PORTION CONTROL SCALE

Transcription

1 PORTION CONTROL SCALE 22 pounds/352 ounces/10 kilograms by grams, ounces, troy ounces, pounds, Hong Kong tael, Taiwan tael, grains, pennyweights, mommes, tolas, carats and free factor units 1

2 Specification Weighing range (max) (d) Readability (d) Linearity Minimum unit weight for piece counting Reference quantities for piece counting Warm-up time Recommended Calibration weight (not included) Stabilization time (typical) g 5 g 15 g 10 g 5, 10, 20, 25, minutes g (F1) 3 sec. Operating temperature + 5 C C Operating Humidity max. 80 % (not condensing) Intended use The scale you have acquired serves to determine the weighing value of the material to be weighed. It is intended to be used as a non-automatic scale, i.e. the material to be weighed is manually and carefully placed in the center of the platform. The weighing value can be read off after a stable weighing value has been obtained. Inappropriate use Do not use the scale for dynamic weighing. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the stability compensation in the scale. (Example: slowly draining fluids from a container on the scale.) Do not leave a permanent load on the platform. This can damage the measuring equipment. Be sure to avoid impact shock and overloading the scale in excess of the prescribed maximum load rating (max.), minus any possible tare weight that is already present. This could cause damage to the scale. Never operate the scale in hazardous locations. The series design is not explosion-proof. Structural alterations may not be made to the scale. This can lead to incorrect weighing results, faults concerning safety regulations as well as to destruction of the scale. The scale may only be used in compliance with the described guidelines. Varying areas of application/planned use must be approved by CDN in writing. 2

3 Before use Please read all instructions to familiarize yourself with the specification and operations before using and programming the scales. Installation The scales are designed in a way that reliable weighing results are achieved with consistent usage conditions. Selecting the right location for the scale is important. Therefore, observe the following for the installation: Place the scale on a firm, level surface; Avoid extreme heat and temperature fluctuation such as installation in the direct sunlight; Protect the scale against direct draughts due to open windows and doors; Avoid vibration during weighing; Protect the scale against high humidity, moisture and dust; Do not expose the device to extreme humidity for longer periods of time. Non-permitted condensation (condensation of air humidity on the appliance) may occur if a cold appliance is taken to a considerably warmer environment. In this case, acclimatize the disconnected appliance for approx. 2 hours at room temperature after it has been disconnected from the mains. Avoid static charging of the material to be weighed. Major display deviations (incorrect weighing results) are possible if electromagnetic fields occur as well as due to static charging and instable power supply. It is then necessary to change the location. In order to obtain exact results with the electronic scales, your scale must have reached the operating temperature. During this warming up time the scale must be connected to the power supply (mains, battery, rechargeable battery). Battery Installation Using a flat screwdriver, remove the battery cover on the bottom of the scale. Connect the 9V alkaline battery, observing polarity, and then replace the battery door. Tighten screw to secure. Using Adapter Before using the external mains adapter, make sure that the printed voltage must comply with the local voltage. Only use original CDN mains adapter. The use of other adapter is subject to approval by CDN. Connecting Peripheral Devices Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the scale from the power supply. 3

4 Calibration As the gravity value is not the same at every location on earth. To achieve best accuracy, the scale is highly recommended to be calibrated in compliance with the gravity at the place of use. This calibration process must be carried out for the first time of use, after each change of location as well as in case of environment temperature change. To receive accurate measuring values, it is also recommended to calibrate the scale periodically in weighing operation. The calibration should be made with the recommended calibration weight (see specification). Procedure for calibration: Observe stable environmental conditions. A warming up time of 30 minutes is required for stabilization. Turn on the scale by pressing the ON/OFF key. Press SET/TARE key and keep it pressed, until [CAL] appears in the display for few seconds. After that the adjustment weight (see specification) appears and flashes in the display. Place the adjustment weight on the center of the platform. Now press the SET/TARE key. Short time later [CAL F] appears, then returns automatically to the normal weighing mode. Readings of the adjustment weight appear in the display. An error during adjustment or the use of an incorrect adjustment weight will result in an error message [CAL E]. Repeat adjustment. Keep the adjustment weight close to the scale. Daily control of the weighing exactness is recommended for quality-relevant applications. Auto-Off For battery operation the scale has an automatic switch-off function which can be activated or deactivated in the menu. Procedures as follows: Press and hold the FUNCTION key until [UNIT] appears on the display. Press the UNIT/COUNT key or HOLD/PRINT key repeatedly until [ AF ] appears. Confirm by pressing the SET/TARE key. Use the UNIT/COUNT key or HOLD/PRINT key to choose between the following settings: 1. [AF on]: To save battery power, the scale switches off automatically if 3 minutes without weighing. 2. [AF off]: Switch-off function deactivated. Use the SET/TARE key to confirm selected setting. The scale returns to weighing mode. 4

5 Battery Status If the batteries are exhausted, "LO" appears in the display. Press ON/OFF key and replace the batteries immediately. If the scale is not used for a longer time, take out the battery and store it separately. Leaking battery liquid could damage the scale. Operating Instructions Key ON/OFF FUNCTION SET/TARE UINT/COUNT HOLD/PRINT ZERO Function Turn on/off power of the scale Call up menu (keep key pressed until UNIT appears) Confirm settings in the menu Save and exit menu Tare weight Select weighing unit Change settings in the menu Parts counting Display hold Calculate weighing data via interface Change settings in the menu Zero scale 1. Weighing Mode Turn on the scale using the ON/OFF key. The scale will perform self-test for few seconds. When the zero display appears, the scale is ready for operations. Important: If the display not showing zero, press the ZERO key. Place objects onto the center of platform. Take care that the weighed material should not touch the scale housing. Now the weight is displayed. Once the reading is stable, the weighing unit (e.g. g or kg) will appear on the right-hand side of the display. If the objects are heavier than the weighing capacity, the display will show "Error" (=Overload). 2.Tare Turn on the scale using the ON/OFF key and wait for the zero display. Put the tare vessel on the platform and press the SET/TARE key. The scale display goes to zero. The weight of the vessel is now saved. 5

6 The taring process can be repeated any number of times, e.g. when adding several components for a mixture (adding). The limit is reached when the total weight reaching full capacity of the scale. After removing the tare vessel, the total weight is displayed as negative reading. After finishing the weighing process, press the SET/TARE key again, the scale display goes back to zero. 3. Pre-Tare Function Using this function the weight of a tare vessel can be stored. This value also remains saved if the scale meanwhile has been switched off and switched on again. Put tare vessel on the platform. Press the UNIT/COUNT key until scale displays "5 PCS". Press the UNIT/COUNT key 6 times until "PtArE" flashes on the display. By actuating the SET/TARE key, the current weight on the platform is saved as Pre-Tare weight. To switch off this function, unload the platform. Press ZERO key if display is not showing zero. Press the UNIT/COUNT key until scale displays "5 PCS". Press the UNIT/COUNT key 6 times until "PtArE" flashes on the display. Press the SET/TARE key, the stored Pre-Tare weight is deleted. 4. Target Weighing This function can be used for unit weight control, fabrication control etc... Put the target weight on the platform and tare to zero by pressing the ZERO key. Remove the target weight. Put the test objects subsequently on the platform, the respective deviation from the target weight is displayed with the sign "+" or "-". According to the same procedure, packages with the same weight can be produced with referencing to a target weight. Back to weighing mode by pressing the ZERO key. 5. Counting Mode Press the UNIT/COUNT key until scale displays "5 PCS". By pressing the UNIT/COUNT key several times, more reference quantities 10, 20, 25 and 50 can be called up. Place the same number of pieces to be counted on the platform as the reference quantity. Confirm with SET/TARE key. The scale is now in counting mode, counting all units on the platform. Important: The larger the reference quantity, the more accurate the count. By pressing the UNIT/COUNT key the scale returns to the weighing mode and displays the weight of the counted units. Note: If the weight is less than the 10 g, the display appears "Er 1". Use UNIT/COUNT key to return to weighing mode. Note: Tare vessels can also be used for piece counting. Pre-tare the weight of the tare vessel prior to piece counting. 6

7 6. Net-Total Weighing It is useful for control purposes if a mixture of several components is weighed in a tared vessel and the final sum weight of all weighed components is displayed (net-total is the total weight excluding the tare vessel). Example: Put tare vessel onto platform, tare with ZERO key to zero. Weigh component. Press the SET/TARE key. Display shows zero with the memory icon, triangle, on the left side of the display. Weigh component. Press the SET/TARE key. Net-total, sum weight of the components will be displayed. Tare to zero using the SET/TARE key. Weigh component. Press the SET/TARE key. Net-total, sum weight of components will be displayed. If necessary, repeat above procedures to complete the formula up to the desired final value. Back to weighing mode by pressing the SET/TARE key. 7. Percentage Weighing Mode Display symbol: % Percentage weighing allows to display weight in percent, in relation to a reference weight. Press the UNIT/COUNT key until scale displays "5 PCS". Pressing the UNIT/COUNT key several times, until "100%" is displayed. Place the reference item on the weighing pan. Press SET/TARE key, the weight of the item is recorded as the reference weight (100%). Now you can place the test objects onto the platform; the percentage is displayed Back to weighing mode by pressing the UNIT/COUNT key. 7

8 8. Weighing Units (Unit) Press and hold the FUNCTION key until "UNIT" appears on the display. Press SET/TARE key, the selected unit is displayed. Use the UNIT/COUNT key or HOLD/PRINT key to select between different units (see following table). Press the SET key to select the default weighing unit. It will be displayed whenever the scale is turned on. Display Conversion factor 1 g = Gram g 1 Ounce oz Troy ounce ozt Pound lb Tael Hongkong tlh Tael Taiwan tlt Grain gn Pennyweight dwt Momme (mo) Tola tol Carat ct 5 Free Factor * FFA xx.xx * In order to enter an own conversion factor, press the UNIT/COUNT key or HOLD/PRINT key as explained above until "FFA" is displayed. Press the SET/TARE key to confirm the selection. The last digit begins to flash. Press the UNIT/COUNT key to increase the value; press the HOLD/PRINT key to decease the value. Press the ZERO key to set the next digit. When all digits are set, press the SET/TARE key to save this value. The "Free Factor" is now the current weighing unit. 9. Backlit Display The backlit display can be set according to the applications: Press and hold the FUNCTION key until "UNIT" appears on the display. Press the UNIT/COUNT or HOLD/PRINT key several times until "bl" is displayed. Press SET/TARE to enter back light setting. Press the UNIT/COUNT or HOLD/PRINT key to select setting based on below table. 8

9 Display Adjustment Function bl on Back light ON Good contrast display which can also be read in darkness bl off Back light OFF Battery saving bl Ch Back light will be switched off automatically if no weight change for 10 seconds. Battery saving Press the SET/TARE key to confirm setting. 11. Data Hold The scale has the display reading hold function so that important reading can be captured for a period. Press the HOLD/PRINT key once during weighing, display reading can be frozen. Press the HOLD/PRINT key again to change back to normal weighing mode. 12. Auto Zero Tracking Function The auto zero tracking function is used to tare out small variations in weight automatically. In some applications, small quantities are removed or added to the material to be weighed, this feature can affect the weighing results due to the stability compensation function in the scale. (Example: Slowly draining fluids from a container on the scale). When application involves small variations of weight, it is advisable to switch off this function. However, the weight reading will look less stable. In weighing mode, press and hold the FUNCTION key until "UNIT" appears on the display. Press the UNIT/COUNT or HOLD/PRINT key several times until "tr" is displayed. Press SET/TARE key to display current setting. Press the UNIT/COUNT or HOLD/PRINT key to select setting based on below table. tr on Function activated tr off Function deactivated Press the SET/TARE key to confirm selection. The scale returns to weighing mode. 13. Reset to Factory Settings This function resets all scale settings to factory setting. In weighing mode, press and hold the FUNCTION key until "Unit" appears. Press the UNIT/COUNT key or HOLD/PRINT key several times until "rst" is displayed. Press the SET/TARE key to display current setting. Select the desired settings by pressing the UNIT/COUNT key or HOLD/PRINT key. rst yes Scale will be reset to factory setting rst no Scale keeps its individual setting Press the SET/TARE key to confirm selection. The scale returns to weighing mode. 9

10 14. RS232C Interface Data from the scale can be output via the RS232C interface to other devices, e.g. printer, PC... Technical Data 8-bit ASCII Code 1 start bit, 8 data bits, 1 stop bit, no parity bit Baud rate selectable at 1200, 2400, 4800, 9600 and baud 9-pin D-sub female connector Use correct interface cable (max. 2m) to match below pinout - Pin 2: Tx - Pin 3: Rx - Pin 5: Gnd In the menu, the RS232C output can be set. To achieve this, follow the sequence of operations below: Press and hold the FUNCTION key until "UNIT" appears on the display. Press the UNIT/COUNT or HOLD/PRINT key several times until "Pr" is displayed. Press SET/TARE key to display current setting. Press the UNIT/COUNT or HOLD/PRINT key to select setting based on below table. Display Pr PC AU PC AU Pr Function Data output using the HOLD/PRINT key Continuous data output Automatic data output of stable weighing value Press the SET/TARE key to confirm setting. Baud rate The baud rate defines the transfer speed vie the interface, 1 Baud = 1 Bit/second. To set the baud rate, in weighing mode, press and hold the FUNCTION key until "Unit" appears. Press the UNIT/COUNT or HOLD/PRINT key several times until "baud" is displayed. Press SET/TARE key to display current setting. Press the UNIT/COUNT or HOLD/PRINT key to select the desired settings 9600 => 4800 => 2400 => 1200 => Press the SET/TARE key to confirm setting. The scale returns to weighing mode. 10

11 Explanation of the output data Pr PC: Press the HOLD/PRINT key to send the stable weight according to below formats. a. Format for stable weight M S N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 B U1 U2 U3 CR LF b. Format for error condition B B B B B B B B B B B E r r o r CR LF AU Pr: Scale will send the reading once weight is stable automatically according to below formats. c. Format for stable weight M S N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 B U1 U2 U3 CR LF d. Format for error condition B B B B B B B B B B B E r r o r CR LF AU PC: Scale will send weight readings automatically and continuously, no matter the reading is stable or unstable. e. Format for stable weight M S N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 B U1 U2 U3 CR LF f. Format for error condition B B B B B B B B B B B E r r o r CR LF g. Format for unstable weight M S N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 B B B B CR LF 11

12 Symbols using for the data format M Blank or M S Blank or minus sign (-) N1 N10 U1 U3 B 10 numeric ASCII codes for weight values including decimal places or blanks 3 ASCII codes for weighing unit pcs. / % / or blank Blank E, o, r ASCII code or "E, o, r" CR LF Carriage Return Line Feed Usage Guidelines Scales are precision instruments and must be handled with extreme care. Battery technology works best at room temperature. Place the scale gently on hard and flat surface and make sure it is steady before use. The maximum capacity of the scale is 22 lb/10 kg, which is the capacity before using the tare function. Do not place overweight items on the scale. Store the scale in a position that keeps it free from any load bearing weight. Storing the scale with pressure on the load cells can distort the weight measurements over time. Care of Your Product Do not submerge any part of the scale in water. Wipe clean with a damp cloth. Store the scale at room temperature between 41 to 95 F/5 to 35 C. Precautions Keep the scale and/or battery away from children. Do not clean the scale with abrasive or corrosive compounds, which may scratch the surface and corrode the electronic circuits. Do not subject the scale to excessive force, shock, dust, temperature or humidity, which may result in malfunction, shorter electronic life span, damaged battery and/or distorted parts. Do not tamper with the scale s internal components. Doing so will invalidated the warranty and may cause unnecessary battery damage and/or distorted parts. Do not subject the scale to excessive exposure to direct sunlight. The unit is not waterproof do not immerse it in any liquid, which will result in faulty measurements. To avoid deformation, do not place the unit in extreme temperatures. Always read the user manual thoroughly before operating. The information in this document has been reviewed and is believed to be accurate. However, neither the manufacturer nor its affiliates assume any responsibility for inaccuracies, errors or omissions that may be contained herein. In no event will the manufacturer or its affiliates be liable for direct, indirect, special, incidental or consequential damages arisen by using this product or resulting from any defect/omission in this document, even if advised of the possibility of such damages. The manufacturer and its affiliates reserve the right to make improvements or changes to this document and the products and services described at any time, without notice or obligation. 12

13 1-Year Limited Warranty: Any instrument that proves to be defective in material or workmanship (excluding batteries) within one year of original purchase will be repaired or replaced without charge upon receipt of the unit prepaid at: CDN, PO Box 10947, Portland, OR This warranty does not cover damage in shipment or failure caused by failure to adhere to the accompanying instructions, inadequate maintenance, normal wear and tear, tampering, accident, misuse, unauthorized modification, obvious carelessness or abuse. CDN shall not be liable for any consequential or incidental damages whatsoever. 13