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M-64 Series Fixed Set Point Flow Switches

The operating principle is based on a magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.
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The operating principle is based on a magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.

Features

• In-line flow switch with Low PD features.
• Low pressure drop features.
• Senses increasing or decreasing flow.
• Very accurate custom flow settings.
• Hermetically sealed.
• Universal mounting.

The operating principle is based on a magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.

Features

• In-line flow switch with Low PD features.
• Low pressure drop features.
• Senses increasing or decreasing flow.
• Very accurate custom flow settings.
• Hermetically sealed.
• Universal mounting.

Housing

316SS

PVC

PTFE

Pressure & Temperature

 

 

 

Maximum Operating (psig)

2500

200

200

Maximum Operating Temperature

149/300

60/140

60/140

Reed Switch Data

 

 

 

(Electrical Ratings)

10 Watts SPST or 3 Watts SPDT (Hermetically Sealed) UL Recognized. File E47258.

DC Resistive

10 Watts (3 Watts for SPDT)

AC Resistive

10 VA (3VA for SPDT)

Switching Current

0.5 A (0.25 A for SPDT)

Carrying Current

1.2 A (0.5A for SPDT)

Lead Wires

No 24 to 18 AWG. 18" Length, Polymeric UL Recognized (Belden cable or special shielded cable is available)

Lead Wires Color

SPST: 2 Blue wires;

SPDT: Green - Common, Yellow - Normally Closed, Orange - Normally Open

Flow Calibration

(Higher accuracy units available)

Set Point Accuracy

10% maximum

Set Point Differential (Deadband)

15%

Repeatability

± 2% maximum

 

For additional specification details, please refer to the product data sheet located in the documentation tab of this web page. 

 

  • Sample flow monitoring.
  • Alarm actuation.
  • Purge flows.
  • Loss of flow protection.
  • Semiconductor tools. etch
  • Laser cooling equipment.