Lakeshore 240 Series User Manual

| www.lakeshore.com
Methods and apparatus disclosed and described herein have been developed solely on company funds of
Lake Shore Cryotronics, Inc. No government or other contractual support or relationship whatsoever has existed
which in any way affects or mitigates proprietary rights of Lake Shore Cryotronics, Inc. in these developments.
Methods and apparatus disclosed herein may be subject to U.S. Patents existing or applied for.
Lake Shore Cryotronics, Inc. reserves the right to add, improve, modify, or withdraw functions, design modifications,
or products at any time without notice. Lake Shore shall not be liable for errors contained herein or for incidental or
consequential damages in connection with furnishing, performance, or use of this material.
Rev. 1.7 P/N 119-241 8 November 2023
User’s Manual
240 Series
Cryogenic Sensor Input Module
Model 240-2P
Model 240-8P
Lake Shore Cryotronics, Inc.
575 McCorkle Blvd.
Westerville, Ohio 43082-8888 USA
sales@lakeshore.com
support@lakeshore.com
www.lakeshore.com
Fax: (614) 891-1392
Telephone: (614) 891-2243

Lakeshore 240 Series Specifications

General

Temperature Resolution	0.001 K
Sensor Excitation	10 μA to 10 mA, programmable
Display	Backlit LCD
Computer Interface	RS-232
Sensor Types	diode, thermocouple
Communication Interface	RS-232
Power Supply	100-240 VAC, 50/60 Hz
Dimensions	89 mm × 213 mm × 381 mm (3.5 in × 8.4 in × 15 in)

Summary

LAKE SHORE LIMITED WARRANTY

Manufacturer Limited Warranty

Details the warranty terms and conditions for Lake Shore products.

Chapter 1: Introduction

Sensor Selection

Safety Summary and Symbols

General safety precautions and hazard symbols for operating the instrument.

Chapter 2: Cooling System Design and Temperature Control

Temperature Sensor Selection

Sensor Installation

Chapter 3: Installation

Physical Installation

Power Connections and PROFIBUS-DP Interface

Wiring for power and setting up PROFIBUS-DP communication.

Diode/Resistor Sensor Inputs

Connecting and configuring diode and resistor sensor inputs.

Chapter 4: Configuration

Configuration Tools

Programming Using MeasureLINK™

Detailed steps for configuring the module using MeasureLINK software.

Chapter 5: Operation

PROFIBUS-DP Interface

Configuration and communication using the PROFIBUS-DP protocol.

USB Interface

How to communicate and control the module using a USB connection.

Command Summary

Chapter 6: Options and Accessories

Chapter 7: Service

USB Troubleshooting

Steps for resolving issues with the USB interface connection.

Factory Reset

Error Messages

List and explanation of common error messages displayed by the module.

Calibration Procedure

Electrostatic Discharge

Firmware Updates

Technical Inquiries