Series F7-MM Miniature Multi-Station Level Switch
Custom, Lightweight, Low Cost, 316 SS or Buna-N Floats
The SERIES F7-MM Miniature Multi-Station Level Switches provides a customized level switch to meet application requirements in a miniature size. Control up to five different level points across a maximum length of 48" (121 cm). Stems and mounting fixtures are available in 316 stainless steel or brass.
- Water level monitoring
- Oil level control
- Tank level control
- Diesel level monitoring
Models & Ordering
- Compatible liquids.
- Wetted Materials:
- Stem, connection, and float.
- Temperature Limits:
- F1 and F2: Water, 180°F (82.2°C); Oil, -40 to 250°F (-40 to 121.1°C). All other floats: -40 to 300°F (-40 to 148.9°C).
- Electrical Connection:
- 24" (61 cm) free leads #22 AWG, TFE jacketed.
- Mounting Orientation:
- Vertical ±30°.
- Customized miniature level indication in a compact, lightweight design ideal for tanks less than 4' (1.2 m) deep
- Rugged construction with multiple options yielding exceptional versatility
- Miniature custom level switches are sturdy, compact and lightweight yet still rugged and durable
|EXAMPLE||F7-MM||B||1||5||F1||1||01.25||03.50||09.75||12.00||15.95||20.00||12||Series F7-MMB1-5F11-01.25-03.50-09.75-12.00-15.95-20.00-12 Miniature Multi-Station Level Switch, brass with beryllium copper stops, 1/8" NPT, 5 switch points, Buna-N float, min. s.g. 0.45, max. pressure 300 psi, SPST, .17A @ 120VAC, L5 set point distance 1.25", L4 set point distance 3.5", L3 set point distance 9.75", L2 set point distance 12", L1 set point distance 15.95", 20" overall length, with 12' lead wire.|
|SERIES||F7-MM||Miniature Multi-Station Level Switch|
|STEM & CONN.
|Brass with Beryllium Copper Stops
316SS with SS Armco PH-15-7MO Stops
3/4" NPT (cannot be used with float F1, F3, F7 and F8)
1" NPT (cannot be used with float F3)
3-5/8" Flange [maximum pressure is 50 psi (3.45 bar)]
1-5/16-12UNF-2A (cannot be used with float F3)
2" NPT and 1/2 conduit (only use with float F3 and 316SST)
|1 Switch Point
2 Switch Points
3 Switch Points
4 Switch Points
5 Switch Points
|Buna-N, Min. S.G. 0.45, Max. Pressure 300 psi (20.68 bar)
Buna-N, Min. S.G. 0.60, Max. Pressure 250 psi (17.24 bar)
316SS, Min. S.G. 0.70, Max. Pressure 100 psi (6.89 bar)
316SS, Min. S.G. 0.85, Max. Pressure 150 psi (10.34 bar)
316SS, Min. S.G. 1.10, Max. Pressure 400 psi (27.58 bar)
TFE, Min. S.G. 0.65, Max. Pressure 1000 psi (68.95 bar)
316SS, Min. S.G. 0.85, Max. Pressure 275 psi (18.96 bar)
316SS, Min. S.G. 0.90, Max. Pressure 600 psi (41.37 bar)
|SPST, .17 A @ 120 VAC
SPST, .8 A @ 120 VAC
NO switch is standard. For NC place and "*" after the corresponding set point distance in the model number.
|00.00||In inches referenced from bottom of connection. Example: 01.25 would be 1.25" from the bottom of the process connection.|
|00.00||In inches referenced from bottom of connection. Example: 03.50 would be 3.5" from the bottom of the process connection.|
|00.00||In inches referenced from bottom of connection. Example: 09.75 would be 9.75" from the bottom of the process connection.|
|00.00||In inches referenced from bottom of connection. Example: 12.00 would be 12" from the bottom of the process connection.|
|00.00||In inches referenced from bottom of connection. Example: 15.95 would be 15.95" from the bottom of the process connection.|
|00.00||Maximum overall length of 48" (121 cm). Minimum length is L1 + D.|
|Common Ground Leads
Junction Box for Wire Leads, NEMA 4
Lead Wire Length (in feet)
- Why is the minimum specific gravity important on the float level switches?
- If a medium has a lower s.g. than the rated minimum for a float, the float will sink through the media and the switch will not operate.
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