Presented by: Gunawanta Girsang (Mr.) Consultant for Thermal Validation For inquiry please contact: Email: gunawan.girsang@gmail.com Mobile: 08521229.3099

1. Room Sensor for CO2,
Temperature and Relative
Humidity
EE800
Presented by: Gunawanta Girsang
(Mr.)/ Product Specialist
Consultant for Thermal Validation
For inquiry please contact:
Email: gunawan.girsang@gmail.com
Mobile: 08521229.3099

2. Introduction
 EE800 combines CO2, temperature (T) and relative humidity (RH)
measurement in one device with modern design. Additionally, it calculates
the dewpoint temperature (Td). EE800 with analogue outputs features an
optional passive T sensor, while at EE800 with RS485 additional physical
quantities are available on the Modbus RTU and BACnet MS/TP interface:
absolute humidity (dv), mixing ratio (r), enthalpy (h), frost point temperature
(Tf) and water vapor partial pressure (e).

3. M12J3D1MC10
P3BD8PY2BT2

4. Specification:
Measured values
 CO2
Measurement principle Dual Wavelength Non-Dispersive Infrared Technology (NDIR)
Working range 0...2000 / 5000 ppm
Accuracy at 25 °C (77 °F) 0...2000 ppm: < ± (50 ppm +2 % of measuring value)
Response time τ63 typ. 110 s
Calibration interval1) >5 years
 Temperature
Accuracy2) at 20 °C (68 °F) ±0.3 °C (±0.54 °F) RS485 digital interface;
±0.3 °C (±0.54 °F) voltage output / ±0.7 °C (±1.26 °F) current output
 Relative Humidity
Working range 10...90 % RH
Accuracy at 20 °C (68 °F) ±3 % RH (30...70 % RH) ±5 % (10...90 % RH)

5. Spec (cont’d)
Outputs
Analogue
 0...2000 / 5000 ppm 0-5 V / 0-10 V -1 mA < IL < 1 mA
 4-20 mA RL < 500 Ohm
 Digital Interface RS485 with max. 32 devices on one bus
 Protocol Modbus RTU or BACnet MS/TP

6. Spec (cont’d)
 General
Supply voltage 24 V AC ±20 % 15-35 V DC
Housing (polycarbonate) US Version: UL94V-0 approved / EU Version: UL94HB
approved
Protection class IP30
Display4) LC display: alternating CO2 / T / RH or Td
Electrical connection screw terminals max. 1.5 mm2 (AWG16)

7. Manual
CAUTION:
 The device shall not be exposed to extreme mechanical or thermal stress.
 This device is not appropriate for safety, emergency stop or other critical
applications where device malfunction or failure could cause injury to human
beings.
 The electronics board is an ESD sensitive device, please handle it accordingly
and avoid touching it during installation.
 Please allow min. 5 minutes warm up time for the device to reach the
specified measurement performance.
 The sensing cell shall not be exposed to any mechanical stress

8. Manual (Cont’d)
 The connecting cable or wires shall be positioned so that they do not impact
with the sensing cell. Failure to comply with this may lead to relevant
measurement errors.

9. DIMENSIONS / MOUNTING
 The electronics of EE800 are located in the front cover, which can be easily snapped on/off
once the back cover is fixed onto the wall (D = mounting holes) and wired
 OPENING THE ENCLOSURE
Press to release the latch A till the enclosure can be opened. Use a screwdriver or a pen.
 CLOSING THE ENCLOSURE
Set the front cover into flute B, rotate it like C and press it onto the back cover till the latch A
snaps in.
 IMPORTANT
In order to protect the front cover and the electronics from typical construction site pollution
(such as painting of the walls) the front cover should be snapped on only after the construction
works are completed.
 As EE800 is generally mounted onto a conduit box, for accurate measurement results it is
important to tighten the conduit box for avoiding false air ingress (along the electrical tubes
inside the wall)

10. CONNECTION DIAGRAM
 EE800 VOLTAGE OUTPUT

11. EE800 CURRENT OUTPUT

12. EE800 DIGITAL INTERFACE

13. MODBUS AND
BACNET
HARDWARE
The bus termination shall be realized with
120 Ohm resistor, switch on the board.
 Very important:
For proper function the power supply must
be strong enough to ensure supply voltage
within the specified range (see technical
data) at any time and at all devices in the
bus. This is particularly relevant when
using long and thin cables which can cause
high voltage drop; please note that a
single EE800 requires peak current of 150
mA.

14. ADDRESS SETTINGS

15. BACNet Properties

16. BACNet

17. Note:
 Take note following changes:
 1. The order code for the CO2 range changes from HRxxxx to HVx.
 2. The factory setting for the RS485 interface is now same as at other HVAC
products:
 Modbus RTU: Even Parity, Stop bits 1
 BACnet: No Parity, Stop bits 1

18. Miscellaneous Information
 Reinitialize Device (RD):
The RD function is used to restart/ reboot the entire transmitter via BACnet. To
use reinitialize device functionality a password is needed. The password is:
“BACnet123”.
 Device Communication Control (DCC):
The DCC functionality is used to stop initiating messages on the BACnet network.
After receiving a DCC stop initiate message, the device does not response to a
request any more, except to RD or DCC requests. The use of the device
communication control functionality is password protected. The password is:
“BACnet123”.