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The SERIES TDFS Thermal Flow Switch uses impulse thermal dispersion measurement technique to indicate whether the flow rate is above or below a user set flow rate. It provides NO and NC NPN outputs and two LED, one green and one red for high and low set point indication
Model
Description
TDFS-1-P-06
Thermal Dispersion Flow Switch, 316SS and polysulfone, 1/2" NPT process connection, 6' of cable with cable gland.
Specifications
Service:
Compatible water-based fluids.
Wetted Materials:
316 SS, Polysulfone, and FKM.
Setpoint Range:
0.5 to 10 ft/s (0.15 to 3.0 m/s).
Repeatability:
0.07 ft/s +3% of setpoint.
Typical Deadband:
0.1 ft/s +15% of setpoint.
Temperature Limits:
Process: 5 to 185°F (-15 to 85°C) (non-freezing); Ambient: 5 to 167°F (-15 to 75°C), Storage: -40 to 185°F (-40 to 85°C).
Pressure Limits:
300 psig (20.67 bar).
Response Time:
Approximately 8 s.
Power Requirement:
9 to 24 VDC.
Switching Current:
400 mA, derate 5 mA/°C above 23°C.
Current Consumption: Average:
93 mA, Peak: 300 mA.
Electrical Connection:
4 conductor 22 AWG, 6' (1.83 m) long with cable gland.
Process Connection:
1/2" NPT male.
Enclosure Rating:
NEMA 4X (IP65).
Housing Materials:
316 SS, 416 SS, polycarbonate, neoprene, and acrylated urethane.
Switch Type:
1 NO NPN, 1 NC NPN.
Input Power and Protection:
0.5A fuse (resettable) reverse polarity protected.
Switched Output Protection:
0.5A fuse (resettable) reverse polarity protected.
Agency Approvals:
CE.
