Data Sheet

ManualsBrandsDatataker ManualsData LoggersDatataker DT-CEM20 Multi-channel data logger

CEM20 Channel Expansion Module

Intelligent Data Logging Products

» Compact size

» Cost effective method of adding analog

channels to a data logger

» Extremely low power

» Each CEM20 multiplexes 20 analog channels

into one analog channel on the data logger

Increased channel capacity

Increasing the channel capacity of the dataTaker DT80 range is made very

easy by adding dataTaker Channel Expansion Modules (CEM20). Each CEM20

connects 20 universal data logging channels to the dataTaker data logger. A

dataTaker CEM20 connects to one analogue channel of the dataTaker data

logger. This effectively expands the total channel capacity of the DT80 to 300

analog inputs and the DT85 to an incredible 960 inputs. Incorporating the

same dual isolation technology as the DT80 range dataTaker data loggers each

channel of the CEM20 can be used for two isolated inputs or three common

reference inputs so the maximum inputs increases further.

Easy set up and connection

Connecting a channel expansion module to a dataTaker data logger is very easy.

The CEM20 is powered directly from the dataTaker data logger 12V output.

Analog output connections of the CEM20 connect to a analog channel of the

data logger.See sample wiring diagram shown.

Solid construction and design

The construction of the CEM20 is similar to the rugged dataTaker DT80 range.

The case is made from an anodized aluminium extrusion with powder coated

steel end plates. Removable screw terminals provide ﬂexible options for

installation and maintenance

Compatibility

The dataTaker CEM20 is compatible with all variants of the DT80 and DT85

data loggers series 2 and above.

Four wire

Isolated Input

Two wire

Isolated Input

Two wire Common

Reference Input

DT80 100 200 300

DT85 320 640 960

Applications include:

*FREE Software & Technical Support

Building & Construction

Concrete Cure Monitoring

Building Services

Geotechnical

Dam Monitoring

Land Slip

Mining

Tunnels

Scientiﬁc & Research

Thermal Proﬁling

Thermistor Arrays

Static Load Testing

General Industry

Refrigeration Monitoring

Oven Calibration

Process Monitoring

Warranty:

All dataTaker Data Loggers are covered by a 3 year warranty

on workmanship and parts. For further information on the dataTaker range,

or for useful downloads, contact your nearest dataTaker distributor.

Quality Statement: dataTaker operates a Quality Management System complying

with IS09001:2008.It is dataTaker’s policy to supply customers with products which

are fit for their intended purpose, safe in use, perform reliably to published

specification and are backed by a fast and efficient customer support service.

Trademarks: dataTaker is a registered trademark .

Specifications: dataTaker reserves the right to change product specifications

at any time without notice. Designed and Manufactured in Australia.

Summary of content (2 pages)

PAGE 1
CEM20 Channel Expansion Module Intelligent Data Logging Products Applications include: Building & Construction Concrete Cure Monitoring Building Services Geotechnical Dam Monitoring Land Slip Mining Tunnels Scientific & Research Thermal Profiling Thermistor Arrays Static Load Testing General Industry Refrigeration Monitoring Oven Calibration Process Monitoring *FREE Software & Technical Support Increased channel capacity » Compact size » Cost effective method of adding analog channels to a data logger
PAGE 2
Technical Specifications Proven relays from the DT80 range provides excellent isolation between channels and resistance to over voltag damage. Maximum sample speed is 12Hz. Internal RTD temperature reference allows very accurate thermocouple measurements. Status LED indicates measurement activity and is a useful commissioning and troubleshooting aid. Simple address configuration by 4-way DIP switch.