Local regulations may restrict the use of this product to below the conditions quoted.
In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2017
EMM Issue 5
The B850 is a flexible and easy to use Boiler House Energy Monitor that accurately calculates the efficiency of the boiler based on
measured inputs from fuel, feedwater, steam output, condensate return and blowdown.
The B850 is a boiler house energy monitoring solution that has been designed for organisations operating boilers on an existing
installed base and for boiler OEM's where customers specify a requirement for energy monitoring. The B850 calculates a boiler's 'real
time' energy transfer efficiency from fuel to steam. It will also measure for energy losses from the boiler due to blowdown applications.
Being fully compatible with a wide range of Spirax Sarco flowmetering products the B850 is the heart of a fully integrated system that
will provide Operating Managers in an increasing range of industries detailed information to be able to review boiler efficiency against
past performance.
The unit is available for either wall or panel mounting. The B850-W-2 and B850-W-2-UL are wall mounted versions are mains powered
(100 to 250 Vac), while the B850-P-2 panel mounting version is intended for direct connection to a Low Voltage power supply typically
found inside PLC panels, i.e. 24 Vdc.
The B850 is supplied with a default configuration that makes configuration easy, either off-line with the free PC based software wizard
provided with each product. When the configuration has been completed, it can be saved to file or to the free USB memory stick
provided, from where it can be plugged in and up-loaded directly into the unit. Alternatively, commissioning can be carried out via a
hierarchical menu structure through the front panel. Full commissioning details are included in the Installation and Maintenance
Instructions (IMI) supplied with the unit.
Spirax Sarco offers a complete range of flowmeters for the measurement of: Gas, Feedwater, Steam and make-up water.
For existing installed flowmeters the B850 can accept 4-20 mA, Pulse and RTD inputs.
The B850 is compatible with a large number of interfaces and protocols including: RS-485, Modbus RTU, BACnet MSTP,
RJ-45 Ethernet, Modbus TCP / IP, BACnet IP, USB and Hosted http web.
A GSM module can be connected to the RS-485 port which enables transfer of information about failures, alarms and measurement
values in the form of SMS text messages.
wall mounted version
panel mounted version
For selection of the optimum
unit for your application, please
visit page 3 'Available options'
before placing an order.
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