
Annex
Manual TRZ 03· EN08 ·2018 September, 10th
71
Annex
Certificates for LF-/HF-sensors and encoder
The transmitters used in the turbine meters have their own ATEX approval and are
marked according to the following table.
Pulse
transmitter
type
Type of sensor
EC-Type examination
Certificate
according to directive 94/9/EG
Manufacturer Annex
LF-
pulse
transmitter
(LF)
Reed contact:
59140-010
Not required
(passive component)
Hamlin
IP22 4NX
Diss, Norfolk
England
A
1 page
HF-
pulse
transmitter
(HF1)
Inductive proximity
switch: N7S20A
BVS 08 ATEX E026
IECEx BVS 09.0016
II 1 G Ex ia IIC T* Ga
IFM electronic
D-45127 Essen
Germany
B
5 pages
HF-
pulse
transmitter
(HF2 and HF3)
Inductive proximity
switch: NF503A
PTB 01 ATEX 2192
IECEx PTB 08.0058
II 1 G Ex ia IIC T5 Ga
IFM electronic
D-45127 Essen
Germany
C
8 pages
* see the certificate below