Siemens SITRANS F M TRANSMAG 2, Руководство по эксплуатации, Страница: 76 / 114

Technical data
SITRANS F M TRANSMAG 2
74
Operating Instructions, 11/2009, A5E00102775-07
Significance ≦ 5000 pulses/s
Pulse width ≧ 0.1 ms
Frequency ≦ 10.000 Hz
Limits For flow and quantity, flow direction, alarm
Digital output 2 (relay) only 7ME5034-0....
Relay NC or NO function
Rating Rating max. 5 W, UC 50 V, 200 mA
Output configuration limits for flow and quantity, flow direction, alarm
Digital input Only as alternative to digital output 2 (only 7ME5034-2....)
Input function configurable high or low
active
Set measured value or counter to zero
Signal voltage max. 30 V, Re = 3 kΩ
High level DC +11 to 30 V
Low level DC -30 to +5 V
PROFIBUS-PA For PROFIBUS devices (7ME5034-1....)
Communication Layer 1 and 2 according to PROFIBUS-PA
Transmission According to IEC 1158-2
Protocol layer Layer 7 according to PROFIBUS-PA and DP V1 (EN 50
170)
Device class B
Device profile 3.0; max. 4 simultaneous C2 connections
Bus voltage Permissible 9 to 32 V
Current consumption from bus 10 mA, limited to ≦ 15 mA in the event of an error by
electrical current limitation
Measuring accuracy under reference conditions
Table 10- 3 Measuring accuracy
Measuring tolerance of pulse output
At v > 0.25 m/s (0.82 ft/s) ≦ 0.5 % of the measured value, ± 0.0012 m/s (0.0039 ft/s)
At v < 0.25 m/s (0.82 ft/s) ≦ 0.0025 m/s (0.0082 ft/s)
Measuring tolerance of analog output 4
to 20 mA
Same as pulse output; plus ± 0.1 % conversion error ± 20
μA
Repeatability 0.2 % of the measured value
Reference conditions
Table 10- 4 Reference conditions
Medium process temperature +25 °C ± 5 °C (77 °F ± 9 °F)
Ambient temperature +25 °C ± 5 °C (77 °F ± 9 °F)
Warm-up time min. 30 min