DA Z22 —EXTERNAL DIGITAL INTERCOM STATION FOR EXPLOSIV AREAS 2/22

External digital intercom stations DA-Z22 series are especially designed for application in highly explosive areas 2/22 as defined by the European standard IEC 60079-15 and IEC 61241.

Type of protection: Ех пА пС II Т4 DIP A22 ТА Т4
Explanations:
nA : no electromagnetic emission
nC : protected contacts

II : for gas-explosive areas
T4: surface temperature > 135°C
DIP A 22: deflagrating mixture protection

Components:

Reinforced glass-fiber polyester housing, hardly inflammable, black color
Front panel assembly with microphone and loudspeaker
6 DSA electronic unit

Features:

Modular design for easy maintenance
Rotary switches for direct communication links
Call or busy signal by light emitting diodes
Noise compensated microphone
Adjustable microphone sensitivity and volume
Potential-free relay point

Options:

Booster amplifier 25 DVX01.

Main characteristics

DA Z22 Mechanical data:

Dimensions	450 x 134 x 183 mm
Cable glands	2 x М25+ 2 x М20
Weight	~4,5 kg

DA Z22 Electrical data:

Operating voltage range	48 — 72 VDC
Quiescent & max. current consumption	20 mA / 100 mA
Loudspeaker output	15 W
Loudspeaker resistance	8 Ohm
Frequency range	300 — 3400 Hz
Sound pressure level (30 cm distance)	115 dB