TSI Instruments FHC50 User Manual

28 Part Two
SETPOINTS MENU
MENU ITEM
SOFTWARE
NAME
ITEM DESCRIPTION
ITEM RANGE
DEFAULT
VALUE
MAXIMUM FLOW
SETPOINT
FHC50 Only
MAX FLOW
The MAX FLOW item sets the maximum flow set point when the
NORMAL CONTROL MODE is set to VelSidewall, VelSashPos
or VelSide+Sash. When the fume hood exhaust reaches the
maximum flow set point, as the fume hood sash is raised, the
controller will modulate the hood exhaust damper to maintain
this maximum flow.
OFF, 0 to 10,000 cfm
OFF
WARNING: The Model FHC50 may not maintain the fume
hoods average face velocity at the SETPOINT item
value when a MAX FLOW has been programmed.
The average face velocity may fall below the
SETPOINT item value, resulting in a LOW ALARM
condition.
NOTE: The MAX FLOW set point must be 50 cfm greater than
the MIN FLOW set point.
LOW VELOCITY
ALARM SETPOINT
FHM10 and FHC50
LOW VEL
ALARM
The LOW VEL ALARM item sets the face velocity low alarm set
point during Normal mode. A low alarm condition is defined as
when the face velocity is less than the low alarm set point during
Normal mode.
NOTE: The LOW VEL ALARM must be at least 20 ft/min less
than the SETPOINT.
OFF, 5 to 980 ft/min
OFF
HIGH VELOCITY
ALARM SETPOINT
FHM10 and FHC50
HIGH VEL
ALARM
The HIGH VEL ALARM item sets the face velocity high alarm
set point during Normal mode. A high alarm condition is defined
as when the face velocity exceeds the high alarm set point
during Normal mode.
NOTE: The HIGH VEL ALARM must be at least 20 ft/min
greater than the SETPOINT.
OFF, 80 to
1000 ft/min
OFF
LOW FLOW
ALARM SETPOINT
FHM10 and FHC50
LO FLOW
ALARM
The LO FLOW ALARM item sets the low flow alarm set point
during Normal mode. A low flow alarm condition is defined as
when the exhaust flow is less than the low flow alarm set point
during Normal mode.
NOTE: The LO FLOW ALARM must be at least 50 cfm less
than the SETPOINT.
OFF, 0 to 10000 cfm
OFF

TSI Instruments FHC50 Specifications

General

Brand	TSI Instruments
Model	FHC50
Category	Controller
Language	English