The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.
• For corrosive and non-corrosive gases or liquids• Senses increasing or decreasing flow• Very accurate custom flow settings• Hermetically sealed• All-PTFE switch available• Universal mounting available
Housing
Acrylic
Aluminum
316SS
PTFE
Piston*
Orifice Plate or Disc
Stainless Steel
Spring
N/A
Retaining Rings*
Stainless Steel (PH 15-7 MO, AMS 5520, AISI-632) (Passivated)
Pressure & Temperature
Maximum Operating (psig)
200
1,000
3,000
80
Burst (psig)
400
2,000
5,000
160
Maximum Operating Temperature
77°C (170ºF)
149°C (300ºF)
104°C (220ºF)
Reed Switch Data
(Electrical Ratings)
10 Watts SPST or 3 Watts SPDT (Hermetically Sealed) UL Recognized. File E47258.
Reed Switch
Operating Temperature -40ºC to 125ºC
Switching Voltage
200 VDC (170 VDC for SPDT)
Breakdown Voltage
250 VDC (200 VDC for SPDT)
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.
• Pure water control for sample stations• Laser equipment• Pollution sampling equipment
