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VibraRod
Vibratory Level Sensor


Vibra Rod Bin Level Sensor


Bulletin Button

Single Probe Vibrating Rod Design Used For Most Powders & Solids
Easy Setup - No Calibration
Universal Power Supply
No Clogging/Bridging Like Tuning Fork Designs
Unaffected by Environmental & Material Changes - No Calibration
Variety of Probe Configurations
Pipe & Cable Extension Units Available
Standard Version with Plastic or Aluminum Enclosure
Hazardous Location Approvals

Addendum (January 2010):

Ordinary Location Unit Only -
> New universal power supply (20-255V AC/DC)
> Inserted portion of probe has been shortened by 1.1 inches (28mm) to withstand stronger lateral forces.
Click Here For Details and New Dimensions.


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VibraRodTM

 

The VibraRod™ vibrating rod sensor provides reliable point level sensing in a wide variety of applications within powder and bulk solids markets. The vibrating probe principle utilized by the VibraRod overcomes typical application difficulties associated with changes in material, electrical dielectric constant, temperature or humidity while providing reliable solid state electronic circuitry that requires no calibration. The VibraRod has the ability to detect a wide range of material densities.

The VibraRod line of vibrating rod point level sensors is offered in standard length, cable extension or pipe extension versions. The standard length version extends into your vessel approximately 9 inches (235 mm). The pipe extended version can be used to extend the measuring rod up to 120 inches (3 m) and the cable extended unit can be used to extend the probe up to about 65 feet (20 m). Each version can be provided with either a plastic or aluminum housing. VibraRod units are provided with local indication using a bi-color LED and a traditional relay output.

 

.: Principle of Operation

.: Applications

.: Features

.: Available Configurations

.: Specifications

.: Warranty

 

 
Principle of Operation

The VibraRod™ line of point level sensors is a mechanical resonance system that is excited and kept in resonance by the sensor's electronic circuitry. Two piezoelectric crystals are mounted on the internal portion of the probe’s base. An electrical signal is applied to one crystal at the frequency corresponding to the probe’s self-resonance. This electrical excitation causes physical deformation of the crystal which in-turn creates probe vibration. When no material is present around the VibraRod's probe, the vibration of the probe is received by the second crystal. This causes physical deformation of the second crystal which generates a voltage analyzed by the electronic circuitry. With material present and surrounding the probe, the vibration is dampened so that the second crystal is not able to generate as high a voltage as when no material is present. The electronic circuitry senses this change and the relay output changes accordingly.

 

 
Applications
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The VibraRod™ level sensor provides reliable point level sensing in a wide variety of applications for most bulk solid materials. The single-prong vibrating rod principle requires no calibration, is easily setup and eliminates the application problems associated with build-up and clogging between tines on a typical "tuning fork" device. The VibraRod is ideal for bulk solids ranging from 3.12 lbs/ft³ (0.05 kg/dm³ ) with a maximum particle size of about 3/8 inches (10 mm) and is even self-cleaning via vibration in many applications.

Typical Applications include, but are not limited to:

Food Products

Chemicals

Clay

Sawdust

Fly Ash

Grain

Carbon Black

Plastics

Lime

Sand

Cement

Feed Pellets

Rice

Flour

Tobacco

 

 
Features

SINGLE-PRONG PROBE DESIGN
The VibraRod™ provides a probe design superior to "tuning fork" devices and eliminates problems associated with build-up between tines of "tuning fork" devices. In addition, the VibraRod's vibration acts as a self-cleaning effect for most materials, which can further eliminate problems. The reinforced 316 stainless steel rod provides a high level of corrosion resistance suitable for virtually any application.

IMMUNE TO CHANGES
The unique design of the VibraRod level sensor makes it immune to changes in many different application variables including:

Vessel contents

Material composition

Density of material

Dielectric constant

Particle size

Moisture content

Pressure and Humidity

Temperature

NO CALIBRATION REQUIRED
The VibraRod level sensor is very easy to use. Unlike RF Capacitance type sensors, no calibration is required. Simple switch adjustments for time delay, fail-safe and sensitivity are all that is required to setup and use the VibraRod point level sensor.

SELECTABLE FAIL-SAFE MODE
The VibraRod is selectable for high or low fail-safe mode. This allows the user to set the output "state" upon alarm activation and power failure.

LOCAL INDICATION
Each VibraRod level sensor includes a bi-color LED to indicate power and material absence/presence (Ordinary location sensors only).

Level Indication Light

UNIVERSAL POWER SUPPLY
All VibraRod level sensors can be provided in either a high or low voltage design. The high voltage design can be used with 85-265VAC and 120-375VDC. The low voltage design requires either 16-40VAC or 19-55VDC. This added flexibility allows two power supply ranges to cover all possible requirements.

CHOICE OF HOUSING MATERIALS
A choice of either plastic or aluminum is offered.

CHOICE OF PROBE CONFIGURATIONS
Flexibility for virtually any bulk solids point level application (top or side mounted) is enhanced with a choice of three probe configurations: Standard, Cable Extension and Pipe Extension.

HAZARDOUS LOCATION VERSION
The Standard, Pipe Extended and Cable Extended configurations of the VibraRod level sensor (aluminum housing only) can be provided with ATEX hazardous area certification. This allows the VibraRod to be used in areas where hazardous explosive dust is present.

 

 
Available Configurations

STANDARD PROBE
For Ordinary Location Version: The standard probe is approximately 8.15 inches (207 mm) in length and is suitable for both top and side mount applications. It mounts to the vessel with a 1-1/2" NPT or BSP connection.


For Hazardous Location Version: The standard probe is approximately 9-1/4 inches (235 mm) in length and is suitable for both top and side mount applications. It mounts to the vessel with a 1-1/2" NPT or BSP connection.

PIPE EXTENSION PROBE
For high and low level applications that extend beyond the length of the standard probe, the VibraRod™ can be provided with a pipe extension probe. This configuration is intended for top mount applications only. The extension is constructed of 1" stainless steel pipe, which provides structural strength and affords a means to secure the assembly to the vessel. The pipe extension probe is available in lengths up to 10 feet (3 m) in length. The unit mounts to the vessel with a 1-1/2" NPT or BSP connection.

CABLE EXTENSION PROBE
The cable extension probe configuration extends the detection length beyond the standard and pipe extension probes. This version of the VibraRod level sensor is for use in top mount applications only and can be used for both high and low level applications. A polyethylene (PE) coated steel reinforced cable is used for the extension and is available in lengths up to 65 feet (20 m). The unit mounts to the vessel with a 1-1/2" NPT or BSP connection.

 

 

 
Specifications

Power Requirements:

 

Ordinary Loc.:

20-255V AC/DC

Haz Loc. Unit
High Voltage:


85-265VAC(50/60Hz) or 120-375VDC

Haz Loc. Unit
Low Voltage:


16-40VAC(50/60Hz) or 19-55VDC

Power Consumption:

 

Ordinary Loc.:

< 2.5VA (AC); < 2W (DC)

Haz Loc. Unit
High Voltage:


<
2.5VA (AC); 1.2W (DC)

Haz Loc. Unit
Low Voltage:


<
2.5VA (AC); 1.3W (DC)

*Process Temperature:

Std. Probe:

-22° to 230° F (-30° to 110° C)

Pipe Ext. Probe:

-22° to 230° F (-30° to 110° C)

Cable Ext Probe:

-13° to 194° F (-25° to 90° C)

Ambient Temp:

-22° to 140° F (-30° to 60° C) all units

Output Relay:

SPDT isolated; 8A @ 250VAC max

Sensitivity:

3.12lbs/ft³ (0.05kg/dm³ ) min density (max particle size=3/8in(10mm); Switch Selectable: High (>6.24lbs/ft³ or 0.1kg/dm³ ) or Low (≤ 6.24lbs/ft³ or 0.1kg/dm³ )

Time Delay:

Switch Selectable:
On-Delay (when immersed):
<1.8 sec OR 5 ± 1.5 sec;
Off-Delay (when free of material):
<2 sec OR 5 ± 1.5 sec

Fail-Safe:

Switch Selectable: High or Low

Housing:

Powder coated die-cast alum. or Plastic (PBT/Polybutylene Terephthalalate fiberglass reinforced); NEMA6, IP67

Mounting Connection:

1-1/2" NPT or G 1-1/2 A (BSP 1-1/2)

Pressure Rating:

Std. Probe:

363psi (25bar)

Pipe Ext. Probe:

363psi (25bar)

Cable Ext. Probe:

87psi (6bar)

Conduit Connections:

Two (2) 1/2" NPT and Two (2) PG16

Local Indicator:

Bi-color LED; Red indicates de-energized relay and output "on";
Green indicates energized relay and output "off";
No LED illuminated indicates improper supply voltage or damaged circuitry

Probe Material:

Std. Probe:

316Ti SS (DIN 1.4571)

Pipe Ext. Probe:

Probe is 316Ti SS (DIN 1.4571); 1" pipe is 316 or 316Ti (Europe Only; DIN 1.4571)

Cable Ext. Probe:

Probe is 316Ti SS (DIN 1.4571) Polyethylene coated, steel reinforced cable; max 65ft (20m)

Weight:

Std. Probe:

Aluminum: 4.28lbs (1.94kg)
Plastic: 3.44lbs (1.56kg)

Pipe Ext. Probe:

Aluminum: 4.28lbs + 0.08lbs/in (1.94kg + 1.4kg/m)
Plastic: 3.44lbs + 0.08lbs/in (1.56kg + 1.4kg/m)

Cable Ext. Probe:

Aluminum: 4.28lbs + 0.034lbs/in (1.94kg + 0.6kg/m)

Approvals:

CE Mark
ATEX(EX) II 1/2 D IP 65 (T rating dependent on model, consult factory) (zone 20/21)

* Influenced by the ambient temperature. Refer to Installation & Operation manual for details.

 

 
Warranty

Monitor Technologies LLC warrants each VibraRod™ it manufactures to be free from defects in material and workmanship under normal use and service for two (2) years from the date of purchase. The purchaser must notify Monitor of any defects within the warranty period, return the product intact, and prepay transportation charges. The obligation of Monitor Technologies LLC under this warranty is limited to repair or replacement at its factory. This warranty does not apply to any product which is repaired or altered outside of Monitor Technologies' factory, or which has been subject to misuse, negligence, accident, incorrect wiring by others, or improper installation. Monitor Technologies LLC reserves the right to change the design and/or specifications without prior notice.

 

 
Part Numbers / Product Configurations
Monitor Logo


Part # > Product Configuration
9-8411-111 > VIBRAROD,STD,ALUM,GP,UNVSL,1-1/2NPT
9-8411-211 > VIBRAROD,STD,ALUM,GP,UNVSL,1-1/2NPT
9-8411-212 > VIBRAROD,STD,ALUM,GP,UNVSL,G 1-1/2
9-8411-311 > VIBRAROD,STD,ALUM,HL,VHI,1-1/2"NPT
9-8411-312 > VIBRAROD,STD,ALUM,HL,VHI,G 1-1/2
9-8411-321 > VIBRAROD,STD,ALUM,HL,VLO,1-1/2"NPT
9-8411-322 > VIBRAROD,STD,ALUM,HL,VLO,G 1-1/2
9-8412-111 > VIBRAROD,STD,PLSTC,GP,UNVSL,1-1/2NP
9-8412-112 > VIBRAROD,STD,PLSTC,GP,VH1,G 1-1/2
9-8412-211 > VIBRAROD,STD,PLSTC,GP,UNVSL,1-1/2NP
9-8412-212 > VIBRAROD,STD,PLSTC,GP,UNVSL,G 1-1/2
9-8421-111 > VIBRAROD,CBL-EXT,ALUM,GP,UNVSL,1.5N
9-8421-211 > VIBRAROD,CBL-EXT,ALUM,GP,UNVSL,1.5N
9-8421-212 > VIBRAROD,CBL-EXT,ALUM,GP,UNVSL,G1.5
9-8421-311 > VIBRAROD,CBL-EXT,ALUM,HL,VHI,1-1/2"
9-8421-312 > VIBRAROD,CBL-EXT,ALUM,HL,VHI,G 1-1/2
9-8421-321 > VIBRAROD,CBL-EXT,ALUM,HL,VLO,1-1/2"
9-8421-322 > VIBRAROD,CBL-EXT,ALUM,HL,VLO,G 1-1/2
9-8422-111 > VIBRAROD,CBL-EXT,PLSTC,GP,UNVS,1.5N
9-8422-211 > VIBRAROD,CBL-EXT,PLSTC,GP,UNVS,1.5N
9-8422-212 > VIBRAROD,CBL-EXT,PLSTC,GP,UNVS,G1.5
9-8431-111 > VIBRAROD,PIPE-EXT,ALUM,GP,VHI,1-1/2
9-8431-211 > VIBRAROD,PIPE-EXT,ALUM,GP,UNVS,1.5N
9-8431-212 > VIBRAROD,PIPE-EXT,ALUM,GP,UNVS,G1.5
9-8431-311 > VIBRAROD,PIPE-EXT,ALUM,HL,VHI,1-1/2
9-8431-312 > VIBRAROD,PIPE-EXT,ALUM,HL,VHI,G 1-1/2
9-8431-321 > VIBRAROD,PIPE-EXT,ALUM,HL,VLO,1-1/2
9-8431-322 > VIBRAROD,PIPE-EXT,ALUM,HL,VLO,G 1-1/2
9-8432-111 > VIBRAROD,PIPE-EXT,PLSTC,GP,VHI,1-1/2
9-8432-211 > VIBRAROD,PIPE-EXT,PLSTC,GP,UNV,1.5N
9-8432-212 > VIBRAROD,PIPE-EXT,PLSTC,GP,UNV,G1.5

 


Last Rev.: June 18, 2013

 

 

 
 
QuantiMassTM
Mass Flow Measurement Systems
The QuantiMass in-line mass flow sensor measures the flow of quantities in pneumatic conveying & free-falling processes. The sensor is based on the latest Microwave Doppler Effect technology and provides fast, in-line / on-line measuring without the use of weight scales.
The sturdy, non-intrusive design of the sensor minimizes maintenance. In addition, the compact size of the sensor makes for easy installation into existing processes. Suitable for powders, dust, pellets, and granular up to 0.75 inch (2cm).

Versions:
Ultra Series-Includes controller
PRO Series-Includes transmitter

A practical application for the QuantiMass would be to monitor material flow rates to verify blending mixture ratios.

Principle of Operation:
The QuantiMass Mass Flow Measurement Sensor / Meter is designed with the latest microwave technology and is used to continuously quantify the flow of powders & solids being conveyed in metallic pipes. The QuantiMass is based on technology that has been developed and proven by Muetec Intruments over several years. The measurement process of the sensor is centered on the Doppler effect. The mass flow-rate is determined by evaluating the frequency and amplitude changes during the measurement process. Particles at rest, such as deposits, do not influence the measurement. All powders, dust, pellets and granules can be measured reproducibly, up to the size of 0.75 inch (2cm). The QuantiMass sensor is suitable for continuous in-line / on-line measurements in pneumatic conveying or in free-fall pipelines.

Click here for more information on the QuantiMass
or contact Monitor Technologies LLC at
Tel.: 800-601-6319 in the USA and
Tel.: 630-365-9403 worldwide.
 
>>Download QuantiMass Ultra Bulletin

>>Download QuantiMass PRO Bulletin


>>Download QuantiMass Application Questionnaire (Excel file)

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