Level Switch - Diaphragm Style

Binatrol®
(Models G/GX/GX-SS)
DIAPHRAGM STYLE
BIN LEVEL MONITOR

Economical Point Level Detection in Bins and Hoppers
Ideal for Plugged Chute Applications
Industry's Preferred Diaphragm Switch for Over 35 Years
Pressure-Sensing Operation
Provides "green" Operation With No Power Consumption
Low-Profile, Non-Intrusive Mounting
Adjustable Sensitivity
Over-Pressure Protection
Unique External Installation and Maintenance
Multiple Diaphragm Materials
Ultra-Sensitive Switch for Lightweight Materials
HYCAR® Protective Cover for More Abrasive Materials (Optional)

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BINATROL® (MODELS G/GX/GX-SS) DIAPHRAGM STYLE Level Switch

Bulletin Button

Product Overview

Applications

Features

Principle of Operation

Available Configurations

Accessories

Options

Specifications

Warranty

 


Overview

Monitor’s line of BINATROL® diaphragm bin level switches consists of economical, reliable, and durable point level controls for point level detection of dry bulk materials like grain, pellets, cement, regrind and much more. The units can be used to eliminate bin overflow, maintain a predetermined material level, indicate plugging of chutes or conveyors or provide any of a number of level control functions. The flush mount, non-intrusive BINATROL units are ideally used when vessel size or internal clearance is limited, or where protrusion into a vessel is not acceptable. All installation and servicing, including diaphragm replacement and sensitivity adjustment, can be done from outside the vessel.


Principle of Operation

A diaphragm bin monitor provides level indication by detecting pressure applied by the bulk material to the sensing diaphragm. The unit is installed to a vessel wall so that the diaphragm is exposed to the material to be sensed. As material contacts the diaphragm, a force is exerted through the diaphragm to a pressure plate within the bin monitor. Physical deflection of the pressure plate activates an internal switch which is user accessible for signaling alarms, lights or PLC inputs. When material recedes from the diaphragm, a light duty spring returns the pressure plate and internal switch back to their original positions.



Applications

The BINATROL® diaphragm pressure switches / bin monitors can be used to detect high, low and intermediate product levels on dry material storage bins. The BINATROL can be used on either flat or curved surfaces. For bins with a diameter greater than 12' (3.6m), extra gaskets are not required. For certain applications, the BINATROL can also be used to detect plugged or backed-up conveyor chutes. Depending on the selected options and accessories, these units can be used with light powders, granules, materials with varying particle sizes, pellets, and abrasive and corrosive materials. Provides good performance in solids from 10 - 60 lbs/ft3. These products are not normally used with materials which are very light, sticky or of large particle size.

Typical Applications include, but are not limited to:

Grain / Feed

Wood Chips

Chemicals

Powders

Sawdust

Cement

Pellets

Regrind

Resin

 

 

 


Features

SIMPLE DESIGN
The simple design of BINATROL® diaphragm pressure switch / bin monitor provides for maximum ease of use. The BINATROL operates using a "floating" diaphragm, which is free of the electric switch mechanism. Diaphragm movement as little as 1/32" (0.8mm) triggers the unit. Also, the BINATROL pressure switch has no driven parts and thus requires no auxiliary power source. These design features ensure reliable and durable, low maintenance operation.

ADJUSTABLE SENSITIVITY
The BINATROL® offers a sensitivity adjustment that is accessible from outside of the bin and easily adjusted with a screwdriver. This enables the user to adjust the sensitivity of the unit, should vessel contents change, without removing the unit from the vessel.

LOW PROFILE MOUNTING
The low profile mounting of the BINATROL® unit eliminates major protrusions into the bin. This minimizes obstruction of the material flow in the vessel or chute. Also, the beveled-edge construction eliminates any possibility of material lodging.

OVERPRESSURE PROTECTION
The BINATROL® diaphragm bin monitor incorporates a unique sensing plate which provides for overpressure protection. This feature prevents damage to the unit due to heavy loads or forces. In the event that a heavy load is applied to the sensing plate, a mechanical stop prohibits the plate from exerting excessive pressure on the sensitivity spring.

EXTERNAL INSTALLATION / MAINTENANCE
One of the biggest assets of the BINATROL® diaphragm bin monitor is the ability to install and maintain the unit from outside of the vessel. All parts, including the diaphragm are accessible from outside of the bin, without removing the mounting flange. This enables the user to install the unit, change diaphragms and perform basic maintenance without removing the entire unit. For applications which require installation from within the bin, this can also be easily accomplished.

 

 


Options

DIAPHRAGM MATERIALS
The Model G and GX BINATROL® units are available with two different diaphragm materials.
- Standard Diaphragm: The standard diaphragm is constructed of neoprene and is compatible with most basic applications.
- Teflon® Diaphragm: A Teflon® diaphragm is available for use in high-temp applications. This diaphragm can also be effectively used in sticky applications.

The Model GX-SS BINATROL® unit has a stainless steel diaphragm material.


ULTRA-SENSITIVE SWITCH
The Model G, GX and GX-SS units come with a standard SPDT switch. However, for applications involving lightweight materials, Models G and GX can be specified with an ultra-sensitive switch.


Available Models

MODEL G
The Model G is the most basic BINATROL® diaphragm bin monitor. It provides accurate point level control on most bin types for products ranging from pellets to fine powders.

MODEL GX
The Model GX offers all the features of the Model G, but is specially designed to provide dust-ignition proof protection. This model should be used in applications which require Class II dust-ignition proof approval.

MODEL GX-SS
The Model GX-SS is the dust-ignition proof version of the Model G with a type 321 stainless steel diaphragm. This diaphragm provides corrosion resistance when used with corrosive materials or added protection in abrasive applications.

 


Accessories

HYCAR® COVER
Monitor offers a HYCAR® (oil resistant) cover for the diaphragm for watertight applications and to provide additional abrasion resistance. This cover is typically used with Models G and GX.


Specifications

Power Requirements:

none

Output:

SPDT dry contact, 15A @ 250 VAC max

Sensitivity:

GX-SS:

20 lb/ft³ (320 kg/m³ ) minimum material density

Std Switch:

15 LB/ft³ (240 kg/m³ ) minimum material density

Extra-Sensitive Switch:

10 LB/ft³ (160 kg/m³ ) minimum material density

Enclosure:

die cast aluminum, powder coated

Enclosure Protection:

Model G: NEMA4/ENCLOSURE TYPE 4, IP56;
Models GX and GX-SS: Indoor use or envirnomentally protected areas - only

Mounting Connection:

flange with 7.5" (190.5MM) bolt circle

Pressure Rating:

atmospheric pressure only

Wire Entry:

1/2" NPT

Diaphragm Material:

neoprene, reinforced Teflon®, or 321ss (GX-SS only)

Operating Temperature:

G/GX w/neoprene:

-40° to 180°F (-40° to 82°C)

G/GX w/Teflon®:

-40° to 250°F (-40° to 121°C)

GX-SS:

-40° to 250°F (-40° to 121°C)

Weight:

G, GX, GX-SS:

3.25 LB (1.5 kg)

Listings/Approvals:

G - CSA US/C Ordinary Locations

GX, GX-SS - UL and CSA Class II, Div. 1, 2, Groups F, G; CE mark (Ordinary Locations ONLY)

Min. Vessel Dia.:

12' (Smaller vessels will require modifications and extra gasketing.)

Teflon® is a registered trademark of Chemours (formally DuPont).
HYCAR® is a registered trademark of Lubrizol Advanced Materials, Inc.


Warranty

Monitor Technologies LLC warrants each BINATROL® diaphragm bin indicator it manufactures to be free from defects in material and workmanship under normal use and service within two (2) years from the date of purchase. The purchaser must give notice of any defect to Monitor 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 shall not apply to any product which is repaired or altered outside of the Monitor Technologies LLC 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

Part # > Product Configuration

7-8100 > Model G, Gen Pur, Neoprene, Standard, CSA
7-8101 > Model G, Gen Pur, Neoprene, Extra sensitive, CSA
7-8104 > Model G, Gen Pur, Teflon, Standard, CSA
7-8105 > Model G, Gen Pur, Teflon Extra sensitive CSA
7-8150 > Model GX, Dust Ign. Proof, Neoprene, Standard, UL/CSA
7-8153 > Model GX, Dust Ign. Proof, Neoprene, Extra sensitive, UL/CSA
7-8152 > Model GX, Dust Ign. Proof, Teflon, Standard, UL/CSA
7-8151 > Model GX, Dust Ign. Proof, Teflon, Extra sensitive, UL/CSA
7-8156 > Model GX-SS, Dust Ign. Proof, Stainless steel, Standard, UL/CSA

7-2009 > HYCAR® Diaphragm Cover
Monitor offers a HYCAR® (nitrile rubber) cover for the diaphragm to provide additional abrasion resistance in applications. The cover is also oil resistant and watertight. This cover is used with Models G and GX.

 

Last Rev.: October 21, 2020