Non authorized translation
EC-type-examination Certificates without signature and official stamp shall not be valid. The certificates may be circulated only
without alteration. Extracts or alterations are subject to approval by the TÜV Hannover/Sachsen-Anhalt e.V.
Page 2 of
8
(13)
SCHEDULE
(14)
EC- TYPE-Examination CERTIFICATE No. TÜV 99 ATEX 1488
(15) Description of equipment
The digital indicator type D122 ... serves as direct indicator of measured values of
intrinsically safe 4 ..20 mA current circuits in explosive endangered areas.
The maximum ambient temperature is 45°C in temperature class T6 and 60°C in the
temperature class T5.
Electrical details
Supply
and
signal current
circuit
(Terminal 1,2)
Exclusive connection to a certificated intrinsically safe
current circuit with the following highest values:
U
i
= 65 V
I
i
= 160 mA
Effective internal inductivity 40 µH
Effective internal capacity
10 nF
Only Type D122.T.x.x.x
Supply
and
signal current
circuit
(Terminal 1,2)
Exclusive connection to a certificated intrinsically safe
current circuit with the following highest values:
U
i
= 30 V
I
i
= 160 mA
P
i
= 1,6 W
Effective internal inductivity 40 µH
effective internal capacity
10 nF
Terminals
3,4
Bridget
Only TYP 122.x.x.x.BM with additional protection type moulding and the sign EEx m
[ib] IIC T6 bzw. EEx m [ib] IIC T5
Input
current
circuit (wire)
U
m
= 250 V and to connect to ground
