Elma Elmasonic S 120 H User Manual

Elma Schmidbauer GmbH Gottlieb-Daimler-Str. 17 D-78224 Singen Fon +49 (0)7731 / 882-0 Fax +49 (0)7731 / 882-266 info@elma-
ultrasonic.com
www.elma-ultrasonic.com
Service Manual
Elmasonic S
Ultrasonic Cleaning Units

English
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Elma Elmasonic S 120 H Specifications

General

Brand	Elma
Model	Elmasonic S 120 H
Category	Ultrasonic Jewelry Cleaner
Language	English

Summary

Important Safety Warnings

Critical Safety Precautions

Critical safety precautions for the operation and maintenance of the unit.

Product Description and Specifications

Operating Elements S 15-S 900 H

Operating Elements S 10/S 10 H

Technical Details

Specifications and technical data for various Elmasonic unit models.

Operating and Display Functions

Details on how to operate the unit and interpret its displays.

Troubleshooting Guide

PCB Measuring Points

Identification of key measurement points on printed circuit boards for diagnosis.

Opening the Unit

Opening Elmasonic S10-S15 H

Opening Elmasonic S30/S40/S70/S80(H)

Opening Elmasonic S 50 R

Opening Elmasonic S60/S100-S900 H

Replacing Turning Knobs

Removing Turning Knobs

Replacing PCB Control

PCB Control Replacement S 10(H)-S 300(H)

Procedure for replacing the PCB control on S10(H) to S300(H) units.

PCB Control Replacement S350R/S450H/S500HM/S900H

Procedure for replacing the PCB control on S350R/S450H/S500HM/S900H.

Power Module Replacement

Replacing PCB Interference Filter

Filter Replacement S 10(H)-S 40(H)

Steps to replace the PCB interference filter for S10(H) to S40(H) models.

Filter Replacement S 60(H)-S 100(H)

Steps to replace the PCB interference filter for S60(H) to S100(H) models.

Filter Replacement S 120(H)-S 300(H)

Steps to replace the PCB interference filter for S120(H) to S300(H) models.

Filter Replacement S350R/S450H/S500HM/S900H

Steps to replace the PCB interference filter for S350R/S450H/S500HM/S900H.

Replacing Potentiometers

Potentiometer Replacement Procedure

Step-by-step guide for replacing potentiometers on the control PCB.

Replacing the PCB Support

PCB Support Replacement Procedure

Replacing the Heating Element

Heating Wiring S 450 H and S 900 H

Replacing the Transducer Tank

Transducer Tank Replacement Procedure

Steps for replacing the transducer tank if damaged by erosion or leaks.

Replacing the Drain Duct

Replacing the Turning Knob Drain Duct

Replacing the Ball Valve

Procedure for replacing the ball valve in the drain duct assembly.

Putting into Operation and Trial Run

Filling the Cleaning Liquid

Cleaning Media Selection

Guidance on selecting suitable and safe cleaning chemicals for the unit.

Setting Temperature

Ultrasound Check