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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
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TWO PART PROXIMITY SENSOR
Description :
The 300FW series two part proximity sensors are designed to work in
conjunction with Honeywell Sensor Interface Card (405FW series) or
Sensor Interface Module (ZS-00380 Series).
Designed for the extreme environments encountered in aerospace
applications, the sensor is enclosed in a rugged hermetically sealed
stainless steel housing and contains only a passive sensing element
based on the variable inductance balanced bridge principle. This is
used to detect ferrous objects passing in front of the sensing face.
The electronic conditioning circuitry is contained on the separate
Sensor Interface Card or Sensor Interface Module which may be
located in a more sheltered environment.
The combined sensor and interface system is highly reliable with
mean time between failure in excess of 500K hours when used with
the Sensor Interface Module ZS-00380 Series.
Features :
lFerrous metal sensing
lSmall size housing
lHigh reliability
Typical Applications :
lAircraft landing gear
lFlight control surfaces
lAircraft door monitoring
300FW SERIES
Dimensions in mm and inches (for reference only)
b
Nut and washer spot
welded to fix position
MEASURED WITH TARGET 15.88 MM (0.625 IN) DIAMETER X 1.57 MM (0.062 IN) THICK OF 15-5 PH STEEL
EXCEPT FOR 330FW - MEASURED WITH TARGET CARPENTER STEEL HI-MU 80 SLUG AND INSTALLED IN 303 STAINLESS STEEL HOUSING
WEIGHT 56G (2OZ) EXCLUDING LEADS EXCEPT FOR 330FW - WEIGHT 28G (1OZ)
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Specifications
Sensing Characteristics :
Sensor 5/8 - 24 UNEF Thr ead Shie lded 11.2 mm dia meter Shielde d
310FW04-10 320FW04-5 390FW04A-10 330FW04A-1 330FW04A-2
Sensing Di stance 1.78 - 3. 30 mm 1.40 - 1. 78 mm
Differential travel 0.13 - 0. 76 0. 13 - 0.25
Operating t emperat ure -77° t o +125° C -77° t o +120° C
Vibration 25 g peak, sinusoi dal
Shock MIL-STD-810B M ethod 516: 100G 1 m s
Salt spray MIL-STD-810B M ethod 509: 5% 48 hours
Sand and dust MIL-STD-810B M ethod 510: v ary ing temper ature a nd vel ocitie s: 28 hours
Humidity MIL-STD-810B M ethod 507: 95% RH @ 65° C
Chemicals Re sista nce to sky drol and ty pical airc raft fuels
Altitude Se a level to 21, 212 m
Circui t protect ion Re vers e polarity (input protect ed)
Tra nsient s, MIL-STD- 704
Electromagnetic compatibility (EMC), MIL-STD-461,462
Ordering G uide
Lis ting Desc ription Lead Length
310FW04- 10 Normal ly ope n/Normal ly cl osed, cur rent s inking 3.05 m
320FW04- 5 Normal ly ope n/Normal ly cl osed, cur rent s inking 1. 52 m
390FW04A- 10 Normal ly ope n/Normal ly cl osed, cur rent s inking 3.05 m
330FW04A- 1 Normal ly ope n/Normal ly cl osed, cur rent s inking 203 mm
