Model PC-400 Portion Control Scale Operator’s Manual Doran Scales, Inc. 1315 Paramount Pkwy Batavia, IL 60510 1-800-262-6844 www.doranscales.com Man. #233 Manual Revision 0.
Table of Contents Section 1. Unpacking and Installation ..................................................... 1 Unpacking: ................................................................................................................................................................1 Installation: ................................................................................................................................................................1 Electrical Connections:............................
Section 1. Unpacking and Installation Unpacking: Before unpacking your Doran scale, please read the instructions in this section. Your new scale is a durable industrial product, but it is also a sensitive weighing instrument. Normal care should be taken when handling and using this product. Improper handling or abuse can damage the scale and result in costly repairs that may not be covered by the warranty. If you notice any shipping damage, notify the shipper immediately.
Section 2. Scale Operations Guide Fig. 1 PC-400 Display Functions: The Model PC-400 controls consist of ON/OFF, UNITS and ZERO buttons located next to the main LCD display. The display is used to provide weight indications and operator messages describing scale operation. Basic Weighing: 1. Select the desired weighing units by pressing the UNITS button. 2. Empty the scale platter and press ZERO to zero the scale. 3. Place an item on the scale platter and wait for the MOTION indicator to go out. 4.
Section 3. Setup and Calibration Guide Power connections: The PC-400 is powered from a wall mounted transformer or the internal rechargeable battery. The transformer has a power cord which plugs into the power jack located on the back of the scale. RS-232 Connections: The PC-400 has a standard RS-232 output. To use this feature, the optional RS232 cable is needed. Plug one end of the RS-232 connector into the RJ-12 connector located on the rear of the scale. Attach the other end to your computer or printer.
4) Place full capacity (2lbs for the 2.2lb scale and 12lbs for the 13.2lb scale) on the platter and press ZERO. Wait for the scale to count down from “7” to “0. If the scale detects motion, the count will restart. When finished, the scale will return to the weigh mode. NOTE: If “SPnL” or “SPnH” appears on the display, the calibration span is out of range. Verify that the calibration weight is correct and repeat the calibration. Refer to the analog setup section for additional information.
Section 4. Battery Charging: The Model PC-400 can be operated by the Internal Rechargeable Battery. The typical battery life is 15 hours of continuous use. The scale will display LOW BATT in the LCD display panel when the battery needs to be recharged. To recharge the battery, follow these steps: 1. Insert the power connector into the rear of the scale. 2. Plug the power cord into an AC outlet (115 VAC). If the scale is turned off, four moving dots will appear on the bottom of the display.
Section 5. Parameter Setup The PC-400 has adjustable setup parameters which control the scale’s operation. Entering and Exiting Setup Mode: Quick Setup: The model PC-400 is equipped with a quick, front-panel setup mode. This setup mode allows the non-meteorological parameters to be modified. To enter the frontpanel setup mode, perform the following steps: 1. Turn off the scale. 2. Press and hold the UNITS button. 3. Press and hold the ON/OFF button for approximately one second. 4. Release both buttons.
Section 6. Setup Menus Explained Resoluton (divisions) Setup Menu Select Scale Capacity (lbs) div # of scale displayed divisions is 2500. 2.5 (default for 5lb and 10lb scales.) # of scale displayed divisions is 5000. 5.0 # of scale displayed divisions is 10000. 10 (default for 2lb scales.) Capacity Setup Menu CAP 2 5 10 12 20 Select Scale Capacity (lbs) Scale capacity set to 2.2 pounds Scale capacity set to 5 pounds Scale capacity set to 10 pounds Scale capacity set to 13.
Auto Off Mode Ao oF 60 30 20 10 5 4 3 2 1 Auto Off Mode The amount of time before the scale will shut off, if not in use. (Stays on if plugged in.) Off. Scale will run continually 60 minutes 30 minutes 20 minutes 10 minutes 5 minutes 4 minutes 3 minutes 2 minutes 1 minute Auto Zero Tracking t * 0.5 3.0 * 1.0 * # of displayed divisions that are automatically zeroed from displayed zero, while the scale is stable.
Data Output d.o. ↑ C.P. A.1 A.2 t.d. Controls when information is transmitted from the scale though the serial port Continuous data transmission. Transmits data each time the display is updated. Prints every stable weight. The same as A.1, except the weight must return to zero before the next weight is printed. Transmits data when the “W” command is received through the serial port. Data Format For. ↑ FO 2P F1 SP Format of transmitted data from the serial port Basic data format.
Startup Units UNITS ↑ lb o g g lb−o Unit of measure that the scale displays upon power-up The scale will power-up in pounds. The scale will power-up in ounces. The scale will power-up in kilograms. The scale will power-up in grams. The scale will power-up in pounds and ounces. Operation Mode oP St 44 Raw Counts ###### Sets the scale for Legal for Trade mode Standard mode. NOT legal for trade. Handbook 44. Legal for trade.
Section 7. Data Communications Introduction to data communications: In the PC-400, data is sent to a printer or computer by using “asynchronous serial data communications.” Data is broken up and sent one piece at a time to the printer or computer. In spite of this apparent simplicity, a basic understanding of serial data communications is needed when setting up the PC400. The PC-400 transmits letters and numbers by replacing the letter or number with an eight bit ASCII code.
The number of bits sent by the PC-400 is controlled by the data bits, parity and stop bit configuration. The PC-400 is factory set for eight bits, no parity and one stop bit. This means that the eight bits following the start bit will be data, followed by a stop bit. The stop bit signals the end of the data and permits the bit timer a chance to reset itself before the next data byte is sent. No parity bits are sent. Printer Modes: The PC-400 offers four different print control modes.
Data Output Format: In order for the serial data sent from the PC-400 to be useful, the data must be organized so that it is easy to read. To accomplish this, the PC-400 arranges the displayed data with additional text to indicate the active units and to indicate the presence of motion during the reading. “FO” Format: The basic data format sent by the PC-400 is illustrated in Fig. 2 through Fig. 4.
“F0” Print String Definition for Each Weight Unit: Pounds STX | POL | WEIGHT| SP | lb | SP | ST | CR | LF Ounces STX | POL | WEIGHT| SP | oz | SP | ST | CR | LF Kiligrams STX | POL | WEIGHT| SP | kg | SP | ST | CR | LF Grams STX | POL | WEIGHT| SP | g | SP | SP ST | CR | LF Pounds-ounces STX | POL | WEIGHTLB| SP | lb | POL | WEIGHTOZ | SP | oz | SP | ST | CR | LF STX = ASCII 02. POL = minus sign for negative weight or a space for a positive weight. WEIGHT = 6 character field plus decimal if needed.
Pounds STX | POL | WEIGHT| SP | LB | ST | CR | LF Ounces STX | POL | WEIGHT| SP | OZ | ST | CR | LF Kiligrams STX | POL | WEIGHT| SP | KG | ST | CR | LF Grams STX | POL | WEIGHT| SP | G | SP | ST | CR | LF Pounds-ounces STX | POL | WEIGHTLB| SP | LB | POL | WEIGHTOZ | SP | OZ | SP | ST | CR | LF STX = ASCII 02. POL = minus sign for negative weight or a space for a positive weight. WEIGHT = 6 character field plus decimal if needed. WEIGHTLB = pound portion of lb-oz weight.
“SP” Print String Definition for Each Weight Unit: Pounds FR”L1” | LF | ? | LF | POL | WEIGHT | LF | lb | LF | GS | LF | ST | LF | POL | WEIGHT2 | LF | kg | LF | P1,1 | LF Ounces FR”L1” | LF | ? | LF | POL | WEIGHT | LF | oz | LF | GS | LF | ST | LF | POL | WEIGHT2 | LF | kg | LF | P1,1 | LF SP, kilograms FR”L1” | LF | ? | LF | POL | WEIGHT | LF | kg | LF | GS | LF | ST | LF | POL | WEIGHT2 | LF | kg | LF | P1,1 | LF Grams FR”L1” | LF | ? | LF | POL | WEIGHT | LF | g | SP | LF | GS | LF | ST | LF | POL |
Section 8. Specifications Model PC-400 2500d, 5000d or 10000d Resolution: Power Supply: Wall Transformer output: (scale input) 12VDC, 300mA Neg. (-) center Internal, rechargeable battery Display: 0.
Section 9. Troubleshooting General problem resolution: Problem: Weight reading will not repeat or scale does not return to zero when weight is removed. What to Do or Check: Make sure that the scale platter is not rubbing or touching the scale cover. Verify that there is nothing caught in the platform under or around the load cell or spider. Scale overloads early Verify scale calibration is correct. If problem persists, recalibrate the scale. Scale will not come to zero when the ZERO button is pressed.
Error Messages: Error Message: “Er EP” “rg Er” “Ldg 0” “ov-Ld” “gS-oL” What to do or check: The setup parameters loaded in nonvolatile memory have become corrupted. Verify scale parameters and calibrate. The calibration zero is out of range. Error is displayed after a ZERO calibration attempt. Press zero to clear this error. Refer to the analog setup section for additional information. Pcb or load cell may need to be replaced. The scale is attempting to zero on power-up.
Error Messages (cont.): Error Message: “SPnL” “SPnH” What to do or check: Raw counts for the span calibration is too low. Refer to the “Analog Setup” section for raw count ranges. Raw counts for the span calibration is too high. Refer to the “Analog Setup” section for raw count ranges.
Limited One Year Warranty Doran Scales, Inc. warrants its products to be free from defects in material and workmanship for a period of one (1) year from date of shipment, excluding the Internal Rechargeable Battery which has a 90 day warranty. Any product found to be defective within this time period may be returned to Doran’s factory, freight prepaid, with prior return authorization and proof of purchase showing date of original sale, for repair or replacement at no charge.
