CW-90 Over/Under Checkweigher

As of: Wednesday, July 30, 2025
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CW-90 Over/Under Checkweigher

Standard Features

  • Membrane keypad consisting of: zero, units, print, tare, over, under, ID, target, 0-9, clear, decimal, enter, menu, power
  • 304 stainless steel
  • PreVent™ breather vent
  • Storage for up to 50 IDs
  • Unit of measure: kg, g, lb, oz, lb/oz (lb/oz is not Legal for Trade)
  • High-intensity LED display
  • Battery backed time and date
  • Two full-duplex RS-232 serial ports
  • Configurable print formats
  • Audit trail tracking
  • Optional communications: Ethernet, USB or fiber optic
  • Four configurable Digital I/O
  • Auto-print capability
  • Accumulator
  • Factory calibrated

Scale

  • Aluminum, environmentally sealed load cell
  • 304 stainless steel
  • Meets HACCP requirements
  • Five-point overload protection

The Checkweigher of Choice

Rice Lake’s CW-90 checkweigher is designed to help speed up your weighing process and reduce production downtime, two critical factors to your company’s bottom line. Ease of use, real-time data collection, and rugged stainless steel construction make the CW-90 the equipment of choice for operators, quality control and maintenance departments. The CW-90 is competitively priced for all light industrial settings.

Easy to Configure

The configuration menu of the CW-90 is accessible through the front keypad, eliminating the need to open the back of the indicator and expose the unit to moisture or contaminants. Access to these keypad controls can be limited to meet the operator’s needs. The CW-90 will store detailed information for up to 50 separate IDs, allowing for easy recall of previously saved information. An adjustable contrast display is visible in any environment.

Simple to Maintain

The CW-90 has kept things simple to meet the needs of today’s lean manufacturers. Use this checkweigher by easily watching the over/under lights. Program the unit with specified weight limits and a red light will display an underweight condition, yellow for over, and green when a target weight is reached. Rice Lake’s CW-90 will help error-proof your production process and achieve your productivity goals

CW-90 Over/Under Checkweigher Specifications

Power AC:
Line Voltages: 115/230 VAC

Frequency: 50/60 Hz

Power Consumption:
1.5 A at 115 VAC (8 W)
0.75 A at 230 VAC (8 W)

Measurement Rate:
960, 480, 240, 120, 60, 30, 15, 7.5 per second

System Linearity:
±0.01% full scale

Digital I/O:
Four channels on CPU board

Circuit Protection:
RFI, EMI, ESD protection

Display:
Large 0.8 in, 14 segment, six digit high-intensity red LED display

Scale Frame:
AISI304L, straight line finish, Ra=45 ± 10

Scale Cover:
AISI304L, straight line finish, Ra=45 ± 10

Annunciators:
Designators for %, kg, gm, lb, oz, center of zero, G/B, N, T, PT, neg, motion

Temperature:
Certified: 14 °F to 104 °F (-10 °C to 40 °C)

Rating/Material:
IP66, stainless steel

Resolution:
Display: 100,000

Load Cell:
Aluminum, environmentally sealed

Warranty:
Two-year limited

Approvals:
Indicator:
NTEP 08-092, Class III/IIIL 10,000 d
Measurement Canada AM-5710, Class III 10,000 d
OIML R76/2006-GBI-10.02
EU Legal for Trade TC11569
CE Marked
cULus Listed

Scale:
NTEP 95-072, Class III 5,000 d
Measurement Canada AM-5082
NSF

CW-90 Over/Under Checkweigher Dimensions

Parts

Part # Description
115 VAC
105957 CKWGHER, CW90 10X10 5 lb/2.5 kg with 12 inch column 115VAC SST
105958 CKWGHER, CW90 10X10 10 lb/5 kg with 12 inch column 115VAC SST
105959 CKWGHER, CW90 10X10 25 lb/10 kg with 12 inch column 115VAC SST
105960 CKWGHER, CW90 12x12 25 lb/10 kg with 12 inch column 115VAC SST
105961 CKWGHER, CW90 12x12 50 lb/25 kg with 12 inch column 115VAC SST
105962 CKWGHER, CW90 12x12 100 lb/50 kg with 12 inch column 115VAC SST
230 VAC
118891 CKWGHER, CW90 10X10 5 lb/2.5 kg with 12 inch column 115-230VAC SST
118892 CKWGHER, CW90 10X10 10 lb/5 kg with 12 inch column 115-230VAC SST
118893 CKWGHER, CW90 10X10 25 lb/10 kg with 12 inch column 115-230VAC SST
118895 CKWGHER, CW90 12X12 25 lb/10 kg with 12 inch column 115-230VAC SST
118896 CKWGHER, CW90 12X12 50 lb/25 kg with 12 inch column 115-230VAC SST
118897 CKWGHER, CW90 12X12 100 lb/50 kg with 12 inch column 115-230VAC SST
230 VAC (CE marked/OIML approved)
106123 CKWGHER, CW90 254x254 mm 3 kg with 305mm column 230VAC SST European Version CE and OIML marked with European plug
106124 CKWGHER, CW90 254x254 mm 6 kg with 305mm column 230VAC SST European Version CE and OIML marked with European plug
106125 CKWGHER, CW90 254x254 mm 15 kg with 305mm column 230VAC SST European Version CE and OIML marked with European plug
106126 CKWGHER, CW90 305x305 mm 15 kg with 305mm column 230VAC SST European Version CE and OIML marked with European plug
106127 CKWGHER, CW90 305x305 mm 30 kg with 304mm column 230VAC SST European Version CE and OIML marked with European plug
106128 CKWGHER, CW90 305x305 mm 60 kg with 305mm column 230VAC SST European Version CE and OIML marked with European plug

Options

Part # Description
200578 Ind OPT,Ethernet Interface CW90, CW90X Straight through 10ft ethernet cable with PG11 cord grip
77142 Ind OPT,Ethernet Interface 720i, 820i, iQube, CW90, CW90X
206272 Ind Opt,Wireless LAN Card RS232/WiFi Interface 802.11 A/B 10/100 XPico for CW90,720i,iQube2
171968 Cable,RS-232 5-Wire DB-9F to stripped and tinned leads
96736 Ind Opt,Fiber-Optic Rx/Tx CW90, CW90X, 820i Internal Mount With Bus Power
78026 Cable,Plastic Optical 100 ft. includes polishing kit
80892 Cutter, Fiber Optic Disposable, .750 and 1.0mm single and duplex jacket Industrial Fiber Optics #IF-FC2
117358 Software, WeighVault for CW90/90X License (English)

Rice Lake 800-472-6703

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