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Elster Messtechnik GmbH, Otto-Hahn-Straße 25, 68623 Lampertheim
Tel: +49 (0) 6206 933 0, Fax: +49 (0) 6206 933 100, www.elstermesstechnik.com
Artikel-Nr. 0080141141 - 2011-03-02 (F90S_M_09.01e/03.11)
2. Level / Technician`s Loop
1. Level / Main Loop
3. Level / Statistics Loop
*)
Up to the end of the month the consuption and reading date for that month will
be shown as 0.
8 Technical Data
Calculator
Ambient temperature
°C
5 ... 55
Temperature range
°C
1 ... 150
Temperature difference
K
3 ... 100
Power supply
3V, lithium
Lifetime of battery
6 + 1 year
Data storage
E
2
PROM/daily
Display
8- special characters
Interfaces
standard
infrared
optional
M-bus or
pulse output
6 Mounting the Temperature Sensors
For pipe systems of size
≤
DN25 the MID regulations require direct
mounting of the temperature sensors for new installations (new
construction, or retro
fi
tted heating systems).
Note:
During installation be sure that the return
fl
ow sensor (blue label)
is mounted in the „colder pipe“ and the forward
fl
ow sensor (red
label) in the „warmer pipe“.
7 Display
The calculator has a liquid crystal display with 8 digits and spe-
cial characters. The values that can be shown are divided into
three display loops. All data is retrieved using the Engelmann
pushbutton next to the display.
The standard display is the total heat energy consumed since the
meter was put into operation
.
At the start you are automatically in the main loop (1
st
level). By
pressing the key longer than 4 seconds you change to the next
display loop. Keep the key pressed until you reach the disired
information loop. By pressing the key brie
fl
y you can scan all the
information within a loop.
After one minute of non-use of the Engelmann pushbutton, the
display automatically returns to the main loop.
1.) Total heat energy
in MWh
– standard display –
3.) Heat energy at last
billing date alterna-
ting with last billing
date
1)
5.) Current power
in kW
2.) Segment test, all
segments triggered
simultaneously
4). Total volume in
m
3
7.) Current
date
6.) Current
fl
ow
in m
3
/h
8.) Error message (alternating
binary and hexadecimal
display)
1.) Maximum power
in kW
4.) Return
fl
ow
temperature in
o
C
3.)Forward
fl
ow
temperature in
o
C
5.) Temperature
difference
6.) Days in operation
since veri
fi
cation
2.) Maximum
fl
ow
in m
3
/h
8.) M-Bus address
9.) Serial number of
the heat meter
10.) Firmware/Soft-
ware version
7.) Pulse value;
pulses per liter
1.) Heat energy at previous
billing date alternating with
that billing date
1)
2. - 16.) 15 monthly energy
values alternating with the
corresponding reading
dates
1)
6.2 Installation in temperature pockets
•
Before installation the inner diameter of the
temperature pocket must be checked with a
suitable caliber (5.0; 5.2 and 6.0 mm).
•
Only temperature sensors with the
matching diameter may be installed in the
temperature pocket.
•
No adapters or reducing bushes may be
used. The protective sheath of the tempera-
ture sensor must be inserted at least 36 mm
into the pocket.
•
Remove the O-ring from the temperature
sensor and insert it carefully into the tempe-
rature pocket, ensuring that it sits properly.
•
Insert the temperature sensor into the pocket
as far as it will go (to the stop).
The temperature sensor must now be sitting
on the bottom of the temperature pocket.
•
Tighten the screw nut on the temperature
sensor into the pocket as tight as
possible.
6.1 Direct mounting (ball valve and T-piece
)
•
Remove the blind plug/old temperature
sensor and gasket/old O-ring. Clean
connection surfaces.
•
Slide the O-ring off the temperature sensor
and insert it to the bottom of the threaded
opening of the ball valve or the T-piece.
•
Set the required mounting depth of the tip
of the temperature sensor by tightening the
cross-head screw in the correct beading on
the sheath.
•
The temperature sensor must not touch the
bottom of the ball valve or T-piece.
•
Insert the temperature sensor into the ball
valve or the T-piece and tighten the screw
nut to the stop.