MT220 Digital Manometer

Brand: Yokogawa Electric Corporation

The MT220 can measure pressure with outstanding accuracy, high resolution, minimal tempo, and excellent stability. 

It offers a wealth of functions for field calibration, including transmitter output measurement (DCV/DCA functions), 24 Vdc output, percent error readout, measurement data memory, and Ni-Cd battery operation. 

The D/A conversion output makes it simple to output data to a recorder or other equipment. And of course, data output through a GP-IB or RS-232 interface is also possible-including data output during operation on a 12 Vdc power supply or Ni-Cd batteries.
Features
  • High Accuracy: ±0.02% of Reading, with a Maximum Allowable Input of 500 kPa (130 kPa Range Model)
  • Measurement with DCV and DCA
  • 24 Vdc Output
  • Percent Reading
  • Error Reading
  • Measurement Data Memory
  • D/A Conversion Output, Comparator Output, and External Trigger Input (Optional)
  • GP-IB and RS-232 Interfaces
  • 12 Vdc Power Supply
  • Battery Operation (Optional)

Specifications

Accuracy

  • ± (0.01 % of Reading + 0.005 % of Full Scale) at 23° ± 3° C (73.4° ± 5.4° F), Six Months after Calibration - for Model 767357
  • ± (0.01 % of Reading + 2-Digits) at 23° ± 3° C (73.4° ± 5.4° F) 30 Days after Calibration - for DC Voltage & DC Current
  • ± (0.03 % of Reading + 2-Digits) at 23° ± 3° C (73.4° ± 5.4° F) 90 Days after Calibration - for DC Voltage & DC Current
  • ± (0.05 % of Reading + 3-Digits) at 23° ± 3° C (73.4° ± 5.4° F) 6 Months after Calibration - for DC Voltage & DC Current
  • ± (0.07 % of Reading + 3-Digits) at 23° ± 3° C (73.4° ± 5.4° F) 1-Year after Calibration - for DC Voltage & DC Current
  • ± 0.005 % of Full Scale at 23° ± 3° C (73.4° ± 5.4° F), One Year after Calibration - Measurement Accuracy (767353, 767355, 767356, 767357)
  • ± 0.01 % of Full Scale at 23° ± 3° C (73.4° ± 5.4° F), One Year after Calibration - Measurement Accuracy (767351)
  • ± 0.02 % of Reading - High Accuracy
  • ± 0.05 % of Full Scale at 23° ± 3° C (73.4° ± 5.4° F) after Zero Calibration - Output Accuracy Using D/A Conversion Output
  • ± 0.075 % - Pressure/Differential Pressure Transmitters
  • Negative Pressure: ± (0.2 % of Reading + 0.1 % of Full Scale) at 23° ± 3° C (73.4° ± 5.4° F), Six Months after Calibration - for Model 767351, 767353, 767355, 767356
  • Positive Pressure: ± (0.01 % of Reading + 0.005 % of Full Scale) at 23° ± 3° C (73.4° ± 5.4° F), Six Months after Calibration - for Model 767355, 767356
  • Positive Pressure: ± (0.01 % of Reading + 0.015 % of Full Scale) at 23° ± 3° C (73.4° ± 5.4° F), Six Months after Calibration - for Model 767351
  • Positive Pressure: ± (0.01 % of Reading + 3-Digits) for 20 to 130 kPa, ± 5-Digits for 0 to 20 kPa at 23° ± 3° C (73.4° ± 5.4° F), Six Months after Calibration - for Model 767353

Applications

  • Automakers & Their Affiliates
  • Chemical & Petrochemical
  • Electric Home Appliances Manufacturers
  • Electric Power Companies
  • Heavy Electrical Machinery Builders
  • National & Public Research Institutions
  • Nuclear Power Station
  • Oil Refinery Companies
  • Pharmaceutical Manufacturers
  • Precision Instruments Manufacturers
  • Semiconductor & Electronic Components Manufacturers

Approvals & Certifications

  • BS
  • IEEE Standard 488-1978
  • SAA
  • UL
  • VDE

Battery Life

  • 12 Hours Approximately - Recharge Time
  • 6 Hours Approximately in Continuous Operation Mode when Fully Charged for Nickel-Cadmium Batteries

Communication

  • Baud Rate: 1200, 2400, 4800, 9600-bits/sec - Transfer Rate
  • GPIB (IEEE 488-1978)
  • RS-232 Interfaces (Start & Stop Synchronization)

Connection Material

  • Stainless Steel (JIS SUS316) - Input Connector

Consumption

  • 10 VA, Max.
  • 25 VA, Max.
  • 40 VA, Max.
  • 45 VA, Max.
  • 65 VA, Max.

Diaphragm Material

  • Hastelloy C-276

Display

  • 3.5-Digits - for Model 767355
  • 4.5-Digits for Pressure Measurement & Measurement with DCV & DCA Funtions - for Model 767355
  • 5.5-Digits for Pressure Measurement
  • LCD Display (with Backlight)

Electrical Connectors

  • 1/4” NPT Female Threaded - Pressure Input Connection
  • 1/4” VCO - Pressure Input Connection
  • 1/4” BSPT - Pressure Input Connection

Electrical Rating

  • 100-120 Vac at 50/60 Hz
  • 10-15 Vdc
  • 200-240 Vac at 50/60 Hz

Element

  • Diaphragm - Pressure Sensing Element

Flange Material

  • Stainless Steel (JIS SUS316) - Flange of Measurement Chamber

Frequency

  • 47 to 63 Hz - Allowable Supply Frequency

Humidity

  • 20 to 80 % Relative Humidity, Non-Condensing

Input

  • 100 mA - Max.
  • 30 Vdc - Max.
  • psi: 0.39 Absolute to 435.1 Gauge (kPa: 2.7 to 3,000, bar: 0.027 to 30) - for Model 767355
  • psi: 0.39 Absolute to 652.7 Gauge (kPa: 2.7 to 4,500, bar: 0.027 to 45) - for Model 767356
  • psi: 0.39 Absolute to 72.52 Gauge (kPa: 2.7 to 500, bar: 0.027 to 5) - for Models 767351, 767353
  • psia: 0 to 72.52 (kPa: 0 to 500, bar: 0 to 5) - for Model 767357

Input Impedance

  • 10 megaohms Approximately - for DC Voltage
  • 20 megaohms Approximately - for DC Current

Insulation Resistance

  • Minimum 20 megaohms at 500 Vdc - between AC Power Supply & Casing

Internal Part Material

  • Stainless Steel (JIS SUS316) - Internal Piping

Media

  • Gas
  • Liquids (Non-flammable, Non-explosive, Non-Toxic & Non-Corrosive Fluids)

Mounting Position Effect

  • Span: ± 0.01 % of Full Scale - Right/Left Incline of 30° (767356)
  • Span: ± 0.05 % of Full Scale - Right/Left Incline of 30° (767355)
  • Span: ± 0.2 % of Full Scale - Right/Left Incline of 30° (767353, 767357)
  • Span: ± 2.5 % of Full Scale - Right/Left Incline of 30° (767351)
  • Zero Point: ± 0.01 % of Full Scale - Forward/Backward Incline of 90° (767353, 767355, 767356, 767357)
  • Zero Point: ± 0.1 % of Full Scale - Forward/Backward Incline of 90° (767351)

NACE & NIST

  • NIST

O-Ring Material

  • Fluororubber

Operating Temperature

  • 5° to 40° C (41° to 104° F)

Operating Voltages

  • 1,500 Vac at 50/60 Hz for 1 Minute between AC Power Supply & Casing - Withstanding Voltage

Output

  • 0 to ± 2 V-D/A Conversion Output
  • 0 to ± 5 V-D/A Conversion Output
  • 24 ± 1 Vdc (Fixed)
  • 24 Vdc
  • 30 mA - Max.

Output Noise

  • 120 dB Min. (50/60 Hz, Rs = 1 kiloohms) - Common Mode Rejection Ratio
  • 60 dB Min. (50/60 Hz) - Normal Mode Rejection Ratio

Power Requirement

  • Nickel-Cadmium Battery

Pressure Range

  • Negative Pressure: psig: -1.45 to 0 (kPa: -10 to 0, bar: -0.1 to 0) - for Model 767351
  • Negative Pressure: psig: -11.6 to 0 (kPa: -80 to 0, bar: -0.8 to 0) - for Model 767353, 767355, 767356
  • Positive Pressure: psig: 0 to 1.45 (kPa: 0 to 10, bar: 0 to 0.1) - for Model 767351
  • Positive Pressure: psig: 0 to 101.5 (kPa: 0 to 700, bar: 0 to 7) - for Model 767355
  • Positive Pressure: psig: 0 to 18.85 (kPa: 0 to 130, bar: 0 to 1.3) - for Model 767353
  • Positive Pressure: psig: 0 to 435.1 (kPa: 0 to 3,000, bar: 0 to 30) - for Model 767356
  • psia: 0 to 18.85 (kPa: 0 to 130, bar: 0 to 1.3) - for Model 767357

Pressure Type

  • Absolute
  • Gauge

Resistance

  • 0.1 ohms, Max.
  • 1 kiloohms Min. - Load Resistance

Resolution

  • 0.0001 kPa - Model 767351
  • 0.001 kPa - Model 767353 & 767357
  • 0.01 kPa - Model 767355 & 767356
  • 16-bits, where Full Scale is Approximately ± 125 % of Range - Output Resolution

Response Time

  • 2.5 seconds, Max.

Sensor, Probe Material

  • Silicon

Sensor, Probe Type

  • Pressure Sensor

Storage Temperature

  • -20° to 60° C (-4° to 140° F)

Supply Voltage

  • 180-264 Vac
  • 90-132 V

Temperature Effect

  • ± (0.005 % of Full Scale)/°C - D/A Conversion Output
  • ± (0.01 % of Reading + 2-Digits)/10° C (50° F) - for DC Voltage & Current
  • Span & Zero Point: ± 0.001 % of Full Scale/°C - for Models 767353, 767355, 767356, 767357
  • Zero Point: ± 0.0015 % of Full Scale/°C - for Model 767351

Temperature Range

  • 5° to 50° C (41° to 122° F) - Fluid Temperature

Update Time

  • 2 milliseconds Approximately - Output Update Interval
  • 250 milliseconds - Readout Update Interval
  • 5 minutes Approximately - Warm-Up Time

Volumetric Displacement

  • 0.61”³ (10 cm³) Approximately - Internal Volume

  • Automakers & Their Affiliates
  • Chemical & Petrochemical
  • Electric Home Appliances Manufacturers
  • Electric Power Companies
  • Heavy Electrical Machinery Builders
  • National & Public Research Institutions
  • Nuclear Power Station
  • Oil Refinery Companies
  • Pharmaceutical Manufacturers
  • Precision Instruments Manufacturers
  • Semiconductor & Electronic Components Manufacturers

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