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| 型号： | ELS-2-C-H |
| 厂商： | Curtis Industries |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | LIQUID LEVEL CONTROL 240VAC |
| 标准包装： | 1 |
| 系列： | ELS |
| 类型： | 电平控制 - 板 |
| 应用： | 充水和排水控制 |
| 安装类型： | 面板安装 |
| 电源电压： | 120/240 VAC |
| 其它名称： | Q3843720 |
Control-Trak component
Curtis ? low cost amplifier module
for liquid level applications
Model RSA
?
Features
s Inexpensive, Compact Circuitry is Compatible with any Trans-
ducer Exhibiting 100,000 ohms Resistance or Less
s Designed to Fit Curtis TR1 or TR3 Snap-In Track Intended for
Use with Curtis RS2, RS4, RS6, RS12, RS15 or RS16 Relay
Socket Assemblies (See Curtis Relay Socket Catalog)
s Ideal for Custom, Modified or Experimental Circuits – Control/
Relay Socket Combination Provides Access to the Several
Hundred Relay Styles Available from Most Relay Manufacturers
s Devices Other Than Relays, such as Solenoids or Valve
Actuators may be Operated Directly Off the Module Providing
that They are Rated 24VDC with Impedance Greater than 250
ohms
s Includes Fully Adjustable Setpoint and Circuit Designed to Limit
Maximum Direct-Short Transducer Current to 10MA/24VAC
Specifications
Model Input Supply
Input Supply : RSA-1 120VAC, 50/60 Hz
RSA-2 240VAC/ 50/60 Hz
RSA-3 24VAC, 50/60 Hz
Maximum Allowable Supply Voltage Variation : ± 10%
Maximum Power Consumption : 1 W without relay
Detectable Range : Up to 100,000 ohms
Adjustable Range : 1,000 to 100,000 ohms
Operating Point Differential : 3% (Typical)
Maximum Signal or Probe Voltage : 24VAC
Maximum Signal or Probe Current : 10MA
Control Relay : Customer furnished – See Curtis Relay Socket Catalog for complete
list of various snap-in assemblies
Control Output : 90MA @ 24VDC
Ambient Operating Temperature : 0° C to +60° C or ±32° F
Standard Termination : .110” quick-connects
Outline and Mounting Dimensions
Operation
Model RSA Amplifier Module accepts any liquid level transducer dis-
playing less than 100,000 ohms resistance. As an example of its opera-
tion as a liquid level control, the control remains de-energized until liquid
rises to contact the “H” probe. The resultant decrease in external circuit
resistance from setpoint will energize output. Output remains energized
until liquid again drops below the “H” probe. Sensitivity of the external
circuit resistance setpoint is fully adjustable up to 100,000 ohms. Model
RSA is designed to work in conjunction with track-mounted, customer
supplied relays. However, the 90MA/24VDC output is sufficient to oper-
ate many solenoid and valve devices directly when minimum impedance
exceeds 250 ohms.
Ordering
Information
Typical Curtis Model Number
Basic Amplifier Type (Also refer to “Specifications” above)
RSA-1 -TR -
Mounting (TR-Track, S-Standoff)
The composite number above reads as a “RSA amplifier for 120VAC supply.” Model is track mounted (track ordered separately – see page 11.) An auxiliary contactor offered as
a track-mounted accessory is available on special request only. Track-type units cannot be enclosure-mounted. Contact factory for additional information.
For further information on catalog listed controls contact your area Curtis representative or Curtis distributor.
For custom design or modification contact your area Curtis representative or the factory direct.
12
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