CompuWeigh COMPUTERIZED WEIGHING SYSTEMS

PROCESS SCALE

Weigh Hopper with Cover Removed

Compact Hopper Scale System Do you need a scale that provides: Precision Accuracy High-speed Weighing Easy Setup and Operation Years of Trouble-free Service ...all in one compact design ...all at an affordable price

Typical 3-Hopper Scale with Cover Removed This low-cost, low-maintenance scale is ideal for obtaining accurate, reliable continuous weighing of dry bulk materials in capacities from 0.5 - 90 tons per hour. Three standard sizes are available to handle a wide variety of materials from grain, flour, rice, and screenings, to plastic, coke and cement. Key Benefits: Monitors inventory levels by weight (to calculate yields) in "real-time". Monitor regrind inventory on an ongoing basis. Inventory, temperature, and level monitoring, gate proper timing and man-machine interface. Versatile. Three standard sizes of 2.5, 5.0 and 10 cubic feet are available to handle to your specific throughput requirements. Accurate. Not only is the scale legal-for-trade, delivering 99.9% accuracy, but is also ideal for monitoring production, yields, and inventory. High Speed. The superior tension load cell design and high volume discharge gates provide fast cycling times of 10 - 15 seconds. For maximum throughput and continuous material flow, the system can be supplied with upper and lower hoppers. Simple. The scale is easy to set up and is shipped completely assembled, pre-tested, and ready for installation. No special training is required to operate the system. Reliable. Our precision design and fabrication gives you 24-hour/day operation even in the harshest environments. The fully enclosed design ensures dust-tight operation and is virtually maintenance-free. CompuWeigh Corporation is the largest producer of bulk-weighing scale controllers in the United States, manufacturing "legal-for-trade" computerized bulk-weighing equipment since 1978. Accuracy of 0.1% by weight is standard. Scale fabrication is available, with capacities ranging from 0.5 tonnes/hour to 90 tonnes/hour for in-process applications, to over 3,000 tonnes/hour for receiving and load-out applications of bulk and powdered materials including grains, plastics, flour, coffee beans, edible oils, rice, chemicals, and others.

The system can be supplied as a stand-alone weigh hopper or with upper and lower hoppers to increase throughput and maintain a continuous flow of material. The system can be easily modified to handle special applications. The Process Scale has the following components and features: NTEP Approved Legal-for-Trade Pneumatic Control Package Stainless Steel Weigh Hopper, Gates, and Cylinders 3 Stainless Steel S-Type Tension Load Cells Fully Enclosed for Dust-Tight Operation Manually Adjustable Flow-Limiter NEMA 4 Opto Control Box Painted Mild Steel External Housing and Access Doors Unit Shipped Fully Assembled, Wired, Piped, and Pre-tested Installation Requirements 80 - 110 PSI, clean, dry air, and 115 VAC 50/60 hz 1A supply (optional 230 VAC) Control Options The scale is designed to interface to a wide variety of Controllers, PLC's and Digital Weight Indicators. CompuWeigh's DWC-300 Weight Indicator is the perfect match for process scale control. For more demanding applications, other CompuWeigh Controllers are available.

Handling Capacity & Size
Hopper Size	Hopper Capacity	Maximum Throughput	Length	Width	Height (Weigh Hopper)	Height (Upper Hopper)	Height (Lower Hopper)
2.5 cu. ft.	185 lbs.	22 Tons/hr.	32"	28.5"	28"	28"	28"
5.0 cu. ft.	375 lbs.	22 Tons/hr.	32"	28.5"	41"	41"	41"
10.0 cu. ft.	750 lbs.	22 Tons/hr.	32"	38.5"	40"	40"	40"

Note: Handling capacity depends on density of the material, flow characteristics, and the external material handling equipment. Throughput above based on 75 lb./cu. ft. material.

Available Options Stainless Steel Upper & Lower Hoppers Remote Security / Summary Printer Equipment Automation Custom Design Hazardous Location Upgrade Wear-Resistant Liners Hydraulic Operation Higher Capacities

PROCESS CONTROL

Introduction Batching processes (BATCH IN/OUT and DRAFT RCV/SHP) are user programmable, allowing the operator to sequence up to 50 command files that define the functions to be executed can be entered in one of two ways; either by using the "fast keys" or by entering the numeric code for the desired process function (Refer to Section 4 for details on selecting and entering command files). When a list of command files is entered into a selected BATCH mode, the sequence becomes the batch file for that particular mode. In the normal running mode, the batch file is initiated by pressing the "START/STOP" key. The DWC-300 will then execute the batching file in the sequence in which the command files were programmed.

Operating and Technical Manual for the DWC-300

Batch Command Files Batch In Mode 1 CLR TOTAL (05-10) ;CLEAR BATCH TOTAL 2 GROSS (09-01) ;SELECT GROSS DISPLAY. 3 PRINT (07-01) ;PRINT THE GROSS WEIGHT. 4 SETPT 1* (04-01) ;SETPOINT 1 MACRO.\ 5 SETPT 2* (04-02) ;SETPOINT 2 MACRO.| IN MACROS 6 SETPT 3* (04-03) ;SETPOINT 3 MACRO.| ACQUIRES 7 SETPT 4* (04-04) ;SETPOINT 4 MACRO.> INGRED. 8 SETPT 5* (04-05) ;SETPOINT 5 MACRO. | TOTALS & 9 SETPT 6* (04-06) ;SETPOINT 6 MACRO.| BATCH TL. 10 SETPT 7* (04-07) ;SETPOINT 7 MACRO./ 11 PRN BTTL (07-07) ;PRINT BATCH TOTAL 12 GRAND TL (05-11) ;ADD "BAT. TOTAL" TO GRAND TL 13 PRN GRTL (07-08) ;PRINT GRAND TOTAL 14 DISCHRGE (03-09) ;DISCHARGE COMMAND 15 END (00-03) ;END BATCH PROGRAM   Batch Out Mode 1 CLR TOTAL (05-10) ;CLEAR BATCH TOTAL 2 GROSS (09-01) ;SELECT GROSS MODE. 3 PRINT (07-01) ;PRINT THE GROSS WEIGHT. 4 CLR CT (08-02) ;CLEAR COUNTER 5 IF NULL (13-02) ;SET FOR CONTINUOUS BATCH LOOP (CMD 5 - 15) 6 IF ALARM (13-07) ;CHECKS IF GR. WT. < LO ALARM. IF OK GO TO CMD 13 7 TARE (02-01) ;TARE (GET REF FOR TOTAL 2) 8 SETPT 2 (03-02) ;REFILL TO SETPT 2 (GROSS) 9 DELAY 2 (06-02) ;DELAY 2 10 NET (07-03) ;NET MODE 11 TOTAL 2 (05-02) ;ADD RECEUVED WT (NET) 12 IF END (13-01) ;END OF "IF ALARM" LOOP 13 SETPT1* (04-01) ;SETPOINT 1 MACRO (NET) 14 PRN TTLS (07-06) ;PRINT TOTALS 15 COUNT (08-01) ;INCREMENT COUNTER 16 IF END (13-01) ;END OF "IF NULL" LOOP (RET TO CMD 5) 17 END (00-03) ;END BATCH PROGRAM *Program will run a BATCH OUT (setpt1) loop until a manual stop is entered. Each discharge (stpt1) is added to the ingredient totalizer (TOTAL 1) and the batch totalizer (TOTAL). The batch total (TOTAL) is cleared at the start of a batch.

For more information, contact:

jhmenge@jhmenge.com

Post Office Box 23602
New Orleans, Louisiana  70183-0602

Louisiana:  1-504-733-4871; 1-504-734-1880 FAX Texas:  1-713-224-9750; 1-713-224-2711 FAX Please direct errata to our webmasters.