Peekel Instruments PICAS - Default Chapter; Table of Contents

Peekel Instruments B.V. User manual PICAS V2.6.1
Page 2 of 59
Contents:
1. Introduction.................................................................4
1.1 Power.................................................................................................................................4
1.2 General ..............................................................................................................................5
1.3 The Carrier Frequency principle ........................................................................................5
1.4 General design principles ..................................................................................................6
2 Connecting the instrument........................................7
2.1 Carrier frequency inputs on CA2CF...................................................................................7
2.1.1 Connecting the Transducers..............................................................................................7
2.1.2 About Cable-capacitance...................................................................................................7
2.1.3 Bridgeconnector pinout......................................................................................................8
2.1.4 Full-bridge ..........................................................................................................................9
2.1.5 Half-bridge .......................................................................................................................10
2.1.6 Quarter-bridge using 2-wires ...........................................................................................11
2.1.7 Quarter-bridge using 3-wires ...........................................................................................11
2.1.8 Displacement Transducers ..............................................................................................12
2.1.9 Potentiometer connection ................................................................................................13
2.2 Analog inputs on CA4AI...................................................................................................14
2.2.1 Analog input connector pinout .........................................................................................15
2.2.2 Potentiometer connection ................................................................................................16
2.2.3 Connection of a resistor sensor like a PT100..................................................................16
2.2.4 Connection of a voltage signal.........................................................................................17
2.2.5 Connection of a 4 – 20 mA Sensor.................................................................................17
2.2.6 Connection of a 0-20mA Sensor.....................................................................................18
2.2.7 Connection of a Thermocouple element..........................................................................18
2.3 Outputs ............................................................................................................................19
2.3.1 Combined analog output..................................................................................................19
2.3.2 Digital Outputs .................................................................................................................19
2.3.3 Digital Inputs ....................................................................................................................19
2.4 Communication ports.......................................................................................................20
2.4.1 RS232 interface ...............................................................................................................20
2.4.2 USB..................................................................................................................................20
2.4.3 RS485 interface ...............................................................................................................21
2.4.4 Rear panel connections ...................................................................................................22
2.4.5 Option Sum & difference values ......................................................................................23
3 Setting-up the instrument........................................24
3.1 General ............................................................................................................................24
3.1.1 Power up..........................................................................................................................24
3.1.2 Presentation of numbers..................................................................................................24
3.1.3 Conventions .....................................................................................................................24
3.1.4 Settings Protection...........................................................................................................25
3.2 Software Installation.........................................................................................................25
3.2.1 Loading new versions of firmware (Updates) ..................................................................25
3.3 Human Interfacing ...........................................................................................................25
3.3.1 Navigating the LCD display and the pushbuttons ............................................................25
3.3.2 Fields ...............................................................................................................................27
3.4 Measuring Display ...........................................................................................................29
3.4.1 Actual value display .........................................................................................................29
3.4.2 Peak value display...........................................................................................................30
3.4.3 Sum – difference value display.......................................................................................31
3.4.4 Bar graph value display....................................................................................................31
3.5 System-menu’s ................................................................................................................32
3.5.1 System-menu: GENERAL ...............................................................................................34
3.5.2 System-menu: Communication........................................................................................35
3.5.3 System-menu: Actions.....................................................................................................36
3.5.4 System-menu: Memory....................................................................................................37