Cardinal ® OPERATION MANUAL MSB-25 Series 25 Pound Capacity Counter Type Electronic Scale 8540-M222-O1 Rev C 07/10 © Cardinal Scale Manufacturing Company P.O. Box 151, Webb City, MO 64870 PH: (417) 673-4631 Printed In U.S.A.
TABLE OF CONTENTS PART 1 1.1 1.2 1.3 1.4 1.5 Description Introduction Purpose Description of scale Principles of operation Precautions PART 2 Specifications PART 3 3.1 3.2 3.3 3.4 Unpacking, Installation and Preparation for use Unpacking Placement Level adjustment Power supply connection PART 4 4.1 4.2 4.3 4.4 Operation Key functions LED indicator functions Operation: weighing, sampling and counting Test mode PART 5 Calibration PART 6 6.1 6.2 6.
1.0 DESCRIPTION 1.1 Introduction This manual provides descriptive data, specifications, operating instructions, calibration procedures, care and maintenance instructions and information on interchangeable parts for the Detecto model MSB-25 scale. This scale is manufactured by Detecto Scale Co., Webb City, MO 64870. 1.2 Purpose This scale is designed for the following functions: 1. General purpose weighing of mailable objects up to 25 pounds in weight. 2.
2.0 SPECIFICATIONS Power requirements: 110/120 VAC, 60 Hz Count capacity: 999,999 Weight resolution: 1 part in 8,000 Computing resolution: 1 part in 16 x 106 with floating decimal Dimensions: 5" H x 17" W x 21" D Weight: 28 lb Operating temperature: 32° F - 104° F (0° C - 40° C) Weighing accuracy: This equipment is manufactured in accordance with the recommendations set forth by Handbook #44, issued by the United States Department of Commerce, National Insitute of Standards and Technology.
3.0 UNPACKING, INSTALLATION AND PREPARATION FOR USE 3.1 UNPACKING Inspect the scale for any signs of damage due to shipping such as loose screws or exterior dents and scratches on the covers and case. Keep carton and packing for return shipment of scale if necessary. It is the responsibility of the purchaser to file all claims for any damages or loss in transit incurred, unless this responsibility has been accepted by the Seller in its proposal. 3.
3.4 POWER SUPPLY CONNECTION 3.4.1 Plug power cord into a grounded, 3-pronged wall receptacle that supplies 115 VAC power. If an extension cord must be used, it should be a 3-wire, grounded type. 3.4.2 If a 2-pronged wall receptacle is encountered, it is the responsibility of the customer to contact a qualified electrician to replace the 2-pronged receptacle with a properly grounded 3-pronged wall receptacle or to have a grounding adapter properly installed.
4.0 OPERATION CAUTION!!! - Dropping packages weighing more than 3 pounds onto the scale platform can cause permanent damage to the load cell. 4.1 KEY FUNCTIONS This section describes the use of each of the keys on the keypad of the MSB-25 Scale. The TARE key is used to enter a known tare (container) weight via the numeric keypad. Pressing the TARE key will display zeros or the previously entered tare (if any) and illuminate the TARE annunciator.
KEY FUNCTIONS, Cont. SAM PLE The SAMPLE key is used to weigh a specific number of pieces to be added to or removed from the scale in preparation for a new counting operation. The SAMPLE key is also used to change the sample quantity. Pressing the SAMPLE key repeatedly will cause the sample size to step in multiples of 10 from 10 to 250. In this manner sample quantities other than the first one requested by the instrument may be used for counting operations.
KEY FUNCTIONS, Cont. CLEAR lb The CLEAR key is used to erase an erroneous entry, and return the cursor back to the first character in the entry field. The lb key is used to select the mode whereby weights are to be displayed in decimal pounds format, pp.ppp pounds. The lb annunciator LED will illuminate. lb-oz The lb-oz key is used to select the mode whereby weights are to be displayed in pounds-ounces format, pp pounds oo.oo ounces. The lb-oz annunciator LED will illuminate.
4.2 LED INDICATOR FUNCTIONS The following describes the functions of each of the LED indicators and associated legends contained on the face of the instrument display. MOTION ZERO lb GROSS SAMPLE lb - oz NET TARE COUNT WT/PC PC/WT NET The NET indicator shows the weight displayed is the net weight. Net weight is determined by subtracting the stored tare weight from the gross or scale weight. The tare weight, usually the weight of the empty container, is entered using the tare operation key.
INDICATOR FUNCTIONS, Cont. COUNT The COUNT indicator shows that the display is in the count mode, and that the value shown is the count quantity of either the pieces removed from the scale platform (reverse counting) or the number of pieces added to the scale platform (normal counting). The count value is determined by dividing the net weight by the average piece weight.
4.3 OPERATION: WEIGHING, SAMPLING AND COUNTING 4.3.1 STANDARD SAMPLING AND COUNTING 1. With the scale in any mode... 2. Press the SAMPLE key and place on scale the number of pieces indicated on display. (A different sample size may be selected by following procedure below). 3. Press the ENTER key. The display will change to count mode and the COUNT indicator will illuminate. 4. Add to scale the number of additional pieces to be counted and read the total count on display. 5.
4.3 OPERATION WEIGHING,SAMPLING AND COUNTING, Cont. 4.3.6 TO ZERO THE GROSS WEIGHT 1. With the display in weight or count mode... 2. Press the ZERO key. The tare weight will be set to zero and a new gross weight center of zero point will be established. If the display was in count mode, the count will be set to zero. If the display was in the weight mode, a zero gross weight will be displayed and the GROSS indicator will illuminate. In either case, the ZERO indicator will illuminate. 4.3.
5.0 CALIBRATION The following describes the Calibration of the MSB-25 scale in the event that the scale should need recalibration. A qualified technician should perform this function to maintain the instrument’s high degree of accuracy. 1. Unplug the scale from the power outlet. This unit applies power to the load cell and circuits even when the power switch is OFF. . 2. Ensure that the bulls-eye level indicates that the scale platform is level. Adjust if necessary. Refer to section 3.3.
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6.0 SERIAL INTERFACE A serial data communication interface is provided on the MSB-25 scale. This interface serves as the means to receive weight data from a remote scale, to respond to enquiry from auxiliary computer or to print displayed data with descriptive identifiers on a serial printer such as an Epson MX100 or compatible. Note: Requires cable 8510-C304-GA. Available from our Parts Department at 1-800-641-2045 or by email at parts@cardet.com.
7.0 CARE AND MAINTENANCE 1. DO NOT subject the commodity tray to sudden shocks. 2. DO NOT submerge the scale in water or spray water directly on the scale. The scale may be cleaned using a damp soft cloth and mild detergent. Be certain power is removed before cleaning is begun. DO NOT use an abrasive cleaner on this instrument. 3. DO NOT replace a fuse with the power cord plugged in or use fuses of sizes other than specified. 4. DO NOT use acetone or other volatile solvents for cleaning. 5.
PARTS DIAGRAM 17
8.2 PARTS LIST This section lists parts which are interchangeable by field or factory service personnel. Refer to the MSB-25 exploded view in section 8.1 for the location of each item. Unless otherwise noted, the quantity of each item is 1.
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GNED I S E D I N U .S TURED AC & M ANUF . .
