BELT LOAD MONITOR WITH ELECTRONIC SPEED SWITCH

Category: Conveyor Safety Switches and Devices

Description

Function :

This belt loading monitor plays an important roll of ensuring the belt is running with the load and water is sprayed when the conveyor is running in loaded condition of the Belt. Electronic Speed Switch is designed to evaluate the speed of a rotating object based on the speed information picked up by the non-contact type Inductive Proximity Switch. Output switches ON or OFF depending upon the process speed as compared to the set trip speed. Startup / Initial Bypass Delay (IBPD) facility is provided to bypass the under speed condition during startup. This allows safe time for the equipment to reach normal speed.

Non-contact sensing.
Low speed & high speed detection.
Linear dial markings for speed setting (Trip Point control).
Input sensor selection facility: NPN or PNP or 2 Wire DC (NAMUR) type proximity switches can be used.
On site speed range selection facility. (Selectable in 3 ranges).
Adjustable built in bypass delay.
2 C/O (2NO+2NC) relay contacts with site selectable Relay Logic.
Cast Al., Dust & Water tight to IP-65 grade, powder coated in light grey shade (RAL 7032), suitable for field mounting.
Sensor is dust and water tight to IP-67 grade.

Optional Features

Digital Indication Facility.
Adjustable Trip Delay.
Special Sensor for High Ambient Temperature application (upto 150°C).

Electronics Speed Switch

Supply	: 110V AC / 230V AC, 50 Hz (Selectable)
Input	: Pulses from Sensor Probe
Relay Logic	: Selectable. (Relay will energize at Under / Zero Speed. Please refer Table ‘A’)
Output	: 2 C/O (2NO+2NC) Relay Contacts
Output Range	: 55°C Max
Speed Range (Speed Range in PPM can be computed as product of no. of actuations of the sensor per revolution & RPM of the rotating object)	: 3 ranges selectable by DIP Switch 1. 5-50 PPM 2. 50-500 PPM 3. 500-5000 PPM (1-5000 PPM range available on Request, for 102C, 102 & 102HT type of ESS)
LED Indication	: Red LED – Supply ON Green LED – Pulses ON Yellow LED – Relay ON
Start Up Bypass Delay	: 1 – 30 sec (Adjustable)
Trip Delay (Optional)	: 1 – 30 sec (Adjustable)
Enclosure for Monitor	: Cast Aluminum, IP-65 grade, Powder Coated, suitable for field mounting or ABS/Polycarbonate, IP-65 grade, suitable for field mounting or Thermoplastic, DIN rail mounting for Panel Mounting Model

Belt Monitor

Supply	: 110V AC / 230V AC, 50 Hz (Selectable)
Input	: Pulses from Sensor Probe
Start Up Bypass Delay	: 1 – 30 sec (Adjustable)
Trip Delay (Optional)	: 1 – 10 sec (Adjustable)
Output	: 1 C/O (1NO+1NC) Relay Contacts
Enclosure for BLM	: Cast Aluminum, IP-65 grade, Powder Coated, suitable for field mounting or ABS/Polycarbonate, IP-65 grade, suitable for field mounting or Thermoplastic, DIN rail mounting for Panel Mounting Model

Sensor Specifications:

Sensor Probe	1. Inductive Proximity Switch suitable for safe area (Non Hazardous) 2. 3 wire DC type / 2 wire DC NAMUR type 3. Supply voltage: 8V DC (Typical). Available internally through Monitor Unit 4. Enclosure: IP-67 grade. Tubular Threaded, Nickel chrome plated brass housing, with two nuts for clamping. Suitable for field mounting 5. Cable: 2 meter long integral PVC cable (Standard) 6. Size: M18 x 40mm
Sensor Probe Selection	1. 2-wire probe (NAMUR) 2. PNP Probe 3. NPN Probe (Standard)

Sensor For Belt Load Monitor

Sensor Probe	1. Inductive Proximity Switch suitable for safe area (Non Hazardous) 2. 3 wire DC type / 2 wire DC NAMUR type 3. Supply voltage: 220V, 50 Hz. 4. Enclosure: Cast Al., Dust & Water tight to IP-65 grade, powder coated in light grey shade (RAL 7032), suitable for field mounting. 1. This is to be mounted on Base Plate supplied with the unit. 2. Cable: 2 meter long integral PVC cable (Standard) 3. Size: M25 X 80mm OR M30 X 80m
Sensor Probe Selection	1. 2-wire probe (NAMUR) 2. PNP Probe 3. NPN Probe (Standard)