PCE Instruments PCE-AQD 50 CO2 Data Logger User Manual

: October 29, 2023
: PCE Instruments

Table of Contents

Safety notes
Specifications
System description
Getting started
Operation
Contact
Disposal
References
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User Manual
PCE-AQD 50

User manuals in various languages can be found by using our product search on:
www.pce-instruments.com

Safety notes

Please read this manual carefully and completely before you use the device for the first time. The device may only be used by qualified personnel and repaired by PCE Instruments personnel. Damage or injuries caused by non- observance of the manual are excluded from our liability and not covered by our warranty.

The device must only be used as described in this instruction manual. If used otherwise, this can cause dangerous situations for the user and damage to the meter.
The instrument may only be used if the environmental conditions (temperature, relative humidity, …) are within the ranges stated in the technical specifications. Do not expose the device to extreme temperatures, direct sunlight, extreme humidity or moisture.
Do not expose the device to shocks or strong vibrations.
The case should only be opened by qualified PCE Instruments personnel.
Never use the instrument when your hands are wet.
You must not make any technical changes to the device.
The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner, no abrasives or solvents.
The device must only be used with accessories from PCE Instruments or equivalent.
Before each use, inspect the case for visible damage. If any damage is visible, do not use the device.
Do not use the instrument in explosive atmospheres.
The measurement range as stated in the specifications must not be exceeded under any circumstances.
Non-observance of the safety notes can cause damage to the device and injuries to the user.
The device has been developed for fixed installation.

We do not assume liability for printing errors or any other mistakes in this manual.
We expressly point to our general guarantee terms which can be found in our general terms of business.
If you have any questions, please contact PCE Instruments. The contact details can be found at the end of this manual

Specifications

2.1 Integrated sensors

Specification	Value

Temperature
Measurement range| 0 … +50 ºC / 32 … 122 ºF
Accuracy| ±0.15 ºC @ 0 … 20 ºC / 32 … 60 ºF

±0.1 ºC @ 20 … 50 ºC / 68 … 122 ºF

Resolution| 0.1 ºC
Relative humidity
Measurement range| 0 … 100 % RH, non-condensing
Accuracy| ±1.5 % RH @ 0 … 80 % RH

±2 % RH @ 80 … 100 % RH

2.2 General

Specification	Value
Memory capacity	microSD card of 32 GB

in total 1,000,000,000,000 measuring points for all sensors

Sampling times| 30 s, 1, 2, 10, 15 and 30 min and 1, 2, 6, 12 and 24 h
IP protection class| IP30
Voltage supply| USB 5 V / 1.5 A
Operating conditions| 0 … +50 ºC / 32 … 122 ºF

0 … 100 % RH, non-condensing

Storage conditions| -20 … +60 ºC / -4 … 140 ºF

0 … 100 % RH, non-condensing

Weight| 300 g / 10.5 oz
Dimensions| 128.5 x 88.5 x 41 mm / 5.06 x 3.48 x 1.61”

2.3 Approx. battery life

Sampling time	Battery life
Temperature	Humidity
2 min	2 min
10 min	10 min
15 min	15 min
1 h	1 h

2.4 Delivery contents
1x CO2 data logger PCE-AQD 50
1x 32 GB microSD card with adaptor
1x micro USB charging cable
1x quick start guide
2.5 Optional accessories
1x wall mounting set
1x ISO calibration certificate CAL-HT
1x ISO CO2 calibration certificate CAL-CO2
1x temperature calibration certificate CAL-DAKKS-T

System description

3.1 Device
This CO2 datalogger is capable of measuring four environmental parameters (temperature, humidity, pressure and CO2) at configurable sampling times and high accuracy.

Interfaces

1| Charging connection
2| SD card slot

LEDs
3| Alarm: red when a value exceeds its threshold
4| Charger connected: green when charger is connected, until battery is completely charged
| Key| Name| Function
---|---|---|---
5| | Power key| – Press when alarm LED is on to turn it off
– Press and hold for 1.5 s to turn the device on/off
6| | Back key| – Press and hold for 2.5 s to return to home screen
7| | OK key| – Confirm an entry
8| | Up key| – Press and hold for 1 s in home screen to display time and date if it is not displayed on the upper bar
– Navigate through the menus
9| | Left key| – Change between sensors view and graphic view and vice versa
– Change between digits in certain configurations
10| | Right key| – Change between sensors view and graphic view and vice versa
– Change between digits in certain configurations
11| | Down key| – Navigate through the menus

Getting started

4.1 Power supply
The device uses a Li-Ion rechargeable battery of 7.4 V/3400 mAh that has to be charged with the 12 V/1.5 A charger provided. The charging process can increase the temperature inside the device and affect the temperature measurement.
The battery life depends on the configuration of the different sensors. It is recommended to set the same sampling time value for measuring the temperature, humidity and pressure and a higher sampling time value for the CO2 measurement. The recommended configurations and the estimate battery lives are:

Temperature| Humidity| Pressure| CO 2| Battery life
---|---|---|---|---
2 min| 2 min| 2 min| 10 min| 3 months
10 min| 10 min| 10 min| 15 min| 4 months
15 min| 15 min| 15 min| 30 min| 5.5 months
30 min| 30 min| 30 min| 1 h| 7.5 months

Note:
The battery life can vary depending on the ambient conditions.
The device can also be used when connected to mains power via the power charger.
4.2 Preparation
The device is designed to be mounted on the wall. For this purpose, it has two holes for screws and you can use screws with a diameter of 4 mm. To uncover the holes, pull the small tabs through the slits on the front panel of the device. In the image, the drill template can be seen.

Operation

5.1 Start-up
To start up the device, press and hold the Power key for approx. 1.5 s. The device will display a boot screen (fig. 3), followed by the home screen (fig. 4). The number of sensors displayed on the home screen depends on the number of sensors enabled (fig. 4/5). The device will start up with the sampling times set before turning off. At first start-up, the sampling times are 2 minutes for all sensors but CO2 the default sampling time of which is 10 minutes. It is also recommended to set the time and date of the device (00:00 and 01/01/2021 as default on start-up).

5.2 Measurement
In order to perform a measurement, follow these steps:
4. Go to Menu → Sensors → Sensors configuration. Here, you can set the desired sampling time and/or turn off the desired sensors.
5. Go to Menu → Senors → Start/Stop datalogging. Here, you can set the start mode and a circle will appear in the upper bar, indicating that the device is recording data. This will only happen if the SD card is inserted in the device. If not, a warning message will be displayed and the recording will be aborted.
6. Go to the home screen. Here, you can select between sensors view where the measurements of all sensors are displayed or graphic view where the last fifteen CO2
points are displayed to see the course of the concentration.
5.3 Turnoff
To turn off the device, press and hold the Power key for approx. 1.5 s. After the beep, release the key and the device will turn off completely. It will save the settings and use these as default settings for the next start-up.
The following message (fig. 6) will be displayed during power-off, until the display turns completely blank.

Note:
When the device is turned off and on again, the time and date have to be set manually again.
5.4 Menus and submenus
5.4.1 Main menu
To access the main menu from the home screen, press the OK key. The device will then display the main menu (fig. 7). Here, the arrow keys ▲, ▼, ◄ and ► can be used to select the submenu/function you want to access.
5.4.2 Sensors menu
This menu allows you to make all settings related to the sensors. It consists of three submenus (fig. 8):

Sensors configuration: allows you to enable sensors and select the sampling time for the sensors
Start/stop datalogging: allows you to start and stop the datalogging process
CO2 graph: displays a graph with the last fifteen CO2 values measured

5.4.2.1 Sensors configuration menu
This submenu allows you to set the sampling time for each sensor and also to disable each one of them. The sensors are represented by their units and the display will be updated depending on the units set for the measurements.
If a sampling time is set for any of the sensors, that sensor will be enabled. The available sampling times are: 30 seconds, 1 minute, 2 minutes, 10 minutes, 15 minutes, 30 minutes, 1 hour, 2 hours, 6 hours, 12 hours and 24 hours.
For changing the sampling time for one sensor, select the desired sensor with the arrow keys ▲ and ▼ and press the OK key; then the device will highlight the sampling time you are changing in white (fig. 10). After that, use the arrow keys ▲ (increase sampling time) and ▼ (decrease sampling time) to change between the different values for the sampling time. Once you have reached the 24 h sampling time and press the arrow key ▲ again or have selected a sampling time of 30 s and press the arrow key ▼, the device will display Off and the sensor will be disabled. In the images 9 and 10, the humidity sensor is shown as disabled.
Note:
At first start-up, the sampling times are 2 minutes for all sensors but CO2 the default sampling time of which is 10 minutes.

Note:
When selecting 30 s as sampling rate, it is recommended to use the charging adaptor.
5.4.2.2 Start/Stop datalogging menu
This submenu allows you to start and stop the datalogging process (fig. 11).
Use the arrow keys ▲ and ▼ to select the desired action and press OK. In that moment, the ✓ icon will be displayed next to Stop or Start. Furthermore, if the selected action is Start, the device will show a circle in the upper bar to indicate that it is measuring (fig. 12).
The device will start measuring when it is turned on, no matter if datalogging is enabled or not. This is because the device can be also used to display the current ambient parameters.
5.4.2.3 CO2 graph
This part of the menu displays a graph that shows the last 15 measured CO2 values (fig. 13). If no measurements have been made yet, you will not be able to access this page. This page can be also accessed with the arrow keys ◄ and ► from the home screen. To return to the main menu from this page, press OK.

5.4.3 Settings menu
This menu allows you to make all settings related to the device. It consists of six submenus (fig. 14 and 15):

Language: select menu language
Date and time: set date and time and their format
Alerts: enable/disable alerts and set an alert threshold for each variable
Units: change the measuring units for the variables
Date and time on screen: enable or disable the time and date display on the upper bar
Decimal separator: select the decimal separator for the measured variables
Dark/light mode: select between dark or light theme for the display and menus
Sound: enable/disable the sound of the alerts

5.4.3.1 Language submenu
In this submenu, you can change the language of the device. The following options are available: Dutch, English, French, German, Italian, Polish, Spanish and Turkish. When entering this menu, the device will display a list of the languages and the icon ✓ next to the currently selected language (fig. 16).
To change the language, use the arrow keys ▲, ▼, ◄ and ► to select the desired language and select it by pressing OK. The texts of the menu will then be updated to the selected language.

5.4.3.2 Date and time submenu
In this submenu, you can set the time and date of the device as well as their formats (fig. 17). Use the arrow keys ▲ and ▼ to select the parameter you want to change and press OK.

After selecting Time or Date, the device will highlight the digit to be modified in white. You can change the digit using the ◄ and ► keys and its value with the ▲ and ▼ keys. Once the time or date is set, press OK to update the data in the display and in the system.

Note:
The time and date will be autocorrected when their maximum values are exceeded. For example, if the actual date is 31 January and the user tries to increase the 1, it will be updated to a 0.
After selecting Time format or Date format, the device will display highlight the value to be modified in white. The user can change the value with the arrow keys ▲ and ▼. The possible values for the time format are 24h and 12h and the options for the date format are dd.mm.yyyy, dd/mm/yyyy, mm.dd.yyyy, mm/dd/yyyy, yyyy.mm.dd and yyyy/mm/dd. Once the format is selected, the OK key must be pressed.
Note:
If 12h is selected for the Time format, the time will be displayed with am/pm.

5.4.3.3 Alerts submenu
Via this submenu, you can enable/disable and define an alarm for each measured variable. In case the measured value for a certain variable exceeds the limit set in the alert, the device will beep every 2 seconds for a duration of 10 seconds and a red LED will turn on. When you enter the menu, the device will display a list of the sensors represented by their units as well as the icon ✓ next to each sensor with an enabled alarm (fig. 22).
For enabling/disabling or setting an alarm, use the arrow keys ▲ and ▼ to select the sensor you wish to set. Then press OK to open the specific alarm menu for the selected sensor (fig. 23).

The alert menus for each sensor consist of a part which indicates if the alarm is enabled or not and another part which indicates the limit value for the alert; once the measurement exceeds that limit, the meter will beep and the LED will glow.
To enable/disable the alarm for a certain sensor, use the arrow keys ▲ and ▼ to select Set limit and then press OK. If the alarm is enabled, the icon ✓ will be displayed; if not, nothing will be displayed.
To set the limit, select Value and press OK. Then, the digit selected for changing will be highlighted in white (fig. 22). The default values for the alarm are 30 ºC, 80 % RH, 1000 hPa, 1000 ppm (green limit) and 2000 ppm (yellow limit).
The LED will turn off when you disable all alarms or when the parameters with a set alarm fall below the limit value set.

5.4.3.4 Units submenu
This submenu allows you to choose between two unit systems:
International System of Units (SI): ºC, % RH, hPa and ppm or United States System (US): ºF, % RH, psi and ppm To change the units, use the arrow keys ▲ and ▼ to select the desired unit system and press OK. Then, a ✓ icon will be displayed next to the unit system selected.

5.4.3.5 Date and time on screen
Via this submenu, you can select whether or not to display the date and time on the top bar. Use the arrow keys ▲ and ▼ to select the desired option and press OK. Then, a ✓ icon will be displayed next to the selected option. In fig. 26, the time and date are displayed in the top bar.

5.4.3.6 Decimal separator submenu
In this submenu, you can choose whether to use the comma or the dot as decimal separator for the display and for the data on the µSD card.
To switch between the two options, use the arrow keys ▲ and ▼ to select the desired decimal separator and press OK. Then, a ✓ icon will be displayed next to the selected option.

5.4.3.7 Dark/light Mode
Via this submenu, you can select light or dark mode. When you access this menu, select the desired option with the arrow keys ▲ and ▼ and press OK. After that, a ✓ icon will be displayed next to the selected mode. In figures 28 and 29, you can see the two different modes.

5.4.3.8 Sound submenu
This submenu allows you to enable or disable the beep in case of an alert. For enabling/disabling the beep, use the arrow keys ▲ and ▼ to select the desired option and press OK. Then, a ✓ icon will be displayed next to the selected option.

5.4.4 Format menu
When you select this menu option and the SD card is inserted, the device will format it and a window with an hourglass will be displayed on the screen (fig. 31). When the process is finished, the window and the hourglass will disappear. If the SD card is removed before finishing, the process will be stopped and the window and the hourglass will also disappear from the screen.

If the user selects this option without having inserted the SD card, a window with the message “No SD card” will appear on the screen (fig. 32).

If an error occurs during the formatting process, the message “Error…” is displayed (fig. 33). After this, some implausible values may be displayed in the top left corner instead of the free memory percentage value. This problem can be solved formatting the SD card again via the Format option or with a computer, removing the SD card from the device first.

5.4.5 Info menu
In this menu, you can see some information about the device such as the company logo, the name and version of the device, the serial number and the website.

www.pce-instruments.com

5.5 Files
As soon as a datalogging process starts, a new file will be created. Also, a new file will be created each month.
The SD card used for datalogging must be formatted in FAT32 and have a maximum size of 32 GB.
The name of the file for the SD card is structured as PCE_dd.mm.yyyy_hh.mm.ss.csv and dd.mm.yyyy and hh.mm.ss stand for the date and time when the file has been created. All files include a header with the name of the company (“PCE Instruments”), the website, the name and version of the device and the serial number.

Contact

If you have any questions, suggestions or technical problems, please do not hesitate to contact us. You will find the relevant contact information at the end of this user manual.

Disposal

For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament applies. Due to the contained pollutants, batteries must not be disposed of as household waste. They must be given to collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use them or give them to a recycling company which disposes of the devices in line with law. For countries outside the EU, batteries and devices should be disposed of in accordance with your local waste regulations.

If you have any questions, please contact PCE Instruments.

www.pce-instruments.com

PCE Instruments contact information

Germany
PCE Deutschland GmbH
Im Langel 4
D-59872 Meschede
Deutschland
Tel.: +49 (0) 2903 976 99 0
Fax: +49 (0) 2903 976 99 29
info@pce-instruments.com
www.pce-instruments.com/deutsch
United Kingdom
PCE Instruments UK Ltd
Unit 11 Southpoint Business Park
Ensign Way, Southampton
Hampshire
United Kingdom, SO31 4RF
Tel: +44 (0) 2380 98703 0
Fax: +44 (0) 2380 98703 9
info@pce-instruments.co.uk
www.pce-instruments.com/english
© PCE Instruments

User manuals in various languages can be found by using our product search on: www.pce-instruments.com Specifications are subject to change without notice.