UH50 Ultrasound Heatmeter
Configuration Instructions
UH 106-101c
Page 6 / 13
Parameter setting for standard pulses
Output mode
Output value
CE
(count energy)
Pulses for quantity of heat
Chan.1
C2
(count tariff 2)
Pulses for tariff register 2
CV
(count volume)
Pulses for volume
CT
(count tariff 1)
Pulses for tariff register 1
Channel 2
RI
(ready indication)
Pulses for the operating states
"Ready / Fault"
Parameter setting for “fast pulses”
Channel 1
Channel 2
CV
(count volume)
CE
(count energy)
-
(no function)
CV
(count volume)
CV
(count volume)
-
(no function)
CV
(count volume)
CE / CV *)
(count energy / count volume)
-
(no function)
*) automatic output of the higher pulse rate
Labeling pulse
module
Type
open collector
Voltage
maximal 30 V =
Current
maximal 30 mA
Dielectric strength
500 V
rms
against ground
Classification
OB (per EN 1434-2)
Voltage drop
approx. 1.3 V at 20 mA
Classification
OC (per EN 1434-2)
Voltage drop
approx. 0.3 V at 0.1 mA
Output connection
(standard version):
A special version of the pulse module is available
with an Opto-MOS output.
Advantages: low voltage drop and polarized
(bipolar).
Standard pulses
Standard pulse significances
kWh *)
MJ *)
m³
10
15
25
40
2,5 3,5
60
Nom. flowrate in m³/h
10 MJ
0,6
1 kWh
10 kWh
1 m³
0,1 m³
100 MJ
1 MJ
*) depending on the unit for heat display
Pulses for quantity of heat, volume, tariff register
Period duration
> 200 ms
Pulse duration
100 ms conducting
Pulses for operating states:
“Ready”
pulsed “conducting”, i.e.
100 … 200
µ
s pulse duration,
500 ms period
“Fault” constantly
“non-conducting”
Fast pulses
Note: In battery operation, a D cell is required!
For applications, such actuating controllers or as
flowrate transmitters, higher pulse rates are
required. The parameters required for this (pulse
significance, pulse duration), can be configured with
the PappaWin software.
The maximum pulse frequency is 33 Hz.
The following can be set:
•
Pulse type: “linear” or “scaled” pulses *)
•
Pulse output: energy or volume
•
Pulse duration, if only 1 pulse module is fitted:
from 2 ms to 100 ms in steps of 1 ms;
Pulse duration, if 2 pulse modules are fitted:
von 5 ms to 100 ms in steps of 5 ms
The pulses can be received and evaluated with a
suitable device. The settings must be made in
accordance with the information on the data sheet of
the controller.
*) Linear pulses are output proportionally to the
measured value. In the case of scaled pulses, the
number of pulses at the upper and lower end of the
range can be defined. In this case, the pulse
receiving device can detect, for example, a
connection error.
Linear pulses
Scaled pulses (example)
CL module
CL module
RTX+,
RTX-
The CL module can be used to set up a point-to-
point link enabling the heat meter to be read
remotely, for example, at the front door.
Display in LCD
CL
(current loop)
Standard
per EN 1434-3
Type
passive current loop
Baudrate
2400 Baud, fest
Isolation galvanic
Polarity yes
Voltage
30 V maximal
Current
30 mA maximum
Voltage drop
< 2 V at 20 mA
Literature TKB
3415