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2018-02-13
Climatix HERU® 400-2400
Modbus pressure sensor for pressure regulation
10.
Modbus pressure sensor for pressure
regulation
For versions
≥
V2.4X, it is possible to use pressure sensors that communicate via
Modbus.
If pressure sensors that communicate via Modbus master are used, these are
connected via the Modbus RTU/RS485 connection. It will then no longer be possible to
use the built-in Modbus RTU/slave for BMS, but you can still use Modbus TCP/IP to
connect to BMS.
If the
property’s
BMS requires Modbus RTU, you can use an external communication
module for Modbus RTU. See chap. 12
The pressure sensor’s designations and measuring ranges
This model does not need any extra expansion module, and therefore does not require
multiple I/Os. The signal for each pressure transmitter goes via data bus
communication.
Pressure sensors used:
•
QBM68.xxxx
These pressure sensors are available with pressure ranges 1250 Pa or 2500 Pa.
QBM68 is also available for double sensors in a unit (housing), with the 1st sensor
marked P1 and the 2nd sensor marked P2.
The following variants are possible:
Designation
P1 pressure range
P2 pressure range
Modbus/
0-10 V signal
QBM68.1200
0-1250 Pa
---
Yes/Yes
QBM68.1212
0-1250 Pa
0-1250 Pa
Yes/Yes
QBM68.2500
0-2500 Pa
---
Yes/Yes
QBM68.2512
0-2500 Pa
0-1250 Pa
Yes/Yes
QBM68.2525
0-2500 Pa
0-2500 Pa
Yes/Yes
Pressure sensor QBM68.xxx
Settings and connections
Important!
GP1/GP2
Mechanical design
Summary of Contents for HERU 400-2400 S
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Page 14: ...14 120 Climatix HERU 400 2400 2018 02 13 Scope of assembly installation instructions...
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Page 97: ...97 120 2018 02 13 Climatix HERU 400 2400 Miscellaneous Menu structure Menu overview...
Page 98: ...98 120 Climatix HERU 400 2400 2018 02 13 Miscellaneous Start page Main index Unit...
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Page 118: ...118 120 2017 11 03 Climatix HERU 400 2400 Troubleshooting...
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