PS Shipping Scales PS60 PS6L PS2+ Technical/Operator Manual For PS units with GEOCAL™ A15402600A 03/01
©Mettler-Toledo, Inc. 2000 No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of Mettler-Toledo, Inc. U.S. Government Restricted Rights: This documentation is furnished with Restricted Rights.
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INTRODUCTION This publication is provided as a guide for individuals in the operation, use, and care of this METTLER TOLEDO product. Further information or assistance regarding this product may be obtained by writing to: METTLER TOLEDO 1900 Polaris Parkway Columbus, OH 43240-2020 (614) 438-4400 WARNING! This equipment generates, uses, an can radiate radio frequency energy and if not installed and used properly, i.e.
PRECAUTIONS READ this manual BEFORE operating or servicing this equipment. FOLLOW these instructions carefully. SAVE this manual for future reference. DO NOT allow untrained personnel to operate, clean, inspect, maintain, service, or tamper with this equipment. ALWAYS DISCONNECT this equipment from the power source before cleaning or performing maintenance. WARNING DISCONNECT ALL POWER TO THIS UNIT BEFORE INSTALLING, SERVICING, CLEANING, OR REMOVING THE FUSE.
CONTENTS 1 Introduction................................ Introduction ................................................................ ................................................................................................ ................................................................ 1-1 Standard Features Features................................ ................................................................ .......................................................................................
Repowering from Sleep................................................................................................................ 4-3 5 Service and Maintenance ................................................................ ............................................................................. ............................................. 5-1 Cleaning and Regular Maintenance ................................................................ .......................................................
Chapter 1: Introduction Standard Features 1 Introduction Thank you for purchasing a PS shipping scale from METTLER TOLEDO. The legal-for-trade model of the PS60 shipping scale is a low-profile, 150 × 0.05 lb (60 × 0.02 kg) capacity scale designed to meet the needs of the legalfor- trade parcel/manifest markets. The PS60 also features an auto-ranging and/or weight classifying version with a capacity of 0 - 60 lb × .02 lb / 60 150 lb × .05 lb. Both are NTEP approved.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Optional Accessories • • • • • • • 0270, 2-key weight indicator base mount display with 12 in. cable D-cell alkaline battery kit (for some models) Tower display with 14 ft cable Ball transfer top platter (standard on PS2+) Car lighter jack Wall mount display with 14 ft cable Dual wall mount displays with 6 ft cable Specifications The PS shipping scale conforms to and operates best within the specifications described in this section.
Chapter 1: Introduction Specifications • • • • • Base dimensions: 558 mm × 450 mm (21.96 in. × 17.71 in.) Platter dimensions: 489 mm × 387mm (19.25 in. × 15.24 in.) Height with platter: 152 mm (5.98 in.) Weight: 16.8 kg (37.0 lb.) Shipping weight: 19 kg (41.9 lb.) Figure 1-b: PS2+ Dimensions Power Requirements The PS operates within an input voltage range of 7.5 to 15 VDC (at 60 mA). Environmental Requirements • An external, wall mount 12 VDC voltage converter supplies power to the PS.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual The scale is designed for use in parcel shipping and other light industrial environments. This unit is not intended for wash-down or hazardous area operation, or for operation in environments of extreme dust, heat, cold, or humidity. Standards Compliance The PS60 meets or exceeds USA NIST HB-44, Australian NSC Document 100, Canadian MC, European Community EN 45501, and OIML R76 for a 3000 divison, Class III parcel scale.
Chapter 1: Introduction Standards Compliance Electrical Interfaces The PS scale’s single board construction has a load cell connector (10 position ZIF), display connector (8 position phone jack), RS-232 interface (9-Pin DSUB), and an input power jack. The following interconnection diagram describes wiring connections for the PS shipping scale. The PS can function as a peripheral device to a host through the RS-232 serial port. Calibration and setup can be done using the Host Interface command set.
Chapter 2 2:: Installation and Calibration Unpacking and Setup . 2 Installation and Calibration This chapter gives detailed instructions and important information you will need to install the PS successfully. Please read this chapter thoroughly before you begin installation. This information is also covered in the PS Operator Instructions. Unpacking and Setup Please inspect the package as the carrier delivers it.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual 4. Level the scale by turning the adjustable feet on the bottom of the unit. When the bubble in the bubble indicator is within the circle, the PS is level (see Figures 2-a, 2-b, 2-c). The feet must be adjusted so the scale does not rock.
Chapter 2 2:: Installation and Calibration Unpacking and Setup Incorrect Bubble is not within circle Correct Bubble is within circle Figure 2-c: Level Indicator 5. Unpack the power supply and plug it into the power jack in the scale base. The jack is recessed on the bottom of the base toward the center front. Plug the line cord into a properly grounded AC power outlet. Figure 2-d illustrates proper power supply connection.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Basic Information The following sections describe some basic information that you will need to know as you install, calibrate, and use the PS in normal operating mode. The Display The PS’s display consists of six digits and five cursor positions. Each digit is composed of seven segments and is 12 mm high.
Chapter 2 2:: Installation and Calibration Initial Calibration using GeoCal Keys and Navigation The PS keypad contains a UNITS key and a ZERO key: UNITS ZERO 0 I/ Figure 2-f: UNITS and ZERO Key The functions for each key in normal operating mode are as follows: • UNITS—Press UNITS to switch between the selected main units and alternate units. • ZERO—Press ZERO to zero an empty scale. The reading must be within 2% of the calibrated zero.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Initial Calibration using GEOCAL™ The PS shipping scale must be calibrated when the unit is initially installed to correct for local gravity variations thereby ensuring accurate weighing results. If the GEOCAL™ capabilities of your PS unit have been activated, the unit has been pre-calibrated from the factory.
Chapter 2 2:: Installation and Calibration Initial Calibration using GeoCal (03/01) 2-7 2-7
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual The sequence for selecting your GEOCAL™ code is as follows: 1. Press the ZERO key to display the first code option and continue pressing it to scroll through all of the available codes. 2. Press the UNITS key to select the code for your location. The display will then prompt done. Press the UNITS key again to restart the scale.
Chapter 2 2:: Installation and Calibration Full Calibration CAL Jumper W1 Figure 2-g: CAL Jumper on Main PCB 4. Connect the power to the scale. 5. Enter the setup mode by pressing and holding the UNITS key for up to eight seconds until the message Setup is displayed. Release the UNITS key. 6. Press the UNITS key several times until the Cal prompt appears, then press ZERO to display YES or NO. Select Yes to calibrate or select No to abort calibration. If Yes, press UNITS to begin the calibration process.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual The PS is now calibrated and ready to configure to your needs. Chapter 3 of this manual gives setup and configuration details. Metrological Seal Installation If a wire seal is required for W & M requirements, the PS can be sealed after calibration and setup by installing a wire seal on the Main PCB access cover, as shown in Figure 2-h. (The PS2+ does not have a metrology seal.
Chapter 3: Configuring the Setup Parameters Configuring Setup Parameters 3 Configuring the Setup Parameters This chapter discusses basic information related to PS configuration and specific instructions on configuring each program block and operating parameter. Basic Setup Information The following sections describe some basic information that you will need to know as you configure the setup parameters for the PS.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual • The scale automatically leaves the setup mode after it has been calibrated. • Disconnect the power from the scale. Changes will not be saved.
Chapter 3: Configuring the Setup Parameters Configuring Setup Parameters Zero Cursor Program Block The Zero Cursor program block lets you enable or disable the center of zero indicator on the PS. (Metrology PCB jumper must be removed.) To configure the program block: 1. Press UNITS to display the 0 CurS prompt, then press ZERO. 2. Press ZERO to display the desired approval setting, enable or disable. 3. Press UNITS to accept the displayed option. The PS continues to the Power-up Unit program block.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Multi-interval PS60, 2x3000d Power-up units = Pounds Power-up units = Metric 150-02 150 x 0.02 lb. 60-01 60 x 0.01 kg 150-05 150 x 0.05 lb. 60-02 60 x 0.02 kg 100-02 100 x 0.02 lb. 50-01 50 x 0.01 kg 150-ni 0-60 x 0.02 lb., 60-150 x 0.05 lb. * 60-ni 0-30 x 0.01 kg, 30-60 x 0.02 kg 70-ni 0-50 x 0.01 kg, 50-70 x 0.05 kg PS6L Power-up units = Pounds 149-ni 0-10 lb. x 0.1 oz, 10-70 lb. x 0.2 oz, 70-150 lb. x 0.5 oz * 150-n5 0-5 x 0.005 lb., 5-25 x 0.
Chapter 3: Configuring the Setup Parameters Configuring Setup Parameters • Normal • Expanded – typically x10 • Classifier – weight classifier rounding 3. Press UNITS to accept the displayed mode option. The PS continues to the Filter program block. Filter Program Block The Filter program block lets you configure the noise filter that is used in determining weight stability on the scale.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual 2. Press ZERO to display the desired bit selection. Options include: • Seven (7) • Eight (8) 3. Press UNITS to accept the displayed option. The PS continues to the Parity program block. Parity Program Block The Parity program block lets you select the parity option for data transmission. Parity is an error checking mechanism. To configure the program block: 1. Press UNITS to display the PAr prompt, then press ZERO. 2.
Chapter 3: Configuring the Setup Parameters Configuring Setup Parameters • Proto 2 (Weightronix SC-320 com. set) command set) • Proto 3 (Weightronix 3870 com. set) • Proto 6 (Airborne • Disable(turns off communications) 3. Press UNITS to accept the protocol option. The PS continues to the Sleep program block. Note: Protocols 1-6 are not available on the PS6L. Sleep Program Block Power is saved if RS-232 interface is not used. The Sleep program block lets you configure the sleep timer.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual End Program Block The End program block lets you save the configuration and exit setup mode. This program block does not have parameters to configure. To use the End program block: 1. Press UNITS to display the End prompt. 2. Press ZERO to display the desired exit option. Exit options include: • • • • Default—Reset all program block parameters to standard MT values, then exit setup mode.
Chapter 4: Operating Instructions Keypad and Display 4 Operating Instructions This chapter gives information that an operator will need to become familiar with the scale and perform its functions in normal operating mode. The scale operates based on the current program block configuration. Please refer to Chapter 3 for more information on configuring the PS. Keypad and Display The PS has a simple LCD weight display with two keys that are used to perform scale functions.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Parcel Weighing Before weighing parcels on the PS, please be sure the scale is configured as desired (Chapter 3) and power is applied as instructed in Chapter 2 of this manual. You may wish to recapture zero periodically when the scale is in continuous use. It is not necessary to press ZERO before each transaction. To weigh a package: 1. Press ZERO to capture zero. The display reads 0.
Chapter 4: Operating Instructions Operator Functions Repowering from Sleep If the PS display is blank after a period of inactivity, the ZERO key “awakens” the unit from its power-saving (sleep) mode. When the ZERO key is pressed, the PS goes through its power-up sequence and returns to normal operating mode.
Chapter 5: Service and Maintenance Cleaning and Regular Maintenance 5 Service and Maintenance This chapter gives information on servicing, upgrading, and maintaining the PS including cleaning and regular maintenance, troubleshooting, and installing optional equipment kits. Cleaning and Regular Maintenance You may need to wipe the keypad and platter with a clean, soft cloth that has been dampened with a mild cleaner. Do not use any type of industrial solvent such as toluene or isopropanol (IPA).
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Error Code Section Error codes are displayed on the weight indicator with a leading “E” to distinguish themselves from weight data. Code Meaning Action E1 ROM (checksum) error Call Mettler Toledo Service E2 RAM error Call Mettler Toledo Service E3 EEPROM error Re-calibrate scale or replace load cell E4 TC error Call Mettler Toledo Service E5 Serial Communications (Data) error Verify connection from the scale to the host.
Chapter 5: Service and Maintenance Load Cell Replacement To test the Main PCB: (Unit must be setup for standard MT communications (Default)): 1. Start your communications software such as ComTool (Part Number KN000000K64). 2. Setup your software for: • • • • 7 data bits Even parity 1 stop bit Baud rate that matches the computer’s baud rate Blank or Half Display Remove power then check the display interface harness from the scale to the display. Apply power the unit.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual extends battery life. For prolonged battery life, turn the scale off when not in use. Rechargeable Ni-Cad batteries can also be used. WARNING! Always remove all power before operating on any equipment. Mettler-Toledo recommends that only qualified technicians open the unit up for maintenance and repair. If you must open the PS, read this section carefully to avoid damage to the internal components. 1.
Chapter 5: Service and Maintenance Installing the Battery Kit 3. Attach the harness assembly (P/N 14544600A) to the battery holder. Six alkaline 1.5 VDC, D-size batteries (P/N 13293700A) are required for operation. 4. Insert the on/off rocker switch (P/N 14262400A) into the switch hole of the battery cover (P/N 14545200A) noting the orientation of the switch. 5. Insert the two fasteners (P/N 12051300A) into the battery cover. 6.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual 7. Connect the plug into the receptacle on the Logic PCB as shown below and install the six 1.5 VDC, D-size batteries. 8. Carefully attach the battery cover paying close attention to the routing of the cable to the Main PCB. Close the battery cover fasteners.
Chapter 5: Service and Maintenance Installing the Base Mount Display Installing the Base Mount Display A base mount display unit (0270, 2-key indicator) can be installed if one was not ordered initially for the PS shipping scale (PS60 and PS6L models only). To install the base mount display: 1. Attach the display unit to the bottom of the PS with the two M4 10mm screws (P/N R0550100A) as shown below: 2. Install the display interface harness from the display as shown.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Installing the Ball Top Transfer Platter A ball top transfer platter is available for the PS. (Ball top transfer platters are standard on the PS2+ model.) To install the ball transfer platter: 1. Remove the platter supplied with the PS. 2. Place the ball top transfer platter on the PS. 3. Ensure that the ball top transfer platter drops into place without mechanical interference.
Chapter 6: Parts and Accessories PS60/PS6L 6 Parts and Accessories Please refer to the following diagrams and parts lists when ordering parts and accessories for the PS shipping scale.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual PS60/PS6L Scale Parts Figure 6-a 6-2 (03/01)
Chapter 6: Parts and Accessories Scale Parts NOTE: Some part numbers may have a revision letter in front of them.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual PS2+ Scale Parts Figure 6-b 6-4 (03/01)
Chapter 6: Parts and Accessories PS2+ Scale Parts NOTE: Some part numbers may have a revision letter in front of them.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Weight Display Parts Parts List—Weight Display Ref # Part Number Description Qty 1A 15705300B Display PCB Assembly W/Cable 1 1B 15640800A Display Base 1 1C R0550100A Screw,M4X10,PH,THD,w/Washer 2 NOTE: Some part numbers may have a revision letter in front of them.
Appendix: Host Interface Communication Parameters Appendix: Host Interface The METTLER TOLEDO PS shipping scale can function as a peripheral device to a host computer. In host mode you can: • Calibrate the scale • Configure setup parameters • Request and receive weight data when the scale is in a stable state The scale does not reply to host weight commands if it is in setup mode or if the scale cannot capture zero on power-up.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual ASCII Characters and Conversions ASCII CHAR. DEC HEX 76543210 ASCII CHAR.
Appendix: Host Interface Scale Status Byte Format ASCII CHAR. DEC HEX 76543210 ASCII CHAR.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Toledo Protocol Host Commands Following is a listing of host commands and scale responses. Brackets “<>” are used to indicate that the characters within are a description of the transmitted data and are not part of the transmitted data string. indicates an ASCII Start Of Text character (HEX 02). indicates an ASCII Carriage Return (HEX 0D). Host Command Description W* Send normal resolution weight data.
Appendix: Host Interface Scale Status Byte Format Scale Status Byte Format When communicating in host mode using the standard Toledo protocol, the PS may send status bytes containing information such as motion and over/under-capacity conditions. The message ? indicates transmission of a status byte. The status byte sent is an ASCII character that must be converted to binary form for decoding the bits.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual Status Byte Bit No. Bit Description 6 1 = New status data available. 0 = Host has read data. 5 Bit is always a 0. 4 1 = ROM test failed. 0 = ROM test passed. 3 1 = RAM test failed. 0 = RAM test passed. 2 Bit is always a 0. 1 1 = Calibration Required. 0 = Calibration Data OK 0 1 = EEPROM test failed 0 = EEPROM test passed. Calibrate Using Host Interface The PS shipping scale can be calibrated using the host interface.
Appendix: Host Interface Scale Status Byte Format 6. Add the requested calibration weight to the scale, then send the command Y to continue. The scale responds CAL DONE or INCORRECT AMOUNT OF WEIGHT . Configure Scale Parameters Using Host Interface Configuration parameters can also be sent using the host interface. A command to send a new scale configuration over the host interface is available in the METTLER TOLEDO command set. To configure using the host interface: 1.
METTLER TOLEDO PS Shipping Scale Technical/Operators Manual The table below lists the programming options available in each program block as they are used in Host Interface Setup. When downloading the scale setup it is strongly recommended that you modify only the selections that you need to change in the current setup bytes sent by the scale. Leave the values of all other setup bytes as they were when sent from the scale (including the selections that are currently not used).
Appendix: Host Interface Scale Status Byte Format You can obtain the current configuration by sending the S command. Then you can abort without changing by sending the A command to abort. Before sending the DONE reply, the configuration file is analyzed just as if it had been constructed using the keyboard. 3. Send the command desired new set of bytes to the scale: Y1Y2 ... Y19Y20 4. The scale will check to make sure the requested bytes are valid, then will echo the request: Y1Y2 ...
METTLER TOLEDO Scales & Systems 1900 Polaris Parkway Columbus, Ohio 43240-2020 P/N: A15402600A (03/01) METTLER TOLEDO® is a Trademark of Mettler-Toledo, Inc. © 2000 Mettler-Toledo, Inc. Printed in U.S.A.
