SmartFan Wisp II is designed for small DC fan speed control applications and includes both a temperature control and sensor circuit packaged in a
probe for convenient remote or on-fan
mounting. The controller uses a linear
operating principle, applying a smooth DC
voltage to the fans. It is available for both
Closed-Loop (temperature regulating) and
Open-Loop (temperature compensating)
applications. The controller’s power rating is
sufficient to control up to three typical 120 mm
fans.
Wisp II accepts an 11.5 to 30 VDC
supply voltage range for controlling 12 and
24 VDC fans. The Wisp II design allows
maximum flexibility for special applications
including on-off capability, 48 VDC operation,
temperature alarm, and custom control
parameters. Contact CRI customer service for
details.
In addition to the standard line of SmartFan controls and alarms, Control Resources also provides custom control design and manufacturing services to provide you with the optimum cooling solution for your OEM control applications.
Product Features - SmartFan Wisp II Fan Speed Control
Noise
reduction typically 15 dB(A) at idle speed
Completely
self contained including sensor
Controls
12, and 24 VDC fans
Accepts a supply voltage range of 11.5
to 30 VDC
70ºC
maximum operating temperature
Supplied
with 15 inch (24 AWG) wires and mounting clamp
Dimensions - SmartFan Wisp II Fan Speed Control
Specifications - SmartFan Wisp II Fan Speed Control
Part Number1
Type2
Supply Voltage Range
Maximum Watts to Fans3
Control Temperature
Full Speed/Idle Speed Temperatures
018W135
Closed-Loop
11.5 to 30 VDC
20 Watts
35°C
N/A
018W140
40°C
018W135P
Open-Loop
N/A
35°C / 23°C
1. Part numbers above are RoHS 5/6 (contains lead) compliant. For full 6/6 compliance add a "-F" suffix to the part number.
2. Closed-Loop models are best installed near the equipment exhaust; Open-Loop models at the air inlet.
3. Air temperature of 70 °C or less. Minimum air velocity of 200 ft/min or greater is required across the probe housing.
SmartFan Wisp II - your choice for small DC fan speed control and temperature control applications.
