RPS - 150A Self Contained Sensor
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- Adjustable Zero & Span
- Broad Sensing Beam
- Range 2 to 40", or 5 to 80"
- LED Strength Indicator
- Analog Current & Voltage Outputs
- Selected Inverted & Non-Inverted Outputs
- Short Circuit & Reverse Polarity Protected
- Limit Switch Style Housing
The RPS-150A analog ultrasonic sensor is mounted in a limit switch style housing and is completely self contained. It is powered by 20-30VDC, and is reverse polarity protected. It also has a wide beam angle which enables it to detect a target that is not at right angles. A flat target can tilt up to 35 degrees and still be detected. The RPS-150A has 2 short circuit protected analog outputs, 4-20mA and 0-10VDC. These outputs can easily be inverted and can be scaled over almost any range by means of adjusting the zero & span control. For set-up purposes an LED signal strength indicator is provided. The RPS-150A ultrasonic sensors can be used as level control devices for liquid level and bulk materials.
This LED is green when not detecting and fades to RED as a target moves into place, depending on how much reflected signal is coming back from the target. The frequency of operation is 38.5kHz. There are two ranges available in this model 2" to 40" or 5" to 80". It also features a quick disconnect receptacle. The housing is constructed of plastic valox and has standard 30mm X 60mm limit switch mounting dimensions as well as side holes for mounting the sensor on its side.
MINIMUM ANALOG RANGING
10" - 15" 40" Range
12" -
24" 80" Range
0V - 10V
4 mA - 20 mA
MAXIMUM ANALOG RANGING
2" - 40" 40" Range
5" -
80" 80" Range
0V - 10V
4mA - 20mA
INVERTED ANALOG OUTPUTS
2" - 40" 40" Range
5" -
80" 80" Range
10V - 0V
20mA - 4mA
Minimum Analog Ranging
Analog sensing in the Minimum
sensing configuration means detecting an object over a 5" range with the
RPS-150A-40. This 5" span can be adjusted to occur over any part of the sensors
range. For example, it could be adjusted to occur from 10" to 15" or 25" to
30". This is done by means of the two potentiometers on the sensor. This sensor
has a 5 : 1 adjustment ratio on its analog output, meaning that the RPS-150A-40
has a maximum span of 38" (range 2" to 40"). The analog output can also be
adjusted anywhere between the 5" and 38" spans. These adjustments are made by
the two potentiometers on the sensor. With no more then two adjustments of each
potentiometer, the desired range will be achieved.
Maximum Analog Ranging
Analog sensing in the Maximum
ranging configuration means detecting an object over a 38" range with the
RPS-150A-40. This 38" span goes from the sensors minimum sensing distance 2" to
its maximum sensing distance 40". The adjustment procedure is the same as
described in the minimum analog ranging section. The RPS-150A-80 in the maximum
ranging configuration detects an object over a 75" range. This span goes from
the sensors minimum sensing distance of 5" to its maximum sensing distance of
80". This sensor also has a 5 : 1 adjustment ratio on its analog output so its
minimum analog ranging capability is a span of 12". These adjustments are made
by the two potentiometers on the sensor.
Inverted Analog Outputs
The RPS-150A has the ability
to invert its analog outputs, meaning that the current or voltage will decrease
with distance. For the current output to be inverted the voltage output needs
to be tied to the positive of the supply voltage of the sensor. This then will
invert the current output to 20mA - 4mA. To make the voltage output inverted
10v - 0v the current output needs to be tied to the positive of the supply
voltage. In the standard mode of operation (non-inverted) P1 adjusts the near
point 4mA (0v) and P2 adjusts the far point 20mA (10v). In the non-standard
mode of operation (inverted) P1 adjusts the near point 20mA (10v) and P2
adjusts the far point 4mA (0v).
Product Specifications
| Specifications : RPS - 150A | |
|---|---|
| Operational Range: | Adjustable 2" to 40" Adjustable 5" to 80" |
| Power Input: | 2 - 30VDC Reverse Polarity Protected |
| Input Current: Ambient Temperature |
50 mA VDC 0 C to 60 C or 32 F to 140 F |
| Humidity: Transducer Housing: Outputs: |
0% -95% Non -Condensing Plastic Valox Limit Switch Style Current Soucing Analog Output 4 - 20 mA Inverted & Non-Inverted Analog Voltage Ouput 0 - 10 volts Inverted and Non-Inverted Short Circuit Protected |
| Transducer Frequency: | 38.5kHz |
| Response Time: | 2" to 40" 5" to 80" 22 mS - 52mS |
| Weight of Controller: | 9.5 ounces |
Figure:
- Angle of Tilt
- Beam Spread
- Wiring Diag. - For RPS-150A Standard
- Wiring Diag. - For RPS-150A Current Inverted
- Wiring Diag. - For RPS-150A Voltage Inverted
- Connection Diagram (Male View)
- Mounting Dimensions
| PART NUMBER | RANGE | OUTPUT |
|---|---|---|
| RPS-150A-40 RPS-150A-80 |
2" - 40" 5" - 80" |
0 - 10VDC and 4 - 20 mA Analog - Quick Disconnect |
| 5000118-3 5000118-6 |
6' Cable for Quick Disconnect 16' Cable for Quick Disconnect |