Power Supply; Performance Characteristics - Endress+Hauser TMT122 Operating Instructions Manual

Temperature DIN rail transmitter
Source impedance
Transmission behavior
Filter
Galvanic isolation
Input current required
Current limit
Switch on delay
Electrical connection
Supply voltage
Residual ripple
Response time
Reference operating
conditions
Maximum measured error
Endress+Hauser
e.g. (24 V-12 V)/0.022 A = 545.5 Ω
max. (V - 12 V) / 0.022 A (current output)

Power supply

Temperature linear, resistance linear, voltage linear
1st order digital filter: 0 to 100 s
U = 2 kV AC (input/output)
≤ 3.5 mA
≤ 23 mA
≤ 3.8 mA)
4 s (during power up I
a
10.4 Power supply
See "Overview" on page 12.
U = 12 to 35 V, polarity protected (For hazardous location please see control drawing)
b
≤ 3 V at U
Allowable ripple U
ss
10.5

Performance characteristics

1 s
Calibration temperature: 73.4 °F ± 9 °F (+23 °C ± 5 °C)
Type
Pt100, Ni100
Resistance thermometer
Pt500, Ni500
RTD
Pt1000, Ni1000
K, J, T, E, L, U
Thermocouple TC N, C, D
S, B, R
Measurement range
10 to 400 Ω
( Ω ) 10 to 2000 Ω
Resistance transmitter
Voltage transmitters -10 to 75 mV
(mV)
a.% is related to the adjusted measurement range. The value to be applied is the greater.
≥ 13 V, f
= 1 kHz
b max.
10 Technical Data
1
Measurement accuracy
0.36 °F (0.2 °C) or 0.08%
0.9 °F (0.5 °C) or 0.20%
0.54 °F (0.3 °C) or 0.12%
typ. 0.9 °F (0.5 °C) or 0.08%
typ. 1.8 °F (1.0 °C) or 0.08%
typ. 3.6 °F (2.0 °C) or 0.08%
a
Measurement accuracy
± 0.1 Ω or 0.08%
± 1.5 Ω or 0.12%
± 20 µ V or 0.08%
31