Instructions

UM-0085-B09 DT80 Range User Manual Page 406
RG
 dataTaker
The name of the family of stand-alone data logging, acquisition and associated equipment manufactured by Thermo
Fisher Scientific.
dataTaker releases:
• 1983 dataTaker DT100
• 1987 dataTaker DT200
• 1990 dataTaker DT500 series, DT600 series, and the DT50
• 2000 dataTaker DT800
• 2005 dataTaker DT80
• 2006 dataTaker DT81
• 2007 dataTaker DT85
• 2008 dataTaker DT80/81/85 Series 2, DT80G/85G, CEM20
• 2010 dataTaker DT82E/82I
• 2011 dataTaker DT8x Series 3, DT8xM with integrated modem
• 2017 dataTaker DT8x Series 4, DT8xM with integrated modem, DT8xW with integrated WiFi

DCE
Data Communications Equipment. A DCE device (a modem, for example) enables a DTE device (such as a
computer or a DT80) to communicate over phone lines or data circuits. A DCE device connects to the RS 232
interface of a DTE device.
 dEX
A suite of web-based applications that allow the DT80 to be configured and monitored using only a web browser.
 DDNS
Dynamic Domain Name Service. An Internet service which allows you to access by name a device (such as the
DT80) that has a dynamic IP address.
 default
An attribute, value or option that is assumed if none is explicitly specified. A state or group of operating conditions
(determined by the manufacturer and factory-set) to which the DT80 automatically reverts after a reset.
 DHCP
Dynamic Host Configuration Protocol. A system for automatically setting the IP address and other network
parameters for a device on a TCP/IP network.
 differential input
An analog input where the difference between two voltages is measured, without reference to ground or any other
common point. For example the
1V command measures the differential voltage between the 1+ and 1- terminals.

differential voltage
The difference between the voltages on the two inputs of the DT80’s instrumentation amplifier. See common-mode
voltage (P405).
 digital
a quantity that is represented by a number that has a finite number of possible values. The number of bits used to
store a digital value determines the resolution, i.e. how close two values can be and still be resolved (distinguished).
Some quantities are inherently digital, e.g. a logic signal or switch (whose state can be represented by 1 bit)
 digital ground
The reference point for most of the DT80's circuits, e.g. power, communications, digital I/O – everything except the
analog input sub-system (see analog ground (P403)).
 directory
An area on a data storage device used to store related files. Also known as a folder.
 DNS
Domain Name Service, a TCP/IP network protocol. Networked devices, such as the DT80, send requests to a DNS
server whenever they need to translate a domain name (e.g. ftp.moose.com.au) into a numeric IP address (e.g.
203.111.202.44).