E+E EE820 Specifications

EE820

CO2 Sensor for Demanding Applications

The EE820 CO2 sensor is optimized for use in harsh, demanding applications, such as hatchers, incubators, life stock barns or greenhouses.

Outstanding Accuracy

A multiple point CO

and temperature factory adjustment

procedure leads to excellent CO2 measurement accuracy over the entire temperature working range, so the EE820 can even be installed outdoors.

Long-term Stability

The EE820 incorporates the E+E dual wavelength NDIR CO

sensor, which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability.

High Resistance to Pollution

With its robust, functional IP54 enclosure with a special lter the

EE820 can be employed even in harsh environment.

Fast Response Time

The fast response time version of EE820 is tted with a forced air circulation module installed behind the lter.

Analogue and Digital Outputs

The CO

measured data range up to 10 000 ppm is available on the analogue output (voltage / current) or on the RS485

interface with Modbus RTU or BACnet MS/TP protocol.

Easy Conguration and Adjustment

An optional adapter and the free EE-PCS Product Conguration Software facilitate the conguration and adjustment of

the EE820.

Features

IP54 Enclosure

Bayonet screws

» Open/closed with a ¼ rotation

Appropriate for US mounting requirements

» Knockout for ½” conduit tting

External mounting holes

» Easy and fast mounting with

closed cover

» Electronics protected against

construction site pollution

Electronics

» Optimum protection against mechanical

damage during installation » CO2 autocalibration » Temperature compensation » Excellent resistance to pollution

Test report

» According DIN EN 10204 - 2.2

Service interface for

conguration and adjustment

232

v1.6 / Modification rights reserved

EE820

Technical Data

Measured values

Measuring principle dual wavelength non-dispersive infrared technology (NDIR) Measurement range 0...2 000 / 5 000 / 10 000 ppm Accuracy at 25 °C and 1 013 mbar

0...10 000 ppm: < ± (100 ppm +5 % of mv) Response time t 140 s (fast, with forced air circulation module) Temperature dependency typ. ± (1 + CO Sample rate approx. 15 s

Output

Analogue

0...2 000 / 5 000 / 10 000 ppm 0-5 / 0-10 V -1mA < I 4-20 mA R Digital Interface RS485 with max. 32 unit load devices on one bus Protocol Modbus RTU or BACnet MS/TP

General

Supply voltage 24 V AC ±20% 15 - 35 V DC Current consumption, typ. 15 mA + output current, for standard response time 60 mA + output current, for fast response time Current peak, max. 350 mA for 0.3 s (analogue output) 150 mA for 0.3 s (RS-485 interface) Warm up time Enclosure material Polycarbonate, UL94V-0 approved Protection class IP54 Electrical connection Screw terminals 2.5 mm² or M12 plug Electromagnetic compatibility EN61326-1 EN61326-2-3 Industrial Environment FCC Part 15 ICES-003 ClassB Working conditions -20...60 °C Storage conditions -20...60 °C

1) for performance according to specification

(77 °F) 0...2 000 ppm: < ± (50 ppm +2 % of mv) mv = measured value

(14.7 psi) 0...5 000 ppm: < ± (50 ppm +3 % of mv)

, typ. 300 s (standard)

concentration [ppm] / 1 000) ppm/°C (-20...45 °C) (-4...113 °F)

< 1 mA

< 500 Ohm R

< 5 min

(-4...140 °F) 0...100 % RH (non-condensing) (-4...140 °F) 0...95 % RH (non-condensing)

= load resistance

Dimensions (mm/inch)

±0.3

±0.11

3.54

EE820

“

5mm

0.2“

19mm

0.75“

v1.6 / Modification rights reserved

46mm

1.81“

FOR CONDUIT INSTALLATION

CABLE GLAND M16x1.5

101mm

3.98“

3.17“

80.6mm

M12x1 Plug

Mating M12x1 connector for self assembly is included in the scope of supply

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