VR-90 | Vibrating Rod

The VR-90 is a vibrating rod used for level indication in granular and coarse-grained bulk solids contained in bins, tanks, silos, and hoppers. It features a round, stainless steel rod that resists build-up and requires minimal maintenance. The VR-90 is appropriate for a wide variety of processing industries and is used for high- or low-level detection in bulk solids or for detecting the level of sediment settled in a liquid. The VR-90 is suitable for unclassified areas or can also be manufactured to meet a wide range of hazardous location approvals.

Vibrating Rod Product Listing

Process temperature: -58° to +482°F (-50° to +250°C)
Process pressure: -1 to +16 bar/-100 to +1600 kPa (-14.5 to +232 psig)
Ambient temperature: -40° to +176°F (-40 to +80 °C)
Bulk density: > 0.0007 lb./in.³ (0.02 g/cm³)
Process fittings: Threaded 1.0”, 1.25”. and 1.5” NPT, 2.0” flange, 2.0” clamp
Power: 20 to 253 V AC, 50/60 Hz, 20 to 253 V DC
Signal output: Relay (DPDT), transistor (NPN/PNP), two-wire output, contactless electronic switch
Switching delay: When being covered: 0.5 second, when being uncovered 1 second
Versions: Standard, detection of solids in water
Housing material: Plastic, aluminum, stainless steel (precision casting), stainless steel (electropolished)
Protection rating: IP 66/IP 68 (0.2 bar), IP 66/IP 67, IP 66/IP 68 (1 bar)
Approval Options: 
FM (NI) Class I, Div 2, Groups A, B, C, D (DIP) Class II, III, Div 1, Groups E, F, G
FM (IS) Class I, II, III Div 1, Groups A, B, C, D, E, F
FM (XP) Class I, Div 2, Groups A, B, C, D (DIP) Class II, III, Div 1, Groups E, F, G
CSA (NI) Class I, II, III Div 2, Groups A, B, C, D, E, F, G
CSA (IS) Class I, II, III Div 1, Groups A, B, C, D, E, F, G
CSA (XP) Class I, II, III Div 1, Groups A, B, C, D, E, F, G

• Easy to set up in an empty vessel without any material present
• Virtually unaffected by the chemical or physical properties of material being measured
• Requires no calibration when material is changed
• Optional stainless-steel enclosure for food or pharmaceutical operations
• Product-independent switching point for reliable operation in new or different materials
• Smooth vibrating rod surface resists buildup of material and is easy to clean
• Minimal maintenance, saving time and reducing costs

• Prevent overfilling and dry run protection
• Granular and coarse-grained bulk solids
• Hazardous location areas where approvals are needed
• Food or pharmaceuticals using stainless steel enclosure option
• Applications with strong external vibration
• Bins where the stored material is often changed