Mercury level gauge - used for material flow, blockage, and level detection

When a vertically suspended mercury level gauge is subjected to external force and deviates from the vertical position by more than 15 degrees, the mercury contact inside the switch acts and the normally closed contact opens (in special requirements, it is a normally open point, proprietary technology). When the external force is removed, the tilt switch returns to the vertical state, and the mercury contact is closed again. Use the changes in the opening and closing of the internal contacts of the tilt switch to determine the working condition of the protective equipment, and take timely measures to achieve the purpose of safety protection.

Purpose:

Chute or adapter blockage detector

Conveyor belt deviation detector

Dumper discharge probe

Application scope

Blockage detection at chutes or adapters

Detection of conveyor belt deviation

Dumper discharge detection

Used for detecting material or shortage in belt or vibrating feeders

technical parameter

Rated temperature: -40 ° -70 °

Time delay: 0-10 seconds, adjustable

Rated contact: 24VDC, 115VAC, 240VAC optional

A. Application

1. High material silo

2. High blockage chute

3. Low blockage chute

4. Material flow - no material flow

B. Probe

1. 30-69- # (foot length of cable) 15, 25, or 50 standard types

2. 31-69- # - FM (when used in conjunction with 31-78 controllers, it is Class 1 and Class 2 explosion-proof)

3. 30-62 high-temperature type, reaching 240 degrees Celsius

4. 30-60 low-temperature type, reaching minus 40 degrees Celsius

5. 30-61-25 plastic material

6. 30-63-25 stacked probe (ultra heavy load)

7. 30-64-25 stainless steel stainless steel (304 stainless steel). 220V

8. The 30-65-25 standard probe is set to an AC circuit of 4 amps, with 115V. The customer's DCS/PLC is used for control.

9. Stainless steel type 30-65SS-25 for 30-65

C. Controller (all types available with 110 VAC or 220 VAC)

1. 30-78 standard NEMA-12 steel housing

2. 31-78FM Class II, Zone 1&2, explosion-proof certification

3. 30-74 standard NEMA-4X polycarbonate housing

4. 30-78-4 Special NEMA-4 Steel Housing

5. 31-78SS stainless steel, second grade

D. S technical specifications and performance characteristics

1. FM control requires FM probes to be certified

2. Carbon steel cast nickel coating/chromium coating on standard heavy-duty probes (more robust than pipe sleeves)

3. Tilt angle 12-15 degrees

4. Control time delay adjustable from 0 to 10 seconds

5. The alarm contact can be selected as NO or NC (material flow - no material flow)

6. Mercury capacity -0.7 grams

7. The probe also includes hooks or pipe connections (to reduce the radius of probe oscillation)

8. The standard heavy-duty probe has a 3/4 "NPS female thread at the bottom for connecting accessories

E. Attachment

1. Floating ball - used for liquids and low-density materials

2. AR board - for material flow - no material flow applications

3. Insulation board - used for detecting materials at higher or lower temperatures