DEFENDER™ 3000

DEFENDER™ 3000

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Ohaus Defender 3000 Bench Scale 

Versatile Bench Scales Meet Basic Industrial Requirements for Dry Applications

The OHAUS Defender 3000 Series line of bench scales is ideal for general weighing and simple counting applications in production, packaging, warehouse, inventory, shipping and receiving areas. The Defender 3000 Series features a simple yet rugged tubular-frame base design and indicators with tactile keys, a backlit LCD display, built-in rechargeable battery operation and flexible mounting capabilities.

Standard Features 

• Five Capacities: 33 lb/15 kg, 66 lb/30 kg, 132 lb/60 kg, 330 lb/150 kg and 660 lb/300 kg (depending on calibration unit used).

• Default resolution 1:6000 to 7500d; NTEP certified and Measurement Canada approved to 3,000e.

• 304 stainless steel pan with painted carbon steel frame and aluminum IP67 load cell

• Indicator features a high-impact durable ABS plastic housing with a reversible face for either wall, column or table-top mounting

• Adjustable non-slip rubber levelling feet with externally visible level indicator

• Multiple weighing units: lb, oz, lb: oz, kg, g (depending on model)

• Parts counting mode with selectable sample sizes, last sample size and Average Piece Weight data

• 1-in/25mm high LCD weight display with high-contrast backlight

Specifications 

Defender 3000 Brochure



 Models Capacity x Readability (d)

Capacity x Readability (d)

(cal unit lb)

Displayed Resolution
D31P15BR

33 lb × 0.005 lb

528 oz × 0.05 oz

15 kg × 0.002 kg

15,000 g × 2 g

30 lb × 0.005 lb

4,80 oz × 0.1 oz

30 lb × 0.1 oz

13.6 kg × 0.002 kg

13,600 g × 2 g 

1:7500
D31P30BR

66 lb × 0.01 lb

1056 oz × 0.2 oz

66 lb × 0.2 oz

30 kg × 0.005 kg

30,000 g × 5 g

60 lb × 0.01 lb

960 oz × 0.2 oz

60 lb × 0.2 oz

27 kg × 0.005 kg

27,000 g × 5 g 

1:6000
D31P60BR

132 lb × 0.02 lb

2,112 oz × 0.5 oz

60 kg × 0.01 kg

60,000 g × 10 g

 150 lb × 0.02 lb

2,400 oz × 0.2 oz

68 kg × 0.01 kg

68,000 g × 10 g

1:7500
D31P60BL

132 lb × 0.02 lb

2,112 oz × 0.5 oz

60 kg × 0.01 kg

60,000 g × 10 g

150 lb × 0.02 lb

2,400 oz × 0.2 oz

68 kg × 0.01 kg

68,000 g × 10 g 

1:7500
D31P150BL

330 lb × 0.05 lb

5,280 oz × 0.5 oz

150 kg × 0.02 kg

150,000 g × 20 g

300 lb × 0.05 lb

4,800 oz × 1 oz

300 lb × 1 oz

136 kg × 0.02 kg

136,000 g × 20 g 

1:7500
D31P150BX

330 lb × 0.05 lb

5,280 oz × 0.5 oz

150 kg × 0.02 kg

150,000 g × 20 g

300 lb × 0.05 lb

4,800 oz × 1 oz

300 lb × 1 oz

136 kg × 0.02 kg

136,000 g × 20 g

1:7500
D31P300BX

660 lb × 0. 1lb

10,576 oz × 2 oz

660 lb × 2 oz

300 kg × 0.05 kg

300,000 g × 50 g

600 lb × 0.1 lb

9,600 oz × 2 oz

600 lb × 2 oz

272 kg × 0.05 kg

272,000 g × 50 g

1:6000
 Platform (W × D × min H) 12 × 14 × 4.8 in / 305 × 355 × 123 mm 16.5 × 21.6 × 5.4 in / 420 × 550 × 136 mm 19.7 × 25.6 × 5.8 in / 500 × 650 × 147 mm
Front View Dimensions (F1 × F2 × F3 × F4 × F5 × F6)

8.2 × 6.5 × 12 × 4.8 × 3 × 10 in

210 × 166 × 305 × 123 × 75 × 256 mm

8.2 × 6.5 × 16.5 × 5.4 × 3.2 × 14.6 in

210 × 166 × 420 × 136 × 80 × 371 mm

8.2 × 6.5 × 19.7 × 5.6 × 3.5 × 17.3 in

210 × 166 × 500 × 143 × 90 × 440 mm

Side View Dimensions (S1 × S2 × S3 × S4 × S5)

22.5 × 18.6 × 14 × 12 × 2 in

572 × 472 × 355 × 306 × 52 mm

36.2 × 26.3 × 21.7 × 19.7 × 2 in

920 × 668 × 550 × 500 × 52 mm

36.2 × 29.1 × 25.6 × 23.2 × 2 in

920 × 740 × 650 × 590 × 52 mm

 Column 13.8 in / 350 mm fixed height, tubular painted steel 27.6 in / 700 mm fixed height, tubular painted steel
Safe Overload Capacity 125% of rated capacity
Functions  Weighing, Parts Counting
Weight Display 6-digit, 7-segment backlit LCD, 1 inch / 25 mm high digits
Keyboard 4 function mechanical keys, raised, tactile
Stabilization Time  within 2 seconds 
Auto-zero tracking  off, 0.5, 1 or 3 divisions 
Key zeroing range  2% or 100% of capacity 
Span calibration  5 lb /kg to 100% of capacity, user selectable 
Power  AC adapter with 100- hour internal rechargeable lead acid battery included 
Interface  Bi-directional RS232C
Operating temperature range  14°F to 104°F / -10°C to 40°C, Maximum relative humidity 80 % for temperatures up to 88°F / 31°C, decreasing linearly to 50 % relative humidity at 104°F / 40°C, non-condensing
 Net weight  26 lb / 12kg 42 lb / 19kg 71 lb / 32kg
Shipping weight  33 lb / 15kg 51 lb / 23 kg 82 lb / 37 kg
Shipping dimensions (mm) 25.3 × 19.6 × 8.5 in / 642 × 497 × 212 33.7 × 22.2 × 8.9 in / 857 × 564 × 225 40.2 × 27 × 9.7 in / 1022 × 687 × 247

 

Ohaus Defender 3000 Bench Scale 

Versatile Bench Scales Meet Basic Industrial Requirements for Dry Applications

The OHAUS Defender 3000 Series line of bench scales is ideal for general weighing and simple counting applications in production, packaging, warehouse, inventory, shipping and receiving areas. The Defender 3000 Series features a simple yet rugged tubular-frame base design and indicators with tactile keys, a backlit LCD display, built-in rechargeable battery operation and flexible mounting capabilities.

Standard Features 

• Five Capacities: 33 lb/15 kg, 66 lb/30 kg, 132 lb/60 kg, 330 lb/150 kg and 660 lb/300 kg (depending on calibration unit used).

• Default resolution 1:6000 to 7500d; NTEP certified and Measurement Canada approved to 3,000e.

• 304 stainless steel pan with painted carbon steel frame and aluminum IP67 load cell

• Indicator features a high-impact durable ABS plastic housing with a reversible face for either wall, column or table-top mounting

• Adjustable non-slip rubber levelling feet with externally visible level indicator

• Multiple weighing units: lb, oz, lb: oz, kg, g (depending on model)

• Parts counting mode with selectable sample sizes, last sample size and Average Piece Weight data

• 1-in/25mm high LCD weight display with high-contrast backlight

Specifications 

Defender 3000 Brochure



 Models Capacity x Readability (d)

Capacity x Readability (d)

(cal unit lb)

Displayed Resolution
D31P15BR

33 lb × 0.005 lb

528 oz × 0.05 oz

15 kg × 0.002 kg

15,000 g × 2 g

30 lb × 0.005 lb

4,80 oz × 0.1 oz

30 lb × 0.1 oz

13.6 kg × 0.002 kg

13,600 g × 2 g 

1:7500
D31P30BR

66 lb × 0.01 lb

1056 oz × 0.2 oz

66 lb × 0.2 oz

30 kg × 0.005 kg

30,000 g × 5 g

60 lb × 0.01 lb

960 oz × 0.2 oz

60 lb × 0.2 oz

27 kg × 0.005 kg

27,000 g × 5 g 

1:6000
D31P60BR

132 lb × 0.02 lb

2,112 oz × 0.5 oz

60 kg × 0.01 kg

60,000 g × 10 g

 150 lb × 0.02 lb

2,400 oz × 0.2 oz

68 kg × 0.01 kg

68,000 g × 10 g

1:7500
D31P60BL

132 lb × 0.02 lb

2,112 oz × 0.5 oz

60 kg × 0.01 kg

60,000 g × 10 g

150 lb × 0.02 lb

2,400 oz × 0.2 oz

68 kg × 0.01 kg

68,000 g × 10 g 

1:7500
D31P150BL

330 lb × 0.05 lb

5,280 oz × 0.5 oz

150 kg × 0.02 kg

150,000 g × 20 g

300 lb × 0.05 lb

4,800 oz × 1 oz

300 lb × 1 oz

136 kg × 0.02 kg

136,000 g × 20 g 

1:7500
D31P150BX

330 lb × 0.05 lb

5,280 oz × 0.5 oz

150 kg × 0.02 kg

150,000 g × 20 g

300 lb × 0.05 lb

4,800 oz × 1 oz

300 lb × 1 oz

136 kg × 0.02 kg

136,000 g × 20 g

1:7500
D31P300BX

660 lb × 0. 1lb

10,576 oz × 2 oz

660 lb × 2 oz

300 kg × 0.05 kg

300,000 g × 50 g

600 lb × 0.1 lb

9,600 oz × 2 oz

600 lb × 2 oz

272 kg × 0.05 kg

272,000 g × 50 g

1:6000
 Platform (W × D × min H) 12 × 14 × 4.8 in / 305 × 355 × 123 mm 16.5 × 21.6 × 5.4 in / 420 × 550 × 136 mm 19.7 × 25.6 × 5.8 in / 500 × 650 × 147 mm
Front View Dimensions (F1 × F2 × F3 × F4 × F5 × F6)

8.2 × 6.5 × 12 × 4.8 × 3 × 10 in

210 × 166 × 305 × 123 × 75 × 256 mm

8.2 × 6.5 × 16.5 × 5.4 × 3.2 × 14.6 in

210 × 166 × 420 × 136 × 80 × 371 mm

8.2 × 6.5 × 19.7 × 5.6 × 3.5 × 17.3 in

210 × 166 × 500 × 143 × 90 × 440 mm

Side View Dimensions (S1 × S2 × S3 × S4 × S5)

22.5 × 18.6 × 14 × 12 × 2 in

572 × 472 × 355 × 306 × 52 mm

36.2 × 26.3 × 21.7 × 19.7 × 2 in

920 × 668 × 550 × 500 × 52 mm

36.2 × 29.1 × 25.6 × 23.2 × 2 in

920 × 740 × 650 × 590 × 52 mm

 Column 13.8 in / 350 mm fixed height, tubular painted steel 27.6 in / 700 mm fixed height, tubular painted steel
Safe Overload Capacity 125% of rated capacity
Functions  Weighing, Parts Counting
Weight Display 6-digit, 7-segment backlit LCD, 1 inch / 25 mm high digits
Keyboard 4 function mechanical keys, raised, tactile
Stabilization Time  within 2 seconds 
Auto-zero tracking  off, 0.5, 1 or 3 divisions 
Key zeroing range  2% or 100% of capacity 
Span calibration  5 lb /kg to 100% of capacity, user selectable 
Power  AC adapter with 100- hour internal rechargeable lead acid battery included 
Interface  Bi-directional RS232C
Operating temperature range  14°F to 104°F / -10°C to 40°C, Maximum relative humidity 80 % for temperatures up to 88°F / 31°C, decreasing linearly to 50 % relative humidity at 104°F / 40°C, non-condensing
 Net weight  26 lb / 12kg 42 lb / 19kg 71 lb / 32kg
Shipping weight  33 lb / 15kg 51 lb / 23 kg 82 lb / 37 kg
Shipping dimensions (mm) 25.3 × 19.6 × 8.5 in / 642 × 497 × 212 33.7 × 22.2 × 8.9 in / 857 × 564 × 225 40.2 × 27 × 9.7 in / 1022 × 687 × 247

 

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