ACUAMP ACS200 Series AC Current Switch User Guide
- October 31, 2023
- ACUAMP
Table of Contents
ACUAMP ACS200 Series AC Current Switch
Product Information
- Power Supply Output Switch Rating: The switch rating determines the maximum current that can be handled by the power supply output.
- Off-State Leakage: Off-state leakage refers to the small amount of current that may flow through the switch when it is in the off state.
- Response Time: Response time indicates the time taken by the switch to transition from one state to another (on/off).
- Hysteresis: Hysteresis refers to the difference in input signal level required to switch the output from one state to another (on/off).
- Input Ranges: Input ranges specify the acceptable voltage or current levels that can be supplied to the device.
- Setpoint Adjust: Setpoint adjust determines the ability to adjust or set a specific value for the device’s operation.
- Isolation Voltage: Isolation voltage refers to the maximum voltage that can be safely isolated between different parts of the device.
- Frequency Range: Frequency range specifies the range of frequencies that the device can handle or operate with.
- Sensing Aperture: Sensing aperture refers to the area or location where the device senses or detects a particular signal.
- Case: The case refers to the physical enclosure or housing of the device.
Product Usage Instructions
This product does not require an external power supply as it is self-powered. – The output switch can handle different ratings depending on the model: – For DC output type, the rating is 0.15A at 30VDC. – For AC output type, the rating is 1.0A at 240VAC. – For the -AA3 model, the rating is 3A at 120VAC. – Ensure that the power supply is properly isolated to prevent any potential electrical hazards. – The device allows adjustment of setpoints for specific operations if applicable. – Take into consideration the specified input ranges to ensure compatibility with the device’s requirements. – The device can operate within a certain frequency range, so make sure the input signal falls within this range. – Place the sensing aperture in the appropriate location to detect the desired signal accurately. – Pay attention to the device’s case, ensuring it is properly closed and secured for safe usage.
Specifications
Specifications
Power Supply| None – self-powered
Output| Isolated solid-state switch
Switch Rating| DC Output Type: 0.15A @ 30VDC AC Output Type: 1.0A @
240VAC.
-AA3 model: 3A @ 120VAC
Off State Leakage| <10µA AC or DC N.O., 2.5mA AC N.C., 1.4mA DC N.C.
Response Time| 40 to 250 ms
Hysteresis| 5%
Input Ranges
| Fixed core: 1-6, 6-40 & 40-175 A
Split core: 1.75-6, 6-40 & 40-200 A
Setpoint Adjust| 4 Turn potentiometer, 15 Turn potentiometer
-FT Case Style
Isolation Voltage| UL tested to 1480VAC
Frequency Range| 6 to 100 Hz
Sensing Aperture| -F Case Style: 0.55 in (14mm) dia.
-S Case Style: 0.85 in (21.7 mm) sq.
-FT Case Style: 0.75 in (19mm) dia.
Case| UL 94V-0 Flammability-rated thermoplastic
Environmental
| -Temp -4 to 122°F (-20 to 50°C), 104°F (40°C)
max for model ending in -03
-Humidity 0-95% RH, Non-condensing
-Pollution degree 2
-Altitude 2000 meters
Certifications| cULus listed E222847 CE
Sensed Current Limit
Range Jumper| Range Fixed Core| Range Split Core|
Continuous
| Max. 6 Seconds| Max.1 Second
None| 1 – 6A| 1.75 – 6A| 200A| 400A| 600A
Mid| 6 – 40A| 6 – 40A| 200A| 500A| 800A
High| 40 – 175A| 40 – 200A| 200A| 800A| 1200A
For products intended for the EU market, the following is applicable to the
CE compliance of the product:
The ACS200 Series may comply with EN 61010-1 CAT III 300V max line-to-neutral
measurement category. If the insulated cable is used for the primary circuit,
the voltage rating of the measurement category can be improved according to
the characteristics given by the cable manufacturer.
Part Number Key
Warning! Risk of hazardous voltage
When operating the device, certain parts may carry hazardous live voltage
(e.g., primary conductor, secondary terminals). The device should not be put
into service if the installation is not complete.
Warning! Risk of electric shock or personal injury
The safe operation can only be guaranteed if the device is used for the
purpose for which it was designed and within the limits of the technical
specifications. When this symbol is used, it means you should consult all
documentation to understand the nature of potential hazards and the action
required to avoid them.
Quick Start Guide
- Run the wire to be monitored through the aperture.
- Mount the sensor or suspend on conductor.
- Connect output wiring.
- Use 22-14AWG copper conductors rated75˚C min only and tighten terminals to 9 in-lbs torque.
- Make sure the load matches the output shown on the sensor’s label (volts, amps, AC/DC).
- Adjust setpoint.
- Choose the correct range by positioning the Range Jumper.
- Use the potentiometer to adjust the setpoint.
- Confirm Contact Operation.
If the sensor has an LED, a quick flash indicates current over the setpoint and the output has tripped; a slow flash shows current under the setpoint; the output is shelf state condition.
Description
ACS200 Series are solid-state current-operated switches. They operate (switch)
when the current level through the sensing aperture exceeds the adjustable
setpoint. Internal circuits are totally powered by induction from the line
being monitored
Installation
For All Versions
Run wire to be monitored through the opening in the sensor. ACS200 switches
work in the same environment as motors, contactors, heaters, pull-boxes, and
other electrical enclosures. They can be mounted in any position. Leave at
least a one-inch distance between the sensor and other magnetic devices.
Split-Core Versions (-S Suffix)
Press the tab in the direction as shown to open the sensor. After placing the
wire in the aperture, press the hinged portion firmly downward until a click
is heard and the tab pops out fully.
KEEP SPLIT-CORE SENSORS CLEAN
Silicone grease is factory-applied on the mating surfaces to prevent rust and improve performance. Be careful not to allow grit or dirt onto the grease in the contact area. The operation canbe impaired if the mating surfaces do not have good contact. Check visually before closing.
Output Wiring
Connect output wires to the sensor. Use 22-14AWG copper wire and tighten terminals to 9 in-lbs torque. Be sure the output load or loop power requirements are met.
CAUTION: Incandescent lamps can have a “Cold Filament Inrush” current of up to 10 times their rated amperage. Use caution when switching lamps on and off.
Setpoint Adjustment
ACS200 switches have two setpoint adjustment mechanisms, as follows:
- Select the setpoint RANGE with the Range Jumper.
- Fine-tune the SETPOINT with the 4- or 15-turn potentiometer (pot). See the product label for the amp ranges and jumper positions.
The pot is shipped from the factory set fully clockwise (CW) to the lowest setpoint. Turning the pot counterclockwise (CCW) will increase the setpoint. The pot has a slip-clutch to prevent damage at either end of its rotation. To determine where the adjustment is, turn the pot at least 4 (or 15) times CW. This will return it to the minimum setpoint.
Adjustment Notes
- Output is solid-state. Check output status by applying voltage to the output and reading the voltage drop across the output. An ohmmeter set on “Continuity” will give misleading results.
- It is recommended the setpoint be adjusted to allow for usual utility company voltage variations of 10-15%.
Typical Adjustment
- Move the jumper to the desired range. Turn the pot to the minimum setpoint (4 or 15 turns CW).
- Have a normal operating current running through the sensor. The output should be tripped since the pot is at its minimum setpoint. LED should be flashing fast (2 to 3 times per second).
- Turn the pot CCW until the unit output changes state. This is indicated by the slow flashing of the LED (once every 2 to 3 seconds), or by the changing of the output switch status.
- Now turn the pot CW slowly until the unit trips again. It is now set at the current level being monitored.
- To Set UNDERLOAD – Turn the pot about 1/8 turn further CW.
- To Set OVERLOAD – Turn the pot about 1/8 turn further CCW.
Troubleshooting
- The sensor is always tripped.
- A. The jumper may be set in a range that is too low for the current being monitored.
- Move the jumper to the correct range.
- B. The setpoint may be too low.
- Turn pot CCW to increase setpoint.
- C. Mismatched Polarity (DC Output Only)
- Check polarity on output wiring: output is corrected as needed.
- D. Switch has been overloaded and output is burned out.
- Check the output load, remembering to include inrush on inductive loads (coils, motors, ballasts).
- The sensor will not trip.
- A. The jumper may be set in a range that is too high for the current being monitored.
- Move the jumper to the correct range.
- B. The setpoint may be too high.
- Turn pot CW to decrease setpoint.
- C. Monitored current is below the minimum required.
- Loop the monitored wire several times through the aperture until the ‘sensed’ current rises above minimum.
- Sensed Amps = (Actual Amps) x (Number of Loops).
- Count loops on the inside of the aperture.
- Split Core models: the core contact area may be dirty.
- Open the sensor and clean the contact output area.
- D. Switch has overloaded and output is burned out.
- Check the output load, remembering to include inrush on inductive loads (coils, motors, ballasts).
Monitored Amps
| Output|
LED
---|---|---
N.O.| N.C.
None or less than the minimum| Open| Closed| Off
Below trip level| Open| Closed| Slow (2 sec.)
Above trip level| Closed| Open| Fast (0.5 sec.)