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Ohaus CKW Checkweighing Scale

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Easy to Clean and Easy to Use!

The Ohaus CKW Series of bench scales are dedicated checkweighing scales built for applications requiring fast and accurate operation. Designed with the operator in mind, the Ohaus CKW checkweighing scales are easy to operate, but allow full configuration to match different checkweighing procedures. Combining a USDA approved food-safe design, durable stainless steel construction, and industry-leading software, the Ohaus CKW is the right scale for your checkweighing needs!

Ohaus CKW Checkweighing Scale

Ohaus CKW Checkweighing Scale

FREE UPS Ground Shipping
(within the 48 continental US States)


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Shipping Weight: 25 lbs

Standard features include:

  • Washdown Protection: All Stainless Steel construction with IP66/NEMA 4X indicator and IP67 load cell
  • Food Safe Design: NSF C-2 listed/certified, USDA/AMS accepted for food use, supports HACCP-certified systems
  • Checkweighing Setpoint Configurability: Set targets by range, variance by weight or percent
  • Multiple Checkweighing Methods: Positive checkweighing into a container, negative checkweighing out of a container, net checkweighing for sorting and grading applications
  • Fully Configurable Checkweighing Displays: Programmable Red/Yellow/Green LED graphical display bar with selectable LED over/under/accept display
  • Fast and Simple Target Entry: Dedicated Target key and numeric keypad make setting checkweighing setpoints easy.
  • Software and Hardware Lockouts: The CKW can be quickly locked so that operators cannot accidentally change targets and settings.
  • Selectable units: lb, oz, combined lb:oz display, % of target, kg, g
  • Library Function: 20-SKU library with SKU no., over, under, target, tare values
  • Connectivity: Configurable external input, RS232 bi-directional port included with GMP/GLP data outputs for traceability requirements. Optional DC Relay Kit, AC Relay Kit, RS422/485 Kit.
  • Approvals: OIML R76 Class III and EC Type Approval.NTEP Class III (pending) and Measurement Canada Class III (pending) for legal-for-trade applications








Price $1175.20
CKW3R55 - buy it now
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CKW30L55 - buy it now

Capacity x Readability

(Maximum Displayed Resolution)

3 kg x 0.5 g

6 lb x 0.001 lb

96 oz x 0.02 oz

6 kg x 1 g

15 lb x 0.002 lb

240 oz x 0.05 oz

15 kg x 2 g

30 lb x 0.005 lb

480 oz x 0.1 oz

30 kg x 5 g

60 lb x 0.01 lb

960 oz x 0.2 oz

Safe overload capacity

150% of rated capacity

Weighing units

lb, kg, g, oz, lb:oz, %

Over range capacity

Maximum capacity + 9d

Stabilization time

within 2 seconds

Auto-zero tracking capture range

OFF, 0.5, 1, or 3 divisions

Zeroing range

2%, 18%, or 100% of capacity


6-digit 7-segment single LED weight display with 24-segment target LED bar graph


AC or optional internal rechargeable NiMH battery


7-function keys, numeric keypad

Operating temperature

14° F to 104° F / -10° C to 40° C, 10% to 95% relative humidity

Base dimensions (W x D x min H)

10” x 10” x 3.5”

254 x 254 x 89 mm

12” x 12” x 3.5”

305 x 305 x 89 mm

12” x 12” x 4”

305 x 305 x 101 mm

Column height - stainless steel

287.5 mm / 11"

Warranty 1 year Ohaus warranty







Standard Features

Stainless steel frame with IP-67 loadcell, IP-66/NEMA4X stainless steel indicator with water-tight wiring pass-throughs, removable stainless steel platform, bright LED display with 24 segment high-contrast checkweighing LEDs, user-adjustable rubber leveling feet, leveling bubble, hardwired internal universal switching power adapter, user-configurable external remote input, user-configurable RS232 interface with GMP/GLP output featuring time/date, indication for weight/mode/stability/center of zero/net weight/tare weight/unit, dedicated tare key, audible beeper with user-selectable volume control, sealable scale configuration and calibration lockout switch.

Operational Features

Configurable checkweighing mode with selectable checkweigh display, one-key target entry, 20-part library with fields for SKU/over value/target value/under value/tare weight, selectable environmental averaging settings, LED brightness control, selectable weighing units, configurable software lockout menu, configurable scale auto-off, adjustable span or linearity calibration in kg or lb unit with optional external masses, semi-automatic or automatic tare, adjustable auto-zero tracking, adjustable zeroing range.


  • Food Service: NSF Listed/Certified to NSF C-2 -- Special Equipment and/or Devices (Food Service Equipment); USDA/AMS Accepted to NSF/3-A 14159-1-2002 (Hygiene Requirements for the Design of Meat and Poultry Processing Equipment); meets requirements for HACCP conformity.
  • Electrical/Emissions: UL, FCC Class B Part 15 operation, Industry Canada Class B, CE EN60950, EN55022, EN50082-1, EN61326.

Quality: Ohaus quality management system registered to ISO 9001:2000 by BVQI Specifications

Ohaus CKW Checkweighing Scale Base

Ohaus CKW Checkweighing Scale Base

Ohaus CKW Checkweighing Scale Frame

Ohaus CKW Checkweighing Scale Frame

Optional Accessories



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