3-11
Brooks
®
Digital MFC's & MFM's
Section 3 Operation
Installation and Operation Manual
X-TMF-SLA5800-Series-RevB-MFC-eng
Part Number: 541B187AAG
January, 2017
3-8-1
Setpoint Ramping
The following Setpoint Ramping Options are provided:
Off
– The device responds immediately to Setpoint changes.
Time –
The device will Ramp Flow from the old Setpoint to the new
Setpoint in the time specified by the user in seconds.
3-8-2
Low Setpoint Command Cutoff
When the Setpoint is derived from analog input, the Low Setpoint
Command Cutoff parameter sets the minimum valid value of Setpoint. If
the Setpoint value reported by the analog input is below the Low Setpoint
Command Cutoff parameter value, then the Setpoint will be set to zero.
3-8-3
Low Flow Output Cutoff
Whenever the measured flow is below the Low Flow Output Cutoff
parameter, the Flow Output will be set to zero.
3-8-4
Adaptive Control
Adaptive Valve Control is a means of dynamically adjusting valve offset and
span in response to changing process conditions. Options for Adaptive
Control are: On/Off, Adjust Offset Only, Adjust Offset and Span.
3-8-5
Flow Totalizer
A Flow Totalizer will be provided and maintained in Non-Volatile Memory.
The update rate of the totalizer in Non-Volatile Memory will be 5 seconds.
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PC-based Support Tools
Brooks Instrument offers a variety of PC-based process control and service
tools to meet the needs of our customers. Smart Interface may be used with
any unit supporting RS485 in a multidrop configuration, thus allowing users to
control and monitor their Brooks devices. The Brooks Expert Support Tool
(Analog I/O versions only) may be used to monitor, diagnose, tune and
calibrate Brooks devices. The Brooks Expert Support Tool interfaces with
Brooks products via a special diagnostics port.
