OHAUS Defender D12RQR User manual

Presented By

Dallas HoustonAustinFt Worth

NicolScales.com

800.225.8181

Nicol Scales & Measurement is an ISO Accredited Calibration

Company that has provided calibration, repair and sales of all types

of weighing and measurement products since 1931.

DefenderSeries Base

Instruction Manual

Defender Series Base EN-1

INTRODUCTION

This manual covers installation, and maintenance instructions for the OHAUS DefenderTM Series Base. Please

read this manual completely before installation and operation.

SAFETY PRECAUTIONS

For safe and dependable operation of this product, please comply with the following precautions:

Operate the base only under ambient conditions specified in these instructions

Ensure that the load cell cable does not pose an obstruction or tripping hazard

Do not operate the base in hazardous environments or unstable locations

Do not drop loads on the base

Do not lift the base by the top frame; always lift from the bottom frame when moving the

base

Service should only be performed by authorized personnel

INSTALLATION

Unpacking

Unpack and inspect the product to make sure that all components have been included. The package includes the

following:

• DefenderTM Series Base • Weighing Pan • Instruction Manual

When purchased as a complete Defender Series Scale, the package will also include:

• Indicator • Column Assembly

ASSEMBLY

Weighing Pan

Remove the shipping spacers, and place the weighing pan securely over the rubber load pads on the top frame of

the base.

Note: Not included with some models

Wiring Connections

When connecting the base to an OHAUS indicator equipped with the matching circular connector, push the base

connector onto the indicator connector and turn the locking ring clockwise to lock it in place.

When connecting the base to an indicator that does not have the matching connector, install the optional load cell

cable adapter (P/N 30429931sold separately) to the indicator using the wiring codes in Table 1. Then attach the

load cell cable to the cable adapter.

Note: As an alternate wiring method, cut off the connector, strip the wires and attach them to the indicator using

the wiring codes in Table 1.

EN-2 Defender Series Base

The extension cable accessory (P/N: 30429931) cannot be used if the scale will be used in a legal for trade or

legally controlled application, because there is no provision to seal the connection between the indicator and

platform.

TABLE 1. LOAD CELL CONNECTION

Type1. DxxxWxx Bases

FUNCTION

WIRE COLOR

+ Excitation

Green

- Excitation

Black

+ Signal

Red

- Signal

White

+ Sense

Blue

- Sense

Brown

Shield

Yellow

Type2. DxxxRxx Bases

FUNCTION

WIRE COLOR

+ Excitation

Green

- Excitation

Black

+ Signal

White

- Signal

Red

+ Sense

Blue

- Sense

Brown

Shield

Yellow

Selecting the Location

To ensure accuracy, proper performance and safety, locate and operate the base on a stable, level surface. Avoid

locations with rapid temperature changes or excessive dust, air currents, vibrations, electromagnetic fields or heat.

Level the base by adjusting the four leveling feet until the bubble in the level indicator is centered. A wrench may

be needed to loosen the locking nut above each leveling foot. When the base is level, retighten the locking nuts up

against the base to lock each foot into place.

Note: Ensure that the base is level each time its location is changed.

CORRECT INCORRECT

MAINTENANCE

Cleaning

The base components should be kept clean and free of excessive material build up.

A damp cloth with water and a mild detergent may be used to wipe clean the external surfaces –do not

use acids, alkalis, strong solvents or abrasive materials.

To maintain surface integrity, do not allow debris to remain on the surface of the painted or stainless steel base

frame.

Remove the pan and use fresh water to clean the base frame surface of any debris. Dry the base with a

clean cloth or allow to air dry before replacing the pan. Repeat daily for best care.

Defender Series Base EN-3

Troubleshooting

Aside from installing components and leveling adjustments, the Defender Series Base does not require any other

adjustments as shipped from the factory.

Operational difficulties that may be encountered can often be traced to simple causes such as:

Loose or incorrect wiring connections

Failure to remove the shipping spacers

Obstructions to the base frame

Unstable environments

Incorrect calibration or setup of the indicator

If the troubleshooting section does not resolve or describe your problem, contact your authorized OHAUS service

agent. For service assistance or technical support in the United States call toll-free 1-800-526-0659 between 8:00

AM and 5:00 PM EST. An OHAUS product service specialist will be available to provide assistance. Outside the

USA, please visit our web site, www.ohaus.com to locate the OHAUS office nearest you.

TECHNICAL DATA

Technical Specifications

The technical data is valid under the following ambient conditions:

Ambient temperature: -10ºC to +40 ºC (14 °F to 104 °F)

Relative humidity: 10% to 90% relative humidity, non-condensing

Altitude: Up to 2,000m

Operability is assured at ambient temperature -10ºC to +40 ºC (14 °F to 104 °F)

Note: Not all models may be available in your area. Check with your local OHAUS representative.

TABLE 2.1 SPECIFICATIONS

MODEL

D12RQR

D25RQR

D50RQR

D12RTR

D25RTR

D50RTR

D50RQL

D125RQL

Capacity

25 lb /

12.5 kg

50 lb /

25 kg

100 lb /

50 kg

25 lb /

12.5 kg

50 lb /

25 kg

100 lb /

50 kg

100 lb /

50 kg

250 lb /

125 kg

Approved Resolution

NTEP and Measurement Canada 5000e

Safe Overload Capacity

150% of capacity

Pan Dimensions

305 x 305 mm

12 x 12 in

305 x 355 mm

12 x 14 in

457 x 457 mm

18 x 18 in

Base Construction

Stainless Steel platform with painted steel frame and rubber leveling feet

Load Cell Capacity

22 kg

50 kg

100 kg

22 kg

50 kg

100 kg

200 kg

Load Cell Cable

2 m L x 6-wire

Load Cell Type

350 Ohm, aluminum, single point

Load Cell Excitation

5-15V DC/AC

Load Cell Rated Output

2mV/V

Load Cell Protection

IP67

Net Weight

6.kg / 13.2 lb

7 kg / 15.4 lb

11.5 kg / 25.4 lb

Shipping Weight

7 kg / 15.4 lb

8 kg / 17.6 lb

13.5 kg / 29.8 lb

EN-4 Defender Series Base

TABLE 2.2 SPECIFICATIONS

MODEL

D50RTX

D125RTX

D250RTX

D50RQV

D125RQV

D250RQV

D500RQV

D125RTV

D250RTV

D500RTV

Capacity

100 lb /

50kg

250 lb /

125 kg

500 lb /

250 kg

100 lb /

50 kg

250 lb /

125 kg

500 lb /

250 kg

1000 lb /

500 kg

250 lb /

125 kg

500 lb /

250 kg

1000 lb /

500 kg

Approved

Resolution

NTEP and Measurement Canada 5000e

Safe

Overload

Capacity

150% of capacity

Pan

Dimensions

457 x 610 mm

18 x 24 in

610 x 610 mm

24 x 24 in

600 x 800 mm

24 x 31.5 in

Base

Constructio

Stainless Steel platform with painted steel frame and rubber leveling feet

Load Cell

Capacity

100 kg

250 kg

500 kg

100 kg

250 kg

500 kg

750 kg

250 kg

500 kg

750 kg

Load Cell

Cable

2 m L x 6-wire

Load Cell

Type

350 Ohm, aluminum, single point

Load Cell

Excitation

5-15V DC/AC

Load Cell

Rated

Output

2mV/V

Load Cell

Protection

IP67

Net Weight

21.5 kg / 47.4 lb

31 kg / 68.3 lb

39.2 kg / 86.4 lb

Shipping

Weight

24 kg / 52.9 lb

34 kg / 75.0 lb

42.7 kg / 94.1 lb

TABLE 2.3 SPECIFICATIONS

MODEL

D2WQS

D5WQS

D12WQS

D12WQR

D25WQR

D50WQR

D25WQL

D50WQL

D125WQL

Capacity

5 lb /

2.5 kg

10 lb /

5 kg

25 lb /

12.5 kg

25 lb /

12.5 kg

50 lb /

25 kg

100 lb /

50 kg

50 lb /

25 kg

100 lb /

50 kg

250 lb /

125 kg

Approved Resolution

NTEP and Measurement Canada 5000e

Safe Overload

Capacity

150% of capacity

Pan Dimensions

254 x 254 mm

10 x 10 mm

305 x 305 mm

12 x 12 in

457 x 457 mm

18 x 18 in

Base Construction

Stainless Steel platform with stainless steel frame and rubber leveling feet

Load Cell Capacity

6 kg

10 kg

30 kg

50 kg

100 kg

50 kg

100 kg

200 kg

Load Cell Cable

1 m L x 4-wire

2 m L x 6-wire

2.5 m L x 6-wire

Load Cell Type

350 Ohm, stainless steel, single point

Load Cell Excitation

5-15V DC/AC

Load Cell Rated

Output

2mV/V

Load Cell Protection

IP67

Net Weight

4.5 kg / 9.9 lb

6 kg / 13.2 lb

12.5 kg / 27.6 lb

Shipping Weight

6 kg / 13.2 lb

7 kg / 15.4 lb

14 kg / 30.9 lb

Defender Series Base EN-5

TABLE 2.4 SPECIFICATIONS

MODEL

D50WTX

D125WTX

D250WTX

D50WQV

D125WQV

D250WQV

D500WQV

Capacity

100 lb /

50 kg

250 lb /

125 kg

500 lb /

250 kg

100 lb /

50 kg

250 lb /

125 kg

500 lb /

250 kg

1000 lb /

500 kg

Approved Resolution

NTEP and Measurement Canada 5000e

Safe Overload Capacity

150% of capacity

Pan Dimensions

457 x 610 mm

18 x 24 in

610 x 610 mm

24 x 24 in

Base Construction

Stainless Steel platform with stainless steel frame and rubber leveling feet

Load Cell Capacity

150 kg

300 kg

500 kg

150 kg

300 kg

500 kg

750 kg

Load Cell Cable

2 m L x 6-

wire

2.5 m L x 6-wire

2 m L x 6-

wire

2.5 m L x 6-wire

Load Cell Type

350 Ohm, stainless steel, single point

Load Cell Excitation

5-15V DC/AC

Load Cell Rated Output

2mV/V

Load Cell Protection

IP67

Net Weight

24 kg / 52.9 lb

31.5 kg / 69.4 lb

Shipping Weight

26 kg / 573 lb

35.5 kg / 78.3 lb

Drawings

Figure 1. Defender Base Dimension Drawing.

TABLE 3. DIMENSIONS

Base

Pan Depth

Pan Width

Height of Pan

Height of Pan to

Surface of Table

DxxxWQS

254 mm / 10.0 in

254 mm /

32 mm / 1.3 in

74 mm / 2.9 in

DxxxRQR

DxxxWQR

305 mm / 12.0 in

52 mm / 2.1 in

95 mm / 3.7 in

DxxxRTR

305 mm / 12.0 in

355 mm / 14.0 in

52 mm / 2.1 in

99 mm / 3.9 in

DxxxRQL

DxxxWQL

457 mm / 18.0 in

65 mm / 2.6 in

110 mm / 4.3 in

DxxxRTX

DxxxWTX

457 mm / 18.0 in

610 mm / 24.0 in

80 mm / 3.2 in

130 mm / 5.1 in

DxxxRQV

DxxxWQV

610 mm / 24.0 in

82 mm / 3.2 in

130 mm / 5.1 in

DxxxRTV

600 mm / 23.6 in

800 mm / 31.5 in

90 mm / 3.5 in

132 mm / 5.2 in

*For leveling purposes, the feet may be extended up to an additional 15 mm.

EN-6 Defender Series Base

COMPLIANCE

This product complies with the applicable harmonized standards of EU Directive 2011/65/EU

(RoHS).

The EU Declaration of Conformity is available online at www.ohaus.com/ce

Disposal

In conformance with the European Directive 2012/19/EU on Waste Electrical and Electronic

Equipment (WEEE) this device may not be disposed of in domestic waste. This also applies to

countries outside the EU, per their specific requirements.

Please dispose of this product in accordance with local regulations at the collecting point specified for

electrical and electronic equipment.

If you have any questions, please contact the responsible authority or the distributor from which you

purchased this device.

Should this device be passed on to other parties (for private or professional use), the content of this

regulation must also be related.

For disposal instructions in Europe, refer to www.ohaus.com//weee.

Thank you for your contribution to environmental protection.

ISO 9001 Registration

In 1994, OHAUS Corporation, USA, was awarded a certificate of registration to ISO 9001 by Bureau Veritus

Quality International (BVQI), confirming that the OHAUS quality management system is compliant with the ISO

9001 standard’s requirements.

On May 21, 2009, OHAUS Corporation, USA, was re-registered to the ISO 9001:2008 standard.

ACCESSORIES

TABLE 4. ACCESSORIES

Part Number

Description

30424024

Base Mount Kit, stainless steel

30424410

Column Kit, 35 cm painted steel

30424411

Column Kit, 68 cm painted steel

30424412

Column Kit, 98 cm painted steel

30424413

Column Kit, 35 cm stainless steel

30424414

Column Kit, 68 cm stainless steel

30424415

Column Kit, 98 cm stainless steel

30429931

Load Cell Cable Adapter Kit

30424025

Printer Holder Kit

Defender Series Base EN-7

LIMITED WARRANTY

OHAUS products are warranted against defects in materials and workmanship from the date of delivery through

the duration of the warranty period. During the warranty period OHAUS will repair, or, at its option, replace any

component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to

OHAUS. This warranty does not apply if the product has been damaged by accident or misuse, exposed to

radioactive or corrosive materials, has foreign material penetrating to the inside of the product, or as a result of

service or modification by other than OHAUS. In lieu of a properly returned warranty registration card, the warranty

period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given

by OHAUS Corporation. OHAUS Corporation shall not be liable for any consequential damages.

As warranty legislation differs from state to state and country to country, please contact OHAUS or your local

OHAUS dealer for further details

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