Food contact checkweigher CW-90

for hygienic applicationsfor checkweighersfor industrial applications

Overview
Rice Lake's CW-90 checkweigher is engineered to accelerate in-line weighing and minimize production downtime. Its user-friendly front keypad, real-time data capture and rugged 304 stainless steel construction (IP66) make the CW-90 suitable for operators, quality control and maintenance teams in light industrial environments.

Key features

• Membrane keypad with keys: zero, units, print, tare, over, under, ID, target, 0-9, clear, decimal, enter, menu, power
• 304 stainless steel, IP66 rated indicator
• PreVent™ breather vent
• Storage for up to 50 IDs
• Units: kg, g, lb, oz, lb/oz (lb/oz not Legal for Trade)
• High-intensity LED display (0.8 in, 14-segment, six-digit)
• Battery-backed time and date
• Two full-duplex RS-232 serial ports (standard)
• Configurable print formats and audit trail tracking
• Optional communications: Ethernet, USB or fiber optic
• Four configurable digital I/O channels
• Reflash memory for firmware upgrades

Scale

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

Product description
The CW-90 is designed to speed weighing operations and reduce production interruptions. The front-access keypad and configuration menu remove the need to open the rear of the indicator, reducing exposure to moisture and contaminants. Access to keypad functions can be restricted by user level. The unit stores detailed data for up to 50 IDs and features an adjustable-contrast display readable in varied environments. Over/under LED lights (red = underweight, yellow = over, green = target) provide clear in-line status and help error-proof production.

Approvals / Certifications

• NTEP CC 08-092, Class III/IIIL 10,000 d (Indicator)
• Measurement Canada AM-5710, Class III 10,000 d (Indicator)
• OIML R76/2006 (Indicator)
• NTEP CC 95-072, Class III 5,000 d (Scale)
• Measurement Canada AM-5082, Class III 5,000 d (Scale)
• NSF; UL and CUL listed; CE marked

Detailed specifications (table)
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
Status Annunciators:
Designators for %, kg, gm, lb, oz, center of zero, G/B, N, T, PT, neg, motion
Operating Temperature:
Legal: -10°C to 40°C (14°F to 104°F)
Rating/Material:
IP66, stainless steel
Display Resolution:
100,000 graduations maximum
Load Cell:
Aluminum, environmentally sealed
Warranty:
Two-year limited warranty

Technical specifications

• Model: CW-90
• Construction: 304 stainless steel indicator, IP66 rated
• Keypad: Membrane keypad with numeric and function keys
• Display: High-intensity LED, 0.8 in, 14-segment, six-digit
• Stored IDs: Up to 50 IDs
• Units: kg, g, lb, oz, lb/oz (lb/oz not Legal for Trade)
• Communications: Two full-duplex RS-232 standard; optional Ethernet, USB, fiber optic
• I/O: Four configurable digital I/O channels
• Memory: Reflash memory for firmware upgrades
• Load cell: Aluminum, environmentally sealed; five-point overload protection
• Environmental: Operating (legal) -10°C to 40°C (14°F to 104°F)
• Resolution: Up to 100,000 graduations
• Measurement rates: Up to 960 readings/sec (configurable down to 7.5/sec)
• Power: 115/230 VAC, 50/60 Hz; consumption ~8 W
• Certifications: NTEP, Measurement Canada, OIML, NSF, UL/CUL, CE (model-dependent)
• Warranty: Two-year limited warranty