2-3
Brooks
®
Model SLA5840
Section 2 Installation
Installation and Operation Manual
X-PR-SLA5840-Series-RevB-RT-eng
Part Number: 541B201AAG
October, 2017
2-8 In-Line Filter (See Table 2-1)
It is recommended that an in-line filter be installed upstream from the mass
flow controller or meter to prevent the possibility of any foreign material
entering the flow sensor or control valve. The filtering element should be
replaced periodically or ultrasonically cleaned.
2-9 Electrical Interface (Reference Figures 2-1 thru 2-4)
SLA Enhanced RT's are controlled using analog signals or digital control via
RS485, DeviceNet or Profibus. For an analog unit the minimum set of
connections which must be made to the pressure controller include: power
, supply common, setpoint, setpoint common, output signal and
output signal common. All signals are supplied via the 15-pin 'D' connector.
SLA Enhanced RT's electrical interface is designed to facilitate low-loss
and quiet signal connections. Separate returns (commons) are supplied for
the analog setpoint, analog flow signal, and the power supply. These
commons are electrically connected together on the PC board.
Voltage I/O Version
• Signal Common
• Signal Output
• +13.5 to +27 Vdc Supply
• Setpoint Input
• Setpoint Common
• Supply Common
For a DeviceNet unit, 11-25 Vdc power and communication I/O are
supplied via the standard 5-pin Circular Micro-Connector.
For a Profibus unit, the power and analog signals are via the 15-pin 'D'
connector. The Profibus communication signals are via the auxiliary 9-pin
'D' connector.
Refer to Figure 1-1 for analog/RS485 pin connections, Figure 1-2 for
Profibus pin connections and Figure 1-3 for DeviceNet pin connections.
Refer to Figures 2-2, 2-3 and 2-4 for typical electrical I/O configurations.
Models
Maximum Flow Rate
Recommended Filter
SLA5840
100 ccm
2 micron
SLA5840
500 ccm
5 micron
SLA5840
1 to 5 lpm
10 micron
SLA5840
10 to 100 lpm
40 micron
Table 2-1 Recommended Filter Size
