33
TEDS
A1813-1.1 en
HBM
6
Specifications
Type
TEDS memory module in transducer
cable
Data transfer
To switch from measurement mode to data
mode in order to transfer TEDS data
Apply a supply voltage between one of
the excitation voltage lines (HBM des-
ignation: 2) and the associated sensor
circuit (HBM designation: 2‘ ).
The sensor circuit then acts as the sig-
nal lead and the excitation voltage line
as the ground.
If this voltage is no longer present, the
module switches to measurement
mode, in which it no longer interacts
with the excitation voltage and the
measurement signal.
Nominal value of supply voltage for TEDS data
memory
V
5
Working range of supply voltage for TEDS data
memory
V
3.4 ... 6.0
Data transfer protocol
As specified in IEEE standard 1451.4
(”one wire protocol”).
Data format
As specified in IEEE standard 1451.4
Maximum permissible excitation voltage
for the motherboard
for transducers with integrated TEDS
V
V
30
Dependent on transducer
Nominal temperature range
o
C
-20 ... + 60
Storage temperature range
o
C
-25 ... +70
Dimensions
Motherboard
Metal sleeve (when installed by HBM)
mm
mm
20x 5.5
93 long, Ø 15
Protection class
(When installed in metal sleeve by HBM)
IP54
EMC conformance
When installed in metal sleeve by
HBM, EN 61326 is complied with.
This ensures that the TEDS module
has no effect on conformance of the
whole system with EMC Guideline
89/336/EEC.
