BECKHOFF FM33xx - Manual (Page 10)

Technical data
FM33xx 5
Technical data
(Version 1F.1 26.05.2000) FM3312 FM3332
Cold junction compensation Error +- 0,1 C (voltage to temperature)
+- 0,3°C (Offset and linearization)
Calibration Error +- 0,1°C
Nonlinearity Error +- 0,1°C
Temperature Drift +- 0,2°C
Temperature nonlinearity +- 0,1°C
Cold junction compensation Internal (temperature measurement in the plug)
Conversation time (per channel) Adjustable
50 ms (60 Hz Common Mode Rejection)
60 ms (50 Hz Common Mode Rejection)
Data update time 200 ms (60 Hz)
230 ms (50 Hz)
Wiring fail indication Yes (Open Thermocouple)
Back voltage indication
Back Voltage Range >10 V, < -10 V
Switch off time 3 ms, max.
Input resistance for current limitation 2400 R, typical
Input voltage 100 Vac between TC+ and TC- of each channel
240 Vac above Protective Earth
415 Vac to other TC
Input protection mechanism Current limitation
Channel disconnect
Range of Input protection 240 Vac,dc
Earth connection The plug must be connected to protective earth with the earth-
connector in the plug!
Fieldbus-specific data
Technical data
(Version 1F.1 26.05.2000) FM3312 FM3332
Field bus protocol PROFIBUS DP, EN50170
Transmission rate Max. 12Mbaud
Address configuration Setting via two rotary switches
Status LED RUN, BF (Bus Failed), ERR (Error)
TC Run, TC Err