Peekel Instruments PICAS - 5 Technical Specifications

Peekel Instruments User manual PICAS V2.6.1
Page 58 of 59
5 Technical Specifications
Carrier frequency inputs of the CA2CF-card
General
Typical accuracy class 0.1%
Bandwidth (-3 dB) 2000 Hz
Maximum cable length: 500m
Sensor connection 2-, 3-, 4-, or 6-wire configurations
Bridge supply (transformer-isolated)
Supply voltage 0,5... 5V (adjustable)
Voltage accuracy ± 0.05%
Frequency 5 kHz
Frequency accuracy ± 1%
Load 60..-..1000  0,1%
1000..- 3000  >0,1%
Internal bridge-completion ½- bridge und
¼- bridge 120  / 350 
Measuring input (transformer-isolated)
Ranges (@5V excitation): ± 100 µV/V.... ± 1 V/V
Input Filter: (High pass) > 500 Hz
Max. Common Mode Voltage 200V
Common Mode Rejection (50 Hz) >120 dB
Serial Mode Rejection: >66 dB
Capacitive input overload max.7x range permissible
Special input filtering for noise reduction
Balance control
R-balance +/- 65 mV/V
C-Balance at 120 Ω bridge up to 10 nF
Output
Full scale voltage +/- 10 V
Protection long-term short circuit allowed
Maximum capacitive load 10 nF
Maximum cable length 100 m (@100 pF/m)
Frequency (-3 dB) < 2000 Hz
Filter type 7-pole low pass Butter worth -42 dB/Octave
Analog inputs of CA4AI-card
General
Typical accuracy class 0.1%
Bandwidth (-3dB) 10 Hz
Sensor connections 2-, 3-, or 4-wire configuratieons
Sensor supply:
Voltage: 5V ± 0.1% (max. 50 mA)
(Maximum for 4 channels together is 100 mA)
Current: 1mA ± 5% (max. 7,5kΩ)
Power for active sensors 24VDC (max 80mA)
(galvanic separated from inputs)