Lauda E 4 G User Manual

English
Version 08/2011 a1
YACE0088
LAUDA DR. R. WOBSER GMBH & CO. KG
Post office box 1251
97912 Lauda-Koenigshofen
Germany
Valid from:
Software Control System from Version 1.31.00
Software Protection System from Version 1.31
Cooling System Software 1.27
Phone: +49 9343/ 503-0
Fax: +49 9343/ 503-222
e-mail info@lauda.de
Internet http://www.lauda.de
Operating Instructions
ECO GOLD
Heating and Cooling Thermostats with control head GOLD
Immersion thermostat
ECO GOLD
Heating thermostats
E 4 G, E 10 G, E 15 G, E 20 G, E 25 G, E 40 G,
ET 6 G, ET 12 G, ET 15 G, ET 20 G
Cooling thermostats
RE 415 G(W), RE 420 G(W), RE 620 G(W), RE 630 G(W),
RE 1225 G(W), RE 2025 G(W), RE 1050 G(W)

Lauda E 4 G Specifications

General

Brand	Lauda
Model	E 4 G
Category	Thermostat
Language	English

Summary

Safety

1.1 Safety information

Explains danger, warning, caution, and notice symbols and their meanings.

1.2 General safety

Provides general safety guidelines for operating the device and handling electrical hazards.

1.3 Special safety information

Details specific safety precautions for using the thermostat and handling heat transfer liquids.

General remarks

2.4 Responsibility of the operating body - safety information

Defines the responsibilities of the operator regarding personnel and device usage.

Before putting the device into operation

6.1 Assembly and siting

Provides instructions for assembling and positioning the device, including safety warnings.

6.2 Connection of external consumers

Explains how to connect external consumers and mount the pump connection set.

6.3 Filling and emptying

Details the procedure for filling and emptying the device with heat transfer liquid.

6.4 Heat transfer liquids, cooling water and hoses

Discusses approved heat transfer liquids, cooling water quality, and suitable hoses.

6.6 First switch-on

6.7 Installation of modules

Operation

7.1 Switching on

Explains how to switch on the device and what to expect during startup.

7.4 Basic setup

Maintenance

8.1 Alarms, warnings and errors

Explains the meaning of alarms, warnings, and error messages displayed by the thermostat.

8.1.1 Overtemperature protection: Alarm and checking

Details the overtemperature protection mechanism, alarms, and checking procedures.

8.1.2 Low level: Alarm and checking

Describes the low liquid level alarm, its causes, and checking procedures.

8.3 Servicing

8.3.1 Cleaning

Details the procedure for cleaning the device, including safety precautions.

8.3.3 Inspecting the heat transfer liquid

Explains how to inspect and renew the heat transfer liquid.

8.3.4 Cleaning the condenser

Provides instructions for cleaning air-cooled and water-cooled condensers.

8.4 Fault finding

Offers troubleshooting guidance for common device faults and their remedies.

8.6 Taking the device out of service

8.7 Ordering replacement parts / LAUDA Service

Provides contact information for service and ordering replacement parts.

Technical data and graphs

Data applicable to all ECO GOLD thermostats

Immersion thermostats

Heating thermostats with stainless steel bath

Heating thermostats with transparent bath

Cooling thermostats (1)

Cooling thermostats (2)

Appendix with settings

A.1 Resetting to factory settings

Guides on how to reset all device settings or specific parameters to factory defaults.

A.7 Entering the offset of the displayed temperature (calibration)

Guides on correcting internal temperature display deviations using offset calibration.

A.8 Restoring the factory setting of the internal temperature sensor

Describes how to restore factory settings for the internal temperature sensor calibration.

List of "Alarm and warning codes"

Alarms

Lists and explains specific alarm codes related to device safety and operation.

Warnings

Lists and explains warning codes indicating non-safety-relevant device status.

External control

D.1 Activating external control (external Pt100)

Guides on activating external control using an external Pt100 sensor.

D.3 Setpoint offset operating mode (Diff.set/actual)

Details how to apply an offset value to the temperature using an external sensor.

Programmer

E.1 Programming example

E.2 Creating and editing a program

Explains how to create, edit, insert, and delete program segments.

E.3 Starting the program

E.4 Interrupting, continuing or terminating the program

E.5 Defining the number of program loops (Loops)

Control parameters

F.1 Internal control variable (internal temperature sensor)

F.2 External control variable

F.2.1 Setting the correcting quantity limit

F.2.2 Procedure for setting the control parameters for external control

Interface modules

G.3 RS 232/485 interface module

G.4 USB interface

G.5 Commands and error messages applicable to the RS 232/485 interface module and to the USB interface