M-201-T41 [ETC]

High flow,adjustable flow switch with right-angle flow; 高流动性，与直角流量可调流量开关


型号：	M-201-T41
厂家：	ETC
描述：	High flow,adjustable flow switch with right-angle flow 高流动性，与直角流量可调流量开关开关
文件：	总4页 (文件大小：206K)
中文：	中文翻译
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Adjustable Flow Switches

M-201-T Series

High flow,

adjustable flow switch

with right-angle flow

Features

• Field adjustable -- infinite flow range

• High repeatability

• Extremely sensitive

• Minimum pressure drop

• Position insensitive

Applications

• Cleaning Tools in the semiconductor industry

• Cooling systems

• Water treatment systems

• Process flows

The M-201-T Series flow switches are engineered and field tested

for sensing increasing and decreasing flow rates of gases or

liquids. Pressure variation effects are minimal. This series features

such versatility, economy, and accuracy that they can be used in

virtually any application requiring fool-proof inexpensive flow

detection.

Calibration Range *

3/8” Flare’s: Water:

0.03 - 3 gpm

Air:

1/2” Flare’s: Water:

Air:

1 - 30 scfm

0.1 - 5 gpm

1 - 50 scfm

Operation

The flow switch is activated by flow forcing a piston kept in

place by a spring to travel past a reed switch. This provides a

positive signal after a certain amount of travel. Set point

adjustment is controlled by adjusting the positioning of the reed

switch.

* Maximum flows through switch are higher.

For higher flow settings, contact factory.

Specifications

Set Point Accuracy:

Repeatability:

Hysteresis:

10ꢀ maximum

2ꢀ

30ꢀ

Custom Versions Available

Malema welcomes the opportunity to apply its flow sensor

experience to work for its customers. Please contact the factory

for any special requirements; such as ports, extreme temperature

and pressure capabilities, etc.

(lower hysteresis on request)

Material Versions

• PTFE

Port Sizes

• 3/8” Flare

• 1/2” Flare

Tope Co., Ltd.

Tel: (02) 8228-0658 Fax: (02) 8228-0659 http://www.sensor.com.tw

M-201-T Series

Design Considerations/Construction

The M-201-T Series comprises a Body, Piston, and PTFE coated Spring. The M-201-T Series contains two moving parts (i.e. the

piston and spring) and a retaining ring that are in the fluid path. Construction of the piston is important from a design

perspective. A PTFE Encapsulated piston is used in this switch to ensure that all wetted parts are PTFE or PTFE coated.

Standard Specifications by Materials

Housing

PTFE

Piston

PTFE Encapsulated

PTFE Coated Stainless Steel

Spring

200

Pressure and Temperature Specifications

Maximum Operating (psig)

Burst (psig)

600

149 C (300⁰F)

Maximum Operating Temperature

Reed Switch Data (Electrical Ratings)

10 Watts SPST or 3 Watts SPDT (Hermetically Sealed) UL

Recognized. File E47258

Reed Switch

200 VDC (170 VDC for SPDT)

250 VDC (200 VDC for SPDT)

10 Watts (3 Watts for SPDT)

10 VA (3VA for SPDT)

Switching Voltage

Breakdown Voltage

DC Resistive

AC Resistive

0.5 A (0.25 VA for SPDT)

1.2 A (0.5A for SPDT)

Switching Current

Carrying Current

Lead Wires

No. 24 to 18 AWG. 18" Length, Polymeric UL Recognized or

Belden cable with connectors to suit

Lead Wires Color

SPST: 2 Blue wires; SPDT: Green - Common, Yellow - Normally

Closed, Orange - Normally Open

Flow Calibration*

Set Point Accuracy

Set Point Differential

Repeatability

(Higher accuracy units available)

10% maximum

30% (lower hysteresis on request)

+ 2% maximum

* For custom calibiration requirements, contact factory

Reed Switch Ratings as Recognized by UL

SPST

120 V ac

24 V dc

50 V dc

0.1 A general purpose

0.25 A resistive

SPDT

120 V ac

10 V dc

24 V dc

0.1 A general purpose

0.25 A resistive

0.1 A resistive

Malema Flow Sensors • 1060 South Rogers Circle • Boca Raton, Florida 33487 • 1-800-637-6418

Adjustable Flow Switches

Installation & Maintenance

This product can be mounted in any orientation. Adequate filtration and sealing procedures should be used when

mounting in flow lines. For detailed directions, please refer to our “Installation and Maintenance” sheet.

Certifications

• Meet the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low Voltage Directive 73/23/EEC

for Product Safety. Compliance was demonstrated to the following specifications as listed in the Official Journal

of the European Communities: EMC Directive 89/336/EEC: EN 55011, Class B Radiated Emissions, EN 50082-1

(Immunity): IEC 801-2, Electrostatic Discharge Immunity, IEC 801-3, RF Electromagnetic Field Immunity; Low Voltage

Directive 73/23/EEC: EN 61010-1, Safety Requirements for electrical equipment for measurement, control, and

laboratory use.

3/8” Flare’s: Cv = 3.0

1/2” Flare’s: Cv = 3.5

Dimensional and Cut-Away Drawings

Illustrated is the M-201-T Model with 3/8” Flare’s.

malema flow sensors

M-201-T Series

Dimensional and Cut-Away Drawings (continued)

Illustrated below is the M-201-T Model with 1/2” flares.

Factory Preset Information

The M-201-T is an adjustable flow switch. The flow set point can be set at the factory, upon request. Proper

calibration of the set point requires the following information. When purchasing a flow switch that needs to be

factory preset, use the “Set Point Calibration” form on page i-vi or provide this information on the purchase order.

• Calibration set point,

• Increasing or decreasing flow,

• Fluid type (i.e. liquid or gas),

• Density or specific gravity,

• Viscosity,

• System pressure and temperature,

• Flow direction (i.e. upward or downward), and

• Mounting orientation (i.e. horizontal or vertical).

Ordering Information

Standard Part Numbering

M - Model

Material

Port

Switch

M -

201

XXX

3 digit number to

identify unique

requirement such as

setting and cable

assembly requirements

to suit customers

applications

201

T - PTFE

3 - 3/8" Flare's 1 - SPST N.O.

4 - 1/2" Flare's 3 - SPDT

Malema Flow Sensors • 1060 South Rogers Circle • Boca Raton, Florida 33487 • 1-800-637-6418

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