The SM-320 is a workhorse scale found in many retail environments.
Q: Can I use the SM320 service manual for the SM300 or SM500 series? A: Partially. The weighing and printing principles are similar, but PCBs and calibration routines differ. Find the exact model manual.
Q: My scale shows “Err CAL.” What does that mean? A: The calibration data has been lost (dead battery on mainboard or failed EEPROM). Replace the EEPROM and re-calibrate using the service manual’s procedure.
Q: How often should I calibrate the Digi SM320? A: Legally, every 6–12 months depending on local regulations. In high-use environments, check monthly with a test weight.
Q: Where is the serial number located? A: On a sticker under the scale or on the mainboard. You need this to request the correct service manual from support.
Need a specific section of the Digi SM320 Service Manual? Leave a comment below or contact an authorized Digi service partner in your region.
For professional technicians and authorized dealers, a service manual for the DIGI SM-320
typically covers advanced maintenance beyond the standard Operating Manual. Below is a breakdown of the deep technical content found in the SM-320 series service documentation. 1. Hardware Specifications
is a high-speed thermal label/receipt printing scale with a focus on retail and ECR (Electronic Cash Register) functionality. Resolution: 1/3,000. Memory: Standard 2MB (up to 8,300 PLUs), expandable to 8MB.
Interface: Includes 1x RJ45 (Ethernet), 1x RS232, and 1x RJ9 for a cash drawer.
Printer: 203 dpi thermal head; max speed of 105 mm/sec; life span of ~100 km. 2. Calibration Procedure (Span Adjustment)
Calibration should be performed annually or whenever the scale is moved. Accessing Calibration Mode:
Switch on the scale while holding Re-Zero and C to initialize.
Press the Span Switch (physical switch inside or under the unit). Enter "Z Mode" by pressing M, Re-Zero, M, M.
Hold Re-Zero and type the service code 8715 to enter "CALIBRATION MODE".
Weight Testing: Ensure no weight is on the platter and press Total Print (*). Place the required test weight (e.g., 3kg for a 15kg unit) and press Total Print again to set the span. 3. Network & IP Configuration
often requires manual IP assignment for POS system integration.
Manual Setting: Enter the administration page or use the keypad to adjust SPEC 135, which determines the last set of numbers in the IP address. digi sm320 service manual
HEX Format: Note that some DIGI firmware requires the IP to be entered in Hexadecimal (e.g., 192.168.168.X becomes C0.A8.A8.X). 4. Troubleshooting Common Error Codes SM-320 | Retail | DIGI SINGAPORE
DIGI SM-320 service manual is typically distributed through authorized dealers and service centers rather than direct public downloads. However, several technical guides and setup resources are available online to assist with maintenance and configuration. Technical & Service Resources Setup & Configuration Guide (Scribd)
: Provides detailed steps for scale configuration, setting IP addresses, and managing printer specifications for the DIGI SM-320 and SM-100 series. Technical Documentation Repository (OlegON Storage)
: A collection of instructions including full reset procedures and operator memos specifically for the DIGI SM-320 Commercial Service Manual Provider (The Checkout Tech)
: Offers paid digital copies of various DIGI service manuals, including closely related models like the SM-100 and SM-300 if a specific SM-320 service-specific manual is unavailable elsewhere. THE-CHECKOUT-TECH Key Maintenance Procedures Calibration & Setup Access : To enter the setting mode, hold the key and enter
on the numeric keypad. This allows you to view and adjust "SPEC" (specification) settings. System Reset : For a full reset, navigate to , then hold the key and enter 3, 7, 5, 2 Hardware Compatibility DIGI SM-320
uses the same thermal print head as the SM-100CS Plus and SM-5100, and its motherboard is compatible with the SM-5100 series, which may help when sourcing spare parts. servplus.ru Official Support
If you require an official technical service manual for warranty or complex repairs, you can contact DIGI Europe Support +44-(0)3450-609010 or visit the DIGI Global Contact Page to find a local distributor. DIGI (TERAOKA) wiring diagram for your SM-320 unit?
The SM-320 is a high-speed thermal printing scale available in Options include
202 x 32 pixel backlit FSTN LCD for both operator and customer.
Standard 2MB (approx. 8,300 PLUs), expandable to 4MB or 8MB. Interfaces:
Includes 1x RJ45 (Ethernet), 1x RS232, and 1x RJ9 for a cash drawer. 2. Installation & Assembly SM-320P (Pole version) , the assembly involves connecting the customer display: Remove Studs:
Unscrew the four stud screws located beneath the scale base. Connect Cables:
Securely join the serial cables from the scale and the pole display. Ensure the side latches click to prevent pin damage. Secure Pole:
Align the pole with the fixing locations and reinsert the stud screws. 3. Service & Maintenance Procedures Label Loading:
Gently pull the side panel, open the print head panel, load the label roll onto the spool, and guide the labels through the designated path before closing. Memory Initialization: (Standard for SM-series) Hold while turning the scale ON, then press the total print key three times followed by the (Clear) key. Thermal Head Maintenance:
Clean the thermal head regularly to maintain a 100km life span. To calibrate the head, hold during power-up. 4. Calibration & Mode Settings The SM-320 is a workhorse scale found in
Service manuals for DIGI SM scales typically require a physical Span Switch to be ON for calibration. Software Calibration:
The SM-320 supports software-based calibration for zero point and span adjustments. Spec Settings: by pressing
in sequence to access machine specifications (like Spec 141 for barcode formatting). 5. Troubleshooting Error Messages
The manual contains a full list of error codes. Common issues often relate to: SM-320 | Retail - DIGI (TERAOKA)
Table_title: Basic Table_content: header: | Model | SM-320 | | | | row: | Model: Capacity | SM-320: 3/6 kg | : 6/15 kg | : | : 15/ DIGI (TERAOKA) Digi SM-300P Scale Repair Guide - Calibration - Scribd
The Digi SM-320 is a retail scale designed for high-speed performance and efficiency in prepacking and storefront operations. While specific full-text service manuals for the SM-320 are often proprietary to authorized dealers, documentation and resources from the DIGI SM-series (including the SM-100, SM-300, and SM-120) provide a consistent framework for servicing and maintenance. Service & Technical Overview
The service documentation typically covers the following critical areas for authorized technicians:
Setup and Mode Changes: Instructions for navigating between Registration, Program, X (Read), and Z (Reset) modes to perform maintenance or reporting.
Memory Initialization: Procedures for clearing scale memory (e.g., using specific key combinations like . + Power ON) to reset specifications or clear data conflicts.
Calibration: Software-based calibration steps to ensure weight accuracy, often involving specific "SPEC" settings (e.g., SPEC 49 or 150 for interface configurations).
Connectivity: Technical specs for Ethernet (Coaxial/Twisted Cable) and RS232C interfaces used for linking the scale to POS systems or label printers. Common Service Files & Programming
Servicing the SM-320 involves managing several internal programmable files: DIGI DC-200/300 Service Manual, V1.37
Complete Guide to the DIGI SM-320 Service & Operation Manual
The DIGI SM-320 series represents a versatile line of digital printing scales widely used in retail and supermarket environments for their high-speed thermal printing and robust memory options. Whether you are a technician or an operator, understanding the core functions—from label loading to software calibration—is essential for maintaining accuracy. Core Technical Specifications The SM-320 is available in two primary configurations: the SM-320B (Bench) and the SM-320P (Pole) . Specification Capacity Available in 3/6 kg, 6/15 kg, or 15/30 kg intervals. Display 202 x 32 pixels FSTN LCD with back-light. Memory
Standard 2MB (8,300 PLUs), upgradable to 4MB (18,000) or 8MB (38,000). Printer
Thermal head (203dpi) with a maximum printing speed of 105 mm/sec. Connectivity
Standard interfaces include 1x RJ45, 1x RS232, and 1x RJ9 cash drawer port. Operational Setup & Maintenance Q: Can I use the SM320 service manual
Proper initial setup ensures the longevity of the thermal print head and the accuracy of the load cells. Loading Label Rolls
Access the Tray: Pull the side panel to reveal the label roll tray.
Open Print Head: Use the open switch to lift the print head panel.
Position Spool: Load the label roll onto the spool, following the internal guide rails for orientation.
Thread Labels: Route the label through the designated path and secure the end into the red take-up component.
Close and Test: Secure the green latch and push the side panel back. Perform a test print to verify alignment. Display Assembly (SM-320P Models) To assemble the pole display on DIGI SM-320P models, follow these steps:
Remove the four stud screws from the bottom of the scale base.
Securely connect the serial cables between the scale and the pole, ensuring the latches click.
Align the pole with the fixing locations and replace the screws. Service and Calibration Procedures
Advanced service tasks, such as calibration, should be performed with a span switch or specific key combinations. Entering Z-Mode: Press M -> RE-ZERO -> M -> M.
Software Calibration: To enter calibration mode, press the Span Switch, then in Z-Mode, hold RE-ZERO and enter code 8715. Follow the on-screen prompts to place test weights (e.g., 3kg for a 15kg capacity scale) and press the asterisk * key to finalize.
System Setup: Configure weighing patterns and barcodes through the system setup menu (Function -> System Setup -> Setting 15) to ensure compatibility with your POS system. Troubleshooting Common Error Codes
If your scale displays an error, first ensure it is on a level, stable surface and that the power supply is secure. SM-320 | Retail | DIGI America
Table_title: Basic Table_content: header: | Model | SM-320 | | | | row: | Model: Capacity | SM-320: 3/6 kg | : 6/15 kg | : | : 15/ DIGI (TERAOKA) SM-320 | Retail - DIGI (TERAOKA)
The service manual typically dedicates a section to the hardware specifications. Understanding these is crucial for component replacement and compatibility checks.
Warning: Many websites offer "free PDF downloads" that contain malware or outdated information. Here are the safe, legitimate methods to obtain the manual.
The service manual provides a comprehensive error list. Here are the most frequent ones: