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EXAMPLE
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FM
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437
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2
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3510
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FM-437-2-3510 Immersion Temperature Control, copper well, adjustable deadband, automatic reset, SPST mercury switch, adjustable range 80-240°F (27-115°C).
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CONSTRUCTION
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FM
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General purpose enclosure, NEMA-1 (standard)
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UL
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FM
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CSA
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WELL MATERIALS
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437
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Copper well, maximum pressure 200 psig (14 bar) at 300°F (149°C) (standard)
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UL
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FM
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CSA
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437SS
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Type 304 stainless steel well, maximum pressure 900 psig (62 bar) at 300°F (149°C)
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UL
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FM
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CSA
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CIRCUIT (SWITCHING) OPTIONS
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2
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SPST mercury switch, opens on temperature increase, see Electrical Rating below.
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UL
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FM
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CSA
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3
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SPST mercury switch, closes on temperature increase, see Electrical Rating below.
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UL
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FM
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CSA
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26
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SPST mercury switch, closes on temperature increase, see Electrical Rating below.
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FM
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36
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SPST mercury switch, opens on temperature increase, see Electrical Rating below.
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FM
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CSA
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153
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SPDT mercury switch, see Electrical Rating below.
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UL
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FM
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CSA
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( )
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Other circuits available, consult factory.
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ADJUSTABLE TEMPERATURE RANGES & INSERTION LENGTHS
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A
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B
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DEADBAND
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MIN
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MAX
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3515
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Adjustable range 40-200°F (5-93°C)
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2-7/8" insertion length (73 mm)
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2-3/8" (60 mm)
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15°F (8.4°C)
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160°F (89°C)
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UL
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FM
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CSA
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3516
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Adjustable range 40-200°F (5-93°C)
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4-1/2" insertion length (114 mm)
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3/4" (19 mm)
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15°F (8.4°C)
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160°F (89°C)
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UL
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FM
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CSA
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3510
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Adjustable range 80-240°F (27-115°C)
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2-7/8" insertion length (73 mm)
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2-3/8" (60 mm)
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15°F (8.4°C)
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160°F (89°C)
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UL
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FM
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CSA
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3511
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Adjustable range 80-240°F (27-115°C)
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4-1/2" insertion length (114 mm)
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3/4" (19 mm)
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15°F (8.4°C)
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160°F (89°C)
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UL
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FM
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CSA
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3528
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Adjustable range 160-300°F (71-149°C)
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2-7/8" insertion length (73 mm)
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2-3/8" (60 mm)
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18°F (10°C)
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140°F (78°C)
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UL
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FM
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CSA
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3529
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Adjustable range 160-300°F (71-149°C)
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4-1/2" insertion length (114 mm)
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3/4" (19 mm)
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18°F (10°C)
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140°F (78°C)
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UL
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FM
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CSA
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