 1%/set). Long press UP or DOWN button make value run faster.
After setting all values, press SET button to save desired value or keep it not moving for about 10 seconds.

Remarks:

Lower limit of humidity set as 30%, when humidity lower than 29%, only ****flashes.
Upper limit of humidity set as 80%, when humidity higher than 81%, only flashes.

CO2 ALARM ON/ OFF
Default setting is OFF ( symbol disappears). Press ALARM ON/ OFF button, activate CO2 ALARM function, symbol appears. When CO2 value goes up to desired upper limit value, alert rings and flashes.

Alert mode	CO2 measuring range
Ring every 3 seconds	Lower than 200ppm
Ring every 1 second	Lower than 500ppm
Ring twice each second	Over 800ppm

Press AL ON/OFF button to quit alerts, alert period is 2 minutes.
Press ALARM ON/ OFF button, turn off CO2 ALARM function, disappears.
When CO2 value goes up to desired lower limit value, only flashes, no alert will sound.

TECHNICAL DATA

Power consumption	AC adaptor

Specification
Sensor Type| Long Life NDIR Sensor 400-5000ppm
Response Time| Within 15 seconds of any change in CO2
Operating Temp| 32° to 122°F (0° to +50°C)
Temperature measuring range| 32°C to 122°F (0° to +50°C)
Temperature resolution| 0.1°C
Temperature accuracy| ±1°C
Humidity measuring range| 20 to 95% RH
Humidity resolution| 1%
Humidity accuracy| ± 5%
CO2 measuring accuracy| ±(50ppm+5% reading value) (Example: reading value is 1000ppm, tolerance is 50+1000*0.05=100ppm, so it is 1000±100ppm)
Default settings

AUTO BASELINE CALIBRATION

Your monitor is equipped with an intelligent IC that automatically calibrates to reduce CO2 sensor drift in case of prolonged use. It will calibrate automatically with the minimum CO2 reading detected during 7 days of continuous monitoring.
Make sure the location where you put the monitor is well ventilated (with CO2 levels close to 400ppm), you can put it close to window.

Manual CALIBRATION

The monitor location should be well ventilated (CO2 levels close to 400ppm) for at least one hour a day, or move the monitor to such a well-ventilated room every day for several hours to perform an automatic Calibration baseline.
Press and hold UP button, enter manual calibration mode. CAL letter flashes. This process takes 20 minutes, after 20 minutes, CAL letter stop to flash, then the manual calibration finished.

C/F Default setting is Celsius degree, press DOWN button change to Fahrenheit.

Backlight

Defaulting setting is light, press DIMMER touch button to dim darker light.
Light sensor to dim backlight accordingly with sun light automatically. With bright sun light, CO2 monitor with a bright light, on the contrary it becomes a little bit darker.
Press Dimmer button to turn off back light.

Memory function

Memory display

Press the MEM button once – to show the MAX value of temperature and humidity appears since boot.
Continuous press the MEM button 2 times – to show the MIN value of temperature and humidity appears since boot.
Continuous press the MEM button 3 times – to show the Average value of temperature and humidity of past 15 minutes appears.
Continuous press the MEM button 4 times – to show the Average value of temperature and humidity of past 8hrs appears.
If there is no movement for about 5 seconds, the display will go back regular mode.

Memory clearing
To clear all values, press and hold MEM button for about 3 seconds.
To clear specific values:

Press the MEM button once – after shown the MAX value of temperature and humidity appears since boot, long press for 3 seconds.
Continuous press the MEM button 2 times – after show the MIN value of temperature and humidity appears since boot, long press for 3 seconds.
Continuous press the MEM button 3 times – after show the Average value of temperature and humidity of past 15 minutes appears, long press for 3 seconds.
Continuous press the MEM button 4 times – after show the Average value of temperature and humidity of past 8hr appears, long press for 3 seconds.

Note: Wait for the CO2 monitor to complete the calibration process by itself. Do not press the “UP” button or any other button during the process.

Temperature
In normal display mode, press the “DOWN” button to switch between ° C or ° F temperature display. To adjust the brightness of the display press the “DIMMER” button to adjust the display brightness from high to low to off.

Troubleshooting

No display or function
Check that the AC / DC adapter is properly connected.
Low response time
Make sure the airflow paths on the back of the monitor are not blocked or covered.
CO2 reading shows “Err”
The CO2 sensor is not working properly. Disconnect the AC / DC adapter (C8) for 10 seconds to reconnect it to the monitor.

Care and maintenance

Place the monitor on a stable surface, away from direct sunlight, excessive heat, or moisture.
Clean the monitor with a soft cloth moistened only with mild soap and water. Stronger substances such as gasoline, thinner or similar materials can damage the surface of the item. Make sure the monitor is unplugged before cleaning.
Do not open the back cover or tamper with any part of this monitor.
Do not connect any other AC / AC or AC / DC adapter with incorrect specifications or voltage.

CO2 levels and guidelines

General CO2 benchmarks as follows:

Value	Description / Action needed
400 ~ 600 ppm	Background (normal) outdoor air level.
600 ~ 1000 ppm	Typical level for occupied spaces with good air exchange.
1000 ~ 1500 ppm	Start ventilating the room.
1,500 ~ 2,000 ppm	The level associated with the symptoms of drowsiness and

bad air. Ventilation recommended!
2000 ~ 5000 ppm| The level associated with headaches, drowsiness and stagnation, stale, stuffy air. You may also experience poor concentration, loss of attention, increased heart rate, and mild nausea. Ventilation strongly recommended!