Dwyer MS 621 Magnesense Differential Pressure Transmitter

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Dwyer MS 621 Magnesense Differential Pressure Transmitter

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MOQ : 5 Pieces

Dwyer MS 621 Magnesense Differential Pressure Transmitter Specification

Grade
Industrial Grade

Sensor Type
Differential Pressure Sensor

Seal Material
Silicone

Thread
Integral Mounting Plate and 1/8 NPT Female Process Connection

Outer Size
84 mm x 81 mm x 37 mm (approx)

Display
No Local Display (Transmitter Output)

Material
Polycarbonate Enclosure

Processing Type
Electronic

Diameter
Not Circular

Mount Type
Surface/Wall Mount

Scale Range
0-250 Pa | Multiple selectable ranges

Accuracy
1% FS

Accessories
Mounting Screws, Instruction Manual

Operating Temperature Range
-20C to +70C

Media Compatibility
Dry, clean, non-corrosive air or gases

Pressure Limits
Rated up to 25 kPa

Electrical Connection
Screw Terminals

Response Time
Adjustable via Jumper

Weight
Approximately 150 grams

Enclosure Rating
IP65 (NEMA 4X)

Zero & Span Adjustment
Internal Push Button & DIP Switch

Power Supply
10-35 VDC, 17-32 VAC

Output Signal
4-20 mA or 0-10 VDC (jumper selectable)

Dwyer MS 621 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
5 Pieces

Payment Terms
Cash Advance (CA), Cash on Delivery (COD), Cash Against Delivery (CAD), Cash in Advance (CID)

Main Export Market(s)
Middle East, Asia

Main Domestic Market
All India

About Dwyer MS 621 Magnesense Differential Pressure Transmitter

Dwyer Instruments - Series MS - MS-621 Magnesense Differential Pressure Transmitter

See related products below for other options (LCD Display).

The Series MS Magnesense Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity.

This compact package is loaded with features such as:

Field selectable English or Metric ranges
Field upgradeable LCD display
Adjustable damping of output signal (with optional display)
Ability to select a square root output for use with pitot tubes and other similar flow sensors

Along with these features, the patented magnetic sensing technology provides exceptional long term performance and enables the Magnesense Differential Pressure Transmitter to be the single solution for your pressure and flow applications.

Specifications

Service: Air and non-combustible compatible gases.
Wetted Materials: Call us at (888) 886-8185.
Accuracy: ±1% for 0.25" (50 Pa), 0.5" (100 Pa), ±2% for 0.1" (25 Pa) and all bi-directional ranges.
Stability: ±1% F.S.O.
Temperature Limits: 0 to 150°F (-18 to 66°C).
Pressure Limits: 1 psi maximum, operation; 10 psi, burst.
Power Requirements: 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire).
Output Signals: 0 to 5 V (3-wire).
Response Time: Adjustable 0.5 to 15 sec. time constant. Provides a 95% response time of 1.5 to 45 seconds.
Zero & Span Adjustments: Digital push button.
Loop Resistance: Voltage output: min load resistance 1000 Ohms.
Current Consumption: 40 mA max.
Display (optional): 4 digit LCD.
Electrical Connections: 0-5 V, 3-Wire: European style terminal block for 16 to 22 AWG.
Electrical Entry: 1/2" NPS Thread. Accessory (A-151): Cable gland for 5 to 10 mm diameter cable.
Process Connection: 3/16" ID tubing (5 mm). Maximum OD 9 mm.
Enclosure Rating: NEMA 4X (IP66).
Mounting Orientation: Diaphragm in vertical position.
Weight: 8.0 oz (230 g).
Agency Approvals: CE.

Versatile Output Options

The MS 621 offers selectable 4-20 mA or 0-10 VDC output signals, allowing for seamless integration with various control and monitoring systems. This flexibility caters to diverse application requirements in industrial settings.

Robust Construction for Industrial Use

Housed in a matte polycarbonate enclosure rated IP65 (NEMA 4X), this transmitter is built to resist dust, moisture, and impact, ensuring long-lasting service in demanding environments such as HVAC, filtration systems, and laboratories.

Precise and Adjustable Measurement

With an internal push button and DIP switch for zero and span adjustment, users can quickly calibrate and set ranges as needed. Adjustable response time via jumper offers optimal control over measurement dynamics, enhancing operational efficiency.

FAQs of Dwyer MS 621 Magnesense Differential Pressure Transmitter:

Q: How is the output signal of the Dwyer MS 621 transmitter selected?

A: The output signal can be easily selected between 4-20 mA and 0-10 VDC using an internal jumper, providing adaptability for different system requirements.

Q: What steps are involved in installing the MS 621 Differential Pressure Transmitter?

A: Installation involves mounting the transmitter on a wall or surface using the included screws, connecting the electrical wiring to the screw terminals, and linking process tubing to the 1/8 NPT female pressure ports following the instruction manual.

Q: When should the zero and span be adjusted on this transmitter?

A: Zero and span adjustments should be performed during initial setup or after maintenance to ensure accurate pressure readings. Access these through the internal push button and DIP switch as guided in the manual.

Q: Where can this pressure transmitter be used safely?

A: The MS 621 is suitable for applications that measure dry, clean, non-corrosive air or gases such as HVAC systems, cleanrooms, and air filtration panels. It should not be used with liquids or corrosive gases.

Q: What process does the MS 621 use to measure differential pressure?

A: The transmitter features an internal electronic differential pressure sensor that detects pressure variations across its two ports, converts them to an electrical output, and delivers it via analog current or voltage based on selection.

Q: How does the adjustable response time benefit users?

A: Adjustable response time via jumper allows users to fine-tune the transmitters dynamic behavior, accommodating both rapid and slow-changing pressure environments for optimal performance and stability.

Q: What are the key benefits of using the MS 621 in an industrial environment?

A: Key benefits include robust and weatherproof construction, high accuracy, multiple selectable pressure ranges, straightforward on-site zero/span calibration, and compatibility with a wide range of monitoring systems.

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