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| 型號(hào)： | 018W135P |
| 英文描述： | WISP FAN SPEED CONTROLLER |
| 中文描述： | WISP的風(fēng)扇調(diào)速器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 82K |
| 代理商： | 018W135P |
SmartFanWispIIisdesigned
to control small DC fans. The
low voltage version includes a
temperature alarm for increased safety. The high
voltage version accepts a 38 to 75 VDC
supply voltage range and includes a voltage
limiter set to 50 VDC.
Wisp II includes both a temperature sensor
and control circuit packaged in a probe for conve-
nient 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.
28
CONTROL
RESOURCES
INCORPORATED
E-mail: sales@controlres.com s Web: www.controlres.com
Wisp II — Speed control for DC fans
FEATURES
SPECIFICATIONS
Noise reduction typically 15 dB(A) at idle speed
Completely self contained including sensor
Controls 12, 24 and 48 VDC fans
Low voltage version (018W1XXX) accepts a supply
voltage range of 11.5 to 30 VDC and includes a temp-
erature alarm output that can drive logic or a red LED
High voltage version (048W0XXX) accepts a supply
voltage range of 38 to 75 VDC and includes a voltage
limiter set to 50 VDC
70C maximum operating temperature
Supplied with 15 inch (24 AWG) wires and
mounting clamp.
Temperature
Sensor
2.00 in.
(50.8mm)
3.00 in.
(76.2mm)
0.5 in.
(12.7mm)
The Wisp II controller’s power rating is sufficient
to control up to three typical 120 mm fans. The
low voltage version can be used with 12 or 24
VDC fans. The high voltage version is used with
48 VDC fans.
018W135
018W140
1 Closed-Loop types are installed near equipment exhaust, Open-Loop types at equipment inlet.
2 Air temperature of 70°C or less, air velocity of 200 ft/min or greater. See page 13 for derating above 70°C.
3 Above 50 VDC supply, power is linearly derated, reaching 10 Watts at 75 VDC.
U.S. Patents 4,659,290, 4,722,699 and 5,364,026
Closed-Loop
11.5 - 30 VDC
20 Watts
35°C
40
N/A
38 - 75
203
35
40
Closed-Loop
Open-Loop
11.5 - 30
20
N/A
35°C/23°C
N/A
38 - 75
203
Open-Loop
048W035
048W040
018W135P
048W035P
Part Number
Supply
Voltage Range
Control
Temperature
Full Speed / Idle Speed
Temperatures
Maximum
Watts to Fans2
Type1
For additional information see:
page 13 Design Considerations
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