Level Monitoring Products
M - Magnetic Level Switches
Wetted Materials
Stainless Steel, Brass, PVC, PP, NBR, PVDF
Fittings
G ⅛, G ⅜, G ½ ,G 1, G 1½ G 2, 1" NPT, 1½" NPT, 2" NPT, PG 7 Male, DIN & ANSI Flanges
Connection Box
Aluminum, Polyamide, Polypropylene, ABS
Max. Pressure
1450 PSIG
Max. Temperature
302 °F
NAB - Polypropylene Float Level Switch
Wetted Parts
Polypropylene (PP), Neoprene®
Max. Temperature
185 °F (85 °C)
Max. Pressure
50 PSIG (3.5 BAR)
Max. Switch Rating
250 VAC 50/60 Hz, 20A Resistive/8A Inductive Load
NCB - Magnetic Float Switches with NBR Float
Fittings
1/8" NPT, 1/4" NPT, PF 1/8" (3/8"...24 UNF)
Wetted Materials
NBR, Brass, 316 St. Steel
Max. Pressure
150 PSIG
Max. Temperature
230°F (in Oil), 180°F (in Water)
Specific Gravity
> 0.55 S.G.
NCG - Large Multipoint Magnetic Float Level Switches
Maximum Length
96"
Fittings
1/2"...2" NPT, 3" ANSI Flange, 1/2" Tube End
Stem/Fittings
316 SS or PVC
Floats
NBR, SS or PP
Electrical Ratings
100 VA SPST (Standard), 20 VA SPDT (Optional)
NCM - Miniature Multipoint Float Level Switch
Maximum Length
48"
Fittings
1/8"...1" NPT, 5/16" Tube End
Stem/Fittings
316 SS or Brass
Floats
316 SS, NBR or Polypropylene
Electrical Ratings
SPST 100 VA Standard
NCP - Magnetic Float Switches for Liquids
Max. Pressure
100 PSIG
Max. Temperature
225 °F
Fittings
1/8" NPT or PF ¼
Minimum SG
0.81
NCS - Magnetic Float Switches for Liquids
Contact
Reed Switch
Fittings
1/8", 1/4" NPT
Wetted Material
SS
Max. Pressure
400 PSIG
Max. Temperature
300 °F
Liquid Density
> 0.65 SG
NCW - Capacitive Level Switch
Probe Length Range
11" to 157"
Max. Pressure
435 PSIG (30 Bar)
Max. Media Temperature
Up to 392 °F (200 °C)
Input Power
18...36 VDC, 24 VAC, 110 VAC, 230 VAC, 50/60 Hz
Output
Relay Contact
NDT - Static Pressure Level Switch
Wetted Parts Exposed to Liquid
User-Supplied 1¼" OD Tube
Wetted Parts Exposed to Air Pocket
NBR, Polyamide
Media
Any Compatible, Free-Flowing Liquid
Switchpoint
4" Above the Bottom of User-Supplied Tube
Switch Rating
SPDT, 250 VAC/8A max.
NE - Conductive Level Switch
Contacts
Up To 6 Contacts via External Relays
Fittings
½" NPT, 1½" NPT Male
Material
SS, Hastelloy®, Titanium w/ Polyolefin or PTFE Cladding
Max. Pressure
440 PSIG
Max. Temperature
Up To 300 °F w/PTFE Cladding
NE-5048 Electrode Relay for Conductive Level Switches
Power Supply
24-240 VAC/DC
Power Consumption
Max. 2 VA / 1.5 W
Response Time
400 ms
Output
1 Potential-Free SPDT Contact
Ambient Temperature
-4...131 °F
Mounting
Quick Mount for DIN Rail 60715
NEC - Heavy-Duty Float Level Switch
Wetted Parts
PP Float w/PEC-Clad Cable or Hypalon®-clad PP Float w/PEC-Clad Cable
Max. Temperature
185 °F (NEC), 194 °F (NEC-HY)
Max. Pressure
50 PSIG (NEC), 58 PSIG (NEC-HY)
Switch
SPDT Mechanical (Mercury-Free)
Max. Switch Ratings
250 VAC 50/60 Hz, 16A Resistive Load/6A Inductive
NEH - Cable-Suspended Conductive Level Switch
Contacts
Up To 6 Contacts via External Relays
Fittings
½" NPT, 1½" NPT Male
Material
SS, Hastelloy®, Titanium, PTFE
Max. Pressure
90 PSIG
Max. Temperature
Up To 300°F w/PTFE Cable
NEK - Compact Conductive Level Switch
Compatible Media
For Conductive Liquids Only
Body Material
Polypropylene or PPS
Sensing Electrode Material
316-Ti SS
Fitting
3/4" NPT
Max. Pressure
Polypropylene = 87 PSIG, PPS = 290 PSIG
Max. Temperature
Polypropylene = 140 °F, PPS = 185 °F
Switching Output
PNP or NPN Open Collector or SPDT Relay
Protection Class
IP68
NGS - Heavy Duty Level Switch
Contact
1 SPDT Mechanical Switch
Fittings
Square Flange, 2" NPT
Material
316 SS
Max. Pressure
360 PSIG
Max.Temperature
480 °F
Liquid Density
>0.7 g/ml
NIR-9 - Rotating Vane Level Switch for Bulk Media
Fittings
1"...1½" NPT, 110 mm and 200 mm Flange
Max. Media Temperature
392 ºF (NIR-92)
Operating Pressure Range
-7.25...7.25 PSIG
Min. Bulk Media Density
2.37 Lb/ft3
Sensitivity
Adjustable, 3 Settings
Housing
Polyester Coated Aluminum
Switch
SPDT Mechanical
Power Supply
24 VDC, 110 VAC
NK - Ultrasonic Level Switch
Repeatability
2 mm or Better
Input Voltage
5...30 VDC
Output
SPDT Relay
Fitting
3/4" NPT
Max. Temperature
176 °F (80 °C) Standard, 212 °F (100 °C) HT Version
NKP - Side-Mounted Level Switch
Fittings
½" NPT or Bulkhead
Body/Float Material
Polypropylene or PVDF
Max. Pressure
145 PSI
Max. Media Temperature
175 °F (PP), 212 °F (PVDF)
Minimum S.G.
0.6 (PP), 0.95 (PVDF)
Contact
Hermetically-Sealed Reed Switch
Electrical Connection
2-Wire Jacketed Cable, 36" Length
NLP - Hydrostatic Pressure Level Switch
Fittings
1" NPT, G1
Max. Process Temp.
158 °F
Switching Range
Up to 16 ft
Switch Rating
250 VAC 1A
NMF - Level Switch for Dry Bulk Media
Contact
1 Mechanical Switch
Fitting
Circular Flange
Membrane
NBR, FPM, SS
Retaining Ring
Galvanized Steel, SS, Aluminum
Max. Temperature
176 °F...390 °F
NSC - Capacitive Level Switch for Bulk Media
Probe Length Range
118" Max. (Rod), 49 Feet (Cable)
Max. Pressure
7 PSIG (0.5 Bar)
Media Temperature
Up to 176 °F (80 °C)
Minimum Dielectric Constant
1.5
Input Power
18...36 VDC, 24 VAC, 110 VAC, 230 VAC, 50/60 Hz
Output
Relay Contact
NSD - Economical Optical Level Switch
Suitable Media
Compatible Low-Viscosity, Clear and Non-Coating Liquids
Fitting
3/8" NPT
Body Material
316 SS, Polysulfone
Electrical Protection
NEMA 6/IP68
Max. Pressure
140 PSIG (Polysulfone), 550 PSIG (SS)
Temperature Range
15°...250 °F
NSE - Stainless Steel Float Level Switch
Max. Temperature
302 °F
Max. Pressure
87 / 220 PSIG (Model Dependent)
Materials
316 Stainless Steel
Switch
SPDT Reed Switch
Media Density
0.8 S.G. Min.
Cable
6 Ft. (2 m) Silicone-clad Cable
NSM - Polypropylene Tethered Float Level Switches
Max. Temperature
185 °F
Max. Pressure
45 PSIG
Materials
Polypropylene Float/Neoprene Cable
Switch
SPDT Mechanical Switch
Media Density
0.6 S.G. Minimum
NSP - Polypropylene Tethered Float Level Switches
Max. Temperature
140 °F (185 °F with Optional Silicone or FEP-clad Cable)
Max. Pressure
15 PSIG (NSP-5101), 30 PSIG (NSP-5201)
Wetted Materials
Polypropylene Float/TPK Cable Standard
Switch
SPDT Mechanical Switch
Float Density
0.6 S.G Min. (NSP-5201), 0.9 S.G. Min. (NSP-5101)
NST - PTFE Tethered Float Level Switches
Max. Temperature
302 °F
Max. Pressure
15 PSIG
Wetted Materials
PTFE Float / FEP-Clad Cable
Switch
SPDT Reed Switch
Switch Rating
4 to 250 VAC/ VDC, 60 VA, 1 mA to 1 A Max.
Media Density
0.79 S.G. Min.
NSV - Vibrating Level Switches for Bulk Media
Fittings
1½" NPT, G-1½ Male
Wetted Material
303 SS
Max. Temperature
176 °F
Minimum Material Density
3.75 Lb/ft3
Standard Probe Length
9" (230 mm)
Maximum Probe Length
118"
Supply Voltage
24, 110, 230 VAC 50/60 Hz or 18...36 VDC
Switch
SPDT Relay Contact, Max. 250 VAC, 1A
NV - Side Mount Level Switch
Contact
1 SPST Reed Contact, cCSAus Approved
Fitting
3/4" NPT
Wetted Material
Ni-plated Brass, SS
Max. Pressure
232 PSIG
Max. Temperature
230 °F
Liquid Density
> 0.7 SG
NVI - Vibrating Level Switch for Powders & Granulated Solids
Fittings
1½" NPT, G-1½
Wetted Materials
316-Ti Stainless Steel
Maximum Pressure
360 PSIG
Media Temperature Range
-22°...230°F (Standard), -22°...320°F (Optional)
Switch Contact
1 SPDT Relay, 250 VAC/8A Max.
NWP - Plastic Vibrating Fork Level Switches
Wetted Parts
Glass-Filled PPS
Temperature Range
-40...176 °F
Maximum Pressure
150 PSIG @ 25 °C
Switch Type
SPST Relay, 60 VAC/VDC @ 1 Amp
NWS - Vibrating Level Switches
Contact
1 Electronic Switch
Fittings
¾" NPT, 1" NPT, 1-1/2" or 2" Tri-Clamp, 1" or 2" ANSI Flange
Material
316 SS
Max. Pressure
650 PSIG @ 265 °F
Max. Temperature
265 °F
Viscosity
0.5...5000 cSt
OPT - Optical Level Switch
Switch Output
NPN or PNP Open-collector
Fittings
½" NPT, G ½, M14 Bulkhead
Material
Polysulfone, Polypropylene, 304 SS
Max. Pressure
145 PSIG
Max. Temperature
176 °F
PLS - Pendulum Level Switch for Bulk Solids
Measuring Principle
Pendulum
Available Rod Lengths
up to 78.7" (2000 mm)
Switch
SPDT Mechanical Switch, Max. 250 VAC / 15 A
Max. Media Temperature
176 °F
Max. Operating Pressure
7 PSIG
Mounting Position
Vertical, Top of Bin
RFS - Side-Mounted Level Switch
Fitting
1/2" NPT, G 1/2
Contact
N/O or N/C Reed Switch
Electrical Connection
DIN Plug, M12 Plug, or Aluminum Housing, Aluminum Housing (ATEX)
Wetted Material
304 or 316L Stainless Steel
Max. Pressure
145 PSI
Media Temperature Range
-14...248 °F
Minimum S.G.
> 0.8 S.G.
