NanoSense E4000NG User manual

www.nano-sense.com All Rights Reserved Tel: [phone] page 1/27
E4000NG air quality probe Installation manual
Ver
Date
Modification / Update
V1
Initial
Version Initial/Initial version
V9
Sep 2012
Initial mass prod version
V10
Nov 2012
Air proof wiring
V11
Dec. 2012
Temperature sensor position
V12
May 2013
LED option + High performance Positioning
V13
Oct 2013
Complementary KNX power supply
V14
Oct 2015
HS LS for analogue option
V15
Oct 2018
Change from E4000 to E4000-NG (new EEP, new CO2 and RH sensor)
setting of RH threshold and type of VOC measurement

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 2/27
Summary
1. Security 3
2. Positioning 3
3. Installation 4
4. Wiring 4
5. Motherboard preparation 4
5.1. RS485 4
5.2. Optional Bus board 5
5.2.1. Install the daughter board 5
5.2.2. Mount the BUS connector 5
5.3. Analog Option 5
5.4. LED Option 5
5.5. EnOcean Option 6
5.6. Gateway EnOcean-KNX Option 6
6. Install the motherboard into the case 6
6.1. Temperature sensor 7
6.1.1. Standard positioning 7
6.1.2. High performance positioning 7
7. Connecting 7
7.1. Power Supply 7
7.1.1. Power Supply Characteristics 7
7.1.2. Power supply connection 9
7.1.2.1. RS485, Analog, EnOcean, KNX and LON 9
7.2. Connecting to ventilation and other elements 10
7.2.1. RS485 10
7.2.2. Analog Option 10
7.2.3. KNX or LON Sensor Mode 10
7.2.4. EnOcean sensor mode option 11
7.2.4.1. Pairing 11
7.2.4.2. Telegram Transmission Principle 11
7.2.4.3. Description Radio Telegram 11
7.2.4.4. Transmission Range 12
8. Insert gas sensors 14
8.1. Sensor on mini SD card 14
8.2. CO2 single band NDIR Sensor 14
8.3. CO2 double band NDIR Sensor 14
9. Powering 15
10. Threshold settings (EnOcean, Modbus RS485 and Analogical Board) 16
10.1. Position the micro switches 16
10.2. RH (humidity) threshold settings with LCD tool 17
10.3. CO2 Baselines expressed in ppm 18
10.4. Guide values for VOCs 18
11. Type of VOC measure settings 19
12. Connection diagram according to position of micro switches 20
13. Completion of installation 21
14. Summary of Simultaneous Configurations 21
ANNEXES 22
1. Installation of BUS connections 22
1.1 RS485 22
1.2 Programming the physical address 23
1.3 Choice between RTU and ASCII 23
1.4 RS485Annexes probes 23
2. Choosing Cable Bus 24
2.1. RS485 24
2.1.1. Topology 24
2.2. KONNEX 24
2.3. LONWORKS 24
3. Ventilation Control 25
4. Specification 26
DRILLING 27

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 3/27
1. Security
WARNING
Danger of death, risk of electric shock and fire!
The installation should only be undertaken by a qualified electrician!
To apply for correct bus and power cables and to activate the device, comply with the state of the art
and standards.
Any intervention or modification to the device will invalidate any warranty claim.
• Do not use the sensors for measuring gas content relating to safety!
• Use the probe only with secured low voltages!
• Use an external 24VAC or DC power supply capable of delivering 60mA per probe and ensuring a
peak voltage under 40V.
2. Positioning
The position of the probe is crucial vis-à-vis efficiency and energy savings for
ventilation, heating and cooling.
• The probe is designed to ensure air quality; it must be placed in the area of
occupancy of the premise served by outlet vents, on a wall at eyes level
(breathing human level, between 1.5 and 1.8m).
• Avoid drafts (near openings, blowing air, doors, outlet vents) and dead zones
(niche, shelves and curtains).
• Avoid orthogonal walls (corners of room in particular)
• Avoid heat sources and the proximity of occupants (radius of 1 m from
workstation).
• Avoid direct exposure to sunlight.
• Position the sensor vertically on a wall or partition.
This device is not intended for installation in duct or ceilings.
• When used with an EnOcean radio module, see the complementary positioning constraints § 7.2.4.4
Any work not in accordance with this documentation or
changes to the device will invalidate all warranty claims.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 4/27
3. Installation
Attach to the wall through two holes in the case.
4. Wiring
Be careful, wiring must be sealed. Incoming air, even slight, would seriously jam the temperature,
humidity and air quality measures.
When the switchboard is located in the heated volume: caulk arrivals between cables and ducts at the
switchboard level.
When the switchboard is out of the heated volume, caulk between cables and ducts before entering the
heated volume. A sealing plug must also be placed between duct and cable reaching the E4000-NG
probe to prevent air entry.
When the sealing of the duct is not possible, use a specific sealant without silicone and VOC.
In case of use of electrical box, select an airtight case with sealing membrane from
which the duct passes through. If the case crosses through the sealing plane
(plasterboard), seal between the casing and panel with a special sealant without
silicone and VOC.
5. Motherboard preparation
5.1. RS485
The RS485 interface is resident on the motherboard
TOP
BOTTOM
Take care of case orientation (TOP –BOTTOM)
ONLY use screws with bent heads
Maximum height of the head 2 mm.
Make sure to position the hole of cables
path at the case bottom
RS485 Modbus

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 5/27
5.2. Optional Bus board
5.2.1. Install the daughter board
KNX board LON board
5.2.2. Mount the BUS connector
Motherboard with KNX Motherboard with LON
5.3. Analog Option
5.4. LED Option
Insert the Bus board into the motherboard of the
probe. Check that there is no shift in the
connectors.
BUS plug

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 6/27
5.5. EnOcean Option
For good receiver performance, great care must be taken about the space immediately surrounding the
antenna since this has a strong influence on screening and detuning the antenna. The antenna should be
drawn out as far as possible and must never be cut off. Mainly the far end of the wire should be
mounted as far away as possible (at least 15 mm) from all metal parts, ground planes, PCB strip lines
and fast logic components (e.g. microprocessors). Do not roll up or twist the whip antenna!
5.6. Gateway EnOcean-KNX Option
Note: Gas sensors must be installed after the connections
and before power on.
6. Install the motherboard into the case
Clip the mother board into the case
EnOcean radio module
Antenna
EnOcean module
KNX module
Case
The arrow on the board
indicates the top position

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 7/27
6.1. Temperature sensor
6.1.1. Standard positioning
The temperature sensor is located on the lowest part of the board.
This sensor is located at the end of a coiled pigtail 3cm long conductor to
minimize thermal bridging with the board and thus reduce the thermal
inertia. In addition, the metal used is constantan. This alloy is a good
electrical conductor and a good thermal insulator which further reduces
the thermal the thermal bridge with the board. So in case of sudden
temperature change (window opening), the probe reacted very quickly.
For an accurate measurement, it is necessary that the sensor (the little
black ball) be in the air stream.
Pull lightly on the sensor to make it exceed by 3 mm from the dished
shape recess in the plastic housing. Do not overpass 6mm to avoid
touching the plastic cover.
A gentle stream of air is generated by the heating of the CO2 and VOCs
sensors located in the upper part. The incoming air is immediately
measured by the temperature sensor.
6.1.2. High performance positioning
The here under optimum positioning of the temperature sensor eliminates thermal phenomena in the
containment housing and improves accuracy.
7. Connecting
7.1. Power Supply
7.1.1. Power Supply Characteristics
Use a power supply between 12 and 24V AC or 15 and 33V DC with a fluctuation of max
value of less than 10%, preferably a DIN rail regulated one.
Make sure the voltage does not overpass 24V AC or 33V DC before connecting to the
E4000-NG probe.
Take into account the voltage drop in the cable to assess the consumption of each sensor.
Temperature sensor
Stretch the twisted cable of the sensor in
pulling it down. Put the cover from the
bottom by inserting the sensor into the
vent.
Check visually and make sure not to
exceed the border for aesthetic reasons.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 8/27
In RS485 version add 13mA for communication to the calculated consumption. Probes are queried one
after the other.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 9/27
In KNX version, the bus powers only the interface board, the main board is powered
by the secondary 31V–DC power supply (yellow and white).
Use a certified KNX power supply.
Most of KNX power supplies have a secondary 31V-DC power supply (yellow and
white cables and connector of the same colors).
In LON version use a power supply independent from the bus.
Installation sample
RS485
KNX
LON
Per Unit consumption
45 mA
40 mA
40 mA
20 probes connected
20* (45 + 13) mA
To be adjusted for
voltage losses in long
cables worn.
20*40 = 800 mA
Δ Security : 20 % =
160 mA
Power supply :1 A
20*40 = 800 mA
Δ Security: 20 % = 160
mA
Power supply : 1 A
7.1.2. Power supply connection
In all cases the probe requires a power supply separated from the bus
7.1.2.1. RS485, Analog, EnOcean, KNX
and LON
The KNX or LON power supply cable allows receiving and sending data and powering the interface
board only. The main board shall be powered separately
Power supply connector
24VAC or 33V DC
RS485
Analog
EnOcean
The power supply connector is designed for monofilament cables from 0,6 to 0,8 mm of Ø. Reveal the wire on 5 mm.
It is not necessary to respect the polarity.
24V AC or 15+ 33V DC
Complementary Power supply REQUIRED
KNX
LON
EnOcean/KNX Gateway
For cable selection, refer to § Choice of cables attached in the annex.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 10/27
Note: KNX or LON EnOcean Gateway
Connecting the EnOcean module enables the gateway function between KNX or LON and EnOcean.
In addition to the gateway function, this module is used to enrich the functions between the EnOcean
sensors and EnOcean actuators by KNX or LON settings. The pairing between the gateway and
EnOcean devices requires prior setting of KNX or LON communication object via ETS or LON tool.
The pairing is then made through the buttons of the LCD tool panel.
For detailed on settings, refer to the KNX or LON setting manual.
Without wired bus interface board, the probe becomes an EnOcean sensor.
7.2. Connecting to ventilation and other elements
7.2.1. RS485
7.2.2. Analog Option
See bridge diagrams on chapter 0
7.2.3. KNX or LON Sensor Mode
Liaison with HVAC and heating is by KNX or LON wire (twisted pair). HAVC, heating and air
conditioning must be compatible KNX or LON
Measures and orders are transmitted via the RS485 Modbus.
The cable must be twisted. For the selection of cable refer to
§2 Choosing Cable Bus
For more details on the connection, see annex §1 Installation of
BUS connections.
0-10V output corresponds to
VOC, CO2 and HR combined.
(See technical specification for
details)
HVAC 2
High
Speed
HVAC 1
Low
Speed
HVAC 2-1
0-10 V Output
Logic NC
Logic NO
HVAC 2-1
HVAC two speeds
HVAC continuous
HVAC one speed
+
-
N

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 11/27
7.2.4. EnOcean sensor mode option
Principle
The link with the HVAC is done by radio waves.
7.2.4.1. Pairing
In order to send the measured values or commands to actuators, it is necessary that the probe to be
paired with one or more actuators. This is achieved through "the LCD tools" temporarily mounted on
the probe. Details are described in the document “Setting the E4000-NG air quality probe in EnOcean
sensor mode”
Beside, for temperature control, EnOcean sensors can be associated with the E 4000 probe (Ex: window
handle to turn off the heating when open, presence sensor or card to switch to ECO mode)
7.2.4.2. Telegram Transmission Principle
In EnOcean sensor mode
The probe sends a telegram of a different profile every 5 seconds (if paired).
Without annex probe, the E4000-NG probe is sending 5 telegrams (1 for ventilation control, 1 for CO2
+ Temperature & Humidity, one for VOCs, 1 for heater control, 1 for cooling control) so a 25 to 30
seconds cycle.
Telegram emissions are not conditioned by changes of measures because emission rate is enough vis-à-
vis the HVAC.
This rate is not adjustable.
In EnOcean gateway mode, the probe sends telegrams according to events.
7.2.4.3. Description Radio Telegram
In EnOcean sensor mode
EnOcean profiles:
The following telegrams are sent:
• Controls for ventilation (Bi Directional) (EEP 4BS: A5-20-02)
• Or Commands for continuous ventilation (uni-directional) (EEP RDS: F6-02-01)
• Or Commands for single-speed ventilation (ON/OFF) (EEP RDS: F6-02-01)
• Or Commands for Two-speed ventilation (ON/OFF) (EEP RDS: F6-03-01)
• And CO2, Humidity and Temperature Measurements (EEP 4BS : D2-04-08)
• And VOCs Measurement (EEP 4BS: A5-09-0C)
And for temperature heating control:
• Control valve battery operated (Bi Directional) (EEP 4BS: A5-20-01)
• Or Control valve Basic (Bi Directional) (EEP 4BS: A5-20-02)
LCD tool
LCD tool connectors

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 12/27
• Or Control valve wired (Bi Directional) (EEP 4BS: A5-20-03)
• Or Control Generic HVAC Interface (Bi Directional) (EEP 4BS: A5-20-10)
• Or Temperature (setting + measure) (EEP 4BS: A5-10-03)
And for temperature cooling control:
• Control valve battery operated (Bi Directional) (EEP 4BS : A5-20-01)
• Or Control valve Basic (Bi Directional) (EEP 4BS : A5-20-02)
• Or Control valve wired (Bi Directional) (EEP 4BS : A5-20-03)
• Or Control Generic HVAC Interface (Bi Directional) (EEP 4BS : A5-20-10)
• Or Temperature (setting + measure) (EEP 4BS : A5-10-03)
And, if annex probes are installed:
• Radon Measurement (EEP 4BS: A5-09-06)
• And or Particles Measurement (EEP 4BS: A5-09-07)
• And or Ozone Measurement (EEP 4BS: A5-09-05)
The control algorithm is similar to that of relays (ventilation 1 or 2 speeds) and 0-10V output
(continuous ventilation) of the analog module and combines the CO2, VOCs and humidity
measurements.
The thresholds setting of CO2 and humidity (VOC thresholds are regulatory) is active in EnOcean
sensor mode as for the analog module.
In EnOcean gateway mode
EnOcean profiles:
The gateway supports most of the EEP2.1 plus few more telegrams approved since the publication of
the EEP2.1
The only exceptions are CO2 and VOC telegrams, the probe providing already those data. CO is also
voluntarily not handled
7.2.4.4. Transmission Range
As radio signals are electromagnetic waves, the signal is damped on its way from the sender to the
receiver. That is to say, the electrical as well as the magnetic field strength is removed inversely
proportional to the square of the distance between sender and receiver (E,H~1/r²).
Beside these natural transmission range limits, further interferences have to be considered: Metallic
parts, e.g. reinforcements in walls, metallized foils of thermal insulations or metallized heat-absorbing
glass, are reflecting electromagnetic waves. Thus, a so-called radio shadow is built up behind these
parts.
Building material used in a building is of paramount importance for the evaluation of the transmitting
range. For an evaluation of the environment, some guide values are listed:

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 13/27
Brick walls/
Aerated concrete blocks
(ACB)
20 meters through
maximum 3 walls
Plaster board/
Wood (dry)
30 meters through
max. 5 walls
Reinforced concrete
10 meters through
maximum
1 wall/ceiling
Other materials
Typical range
Air (Visual contacts)
30m in passages, corridors, up to 100m in halls
Windows with thermal insulation
5m through 1 Window maximum
Supply blocks and lift shafts should be seen as a compartmentalisation
In addition, the angle with which the signal sent arrives at the wall is of great importance. Depending on
the angle, the effective wall strength and thus the damping attenuation of the signal changes. If possible,
the signals should run vertically through the walling. Walling recesses should be avoided.
Other Interference Sources
Devices that also operate with high-frequency signals, e.g. computer, audio-/video systems, electronical
transformers and ballasts etc. are also considered as an interference source.
The minimum distance to such devices should amount to 0,5m.
Find the Device Positioning by means of the Field Strength Measuring Instrument EPM100
EPM 100 is a mobile tool for measuring and indicating the received field strength (RSSI) of the
EnOcean telegrams and disturbing radio activity at 868,3MHz. It supports electrical installers during the
planning phase and enables them to verify whether the installation of EnOcean transmitters and
receivers is possible at the positions planned. It can be used for the examination of interfered
connections of devices, already installed in the building.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 14/27
8. Insert gas sensors
8.1. Sensor on mini SD card
8.2. CO2 single band NDIR Sensor
This sensor is provided already plugged on the mother board.
8.3. CO2 double band NDIR Sensor
This sensor is provided already plugged on the mother board.
VOC
VOC sensor module is supplied in sealed waterproof bags
.Introduce them into the slot
located on the back side of the card.
Well comply with locations.
Do not open pouches until ready to
install sensors.
Press until it clicks. The sensor
should not pop up.
Insert the sensor when the motherboard is ready to be turned on.

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 15/27
9. Powering
At power up, the red status LED will flash alternatively with the green LED during the initial phase
of gas sensors conditioning (30 seconds), and finally the green LED will flash every 2 seconds
indicating the good functioning of the probe. During this gas sensors conditioning phase ventilation,
heating and cooling commands are minimal.
The red LED indicates defaults.
The type of failure is indicated by the number of LEDs flashing ("message") in the following order of
priority of default detected:
1 flash: Voltage too high (>35V DC or 25V AC)
2 flashes: low voltage (<15V DC or 10.6V AC)
3 flashes: Calibration EEPROM defective
4 flashes: Humidity sensor defective (out of range)
5 flashes: Faulty temperature sensor (out of range)
There is a break of 2 seconds between each "message"
If the red LED is continuously ON, it indicates that a KNX or LON daughter board has been detected
but communication with this board has failed.
Each location of gas sensor also includes a red LED.
At power up, if no sensor is detected, both LEDs turn red permanently.
If a sensor is detected and the test is negative, the LED blinks rapidly.
If the test result is positive, the LED goes out.
When the sensor reaches the end of life (10 years) the red LED turns ON to request his replacement.
The countdown is on board each sensor module.
Main board status LEDs
Sensors Status LEDs

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 16/27
10.Threshold settings (EnOcean, Modbus RS485 and
Analogical Board)
10.1. Position the micro switches
Two dry contacts of analog board (speed 1 and 2) or RS485 & EnOcean commands operate based on
CO2, VOCs and RH parameterized thresholds by micro switches:
If the actuator is an On/Off type, the triggering thresholds are those selectable as per here above. If one
of the measures overpasses one of the thresholds, the ventilation is trigged ON. In this case, hysteresis
to stop ventilation are: CO2: 100 ppm, VOC: 10% of the threshold, RH: 5% of the threshold.
If the paired actuator is continuous, please refer to the 0-10V output manual because the algorithm is the
same one.
See http://www.nano-sense.com/Docs/UK/E4000-NG/E4000-NG-Analog-option.pdf
The continuous command is a mix of CO2, VOC and humidity (with an OR function: the most
significant prevailing over others). Only the micro switch # 4 and 1 can set the ventilation speed. There
is always a minimum of 10% ventilation for the building health.
Logic of dry contact NO, Normally Open, Normally
Closed.
Dry contact #2 thresholds: CO2: 1500 or 2000ppm
(selectable H = High / L = Low) during more than 2
minutes or RH threshold + 5% over 60 seconds.
Dry contact # 1 thresholds: CO2: 700 ppm or 1200
(selectable H = High / L = Low) during more than 10
minutes or RH threshold (default 75%) over 2 minutes.
VOC thresholds for regular building or sustainable
building like BREEAM or LEED:
Dry contact #1: 300 or 1000 µg/m3more than 10 minutes
Dry contact #2 :1000 or 3000 µg/m3more than 2 minutes
No marking but similar to others:
H = Haut (High) / L = Bas (Low)

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 17/27
10.2. RH (humidity) threshold settings with LCD tool
It is possible to set the humidity threshold as follows:
The adjustable threshold corresponds to the dry contact # 1 threshold of the previous chapter. Dry
contact # 2 threshold is deduced from this threshold by adding 5% RH.
By default the threshold is set to 75% RH.
R
S
4
8
5
E
N
O
C
E
A
N
>
S
E
T
T
I
N
G
E
X
I
T
In the main menu, select "SETTING" and press OK (Middle button).
The screen displays the following choices:
S
T
E
P
S
T
E
M
P
>
H
U
M
V
O
C
R
E
P
E
A
T
R
E
T
U
R
N
Then select "HUM" and press OK (Middle button).
The screen displays the following choices:
7
7
%
<
-
O
K
-
>
Set the desired threshold by pressing more or less then confirm with OK (Middle button).
Select "SAVE" and press OK (Middle button) to save the setting
>
S
A
V
E
C
A
N
C
E
L
Press OK (Middle button) and the following confirmation message is then displayed.
S
A
V
E
D

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 18/27
10.3. CO2 Baselines expressed in ppm
200 000
Lethal (deadly) for humans
100 000
Lethal in 10 minutes without an action for resuscitation
40 000
Threshold of irreversible effects on health
5000
Maximum concentration on workplace (8h)
4000
Bedroom poorly ventilated
1000
Significant decrease in intellectual performance. Factor for asthma or
building syndrome. Maximum value allowed inside buildings.
390
Outside air
10.4. Guide values for VOCs
Currently, there is no specific standard for VOCs in non-industrial settings outside Publicly Available
Establishments (PRAs) in some countries. There are thousands of different VOCs but some are
recognized as a specific health risk and are subject to specific regulations.
However, thresholds can be used for buildings classified as High Environmental Quality with regard to
VOCs.
Leadership in Energy and Environmental Design (LEED) initially used a threshold of 200 μg / m3of
TVOC but it proved difficult to implement and was eventually raised to 500 μg / m3. The European
Community has attempted to circumvent the problem by using a 300 μg / m3TVOC limit without a
single compound contributing more than 10% of the total.
The literature generally seems to agree that 200μg / m3represents an "acceptable" level of TVOC and
that 3000μg / m3represents a "dangerous" level of TVOC.
However, some would like to raise the threshold between 300 and 3000μg / m3. Part of this problem lies
in the fact that some occupants appreciate fragrant VOCs of perfumes (cleaning products, scented
candles, potpourri, so-called deodorants, essential oils, etc.) and try to increase the threshold while other
occupants are not inclined and may actually experience nausea, headaches, and other associated
symptoms.
The following table is recognized by many consultants:
Housing and offices
TVOC levels in μg/m3
meaning
< 200
Ideal
200-300
Good
300-400
Acceptable
400-500
Marginal
> 500
Bad

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 19/27
Symptoms above 3000μg / m3usually include drowsiness, eye and respiratory irritation, general
malaise, headache, nausea and exacerbation of respiratory symptoms. Some data suggest that elevated
levels of COVt amplify the harmful effects of specific harmful VOCs (cocktail effect).
COVT
Formaldehyde
Benzene
4-PCH*
HQE (French)
300 μg/m3
10 μg/m3
2 μg/m3
NA
DGNB (German)
<500 μg/m3 : 50 marks
<1000 μg/m3 : 25 marks
<3000 μg/m3 : 10 marks
<60 μg/m3 : 50
marks
<120 μg/m3 : 10
marks
NA
NA
BREEAM (UK)
300 μg/m3
100 μg/m3
NA
NA
LEED (USA)
500 μg/m3
33 μg/m3
NA
6.5 μg/m3
* 4-phenylcyclohexene
A ventilation threshold set between 0.3 and 0.5 mg / m3 therefore seems recommended for TVOC (300
μg / m3and 500 μg / m3) for certified sustainable buildings.
Thresholds for specific VOCs and known carcinogens such as formaldehyde and benzene are well
below that of the TVOC and would require selective detection. Unfortunately, the current technology
does not yet make it possible to specifically measure these carcinogenic VOCs. However, the TVOC
load includes some of these carcinogenic VOCs and a low TVOC threshold contributes to reduce these
as well.
11.Type of VOC measure settings
The measurement of VOC for ventilation control requires an auto-zero based on the healthiest air seen
in the context of ventilation or aeration. Indeed, the outdoor air is never ideal and it would be futile to
want to reach a level of VOC lower than that of the fresh air, at the risk of over ventilating
unnecessarily. The absolute measurement of VOC uses the zero factory. This zero is obtained after
hours of fresh air cleaning. In this configuration, there is no auto zero. Factory zero drift cannot be fully
guaranteed for years and will depend mainly on possible sensor contaminations.
By default, the VOC measurement is in relative measurement mode. It is possible to choose between
absolute VOC measurement and relative VOC measurement as follows:
R
S
4
8
5
E
N
O
C
E
A
N
>
S
E
T
T
I
N
G
E
X
I
T
In the main menu, select "SETTING" and press OK (Middle button). The screen displays the following
choices:
S
T
E
P
S
T
E
M
P
H
U
M
>
V
O
C
R
E
P
E
A
T
R
E
T
U
R
N
Then select "VOC" and press OK (Middle button).
The display shows the current mode:

Guide d’Installation sonde E4000 E4000 probe Installation Guide
www.nano-sense.com All Rights Reserved Tel: [phone] page 20/27
V
O
C
>
R
E
L
To choose another mode press OK (Middle button)
The display shows the possible modes:
A
B
S
>
R
E
L
Select the mode by moving the indicator with the right or left key then press OK (Middle button).
Select "SAVE" and press OK (Middle button) to save the setting.
>
S
A
V
E
C
A
N
C
E
L
Press OK (Middle button) and the following confirmation message is then displayed.
12.Connection diagram according to position of micro
switches
S
A
V
E
D
To ventilation control box
Connection with negative
logic (NC) for one speed
ventilation.
The micro-switch “1&2”
in NC position.
Connection with positive
logic (NO) for one speed
ventilation.
The micro-switch “1&2”
NO position.
Connection with positive
or negative logic for two
speeds ventilation.
The micro-switch “1&2”
in the position proper to
the logic of ventilation