SPECIFICATIONS
Input Voltage: +5 VDC (±5%)
Power Dissipation: ½w max
Output: open collector, solid
state, able to sink up to 100 MA
to ground, from DC sources up to
30V
Sensing range: 50 to 1500 F.P.M.
Sensing Tolerance: +10°C to
+60°C see ambient temperature
compensation curve
Sensitivity: ±25 F.P.M. from actual
setting
Hysteresis: Series SAF1005 (Stan-
dard Model) is typically 10% of
the setting
IMPROVED AMBIENT TEMPERATURE
COMPENSATION
Warren G-V design criteria for the SAF
Solid-State Airflow Sensor incorporates
ambient temperature compensation
techniques which provide close operating
point tolerances over the ambient range
of +10° to +60°C. The typical operating
point versus ambient temperature curve
for 250 FPM is illustrated. Curves for
other settings are available.
THE SAF SERIES
The Standard Series/SAF1005 - indicates an “alarm condi-
tion” on low or no airflow by turning output transistor “on”;
output is similar to a closed mechanical contact between
output and ground when in alarm condition. A round ver-
sion, SAF1006 without a flange is available for less board
space utilization.
The Fail Safe Series/SAF1025 - an alternative to above-
described series, a device failure indicates an “alarm condi-
tion” by turning the output “off”; similar to open contacts in
alarm condition. It will operate with a wider hysteresis.
The Hermetically Sealed Series - withstands all board
washing methods; more suitable for applications with hostile
environments. Sealed versions of all the above units are
available.
Output on
Alarm Condition
Driving
A Load
(Relay, Lamp)
ON
OFF
Logic
Interface
(Pull-up
Resistor)
ON
OFF
SAF Model Options
Flanged
SAF1005
SAF1025
Round
Base
SAF1006
SAF1026
Flanged
SAF1007
SAF1027
Round
Base
SAF1008
SAF1028
Dust Proof
Hermetically Sealed
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