User Manual

CE1N2866E / 03.12.1998 Siemens Building Technologies
2/4 Landis & Staefa Division
Of each connected consumption meter the pulse adapter stores:
•
The current meter reading
•
The meter reading on the set day
Random data transmission takes place six times per day.
The pulse adapter is powered by a lithium battery with a long service life.
The AEW22.2 is comprised of base, cover and wall holder made of plastic. Base and
wall holder are interconnected by means of a protective foil. The base contains the
printed circuit board with the microprocessor and the lithium battery (DC 3 V). The prin-
ted circuit board also carries the connector for the direct connection of the service unit.
The wall holder is used as a mounting base and is secured to the wall by means of two
screws. The cover is engaged at the top of the base, swung downward and sealed.
The cables of the two meters are introduced through holes at the bottom of the cable
holder. The two terminal blocks for connecting the meters can be accessed from the
rear of the cable holder.
The local standards and regulations for operating radio equipment and for electrical in-
stallations must be complied with. The type of building construction may have an impact
on the range of transmission.
Detailed information on engineering is given in the Planning Manual, reference no.
J2861E.
The connections of each device or meter input (two-wire connection) are interchange-
able.
When connecting non-potential-free outputs, the polarity indicated on the label must be
observed.
The pulse adapter may not be installed in metal casings.
The parameters of the entire radio equipment are set by Landis & Staefa service staff.
Using the service unit, the following data are entered into the pulse adapter:
•
Type of pulse source (Reed, Reed with Namur, Open Collector, etc.) per input
•
Kind of medium (gas, water, etc.) per input
•
Physical variable (kWh, m
3
, etc.) per input
•
Pulse valency per input
•
Set day (one set day per year) per input
•
Reading of meters when commissioning the pulse adapter, per input
•
Meter number per input
•
Identification of pulse adapter
If the data of the pulse meters are known, the pulse adapter can be programmed with
ready data records. In that case, only the meter number and the meter reading need to
be entered.
After closing the casing, the pulse adapter sends several commissioning telegrams to
the central radio readout unit.
Data handling
Data transmission
Power supply
Mechanical design
Engineering notes
Mounting notes
Commissioning
notes