E E ELEKTRONIK EE8915 CO2 Sensor for Railway Applications User Guide
- June 9, 2024
- E E ELEKTRONIK
Table of Contents
EE8915 CO2 Sensor for Railway Applications
User Guide
EE8915 CO2 Sensor for Railway Applications
Find this document and further product information on our website at www.epluse.com/ee8915.
SCOPE OF SUPPLY
- EE8915 sensor according ordering guide
- Test report according to DIN EN10204-2.2
- Quick guide
- Rubber gasket (only for duct mount)
CAUTION
The device shall not be exposed to extreme mechanical or thermal stress.
The EE8915 is not appropriate for safety, emergency stop or other critical
applications where device malfunction or failure could cause injury to humans
and other living beings.
CONNECTION DIAGRAM
Important note:
The manufacturer cannot be held responsible for personal injuries or damage to
property as a result of incorrect handling, installation, wiring, power supply
and maintenance of the device.
FIX INSTALLED CABLE
| Core number | Function |
|---|---|
| 1 | 10 – 35 V DC supply |
| 2 | GND supply |
| 3 | GND analogue output |
| 4 | Current output |
| 5 | Voltage output |
M12 CONNECTOR
Very important: For failure-free operation and performance according to
the specs, the GND supply and the GND analogue output must be wired
separately.
Analogue outputs factory settings according ordering guide (see datasheet at
www.epluse.com/ee8915 ):
| Order code | Voltage output | Current output |
|---|---|---|
| GA7 | 0 – 10 V | 4 – 20 mA |
| GA11 | 0 – 5 V | 0 – 20 mA |
DIMENSIONS
INSTALLATION
WALL MOUNT
Choose a location which minimizes the dust deposits on the filter.
DUCT MOUNT
When correctly installed, a small amount of air will flow through the divided
probe into the EE8915 enclosure, where the CO2 sensing cell is located, and
back into the duct.
Very important
For accurate measurement and response time according to specification:
- Minimum air speed in the duct shall be 1 m/s (196 ft/m).
- The air flow shall be perpendicular to the opening holes on the head of probe.
SETUP AND ADJUSTMENT
The EE8915 is ready to use and does not require any configuration by the user.
The factory setup of EE8915 corresponds to the type number ordered. For
ordering guide please see data sheet at
www.epluse.com/ee8915.
If needed, the user can change the factory setup by using the USB service
interface and the EE-PCS, Product Configuration Software, free download at
www.epluse.com/configurator.
One can change the CO2 output signal, the scaling of the outputs and perform
CO2 adjustment.
It is possible to enable or disable the pressure compensation (factory
setting: enabled) and the NAMUR error indication (factory setting: disabled).
The USB port (type Micro-B, smartphone standard) is located behind the access
cover.
During setup or adjustment via USB service interface, the EE8915 requires external power supply.
EE-PCS PRODUCT CONFIGURATION SOFTWARE
- Download the EE-PCS Product Configuration Software from www.epluse.com/configurator and install it on the PC.
- Connect the E+E device to an USB port of the PC.
- Start the EE-PCS software.
- Follow the instructions on the EE-PCS opening page for scanning the ports and identifying the connected device.
- Click on the desired setup or adjustment mode from the main EE-PCS menu on the left and follow the online instructions.
ERROR INDICATION ON THE ANALOGUE OUTPUT
The EE8915 features an error indication on the analogue output according to
NAMUR recommendations (factory setting: disabled).
The feature can be enabled with the EE-PCS Product Configuration Software, see
above.
| Output signal | NAMUR signal level |
|---|---|
| 0 – 5 V | 5.5 V |
| 0 – 10 V | 11 V |
| 4 – 20 mA | 21 mA |
| 0 – 20 mA | 21 mA |
STATUS LEDs
The status LEDs are located behind the access cover.
Green LED
flashing = Normal operation
Red LED
off = Normal operation
on = Failure. Contact E+E after sales service.
flashing = Failure. Also indicated on the analogue output (NAMUR indication
enabled). The failure might be temporary, caused for instance by overheating.
If the flashing persists, contact E+E after sales service.
MAINTENANCE
Longer response time of the wall mount EE8915 is caused by duct deposits on
the filter.
Clean the filter by sweeping it gently with a soft, dry cloth!
TECHNICAL DATA
Measurands
CO2
Measurement principle| Dual wavelength non-dispersive infrared technology
(NDIR)
Measuring range| 0…2 000 / 5 000 / 10 000 ppm
Accuracy at 25 °C (77 °F) and 1013 mbar (14.7 psi)| 0…2 000 ppm: < ± (50 ppm
+2 % of mv)
0…5 000 ppm: < ± (50 ppm +3 % of mv)
0…10 000 ppm: < ± (100 ppm +5 % of mv)
mv=measured value
Response time t(typ.)| Duct: < 100 s at 3 m/s (590 ft/min) air speed
Wall: < 160 s
Temperature dependency (typ.)| ± (1 + CO2 concentration [ppm] / 1 000) ppm/°C,
for -20…+45 °C (-4…+113 °F)
Residual pressure dependency¹)| 0.014% of mv / mbar (ref. to 1 013 mbar), for
-20…+45 °C (-4…+113 °F)
Measuring interval| Approx. 15 s
Outputs
CO2| 0 – 5 V / 0 – 10 V -1 mA < IL < 1 mA
0 – 20 mA / 4 – 20 mA RL < 500 Ohm
General
Power supply class III | 10 – 35 V DC²)
24 V DC nominal voltage Un according to EN 50155
Current consumption (typ., @ 24 V supply)| Average: 10 mA + output current
Peak: 105 mA for 0.3 s
Minimum air speed in the duct| 1 m/s (196 ft/min)
Enclosure material| Polycarbonate, UL94V-0 approved
Protection rating enclosure| IP65 / NEMA 4X
Service interface| USB, Micro B
Electrical connection| Connector M12x1 or cable with flying leads, max. 2 m
(6.56 ft)
Electromagnetic compatibility| Railway standard: EN 50121-3-2:2016 EN
50121-1:2017
EN 61326-1 EN 61326-2-3
FCC Part 15 ICES-003 Class B
Industrial Environment
Working and storage conditions| -40…+60 °C (-40…+140 °F) 0…95 %RH (non- condensing)
- The pressure dependency of a non-compensated CO2 sensor is 0.14% of mv / mbar
- USA & Canada class 2 supply required, max. supply voltage 30 V DC
USA
FCC notice:
This equipment has been tested and found to comply with the limits for a
Class B digital device, 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
installation 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 or 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.
CANADIAN
ICES-003 Issue 5:
CAN ICES-3 B / NMB-3 B
INFORMATION
Langwiesen 7 • 4209 Engerwitzdorf • Austria
Tel: +43 7235 605-0 • Fax: +43 7235 605-8
info@epluse.com •
www.epluse.com
LG Linz Fn 165761 t • VAT No. ATU44043101
Place of Jurisdiction: 4020 Linz • DVR0962759
+43 7235 605 0 /info@epluse.com
BA_EE8915 // v1.5 // Modification rights reserved
Documents / Resources
| E E
ELEKTRONIK EE8915 CO2 Sensor for Railway
Applications
[pdf] User Guide
EE8915 CO2 Sensor for Railway Applications, EE8915, CO2 Sensor for, Railway
Applications
---|---
References
- Sensor Technology: Humidity, CO2, Flow & Temperature Measurement
- CO₂ Sensor for Railway Applications
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