DT450G Dust Monitor

Brand: Yokogawa Electric Corporation

Powder is used in many industries including ceramics, cement, chemicals, pharmaceutical and food. 

In their processes, powder is collected in order to reduce the loss incurred in the process. 

Dust emissions from industrial plants are limited by the air pollution control law, local regulations or other guidelines. 

Each industrial facility is required to be maintained so that its dust emissions do not exceed the allowable level. 

Air pollution control systems such as bag filters and electrostatic precipitators are used to separate particulate or dust from the gas stream before it is exhausted into the atmosphere. 

To maintain the dust concentration of the emission gas below the specified level through effective operation of the control system, it is essential to continuously monitor the dust concentration of the exhaust gas. 

Based on installation and application experiences with the existing DT400G model, the microprocessor-based DT450G Dust Monitor features improved operationality and reliability. 

Features include one-touch automatic range setup in response to process conditions and automatic drift compensation. 

Also, the DT450G can measure at a process temperature of up to 250º C, allowing it to cover a wide range of applications.
Features
  • High Performance and High Reliability
  • Measurement range can be set through a one-touch operation in response to process conditions
  • Automatic drift compensation
  • Excellent Maintainability
  • Air purging prevents condensate from accumulating at connection points
  • Maintenance-free over long periods without any effects from dust accumulation
  • Wide Range of Applications and Simple Operation
  • Can be used in applications with process temperatures up to 250° C (482° F) and pressures up to 200 kPa (29 psi)
  • Simple parameter setting via keys on the front panel
  • Flexible Installation
  • Integrated construction of the sensor and converter for easy installation
  • Flange or socket welded mounting options are available

Specifications

Alarm

  • High/Low

Ambient Temperature Range

  • -20° to 45° C (-4° to 113° F)

Applications

  • Cement Industry
  • Ceramic Industry
  • Chemical Industry
  • Food Industry
  • Pharmaceutical Industry

BSP Connection

  • 1/4” BSPT Female

Consumption

  • 8 VA - Power Consumption

Electrical Contacts

  • Normally Closed or Normally Open

Electrical Rating

  • 5 A at 24 Vdc - Contact Output
  • 5 A at 240 Vac - Contact Output

Enclosure Finish

  • Mint Green Paint (Munsell 5.6PG 3.3/2.9) - Cover
  • Polyester Resin Coated
  • Silver Gray (Munsell 3.2PB 7.4/1.2) - Case

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP64

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - 150# ANSI/JPI
  • 2-1/2” (DN 65) - JIS 5K

Flange Size - 3” (DN 80)

  • 3” (DN 80) - JIS 10K

Flange Size - 4” (DN 100)

  • 4” (DN 100) - JIS 10K

Flow Rate

  • 4 to 30 m/sec - Gas Flow Rate (Process)
  • Approximately 50 Nl/min - Air Consumption

Humidity

  • 40 % Relative Humidity or Less - for Process Conditions
  • 95 % Relative Humidity, Non-Condensing - Ambient Humidity

Input

  • 100 V or Less - Input Surge Voltage (Process)

Materials of Construction

  • PEEK - Insulation of Sensor

Measuring Range

  • 0.1 mg/m³ to 1 kg/m³

Mounting

  • Flange Mount
  • Socket (Dedicated)

Operating Voltages

  • 180-264 Vac
  • 90-132 Vac

Output

  • 4-20 mA DC, Insulated - Analog Output

Power Requirement

  • 100-120 Vac, 50/60 Hz
  • 200-240 Vac, 50/60 Hz

Pressure Range

  • psi: 29 (kPa: 200, bar: 2) or Less - Process Pressure

Process Temperature

  • 250° C (482° F) or Less

Resistance

  • 500 ohms - Load Resistance for 4-20 mA DC Analog Output

Sensor, Probe Length

  • 18.11” (460 mm) - Probe Length

Sensor, Probe Material

  • Teflon

Sensor, Probe Material

  • 316 Stainless Steel

Size

  • 0.3 µm or Greater - Particle Size

Time Constant

  • 10 to 180 seconds, 10 second Step - Relay Output Time Constant
  • 10 to 300 seconds, 10 second Step - Damping Time Constant

Vibration

  • 0.5 G (5 m/sec²) or Less - Ambient

  • Cement Industry
  • Ceramic Industry
  • Chemical Industry
  • Food Industry
  • Pharmaceutical Industry

show more