Type 8905

4 | 12

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Connection & communication

Sensor cube

• Max. 6 internal sensor cubes, max. 2 measurement water

• Max. connection of 30 external sensor cubes via Bürkert-Systembus (büS)

• Max. büS length 100 m (without T-connections)

Electrical connection

• Housing containing the electronic modules: 2 terminal blocks

– male terminal block to connect the power supply to the system

– female terminal block to feed the power supply to the sensor modules

• Housing containing the sensor modules: 2 M12 connectors

– male M12 connector to connect the power supply for the sensor modules

– female M12 connector to connect the power supply to an external device.

Approvals and Certificates

Directives

CE directive

The applied standards, which verify conformity with the EU Directives, can be found on the

EU Type Examination Certificate and/or the EU Declaration of conformity (if applicable)

Environment and installation

Installation

Wall mount unit, click system with wall-mounting bracket

Ambient temperature

• Operation: + 3…+ 40 °C (+ 37…+ 104 °F)

• Storage: - 20…+ 70 °C (- 4…+ 140 °F) (without sensor cube)

Relative air humidity

< 95 %, without condensation

Height above sea level

Max. 2000 m

Operating condition

Continuous

Equipment mobility

Fixed

Application area

Indoor

Degree of protection according to

IEC/EN 60529

IP65 with closed and tight housings

Installation category

• With an AC switched-mode power supply: category II, according to UL/EN 61010-1

• With a direct DC power supply: Category I, according to UL/EN 61010-1

Pollution degree

Degree 2, according to UL/EN 61010-1 with closed and tight housings

1.) When a chlorine sensor cube is present within the system: pH value is restricted to pH 5…pH 9