Power Supply - Endress+Hauser iTEMP HART TMT142 Manuel De Mise En Service

TMT142
Output signal
Signal on alarm
Load
Linearisation/transmission
behaviour
Filter
Galvanic isolation
Input current required
Current limit
Switch-on delay
Supply voltage
#
Residual ripple
Response time
Reference operating
conditions
Maximum measured error
Endress+Hauser
10.0.2 Output
Analog 4 to 20 mA, 20 to 4 mA
• Underranging:
Linear drop to 3.8 mA
• Overranging:
Linear rise to 20.5 mA
• Sensor break; sensor short-circuit (not for thermocouples TC):
≤ 3.6 mA or ≥ 21.0 mA (configurable 21.6 mA to 23 mA)
Max. (V - 11 V) / 0.022 A (current output)

power supply

Temperature linear, resistance linear, voltage linear
st
1 order digital filter: 0 to 60 s
U = 2 kV AC (input/output)
≤ 3.5 mA
≤ 23 mA
4 s (during switch-on operation I
10.0.3 Power supply
U = 11 to 40 V (8 to 40 V without display), reverse polarity protection
b
Warning!
Power must be fed to the device from an 11 to 40 VDC power supply in accordance with NEC Class
02 (low voltage/current) with short-circuit power limit to 8 A/150 VA.
≤ 3 V at U
Perm. residual ripple U
ss
10.0.4 Accuracy
1 s
Calibration temperature: +25 °C ± 5 K; (+77 °F ± 9 °F)
Designation
Cu100, Pt100, Ni100, Ni120
Resistance thermometer Pt500
(RTD) Cu50, Pt50, Pt1000, Ni1000
Cu10, Pt200
= 4 mA)
a
≥ 13.5 V, f
= 1 kHz
b max.
0.2 K (0.36 °F)
0.6 K (1.08 °F)
0.4 K (0.72 °F)
2 K (3.6 °F)
Technical data
Accuracy
Digital D/A
2)
0.1 K (0.18 °F) 0.02%
2
0.3 K (0.54 °F) 0.02%
2
0.2 K (0.36 °F) 0.02%
2
1 K (1.8 °F) 0.02%
1)
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