APG ACF-10 User Manual

AUTOMATION

Operator’s Manual

PRODUCTS

GROUP, INC.

ACF-10 Series

Acoustical Flow Sensor for Solids

Rev. 1a, 2/03

Automation Products Group, Inc.

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Rev. 1a, 2/03 ACF-10 Series

Table of Contents

Warranty ......................................................................................... 2

Introduction .................................................................................... 3

Specifications .................................................................................. 4

Principle of Operation .................................................................... 5

Installation ...................................................................................... 6

Wiring ............................................................................................. 7

Adjustment ...................................................................................... 8

Cautions on Handling ................................................................... 11

Check Up ...................................................................................... 12

Dimensions ................................................................................... 13

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1

ACF-10 Series Rev. 1a, 2/03

• Warranty and Warranty Restrictions

APG warrants its products to be free from defects of material and
workmanship and will, without charge, replace or repair any equipment found
defective upon inspection at its factory, provided the equipment has been
returned, transportation prepaid, within 18 months from date of shipment from
factory.

THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL
OTHER WARRANTIES NOT EXPRESSLY SET FORTH HEREIN, WHETHER
EXPRESSED OR IMPLIED BY OPERATION OF LAW OR OTHERWISE
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

No representation or warranty, express or implied, made by any sales
representative, distributor, or other agent or representative of APG which is
not specifically set forth herein shall be binding upon APG. APG shall not be
liable for any incidental or consequential damages, losses or expenses directly
or indirectly arising from the sale, handling, improper application or use of the
goods or from any other cause relating thereto and APG’s liability hereunder,
in any case, is expressly limited to the repair or replacement (at APG’s option)
of goods.

Warranty is specifically at the factory. Any on site service will be provided at
the sole expense of the Purchaser at standard field service rates.

All associated equipment must be protected by properly rated electronic/
electrical protection devices. APG shall not be liable for any damage due to
improper engineering or installation by the purchaser or third parties. Proper
installation, operation and maintenance of the product becomes the
responsibility of the user upon receipt of the product.

Returns and allowances must be authorized by APG in advance. APG will
assign a Return Material Authorization (RMA) number which must appear on
all related papers and the outside of the shipping carton. All returns are
subject to the final review by APG. Returns are subject to restocking charges
as determined by APG’s “Credit Return Policy”.

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Rev. 1a, 2/03 ACF-10 Series

• Introduction

The ACF-10 Acoustical Flow Sensor is a compact unit that detects audible

noise made by powders and grains which is converted to a relay output.

In addition, since the ACF-10 is attached to the outside of the pipe or chute
and does not contact directly with the grains to be detected, the ACF-10 will
not have critical problems of flow fluctuations caused by conventional contact­type sensor inside the pipes and chutes, and with abrasion and corrosion
problems of the contact-type sensor. The ACF-10 can be easily attached to
existing pipes with straps.

The ACF-10 is easily adjusted with the use of four LED.

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ACF-10 Series Rev. 1a, 2/03

• Specifications

Operating Characteristics

On Indication ................... Red LED (4)

Output Capacity:

Relay Contact ............... 240 V 2 A AC

30 V 2 A DC (resistive load)

Sensitivity Adjustment..... Adjusting by offset and gain trimmers

Output Functions ............. Detect switch

On Delay adjusting trimmer (approx. 0.1 to 7 sec.)

Off Delay adjusting trimmer (approx. 0.1 to 7 sec.)

Ambient Temperature ...... -10 to 70°C (14 to 158°F) without dewing

Ambient Humidity ........... Max. 85% RH

Electrical Characteristics

Power Supply Voltage ..... 22~264 VDC AC (50/60 Hz)

Withstand Voltage ............ 1,500 VAC 1 minute (between line terminals and

output terminals)

Insulation Resistance ....... 500 VDC 100 MΩ (between line terminals and

output terminals)

Power Consumption ........ Approx. 2.5 VA (at 100 VAC)

Mechanical Characteristics

Vibration Proof ................ 60~2000 Hz 10 G

Others

Material ............................ ABS, PC

Construction ..................... Drip-proof (IP54)

Installation ....................... Attaching band or metal fixtures (option)

Wire Inlet ......................... PF1/2 (cable gland method, gasket I.D. ø10 and ø8)

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Rev. 1a, 2/03 ACF-10 Series

• Principle of Operation

When grains flow within a distributed tube such as a pipe or a chute, by

collision and friction between grains themselves or between grains and the wall
of the distributed tube, various sounds and vibrations will be generated.

The sound pickup of the ACF-10 attached outside the distributed tube

receives the generated sounds and vibrations and converts the signal to a relay
output.

Explanation of Functions

Offset Adjustment

By adjusting the signals (noise: sounds and vibrations generating during the

operation of the surrounding equipment) from the sound pickup when the
grains are not flowing, the component of noise can be cancelled.

Gain Adjustment

When the grains flows, by adjusting to amplify only the component of

signals, the signals can be increased to a desired voltage.

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ACF-10 Series Rev. 1a, 2/03

• Installation

The ACF-10 can be attached by fastening the band or the metal fixtures with

two bolts.

Cautions in Selecting a Place to be Attached

Select a place where a lot of sounds and vibrations are generating to install

the ACF-10. Be sure to install the receiving part so that it can contact firmly
with the wall of a distributed tube. If the receiving part does not contact firmly
due the rugged surface of the wall, paint the surface with silicon grease etc. to
increase the contact efficiency. Unless the receiving part is in contact firmly
with the wall, the sensor will be insensitive.

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Rev. 1a, 2/03 ACF-10 Series

• Wiring

1

23NO4

Line

Supply Voltage: 24-264V AC/DC
Relay Contact Output: 240V 2A AC
(resistive load)

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ACF-10 Series Rev. 1a, 2/03

• Adjustment

1

NON

DETECT

ZERO RY ON

6

DETECT

OFFON

DELAYDELAYGAINOFFSET

5432

1. DETECT Switch For shifting the magnetizing state of the
output relay. The magnetizing state of the
output relay is as follows:

At Non-Detection At Detection

Detect On OFF ON
Non Detect ON OFF

2. OFFSET Adjusting Trimmer An offset adjusting trimmer for noise
component
left ... larger right ... smaller

3. GAIN Adjustment Trimmer An adjusting trimmer for amplifying only
input signals
left ... smaller right ... larger

4. ON DELAY Adjusting Trimmer A time adjusting trimmer for ON DELAY
Max. setting time is approx. 7 seconds

5. OFF DELAY Adjusting Trimmer A time adjusting trimmer for OFF
DELAY. Max. setting time is approx. 7
seconds

6. LED Display The red LED (4 pieces) indicate the
intensity of input signals. When the LED
illuminate, the relay will be switched on.

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Rev. 1a, 2/03 ACF-10 Series

Preparations

Attach the ACF-10 to a distributed tube to check up again the wiring before switching
on. After switching on, the ACF-10 starts operating in an initial time of some 2 seconds
by the initial time circuit. Within the initial delay time, the relay will not operate.

(1) Flow Detection

Set the OFFSET trimmer to center, the GAIN trimmer to extreme left (min.)
and the DETECT switch to DETECT position before starting the following
procedures.

Operation Indication

1 ★ Stop the flow grains ZERO RY ON

(The magnitude of noise ❍ ❍ ❍ ❍
component is indicated)

2 Rotate the OFFSET trimmer to ZERO RY ON

illuminate the ZERO LED ❍ ❍ ❍ ❍

3 ★ Start flowing grains. ZERO RY ON

Rotate the GAIN trimmer to ad- ❍ ❍ ❍ ❍
just to illuminate RY ON LED

❊

❊

❊

(2) Plugged Detection

Set the OFFSET trimmer to center, the GAIN trimmer to extreme left (min.)
and the DETECT switch to DETECT position before starting the following
procedures.

Operation Indication

1 ★ Grains flowing. ZERO RY ON

(Rotate the GAIN trimmer 3-4 ❍ ❍ ❍ ❍
readings to the right)

2 Rotate the OFFSET trimmer to ZERO RY ON

a position where the RY ON ❍ ❍ ❍ ❍
LED is put out.

3 Rotate the GAIN trimmer to ad- ZERO RY ON

just to illuminate RY ON LED ❍ ❍ ❍ ❍

4 ★ Stop the flow of grains. ZERO RY ON

❍ ❍ ❍ ❍

❊

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❊

❊

❊

9

ACF-10 Series Rev. 1a, 2/03

Other Functions

(1) Setting of DETECT switch

• Depending upon position of DETECT switch, the relay will operate as
follows:

Relay Contact
Detect Side OFF OPEN
Non Detect Side ON CLOSE

Relay Contact
Detect Side ON CLOSE
Non Detect Side OFF OPEN

(2) Setting of DELAY TIME

ON DELAY OFF DELAY

0.1 to 7 seconds 0.1 to 7 seconds

ON DELAY: Delay in output for change from non-detection to detection.
OFF DELAY: Delay in output for change from detection to non-detection.

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Rev. 1a, 2/03 ACF-10 Series

• Cautions on Handling

Wiring

Use the connection cables of ø5 to ø10 mm cross section.

If using cables other than specified diameter and strained cables, drip-proof

must be maintained.

Treat the cable as shown in the following figure.
After passing the cable through the cable gland, making press-fit is

recommended for easy-to-work.

Shape of solderless terminals for cable

Use the solderless terminal with the size as shown in the figure below.

Recommended press-fit terminal: nominal 1.25-3.5
Use the terminal with insulating tube.

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ACF-10 Series Rev. 1a, 2/03

Other Cautions

• If the ACF-10 is dropped or receive a strong shock, it may be damaged.
Handle with care.

• Do not use the ACF-10 in a vapor and corrosive gases or misty
environments.

• Be sure to check up the terminal numbers before wiring. Be sure to fasten
the cable gland and the cover. If the fastening is loose, this may damage the
drip-proof.

• When using the ACF-10 outside, install to avoid direct sunlight or attach a
sunshading cover to avoid the temperature rise and the effect of ultraviolet
rays.

• Check Up

Check up the ACF-10’s operational functions with the following procedures.
Be sure to wire the ACF-10 before switching on. In approximately 2 seconds,
set the OFFSET trimmer in the center to tap lightly the receiving part by a
finger nail. When the illumination of the LED moves rightward from the zero
point, the operations are regarded as normal.

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Rev. 1a, 2/03 ACF-10 Series

• Dimensions — in./mm

1.97
50

3.15
80

4.21
107

0.02

0.5

1.65
42

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AUTOMATION

APG...Providing tailored solutions

for measurement applications

Automation Products Group, Inc.

Tel: [phone]

Fax: [phone]

GROUP, INC.

1/435/753-7300

PRODUCTS

e-mail: [e-mail]

www.apgsensors.com

Automation Products Group, Inc.

1025 W. 1700 N.

Logan, UT 84321