APG RCU-7000 User Manual

AUT OMATION

Operator’s Manual

PRODUCTS

GROUP, INC.

RCU-7000 Series

Power Relay Unit for Pump Control

Rev . A1, 4/07

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

Tel: [phone] • Fax: [phone] • www.apgsensors.com • E-mail: [e-mail]

RCU-7000 Series Rev . A1, 4/07

Table of Contents

Warranty .............................................................................................................3

Introduction ......................................................................................................4

Speci cations ....................................................................................................5

Dimensions ........................................................................................................6

Description of Controls .................................................................................6

Operating Characteristics of Relay Units ................................................7

Principle of Operation ...................................................................................8

Installation .........................................................................................................9

Electrical Connection and Adjustment ................................................11

Maintenance and Inspection ...................................................................15

Troubleshooting ........................................................................................... 16

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

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Rev . A1, 4/07 RCU-7000 Series

• 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 24 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 specifi cally 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 specifi cally at the factory. Any on site service will be provided at
the sole expense of the Purchaser at standard fi eld 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 fi nal review by APG. Returns are subject to restocking charges as
determined by APG’s “Credit Return Policy”.

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

3

RCU-7000 Series Rev . A1, 4/07

• Introduction

This relay unit, model RCU-7000 series, may be used with any APG level
sensor, such as models ELS, FL, FT, SLS and LF. If the level sensing  oat switch
has dry contacts, the RCU-7000 will increase the contact rating capacity. The
RCU-7000 is used for control functions such as latching for pump operation or
alarm setpoints.

Automation Products Group, Inc.

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Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

Rev . A1, 4/07 RCU-7000 Series

• Specifi cations

Operation Versions

RCU-7000: Standard

RCU-7100: High Sensitivity

Characteristics

Power Supply: 90 -132 VAC/180 - 264 VAC, 50/60 Hz

Power Consumption: 1.5 VA max.

Output Signal: SPDT relay contact

Contact Rating: 240 VAC, 5 A; 30 VDC, 5 A

Power Source to Sensor: 8 VAC, 5 mA max.

Cable Length between

Sensors and Relay Units: RCU-7000 - 3,000 ft. (max.);

RCU-7100 - 300 ft. (max.)

Operation Resistance: See Table 1 and 2

Reset Resistance: See Table 1 and 2

Alarm Indicator: Red LED

Power Indicator: Green LED

Environmental

Temperature: 32 to 120°F (0 to 50°C)

Storage Temperature: -4 to 160°F (-20 to 70°C)

Humidity 85% RH max.

Physical Attributes

Housing: ABS

Dimensions: 2 in. x 3 1/8 in. x 4 in.

Mounting Method: 11 pin socket

Weight: 0.62 lb. (280 g)

Speci cations are subject to change without notice for improvement.

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

5

RCU-7000 Series Rev . A1, 4/07

• Dimensions - in./mm

• Description of Controls

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

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Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]