Datasheet

SONOMETER
TM
2000 – Ultrasonic heat meterData sheet
DH-SMT/PL
VD.SH.A2.02 © Danfoss 11/20078
Design and function,
continued
Pulse Input
Two pulse inputs are available. The pulse value
and the unit is configurable for heat, water, gas
or electrical energy meter by HYDRO-SET. The
input frequency range is 0 – 8 Hz with pulse-
length ≥ 10 ms. Data are separate cumulated in
different registers and are also stored on the two
accounting day’s. The cable length to pulse input
have to be less than 10 m.
Combined pulse input / output
Two pulse inputs combined with one pulse
output are available on one module. The pulse
inputs are configurable with value and the unit
by HYDRO-SET. The input frequency range is
0 – 8 Hz with pulse-length ≥ 10 ms. The pulse
output is also programmable using the HYDRO-
SET software. The “open collector” output is
supplied with external power of 3-30 VDC and
has an output frequency of ≤ 4 Hz. The pulse
width of the not potential separated pulses is
100-150 ms.
Pulse output
The calculator provides levels for two optional
external pulse outputs, which can be freely
programmed using the HYDRO-SET software.
The outputs are “open collector” with external
power supply of 3-30 V DC and an output
frequency of ≤ 4 Hz. The pulse width of the
potential separated pulses is 100-150 ms.
Possible pulse output values
- Energy (standard setting);
- Volume (standard setting);
- Tariff energy 1;
- Tariff energy 2;
- Tariff condition 1, limit switch;
- Tariff condition 2, limit switch;
- Energy error;
- Volume error;
- Volume with specific resolution (0.1 / 1.0 / 10 /
100 l) at 3 digit after volume comma;
- Energy with specific resolution (0.1 kWh) at 3
digit after volume comma;
- Leakage detection (2 channel).
Module combinations
The calculator has a group of extension modules
for communication and another group of
extension modules for additional functionality.
These modules are available first selected
within the calculator, or for retrofitting in the
field. One single function module as well as one
single communication module out of following
modules is selectable.
Function modules:
- Pulse input module, 2 inputs;
- Pulse output module, 2 outputs;
- Combined pulse module 2 inputs, 1 output.
Communication modules:
- M-Bus or
- RS 232 or
- Real Data Radio
Event memory
Events such as changes and faults are stored in a
non-volatile memory with a capacity of up to 31
entries. The following events are recorded:
- Checksum error;
- Temperature measurement error;
- Start and end of test mode.
Monthly memory
INFOCAL 6 has a history memory of 24 months.
The following values are stored in the EEPROM
on the programmed date 1 … 31 via (HYDRO-
SET) of the actual month:
- Date / Time;
- Energy;
- Tariff energy 1;
- Tariff energy 2;
- Tariff definition 1;
- Tariff definition 2;
- Pulse input 1;
- Operation hours;
- Volume;
- Error day counter;
- Maximum monthly flow rate;
- Maximum monthly power;
- Date of maximum monthly flow rate;
- Date of maximum monthly power;
- Pulse input 2.
Log memory
The log memory is used to store consumption
values. The storage frequency can be selected
from various storage intervals (5. 6, 10, 12, 15, 20,
30, 60 minutes or the default setting of 24 hours,
see following table). The data which are stored in
Log Memory could be read out with HYDRO-SET
and can be used for evaluations.
Extract of possible log memory settings
Storage
interval
Values
Number
of data
records
Recording
period
5 min. 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 h
15 min. 440 110 h
1 h 440 18.3 days
24 h 440 440 days
Accounting date
The calculator includes two independent
memories in which the accumulated energy at
two programmable dates is stored.
- Last Accounting Date;
- Last but one Accounting Date;
- Values stored:
- Energy;
- Volume;
- Tariff counter 1;
- Tariff counter 2;
- Pulse counter 1;
- Pulse counter 2;
- Date.