E+E Elektronik EE8915 Product Manual

USER GUIDE

*The supply circuit must be fused with ≤ 8A

EE8915 – CO2 Sensor for Railway Applications

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

FIX INSTALLED CABLE M12 CONNECTOR

Core number Function

1 10 – 35 V DC supply

2 GND supply

3 GND analogue output

4 Current output

5 Voltage output

34

5

1 2

front view

Voltage output

Current output

GND analogue output

Power supply 10 - 35 V DC*

GND

2

4

V

mA

5

1

3

+

-

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

WALL MOUNT DUCT MOUNT

98 (3.86“)

48 (1.89“)

85 (3.35“)

Ø4.5

35 (1.38“)

(0.18“)

(7.04 or 1.30“)

178.7 or 28.7

(8.18 or 2.27“)

207.7 or 57.7

39.8 (1.57“)

Ø12 (0.47“)

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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.

Rubber gasket
OR
Optional mounting flange

Filter

CORRECT INCORRECT

Air flow

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.

access cover

2

During setup or adjustment via USB service interface, the EE8915 requires external power supply.

EE8915

PC

EE-PCS PRODUCT CONFIGURATION SOFTWARE

1. Download the EE-PCS Product Configuration Software from www.epluse.com/configurator and install it on the PC.

2. Connect the E+E device to an USB port of the PC.

3. Start the EE-PCS software.

4. Follow the instructions on the EE-PCS opening page for scanning the ports and identifying the connected device.

5. 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

Red LED

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!

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TECHNICAL DATA

Measurands

CO

2

Measurement principle dual wavelength non-dispersive infrared technology (NDIR)
Measuring range 0...2000 / 5000 / 10 000 ppm
Accuracy at 25 °C (77 °F) 0...2000 ppm: < ± (50 ppm +2 % of mv)
and 1013 mbar (14.7 psi) 0...5000 ppm: < ± (50 ppm +3 % of mv)

0...10000 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

63

wall: < 160 s
Temperature dependency (typ.) ± (1 + CO2 concentration [ppm] / 1000) ppm/°C, for -20...+45 °C (-4...+113 °F)
Residual pressure dependency1) 0.014% of mv / mbar (ref. to 1013 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 DC
Current consumption (typ.) 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 class enclosure IP65 / NEMA 4
Service interface USB, Micro B
Electrical connection connector M12x1 or cable with flying leads, max. 3 m (9.85 ft)
Electromagnetic compatibility railway standard: EN50121-3-2:2016 EN50121-1:2017
EN61326-1 EN61326-2-3 Industrial Environment
FCC Part 15 ICES-003 ClassB
Working and storage conditions -40...+60 °C (-40...+140 °F) 0...95 % RH (non-condensing)

1) The pressure dependency of a non-compensated CO2 sensor is 0.14% of mv / mbar

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 thereceiver 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

[phone] / [e-mail]

Langwiesen 7 • A-4209 Engerwitzdorf
Tel: [phone] • Fax: [phone]
[e-mail] • www.epluse.com

LG Linz Fn 165761 t • UID-Nr. ATU44043101
Place of Jurisdiction: A-4020 Linz • DVR0962759

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BA_EE8915_e // v1.3 // Modification rights reserved