Power Supply (Polarity Safe); General Information; Ambient Conditions; Electromagnetic Compatibility - ABB TTF350 Operating Instructions Manual

14.3 Power supply (polarity safe)

Wechsel ein-auf zweispaltig
Speisespannung
(2-wire technique; power lines = signal lines)
Supply voltage
Non ignition-proof application with or without LCD display:
U = 11 ... 42 V DC
S
Ignition-proof applications with or without LCD display:
U = 11 ... 30 V DC
S
Max. permissible residual ripple for supply voltage
Max. permissible ripple for supply voltage during communication
in accordance with HART FSK "Physical Layer" specification,
version 8.1 (08/1999) Section 8.1
Undervoltage detection
U < 10 V results in I
Terminal-Mu
Max. load
R = (supply voltage – 11 V) / 22 mA
Load
Max. load Ω) depending on supply voltage (V DC)
1400
1250
1000
B
860
750
500
C
250
11 16
Fig. 30
A TTF350,
B TTF350 in EEx ia design
Max. power consumption
P = U x 22 mA
s
→
e.g., U = 24 V P
s max
Wechsel ein-auf zweispaltig
OI/TTF350-EN
= 3.6 mA
a
A
V DC V DC
30 42
C HART communication -
resistor
= 0.528 W

15 General information

Galvanic isolation
(input/output)
MTBF time
Input filter
Switch-on delay
Warm-up time
Ramp-up time t90
Readingupdated
Output filter
1)
depending on sensor type and sensor circuit
kj

15.1 Ambient conditions

Ambient temperature:
Standard: -40 ... 85 °C / -40 ... 185 °F
Optional: -50 ... 85 °C / -58 ... 185 °F
For use with LCD display HMI type B:
-20 ... 70 °C / -4 ... 158 °F
For ignition-proof design, see prototype test certificate
PTB 05 ATEX 2079 X.
Transport / storage
temperature:
Climate class:
Max. permissible
humidity:
Vibration resistance*: 10 ... 2000 Hz at 5 g acc. to IEC 60068-2-6
Shock*:
Earthquake
resistance:
A00001
Salt fog:
Protection class:
* applies to operation and transport

15.2 Electromagnetic compatibility

Emitted interference in accordance with IEC 61326 (2002) and
Namur NE21 (02/2004)

15.3 Interference immunity

Interference immune in accordance with IEC 61326 (2002) and
Namur NE21 (02/2004)
Pt100: Measuring range 0 ... 100 °C, span 100 K
Type of test
Burst to signal/data lines
Static discharge
• Contact plate (indirect)
• Supply terminals
• Sensor terminals
Radiated field
80 MHz ... 2 GHz
Coupling
150 kHz ... 80 MHz
Surge
between the lines
Line to earth
1)
Air discharge (at 1 mm distance)
TTF350
General information
3.5 kV AC (approx. 2.5 KV DC) 60 s
(insulation test voltage)
28 years at 60 °C ambient
temperature
50 / 60 Hz
< 10 s (I ≤ 3.6 mA during starting
a
cycle)
5 min.
400 ... 1000 ms
1) 10/s with 1 sensor, 5/s with 2 sensors
Digital filter 1st order: 0 ... 100 s
-40 ... 85 °C / -40 ... 185 °F
Cx (-40 ... 85 °C / -40 ... 185 °F, 5 ... 95%
relative humidity) DIN EN 60654-1
99% relative humidity IEC 60068-2-78
gn = 30 in accordance with IEC 60068-2-27
Acc. to EN1473
acc. to IEC 60068-2-11
IP66 and IP67; NEMA 4X, ENCL 4X
Testing
accuracy
2 kV
8 kV
1) 6 kV
4 kV
1)
10 V/m
10 V
0.5 kV
1 kV
Influence
< 0.5%
no
no
no
< 0.5%
< 0.5%
no malfunction
no malfunction
67