CKW Series The OHAUS CKW Checkweighing Scale—Speed, Durability and Cleanliness SUPPORTS HACCP COMPLIANCE

CKW Series The OHAUS CKW Checkweighing Scale—Speed, Durability and Cleanliness SUPPORTS HACCP COMPLIANCE
CKW Series
Checkweighing Scale
SUPPORTS HACCP
COMPLIANCE
The OHAUS CKW Checkweighing Scale—Speed, Durability and Cleanliness
The OHAUS CKW Series Scale models are engineered for static checkweighing 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 scales are ideally
suited for use in industrial environments. Its configurability and construction were designed for simplicity
and dependability, resulting in increased productivity, security and lower cost of ownership.
Standard Features Include:
• Precision Resolution: 1:6000-7500 maximum, NTEP 1:3000
• All Stainless Steel Construction: Removable stainless steel platform with 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
• Checkweighing Setpoint Configurability: Set targets by Range, Variance by Weight or Percent
• Checkweighing Indications: 3-color 24-segment bar graph, Beeper Alert, Weight Display Alert
• Checkweighing Methods: Positive, Negative (Take-out), Zero or Net Checkweighing
• 20 Part Library Storage: Store information on Item ID No., Over, Under, Target
and Pre-set Tare Values
• Statistical Function: Includes accumulation with number of weighments,
Average and Standard Deviation
CKW Series
Checkweighing Scale
Designed for fast configuration, ease of use and speedy cleaning:
• Precision Resolution — The CKW Checkweigher features 1:6000 or 1:7500 maximum displayed readability with display speeds
of 2 seconds or under. For legal-for-trade use, the CKW Checkweigher supports NTEP 1:3,000 operation.
• Fast Target Entry — The CKW Checkweigher features a dedicated Target key and numeric keypad, allowing fast entry of
checkweighing setpoint values.
• Checkweigh Your Way — The CKW can be configured to checkweigh to meet your operational needs:
> Positive checkweighing for portioning and pre-packing
> Negative checkweighing for portioning out of boxes and other containers
> Zero (or Net) Checkweighing for sorting and grading operations
> Target tolerances can be set as weight values or as %
> The CKW Checkweigher can be set-up to tare the weight of containers using the dedicated Tare key on the indicator,
automatically using the Auto-Tare software and/or using an external input like a footswitch (also available from OHAUS).
> The CKW Checkweigher can be set-up in one or more weighing units: lb, oz, lb:oz, g, kg or % of target weight.
The CKW Checkweigher can also be set-up to alert your operators your way:
> The tri-color LED bar graph can be set-up to display each of the 24 segments individually, by color block (yellow,
green and red), as a continuous bar, scaled to the capacity of the target weight, or it can be turned off.
> The LED weight display can also be programmed to show a checkweigh indication of “over”, “under” or “accept”, or it
can be turned off so no weight is displayed at all.
> The CKW Checkweigher has a configurable audible beeper with selectable volume.
> The CKW Checkweigher can drive external devices — such as light bars — using the optional External Relay kit.
• Operator Lock-Out — Once the CKW Checkweigher is configured to your needs, it can be locked so that operators cannot
accidentally change targets and settings.
• Food-Safe Design — Built from food-safe stainless steel, the CKW Checkweigher includes an IP66/NEMA4X indicator, a base
with an open framework that is designed for cleaning in washdown environments. Each base has rounded corners, an external
platform skirt and drain holes to prevent accumulation of matter on the frame. The CKW Checkweigher is NSF listed and
USDA-AMS certified — a design that supports HACCP systems.
• Traceability and Connectivity — The CKW Checkweigher can provide GMP/GLP data (including time, date, and scale ID) for
traceability using the configurable bi-directional RS232 (included), or can be connected to systems using an optional
RS485/422 interface.
Special Features
No Threads Visible
Assures conformance to Food
Safety standards and minimized
contamination areas.
CKW15L Dimensions (inches)
Internal Hinge Mechanism
Easy access for option installation
and servicing
See spec table (back page) for
other CKW platform dimensions.
OHAUS CKW Productivity Features
Bar Graph
Configurable 3-color, 24-segment
Checkweighing bar graph
Washdown Design
Stainless steel NEMA 4X / IP66
washdown enclosure
Internal Label Slot
Selectable Display Control
Adjustable-brightness LED display;
configurable to blank out, or flash
within selected checkweigh conditions
Numeric Keypad
Dedicated Checkweighing
Setpoint Entry Key
Entry by Range, Weight or
Percent Variance from Target
Quick Stabilization
Display stable weight under 2 seconds
Function Lockouts
Software and Hardware Lockouts
to prevent tampering of settings
Multiple Weighing Units
Weigh in: kg, g, lb, oz, lb:oz, %
Negative Value Entry
Allows for Negative and Zero
or Net checkweighing
Power Supply
100-240 VAC Universal power supply;
optional rechargeable NiMH battery
Audible Alert
Configurable volume beeper alert within
selected checkweighing conditions
Connectivity
RS232, External Input;
optional RS422/485,
AC/DC Relay Output kits
Other Features:
Auto-Tare, Auto-Tare on Accept,
configurable data output,
Accumulation with Average
and Standard Deviation
Adjustable Indicator
Maximizes viewing angle
Stainless Steel Column
Hollow to minimize food traps
Easy Setup
Menu navigation callouts simplifies user setup
Overload Protection
Employs 6 down
stops to ensure safe
overload protection
Stainless Steel Platform
304 stainless steel
platform and frame
ensures durability and
cleanability
Space-Saver
Compact footprint
and weighing area
(10x10˝ or 12x12˝ )
contribute to work
space efficiency
Added Protection
Extended wrap-around
platform skirt minimizes
entry of water and
contamination into the
frame; added protection
for the IP67 load cell
Non-Slip Feet
4 adjustable
non-slip
rubber feet
Accessories and Options
• Foot Tare Switch
• Rechargeable NiMH Battery
• RS422/485 Kit
• Rechargeable NiMH
Battery Kit
• DC Relay Kit
• Wall Bracket Kit
• AC Relay Kit
CKW Series
Maximum Displayed Resolution
NTEP Capacity (max) x
Approvable Readability (e)
Approval Resolution
Platform Dimensions
(WxDxH)
Load Cell Capacity
CKW3R55
6 lb x .001 lb
96 oz x 0.02 oz
3 kg x 0.5g
1:6000
6 lb x 0.002 lb
96 oz x 0.05 oz
3 kg x 1 g
1:3000
6 kg
CKW6R55
15 lb x .002 lb
240 oz x 0.05 oz
6 kg x 1 g
1:7500
15 lb x 0.005 lb
240 oz x 0.1 oz
6 kg x 2 g
1:3000
10 x 10 x 2.3˝ /
254 x 254 x 57.5 mm
10 kg
Safe Overload Capacity
Load Cell: IP67, Indicator: NEMA 4X / IP66
Tubular 304 Stainless Steel 300 mm / 11.8˝ Fixed Height with Indicator and Base Mounting Brackets
Weighing Units
Weight Display
Checkweigh Indication
Keyboard
kg, lb, g, oz, lb:oz, %
3
/4˝ / 20 mm High 6-digit, 7-segment LED
24-segment LED (3 color x 8) Bar Graph, Audible Beeper and LED Display with Multiple User Setups
Numeric, 7 Function keys with dedicated Tare and Target Entry Buttons, Raised Tactile Membrane Switch
Stabilization Time
Within 2 Seconds
Auto-zero Tracking
Off, .5, 1 or 3 Divisions
Zeroing Range
2%, 18% or 100% of Capacity
Span Calibration
Power
1 lb / kg to 100% of Capacity
100-240 VAC/50-60Hz Universal Power Supply with Hardwired Cord/Optional:Internal Rechargeable NiMH Battery(10-hour life)
Interface
Built-in RS232 and External Remote Input / Optional: RS485/422, Relay Output
Operating Temperature Range
Net Weight
Shipping Dimensions
(WxDxH)
Shipping Weight
CKW30L55
60 lb x .01 lb
960 oz x 0.2 oz
30 kg x 5 g
1:6000
60 lb x 0.02 lb
960 oz x 0.5 oz
30 kg x 10 g
1:3000
12 x 12 x 2.7˝ /
305 x 305 x 69.5 mm
50 kg
150% of rated capacity
Protection
Column
CKW15L55
30 lb x .005 lb
480 oz x 0.1 oz
15 kg x 2 g
1:7500
30 lb x 0.01 lb
480 oz x 0.2 oz
15 kg x 5 g
1:3000
12 x 12 x 2.3˝ /
305 x 305 x 57.5 mm
30 kg
14°F to 104°F / -10°C to 40°C
19.2 lb / 8.7 kg
21.6 lb / 9.8 kg
26.2 lb / 11.9 kg
28.4 lb / 12.9 kg
19.1 x 15.3 x 16.1 in /
485 x 390 x 410 mm
19.1 x 15.3 x 16.1 in /
485 x 390 x 410 mm
19.1 x 15.3 x 16.1 in /
485 x 390 x 410 mm
19.1 x 15.3 x 16.1 in /
485 x 390 x 410 mm
24.7 lb / 11.2 kg
27.1 lb / 12.3 kg
32.0 lb / 14.5 kg
34.2 lb / 15.5 kg
Physical Features
Base features stainless steel frame and loadcell, removable stainless steel platform, stainless steel indicator mounting
column, rubber user-adjustable leveling feet and externally-visible leveling bubble, and overload stops to protect loadcell.
Indicator constructed of stainless steel and features hinged front panel for improved access during optional installation.
Large LED weight display and configurable 24 segment high-contrast checkweighing LED's with brightness controls and
power saving options. Audible beeper and key beep with selectable volume control. On-display annunciators for weight,
mode, scale stability, center of zero, net weight, tare weight and unit. Numeric keypad, dedicated keys for Tare and setting
Target values. Configurable external remote input, configurable RS232 interface. Hardwired internal universal switching
power adapter with power saving modes, optional internal NiMH battery with on-screen low battery display and LED
segment battery charging indication. Sealable scale configuration and calibration lockout switch.
Operational Features
General operation with selectable weighing units, semi-automatic or automatic tare, configurable software setup and
keypad lockout, configurable scale auto-off, adjustable auto-zero tracking, selectable retain zero data on power off,
adjustable zeroing range, choice of display graduations, selectable environmental averaging settings, LED brightness
control and beeper volume control. Configurable checkweighing mode with selectable displays and alerts, one-key target
entry, 20 memory Library function with fields for SKU/over value/target value/under value/tare weight. Accumulation
software with display of total number of weighments, total weight accumulated, average weight, standard deviation of
weighments. Geo Factor calibration gravity adjustment, adjustable span or linearity calibration in kg or lb unit with optional
external masses, user-selectable calibration software, calibration test mode. Selectable print settings and output, including
output of menu settings or library data and configurable print commands for print, tare and zero operations. GMP/GLP
output with time, date, user id, project id, scale id and scale name. Selectable scale address (0 to 99) with RS485 option
for systems integration.
Approvals/Listings/Certifications
• Food Processing and Service: NSF Listed/Certified to NSF/ANSI 169-2005 Special Purpose Food Equipment and
Devices (formerly NSF C-2); USDA/AMS Accepted to NSF/3-A 14159-1 Hygiene Requirements for the Design of Meat
and Poultry Processing Equipment; meets requirements for HACCP conformity
• Electrical/Emissions: cULus, FCC Class B, Industry Canada Class B, CE EN60950, EN55022, EN61326
• Legal-for-Trade: OIML R76 Class III and EC Type Approval. NTEP Certified
OHAUS CORPORATION
* 19A Chapin Road
P.O. Box 2033
Pine Brook, NJ 07058 USA
Tel: 800.672.7722
973.377.9000
Fax: 973.593.0359
www.ohaus.com
With offices throughout Europe,
Asia, and Latin America
80774388_A © Copyright OHAUS Corporation
Specifications
Capacity (max) x Enhanced
Readability (d)
Checkweighing Scale
* ISO 9001
Registered Quality Management System
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