Ramsey™ Conveyor Protection Switches
Protect your equipment, prevent accidents and reduce unscheduled shutdowns with the Thermo Scientific™ Ramsey™ Conveyor Protection Switches. The Belt Misalignment Switch (Run Off Switch) and Safety Cable Pull Switch (Pull Cord Switch) are now available with network addressable modules. Ramsey conveyor safety switches also include the Tripper Position Switch. All are used for position information, control signals, and to identify potentially hazardous situations with your process equipment. They utilize a rugged, heavy-duty design and are built to last.
Actuating Force (ROS) 5 lb.
Adjustable actuator angle increment 22.5°
Description Conveyor Protection Switches
Enclosure Rating SAS NEMA Type-4X: Yellow poly enamel painted aluminum
SAS Nickel Plated NEMA Type-4X: Nickel plated aluminum
Outputs SAS NEMA Type-4X: 2 or 4 SPDT contacts rated for 6A @ 250 VAC
SAS Nickel Plated NEMA Type-4X: 2 or 4 SPDT contacts rated for 6A @ 250 VA
Pull Force Rating (SPS) 3.63 - 8.16kg (8 - 18 lb.)
Pull cord lock angle: 15°
Spacing (SPS) SAS NEMA Type-4X: 45.7m (150 ft) spacing between pull cord switches
SAS Nickel Plated NEMA Type-4X: 45.7m (150 ft) spacing between pull cord switches
Temperature Range Operating temperature: -40°C to +85°C (-40°F to +185°F)
Unit Size Each
Ramsey™ Mercury-Free Tilt Sensor
Prevent jitter and provide stability in your hazardous area applications with the Thermo Scienitifc™ Ramsey™ Mercury-Free Tilt Sensor. This sensor uses advanced technology inside the tilt probe to replicate the same performance found in traditional mercury-based Thermo Scientific Ramsey Tilt Sensor Switches.
Alarm Contact Rating Controllers: 20-35-NM-DIN: (1) NO—2 Amp @ 115/230VAC, 3 Amp @ 24VDC; All other models: (2) SPDT —10 Amp @ 115/230VAC, 7 Amp @ 30VDC non- inductive
Certifications/Compliance Tilt Sensor and Controllers: All models: cCSAus, CE
Description Mercury-Free Tilt Sensor
Fault Contact Rating Controllers: All models: (1) NO—rated for 2 Amp @
Input Power Controllers: All models: 115/230 VAC, 50/6 0Hz
Mounting Hardware Tilt Sensor: All models: Hanger and two S-hooks included
Protection Tilt Sensor: All models: IP67, NEMA-4X; Controllers: 20- 35-NM-DIN: IP20 (NEMA 1); All other models: IP65 (NEMA 4 or NEMA 4X)
Temperature Range Controllers: All models: -40° to +50°C (-40° to +122°F)
Temperature Rating Controllers: All models: -40° to +50°C (-40° to +122°F)
Time Delay Controllers: All models: 1, 2, 4 or 6 seconds selectable by jumpers
Unit Size Each
Ramsey™ 60-12 Digital Belt Speed Sensor
Monitor conveyor belt scale speed in demanding bulk material handling applications with the highly reliable and accurate Thermo Scientific™ Ramsey™ 60-12 Digital Belt Speed Sensor. Direct-coupling the sensor to the conveyor tail pulley, snubbing roll, or large diameter return roller ensures accurate belt-travel readout. No wheels ride on the belt, eliminating problems related to material build-up and slippage. The sensor element uses a brushless, pulse generator to produce a stream of pulses, each representing a unit of belt travel. The pulse stream frequency is proportional to true belt speed.
Models 60-12C, F, G and ENC Speed Sensors must be attached to a pulley shaft which turns at true conveyor belt speed. Normally, the tail pulley shaft or a snubbing roll shaft satisfies this requirement. In installations where the tail pulley or snubbing roll shaft is not accessible, an additional pulley must be installed specifically for the speed sensor.
60-12C is used for speeds from 20 to 200 RPM and supplies the output of the generator directly to the totalizer for high speed operation
60-12F is used for speeds from 3 to 30 RPM
60-12G is used for speeds from 10 to 200 RPM
60-12ENC is used for speeds 0 to 200 RPM and has a 500 pulse per revolution encoder inside, typically is used on slow RPM applications
Ramsey™ Model 60-23P Under Speed Switch
Monitor the rotational velocity of a shaft or other rotating equipment within your industrial applications with the Thermo Scientific™ Ramsey™ Model 60-23P Under Speed Switch. The Ramsey Model 60-23P Under Speed Switch is single-piece construction with no separate control unit. It is ideally suited for a wide variety of industrial applications where the need to monitor under speed or slippage conditions exist.
The Ramsey Model 60-23P Under Speed Switch Features:
Non-contacting, proximity-type detector, which provides longer life and lower operating costs
Two-bolt mounting for simple installation
Single piece construction with no separate control unit
Easy setup and troubleshooting
Rugged housing: weather-tight, polyammide/fiberglass, sturdy, lightweight
No moving parts and longer trouble-free life
Alarm/delay: 10-second delay while rotating equipment reaches operating speed
Alarm to normal delay assures notification when speed drops below adjustable set point