26 Supplement | Area Control Unit
Technical data
9.5.2 Electromagnetic environment
This device may only be used in environments specified in section "Environment of
use" on page 8.
The emissions characteristics of this equipment make it suitable for use in
industrial areas and hospitals (CISPR 11 class A). If it is used in a residential
environment (for which CISPR 11 class B is normally required), this equipment
might not offer adequate protection to radio-frequency communication services.
The user might need to take mitigation measures, such as relocating or re-orienting
the equipment.
9.5.3 Recommended separation distances from wireless
communication devices
To ensure that the full functional integrity of this device is not compromised, there
must be a separation distance of at least 1.0 m (3.3 ft) between this device and
wireless high-frequency communication equipment.
Emissions Compliance
Radiated emissions Class A, group 1 (30 MHz to 1 GHz)
Conducted emissions Class A, group 1 (150 kHz to 30 MHz)
Immunity against Test level and required electromagnetic
environment
Electrostatic discharge (ESD)
(IEC 61326-1)
Contact discharge: ±4 kV
Air discharge: ±8 kV
Fast transient electrical distur-
bances (bursts) (IEC 61326-1)
Power cable: ±2 kV
Longer signal input lines/output lines: ±1 kV
Surges (IEC 61326-1) Voltage, external conductor – external conduc-
tor: ±1 kV
Voltage, external conductor – protective
ground conductor: ±2 kV
Magnetic fields at mains fre-
quency (IEC 61326-1)
50 Hz: 30 A/m
Voltage dips and short interrup-
tions in the supply voltage
(IEC 61326-1)
Voltage dips of 30 % to 100 %, 8.3 ms to 5 s,
different phase angles
Radiated high-frequency distur-
bances (IEC 61326-1)
80 MHz to 2 GHz: 3 V/m
1)
2GHz to 2.7GHz: 1V/m
1) In the range of 250 MHz to 300 MHz the digital pressure display may be interrupted.
Conducted high-frequency distur-
bances (IEC 61326-1)
150 kHz to 80 MHz: 3 V
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