Sensus PolluStat E Installation And Operating Instructions Manual - page 11
Heating / Cooling meter PolluStat E
Installation and operating instructions
M H 4110 INT PolluStat E, page 11
6. Functional test, sealing
Having opened the shut-off valves, test the
installed units for leaks. For checking purposes
the current values of flow rate, heating resp.
cooling power as well as temperatures of warmer
and colder line can be called to the display
according to chapter 5.1. In order to protect the
meter against tampering, the delivered selflock
seals have to be attached to the following points:
unions of the flow sensor
insertion points of the temperature sensors
lid of the integrator (pull the sealing wire
through the lug at the bottom edge)
7. Possible error situations
PolluStat E is equipped with an automatic self-
checking function. As soon as an error is
detected, the display shows a four-digit error code
„Err XYZW“
,which can be decoded as follows:
X:
Checking the temperature sensors
Y:
Checking the integrator
Z:
Error
statistics
W:
Checking the ultrasonic measuring circuit
The following error message can appear, if – due
to insufficient venting of the pipe – there is air in
the flow sensor disturbing the ultrasonic signals.
Err 00 x 2
Here „x“ stands for a figure from 1 to 9 or for a
capital from A to F.
This error message can also appear on the
display of new heat meters, when – due to logistic
reasons – the flow sensor has not been filled with
water. This is no reason for a complaint because
such an error message will vanish after correct
installation of the meter.
If nominal flow rate is exceeded by more than
130 %, following error message is displayed:
Err xxx4
After reducing the flow, this message will
disappear.
Codes
(extract)
Decoding
Err 1010
Temperature sensors changed by
mistake resp. temperature in
colder pipe exceeds temperature
in warmer pipe
Err 2010 or 3010
One or both temperature sensors
is/are short-circuited
Err 4010 or 5010
Cable failure of temperature in
colder line sensor resp. sensor is
not connected
Err 6010 or 7010
Temperature sensor in warmer
line is short-circuited and cable
failure of temperature sensor in
colder line
Err 8010 or 9010
Cable failure of temperature
sensor in warmer line resp.
sensor is not connected
Err A010 or B010
Temperature sensor in colder line
is short-circuited and cable failure
of temperature sensor in warmer
line
Err C010 or D010
Cable failure of temperature
sensors in warmer and colder line
resp. sensors are not connected
Err 0002
Air in flow sensor
Error situation „Err 1010“ is usually caused by
temporary system conditions when temperature in
the warmer line drops by 3 K or more below the
temperature in the colder line.
In case of all other errors situations please inform
our service department.
8. Standard interfaces and optional
modules
PolluStat E is equipped with following interfaces
and can have the following optional equipments:
8.1 Optical interface
All meters are equipped with a standard optical
data interface. Via optical data coupler (e.g. order
number 04410230 for RS 232 connection or order
number 184023 for USB connection) settings can
be changed with the service software MiniCom, or
the meter can be read out via the readout system
DOKOM Mobile. The data interface is activated
for one hour by a short keystroke. Every data
communication causes this period of time starts
again, so that e.g. a logger readout at 15-minute
or hourly intervals is possible over a long period of
time.
8.2 Mini-Bus interface
The Mini-Bus interface is standard equipment and
is available at terminals 51 (signal) and 52 (earth).
It is suitable to connect the meter with an
inductive readout point (MiniPad) or other reading
and transmitting instruments (e.g. radio
transponders). The total length of the two-wire
cable between the meter and the readout point
must not exceed 50 m. The communication