Bench scale for production, packaging, and general industrial check weighing applications

Bench Scales

Advanced Checkweighing Bench Scale

Ohaus - CKW

Provides with quick set-up of targets and full configurability

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Model : CKW3R71XW

Capacity x Enhanced Readability: 6 lb × 0.001 lb / 96 oz × 0.02 oz / 6 lb × 0.02 oz / 3 kg × 0.5g
Maximum Displayed Resolution: 1:6,000
Capacity × Approvable Readability: 6 lb × 0.002 lb / 96 oz × 0.05 oz / 3 kg × 0.001 kg
Approval Resolution: 1:3,000

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Model : CKW6R71XW

Capacity x Enhanced Readability: 15 lb × 0.002 lb / 240 oz × 0.05 oz / 16 lb × 0.05 oz / 6 kg × 1 g
Maximum Displayed Resolution: 1:7,500
Capacity × Approvable Readability:
15 lb × 0.005 lb / 240 oz × 0.1 oz / 6 kg × 0.002 kg
Approval Resolution: 1:3,000

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Model : CKW15L71XW

Capacity x Enhanced Readability: 30 lb × 0.005 lb / 480 oz × 0.1 oz / 30 lb × 0.1 oz / 15 kg × 2 g
Maximum Displayed Resolution: 1:7,500
Capacity × Approvable Readability: 30 lb × 0.01 lb / 480 oz × 0.2 oz / 15 kg × 0.005 kg
Approval Resolution: 1:3,000

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Model : CKW30L71XW

Capacity x Enhanced Readability: 60 lb × 0.01 lb / 960 oz × 0.2 oz / 60 lb × 0.2 oz / 30 kg × 5 g
Maximum Displayed Resolution: 1:6,000
Capacity × Approvable Readability: 60 lb × 0.02 lb / 960 oz × 0.5 oz / 30 kg × 0.01 kg
Approval Resolution: 1:3,000

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The OHAUS CKW Checkweighing Scale—Speed, Durability, and Cleanliness

Combining an NSF-certified and USDA-accepted food-safe base, durable stainless steel construction, and industry-leading software, the OHAUS CKW Series includes fully-dedicated check weighing scales built for applications requiring fast and accurate operation.

The OHAUS CKW Series is a feature-rich line of check weighing scales, combining a stainless steel T71XW indicator with a square, all-stainless steel CKW washdown base, and a stainless steel column. Ideal for production, packaging, and general industrial check weighing applications, the CKW offers a multifunctional indicator with multiple weighing units, an alphanumeric keypad, and software modes to meet the requirements of industrial applications. With rugged construction, comprehensive yet intuitive software, and multiple connectivity options, the CKW can meet the needs of demanding industrial operations.

The OHAUS CKW Series base is engineered for static check weighing operations and other bench weighing applications—from general purpose to washdown. With its easy-to-clean design built for food safety conformance and rigid stainless steel construction, the CKW Series scale base is ideally suited for use in industrial environments. It’s designed for simplicity and dependability, which contributes to increased productivity, security, and lower cost of ownership.

Features:

Precision Resolution: 1:6000-7500 maximum, certified 1:3000
All Stainless Steel Construction: Removable stainless steel platform with an extended skirt and open frame, stainless steel IP66 indicator, and IP67 load cell
Food Safe Design: NSF listed/certified to NSF/ANSI 169-2005 (formerly NSF C-2) and USDA-AMS accepted to NSF/3-A 14159-1; supports HACCP compliance
Employs 6 down stops to ensure safe overload protection
Four adjustable non-slip rubber feet
Compact footprint and weighing area
All stainless steel construction with IP66 / NEMA4X protection for indicator, with load cells protected to IP67
Default resolution of 6,000 to 7,500 days - NTEP resolution / Measurement Canada 1: 3,000 certified / approved
Configurable check weighing alerts with a display of results using the LCD display and red/yellow/green LEDs.
The audible beeper can be configured to prompt when weight is within range, under, over, or under or over range.
Target values can be displayed at any time using a quick key press.
Easy to operate with positive feedback 5-function key and alphanumeric membrane keypad
Additional weighing modes for Counting, Percent Weighing, Dynamic/Animal Weighing, and Display Hold.
128 item Library data storage function, Accumulation of results with statistics.
Operator lock-outs for configuration menu as well as keys.
Internal power supply with universal line cord—optional NiMH internal rechargeable power pack available
Includes RS-232 interface with GMP/GLP data output including date and time
Options include DC relay control kit, AC relay control kit, RS-485/422 and 2nd RS-232 interfaces,
Alibi memory module.

Applications

Weighing, Parts Counting, Percent Weighing, Checkweighing, Dynamic/Animal Weighing, Accumulation,

Display

Hold Display Backlit liquid crystal display (LCD) with secondary information line, 3-color check weighing LEDs

Operation

AC power (included) or rechargeable battery (accessory sold separately)

Communication

Easy access communication port including RS232 (included) and second RS232 or RS422/RS485 (sold separately as an accessory.) GLP/GMP data output with Real-Time Clock.

Construction

NEMA 4X/IP66 stainless steel indicator, 304-grade stainless steel platform with no visible threads, rounded corners, drain holes, extended skirt and open frame, IP67 stainless steel load cell, stainless steel column, and wall bracket, level indicator

Design Features

User-configurable resolution up to 7,500d/3,000e, 128 part library, 3-color check weighing LEDS, beeper, alibi memory kit (sold separately as an accessory),150% overload capacity protection, five operating languages, NTEP-certified and Measurement Canada approved.

Model	CKW3R71XW	CKW6R71XW	CKW15L71XW	CKW30L71XW
Capacity (max) × Enhanced Readability	6 lb × 0.001 lb 96 oz × 0.02 oz 6 lb × 0.02 oz 3 kg × 0.5g	15 lb × 0.002 lb 240 oz × 0.05 oz 16 lb × 0.05 oz 6 kg × 1 g	30 lb × 0.005 lb 480 oz × 0.1 oz 30 lb × 0.1 oz 15 kg × 2 g	60 lb × 0.01 lb 960 oz × 0.2 oz 60 lb × 0.2 oz 30 kg × 5 g
Maximum Displayed Resolution	1:6,000	1:7,500	1:7,500	1:6,000
Capacity (max) × Approvable Readability	6 lb × 0.002 lb 96 oz × 0.05 oz 3 kg × 0.001 kg	15 lb × 0.005 lb 240 oz × 0.1 oz 6 kg × 0.002 kg	30 lb × 0.01 lb 480 oz × 0.2 oz 15 kg × 0.005 kg	60 lb × 0.02 lb 960 oz × 0.5 oz 30 kg × 0.01 kg
Approval Resolution	1:3,000	1:3,000	1:3,000	1:3,000
Platform Dimensions (W × D × H)	10 × 10 × 2.3 in. / 254 × 254 × 57.5 mm		12 × 12 × 2.3 in. / 305 × 305 × 57.5 mm	12 × 12 × 2.7 in. / 305 × 305 × 69.5 mm
Load Cell Capacity	6 kg	10 kg	30 kg	50 kg
Safe Overload Capacity	150% of rated capacity
Protection	NEMA 4X/IP66 for indicator, IP67 for loadcell
Column	Tubular 304 Stainless Steel 300 mm / 11.8 in. Fixed Height
Weighing Units	lb, oz, lb:oz, kg, g, custom unit
Modes	Weighing, Checkweighing, Counting, % Weighing, Dynamic Weighing/Display Hold
Weight Display	Dual line display with 25 mm / 1 inch high primary digits, white LED backlight
Checkweigh Indication	Green, yellow, red LEDs for OK, Underweight and Overweight
Keyboard	Positive feedback membrane keys, 5 function keys and alphanumeric keypad
Stabilization Time	Within 2 seconds
Auto-zero Tracking	Off, 0.5, 1 or 3 d
Zeroing Range	2% or 100% of capacity
Span Calibration	Span: 1 kg or 1 lb to 100% of capacity / Linearity: 3 or 5 point
Power	100-240 VAC / 50-60Hz internal universal power supply with hardwired cord
Operating Temperature Range	14 °F to 104 °F / -10 °C to 40 °C
Interface	Bidirectional RS-232 and external tare input
Net Weight	19.8 lb / 9 kg	22.1 lb / 10 kg	26.5 lb / 12 kg	28.7 lb / 13 kg
Shipping Dimensions (W × D × H)	19.1 × 15.3 × 16.1 in. / 485 × 390 × 410 mm
Shipping Weight	26.5 lb / 12 kg	28.7 lb / 13 kg	33.1 lb / 15 kg	35.3 lb / 16 kg