CONTENTS
1 OVERVIEW...............................................................................................1
1.1 On-line and Off-line recordings..........................................................2
1.2 Memory Capacity during On-line and Off-line recordings.................2
1.3 Functional Block Diagram..................................................................3
1.4 Display and Keys ................................................................................4
1.5 Power Requirements...........................................................................5
2 ANALOGUE INPUTS / RANGES...........................................................6
2.1 Ranges.................................................................................................6
2.2 Temperature measurements - T/C's.....................................................7
2.2.1 Ranges and linearization.........................................................7
2.2.2 Cold Junction Compensation..................................................8
2.3 Temperature measurements - Pt100 sensors.......................................8
3 CONNECTIONS........................................................................................9
3.1 Power Supply......................................................................................9
3.2 Computer.............................................................................................9
3.3 Connecting Sensors and Transducers................................................10
3.3.1 Differential Inputs.................................................................11
3.3.2 Common Mode.....................................................................12
3.4 Examples...........................................................................................13
3.4.1 Thermocouples T/C ..............................................................13
3.4.2 20mA Current Loops ............................................................14
3.4.3 Voltage output transducers : .................................................16
3.4.4. RTD (Pt100) sensors.............................................................17
3.5 Common errors when connecting transducers..................................18
4 DIGITAL PORTS - COUNTERS.........................................................19
4.1 Counters............................................................................................19
4.1.1 Reset mode............................................................................19
4.1.2 Accumulating mode..............................................................19
4.2 Digital Inputs.....................................................................................20
4.3 Digital Output ...................................................................................20
5 CONNECT DIGITAL PORTS...............................................................21
5.1 Switch / Relay on Digital Input.........................................................22
5.2 TTL/CMOS signal on digital input...................................................22
5.3 External relay on digital output.........................................................23
5.4 Status Led on digital output ..............................................................23
6 MISCELLANEOUS ................................................................................23
6.1 Reset of the PC-logger 2100.............................................................23
6.2 Controller Program ...........................................................................23
6.3 50/60Hz Adaption.............................................................................23
7 TECHNICAL DATA / SPECIFICATIONS..........................................23
7.1 ANALOGUE DATA ........................................................................23
7.1.1 Method of measurement .......................................................23
7.1.2 Measurement interval ...........................................................23
7.1.3 Inputs ....................................................................................23
7.1.4 Ranges...................................................................................23
7.1.5 Divisions/Dynamic ranges....................................................23
