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
2Connecting 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
3Setting-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
