Description
Dwyer SERIES F6 & F7 LEVEL SWITCHES – HORIZONTAL/SPECIALTY
Low Cost, Hermetically Sealed Contacts
The Series F6 & F7 Horizontal Float Level Switches are designed to mount through the walls of tanks and other vessels. Internally mounted models F6-HPS-11, F6-MHS and F7-SS6 are secured to the wall of the tank or vessel from the inside while model F6-HPS-21 is mounted from the outside (externally). Models F7-HSS and F6-MHS2 can be installed internally or externally.
The Series F6 & F7 Specialty Float Level Switches are designed for unique applications. Model F7-SS5B/BNC can be used with viscous liquids or liquids with suspended metal particles. Use model F7-LL for low level detection (≥ 5/8″). The non-intrusive bottle style F7-EB mounts completely outside the tank at the actuation level. Suspend model F7-WBB in stand pipes or sumps for leak detection or drop into wells for ground-water monitoring.
Hermetically sealed reed switches are actuated by magnets permanently bonded inside the float arm and can be easily adapted to open or close a circuit on rising or falling levels
Applications:
- Water level monitoring
- Oil level control
- Chemical level indication
- Sumps
- Stand pipes
- Tank level control
Specifications:
- SERIES F6
- Service: Compatible liquids
- Wetted Materials: See model table on catalog page
- Temperature Limit: F6-SS & F6-MHS: -4 to 257°F (-20 to 125°C). F6-HPS-11, 21, 31: 14 to 176°F (-10 to 80°C)
- Pressure Limit: F6-SS & F6-MHS: 218 psi (15 bar). F6-HPS-11, 21, 31: 116 psi (8 bar)
- Enclosure Rating: General purpose
- Switch Type: SPST Hermetically sealed reed switch, reversible for NO or NC
- Electrical Rating: 20 VA: 0.17 A @ 120 VAC, 0.08 A @ 240 VAC
- Electrical Connections: 22 AWG, 11.811″ (300mm) long
- Process Connection: F6-SS: 1/8″ NPT, HPS-21, 31: 1/2″ NPT, F6-MHS, F6-HPS-11: M16*2
- Mounting Orientation: F6-SS: vertical ±20°, F6-MHS/HPS: horizontal with index arrow pointing up or down
- Specific Gravity: F6-SS: 0.65, F6-MHS: 0.85, F6-HPS-11, 21, 31: 0.6
- SERIES F7
- Weight: F6-HPS-11, 21: 1.23 oz (38 g), F6-MHS-31: 1.41 oz (40 g), F6-MHS: 3.35 oz (95 g), F6-SS: 1.59 oz (45 g)
- Agency Approvals: CE
- Electrical Rating (Maximum): F7-SB, -SS2 AC: 25 VA, 1.0A, 200 V DC: 10 W, 1.0 A, 200 V F7-PP, -BT, -HSS, -MHS AC: 25 VA, 1.0 A, 200 V DC: 10 W, 1.0 A, 200 V F7-HPS-1, -2 AC: 25 VA, 1.0 A, 200 V DC: 10 W, 1.0 A, 200 V (F7-HSS is rated explosion-proof for Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III)
- Mounting Connection: 1/8″ NPTM (all vertical mount), 1/2″ NPTM (F7-HPS-2, F7-HSS), M16 x 2 (F7-HPS-1), 1/2″ x 13 thread (F7-MHS)
- Wire Leads: 22 AWG x 18″ (46 cm), vertical mount models; 22 AWG x 39″ (1 m), models F7-HPS-1, -2; 22 AWG x 24″ (61 cm), models F7-HSS, -MHS
- Magnet: Alnico (F7-SB, -PP, -BT, -HPS), ceramic (F7-SS2, -HSS, -MHS)
- Weight: 2 oz. (58 g), F7-SB; 1.2 oz. (34g), F7-SS2; 0.8 oz. (23 g), F7- PP; 0.7 oz.. (20 g), F7-BT; 1.5 oz. (43 g), F7-HPS-1; 2 oz. (57 g), F7- HPS-2 and -MHS; 3 oz. (94 g), F7-HSS.
Models:
- F6-HPS-11 Horizontal mount level switch, polypropylene float and stem, temperature limit 176°F (80°C), pressure limit 116 psig (8 bar), 0.6 min. specific gravity, electrical rating 20 VA: 0.08A @ 240 VAC, 22 AWG 11.8″ (30 cm) wire leads, M16 x 2 int mounting, weight 1.23 oz (38 g).
- F6-HPS-31 Horizontal mount level switch, polypropylene float and stem, temperature limit 176°F (80°C), pressure limit 116 psig (8 bar), 0.6 min. specific gravity, electrical rating 20 VA: 0.08A @ 240 VAC, 22 AWG 11.8″ (30 cm) wire leads, 1/2″ NPT (int/ext) mounting, weight 1.41 oz (40 g).
- F6-MHS Horizontal mount level switch, 304SS float and stem, temperature limit 257°F (125°C), pressure limit 218 psig (15 bar), 0.85 min. specific gravity, electrical rating 20 VA: 0.08A @ 240 VAC, 22 AWG 11.8″ (30 cm) wire leads, M16 x 2 int mounting, weight 3.35 oz (95 g).
- F6-MHS2 Horizontal mount level switch, 304SS float and stem, temperature limit 257°F (125°C), pressure limit 363 psig (25 bar), 0.85 min. specific gravity, electrical rating 70 VA: 0.7A @ 250 VAC, 22 AWG 11.8″ (30 cm) wire leads, 1/2″ NPT, weight 4.8 oz (136 g).
- F7-EBNC Non-instrusive bottle type level switch, NC, brass float, 316SS stem, brass housing, temperature limit 300°F (149°C), pressure limit 500 psig (34 bar), 0.75 min. specific gravity, electrical rating 20 VA: 0.08A @ 240 VAC, 18 AWG 24″ (61 cm) wire leads, 3/4″ female NPT mounting, weight 5 lb 5 oz (2.4 kg).
- F7-HSS Horizontal mount level switch, 316SS float and stem, temperature limit 392°F (200°C), pressure limit 300 psig (20.7 bar), 0.60 min. specific gravity, electrical rating 30 VA: 0.14A @ 220 VAC, 22 AWG 24″ (61 cm) wire leads, 1/2″ NPT (int/ext) mounting, weight 3 oz (94 g).
- F7-LL Vertical level switch, polysulfone float, Buna-N stem, temperature limit 180°F (82°C), pressure limit 50 psig (3 bar), electrical rating 20 VA: 0.08A @ 240 VAC, 22 AWG 72″ (182 cm) wire leads, 1/8″ male NPT mounting, weight 2 oz (58 g).
- F7-SS6 Bent stem level switch, 316SS float and stem, temperature limit 300°F (149°C), pressure limit 100 psig (7 bar), 0.70 min. specific gravity, electrical rating 20 VA: 0.08A @ 220 VAC N.O. operation, 22 AWG 24″ (61 cm) wire leads, 3/8″-24 UNF-2A mounting, weight 2 oz (58 g).
- F7-SS6B Bent stem level switch, 316SS float and stem, temperature limit 300°F (149°C), pressure limit 100 psig (7 bar), 0.70 min. specific gravity, electrical rating 20 VA: 0.08A @ 220 VAC N.C. operation, 22 AWG 24″ (61 cm) wire leads, 3/8″-24 UNF-2A mounting, weight 2 oz (58 g).
- F7-WBB 25′ cable, slosh shield level switch, brass float, Buna-N stem, brass housing, temperature limit 180°F (82°C), pressure limit 150 psig (10 bar), 0.45 min. specific gravity, electrical rating 20 VA: 0.08A @ 240 VAC, 22 AWG 25′ (7.6 m) wire leads, weight 10.8 oz (310 g).
