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KAL-L - Thermal Air Flow Switch
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| KAL-L - Thermal Air Flow Switch |
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Special Features:
- Negligible Pressure Loss
- No Moving Parts
- Adjustable Response Time
- Temperature Compensated
- Easy to Install
Specifications:
- Measuring range: 1 m/s - 20 m/s air
- Fitting: 1/2" NPT, 2-Bolt Flange, Smooth Shank
- Material: nickle plated brass
- Max. pressure: 120 PSIG
- Max. temperature: 250°F
- Switching accuracy: +/-10% of meas. value.
- Relays
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General Description
The KAL-L flow switch allows
rapid detection of flow rate change of
non-hazardous gases. Fast reaction
times are guaranteed by the KAL-L’s
analog electronic design. Through use of
two RTDs. . . one to sense flow and the
other to detect ambient temperature, the
switch can compensate for thermal
changes in its surroundings. This “smart”
behavior minimizes erroneous switching
due to spurious changes caused by
things such as the weather.
Any conceivable pipe size can be
accommodated by the KAL-L’s insertion
style design. Knowledge of the flow
velocity in your system is all that you need
to make the KAL-L work.
Specifications
Range: 3.3 - 66 ft/sec
@20°C, 14.5 PSIA
(restricted span for
other pressure and
temperature
conditions)
Switchpoint: potentiometer
adjustable
Accuracy: ±10% of flow rate
Reproducibility: ±1% of flow rate
Display
Flow Rate: 8-LED flow trend
Switch Status: two-color LED
Maximum Temperature Gradient: 30°K(°C)/min
@ 8m/s, 90°C
Response Time: 1 to 60 sec
(adjustable)
Warm-up Time: 30 sec
Maximum Pressure: 120 PSIG
Maximum Temperature
Process: –10°F to +250°F
Ambient: +15°F to +140°F
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Wetted Parts: Ni-plated brass
Housing Material: Nylon
Electrical Data
Power Supply: 24 VDC/VAC
–15%/+10%
Switch: Qty. 1 - SPDT
Max. Voltage: 250 VAC
Max. Current: 4 A
Max. Power: 1,000 VA
Wiring Connector
Standard: PG13.5 cable gland
Optional: 1/2” NPT conduit
Protection: NEMA 4 |
Ordering Information
Dimensions
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