Monitor | Safepoint Rotary Paddle Switch
The SafePoint® rotary paddle level switch with a self-validating design detects and indicates material presence or absence plus it continuously monitors its own ability to function. This functional analysis includes verification of overall electro-mechanical sensor health and reaction to system input power failure, which makes the SafePoint a truly “fail-safe” level sensor. The unit provides a relay output signal condition if a sensor failure occurs or upon loss of input power. The SafePoint incorporates patented use of Hall-effect technology, dual outputs to indicate both material presence and unit health, and microcontroller technology to continuously protect bulk solids processing and storage from the consequences of unknown sensor failure.
- Self-Validating Eliminates Costs Associated With Unexpected Sensor Failures
- Industry-First Magnetic Sensing Technology (Patented
- Monitor Sensor Health, Not Just System Power Failure - ""Fail-Safe"" PLUS
- Twist On/Off Cover - No More Bolts!
- Wiring Access - 2 Conduit Entrances
- Motor Shuts Off When Paddle Is Impeded
- Significantly Extends Motor Life
- Reduces Maintenance Costs
- Local Status Indicating Light On Most Models
- Standard SafePoint Level Switch Rated to 121°C
- Hi-Temp SafePoint Level Switch Rated to 399°C
- Hazardous Location Approval Available - IECex DIP A21
Application:
The rugged and reliable fail-safe design of the SafePoint® bin monitor makes it the best choice for critical level control applications. The unit is compatible with many granular, pelletized and powder bulk applications. It can be utilized for high level indication of materials over 10 lb/ft³ (160 kg/m³ ) and for low and intermediate level indication for materials over 5 lb/ft³ (80 kg/m³ ). The SafePoint bin level monitor can be installed almost anywhere dry bulk materials are stored including bins, hoppers, silos and tanks.Typical Applications include, but are not limited to:
Feed
Silica Sand
Rocks
Pellets
Wood
Calcium Dust
Rubber
Metals
Regrind
Coal
Peanuts
Malt
Clays
Resin
Limestone
Grain
Foundry Sand
Pre-Mix Ingredients
Rawhide
Sawdust
Coffee
| Specification | Power Requirements: 115 VAC (+/- 10%); 9 VA; 50/60 Hz 230 VAC (+/- 10%); 9 VA; 50/60 Hz 24 VAC/DC (+/- 15%); 11 VA Altitude: 6562 ft (2000 m) max Relative Humidity: Suitable for outdoors Installation Category: II Pollution Degree: 4 (Reduced to 2 via enclosure) Ambient Operating Temp: -40°F (-40°C) to +150°F (65°C) Internal Bin Temp: Std. Unit: to +250°F (+121°C) Hi-Temp Unit: to +750°F (+399°C) Conduit Connection: Two(2) 3/4” NPT; M20 cable glands (Ordinary Location units with 1-1/2” BSPT process connection only; Not provided on Haz Loc units) Outputs: Material Sense: One SPDT; 5A @ 250 VAC, 30 VDC max Unit Status (Fault): One SPDT; 5A @ 250 VAC, 30 VDC max Maximum Pressure: 30 PSI (2 bar) Sensitivity: 5 lb/ft³ (80 kg/m³ ) minimum material density (when using large 3-vane paddle) Indicators: Red and green high intensity LEDs indicate material sense and unit status conditions (Ordinary Location unit only) Housing: Die cast alum., NEMA 4 / ENCLOSURE TYPE 4, IP66 Housing Finish: Powder coating Mounting Connection: 1-1/4" NPT or R 1-1/2 (BSPT 1-1/2) Shipping Weight: Approx. 8 lbs (3.63 kg) Materials of construction/accessories: Flexible Couplings: 304 stainless steel Mounting Plates: Carbon steel or 304 stainless steel All Paddles except Ex-Flex: 304 SS Ex-Flex Belt: 304 SS coupling, rubber/fabric blend belt Flexible Cable Extension: 304 SS 1/4” diameter Shaft Seal: Nitrile Listings/Approvals: CSA(US/C): Ordinary Locations; Class I, Div. 1&2, Groups C, D; Class II, Div. 1&2, ATEX: (Ex) II 1/2 D c T 85°C ExtD A20/A21 T 85°C (Ta -40°C to +65°C) IP6x IEC Ex: DIP A21 IP6X TA 100°C -40°C to +65°C CE Mark |
| Configuration | MOTOR VOLTAGES The SafePoint® fail-safe rotary paddle bin monitor is available in configurations to serve 115VAC, 230VAC and 24VAC/DC power requirements. LOCAL VISUAL STATUS INDICATION The SafePoint bin monitor incorporates a red and green LED to indicate material sense and unit status. A red LED illuminates when material presence is detected. A green LED illuminates when material is not present. The green LED will flash during initialization immediately following power-up. The red LED will flash during a failure mode. This indication can be viewed without removing the cover (units supplied for general purpose ordinary electrical locations only). APPROVALS/LABELING The SafePoint bin monitors are available approved to CSA (CSA(US/C) for North American use) and ATEX/IECex requirements. Approvals for either general purpose, dust-ignition-proof and/or explosion-proof hazardous area locations can be provided. All units carry the CE mark. Refer to "Specifications" for details. HIGH TEMPERATURE UNITS The SafePoint high temperature model incorporates all the standard features of the SafePoint bin monitor, but can be used in applications where internal bin temperatures reach as high as 750°F (399°C). The hi-temp models incorporate a specially designed mounting plate, pipe extension with air purge connection (recommended for all high temperature applications; must be used for 500°F/260°C), shaft extension, couplings and bushings. The high-temp assembly is available in either a carbon steel or stainless steel version. |
