Datasheet

Data Sheet SONOMETER
TM
1000 – Ultrasonic heat meter
Design and function,
continued
Log Memory
The log memory is used to store consumption
values. The storage frequency can be selected
from various storage intervals (1, 2, 3, 4, 5, 6, 10,
12, 15, 20, 30, 60 minutes or the default setting of
24 hours).
The data saved in the log memory can be used
for the following analyses:
- Reading the calculator on a certain day.
Example: If the day for reading is 01.10,
the calculator reading is displayed for the
period from 01.10 of the previous year to
30.09 of the current year.
- Comparison of the last consumption period
with the preceding period
Extract of possible log memory settings
Storage interval Values Number of data records Recording period
5 minutes Error status, overload time temperature,
overload time flow rate, supply temperature,
return temperature, date and time, energy,
tariff energy 1, tariff energy 2, tariff definition 1,
tariff definition 2, volume, error day counter
440 36.6 hours
15 minutes 440 110 hours
1 hour 440 18.3 days
24 hours 440 440 days
Max. Values
The calculator creates maximum values for
power and flow rate based on consumption time,
which are stored in the EEPROM. The integration
intervals are adjustable to 6, 15, 30 or 60 minutes
and 24 h. Default setting is 60 minutes.
Tariff Function
The calculator offers two optional tariff
memories for monitoring plant load states for
limit tariffs. Extensive tariff conditions make it
possible to adapt the heat meter individually to
the required customer-specific applications.
The following limit types are possible:
(This example applies to the display with 3
decimal places)
Type LIMIT LIMIT resolution
ΔT 1 ... 190 °C 1 °C
T
R
1 ... 190 °C 1 °C
P 1 ... 255 kW 1 kW
Q 100 ... 25 500 l/h 100 l/h
According to above table the energy or the time
(in hours) how long the tariff condition is fulfilled
will be stored in the tariff memories.
Display Control
The readings are displayed on the calculator by a
7-digit LCD with units and symbols.
Loop Structure
The SONOMETER™1000 display has six loops.
Some display windows consist of two (to
maximum seven) displays that are shown
alternately at 4-second intervals.
Some pictures in loops or a complete loop can
be deactivated separately.
For quick visual guidance, the loops in the
display are numbered from 1 to 6.
The main loop with the current data, e.g. for
energy, volume and flow rate is programmed as
default setting.
6
DEN -SMT/PL
VD.SH.B4.02 © Danfoss 04/2010