Electrical Power Limitation; Transmitter With And Without Indicator; Measuring Inset Without Transmitter; Operating Temperature Range - ABB TSHD Sicherheitsrelevante Montagehinweise

Groups
The type examination PTB 99 ATEX 1144 was executed for potentially explosive atmospheres
of group IIC according to EN 50014:1997, EN 50018:1994, EN 50284:1997, and EN 1127-
1:1997.
Temperature class
The devices are normally marked with temperature class T6. Higher operating temperatures
are possible in case of potentially explosive atmospheres permissible for temperature class
T5 or T4. Operating temperature ranges are defined in section 2.3.

2.2 Electrical power limitation

2.2.1 Transmitter with and without indicator

Rated supply voltage
Maximum supply voltage
Maximum thermal / electrical power
Maximum current of power supply
Rated current of fuse
Number of electric transmitters/indicators

2.2.2 Measuring inset without transmitter

Rated supply voltage
Maximum supply voltage
Maximum thermal / electrical power
Maximum measuring current of TTDs
Maximum output voltage of TCs
Maximum current of power supply
Rated current of fuse
Number of sensor elements

2.3 Operating temperature range

2.3.1 RTDs and TCs

Lower operating temperature
Upper operating temperature
Connection head AGL, AGLH, AGLHD within zone 1: see Table 2-1
extension tube within zone 1:
measuring inset within zone 1:
measuring inset with appropriate thermowell or
protection tube within zone 0:

2.3.2 Field housings AGLF, AGLFH, AGLFD within zone 1

Lower operating temperature:
Upper operating temperature:
42/10-55 XU Temperature Sensor TSHD (SensyTemp Exd)
UB ≤ 60 V AC
oder 60 V DC
eff
U = U + 10%
Bmax B
P determined according to Table 2-1
max
(overall power consumption of all electric
components)
I = P / U
max max Bmax
≤ I
/ 1,7
max
0 to 2
UB ≤ 10 V AC
oder 10 V DC
eff
U = U + 10%
Bmax B
P determined according to Table 2-2 and
max
Table 2-3 (overall power consumption of all
electric components)
below 2 mA each sensor element
below 100 mV each sensor element
I = P / U
max max Bmax
≤ I
/ 1,7
max
1 to 3
- 35°C
see Table 2-1
see Table 2-2
see Table 2-3
- 35°C
see Table 2-1
GB3