Baumer CombiTemp TFRH Manuel De Mise En Service page 12

CombiTemp™ TFRH/N
7.2 Explosive gas atmospheres zone 2
The TFRH/N can be used in explosion hazardous areas of zone 2 without using Zener barriers.
Approval for TFRH/N-xxxx.x3xx.xxxx.xxxx.xxxx: ATEX II 3G/IECEx Ex ec IIC T5...T4
All TFRH/N with protection class ec
Comply with the following temperatures and
f„
connection values.
7.3 Simple apparatus (no display, no transmitter)
The TFRH/N without transmitter (Pt100 output) and without display can be used in explosion hazardous
areas of zone 0, 1 and 2. Zener barrier must be used for all zones.
Approval for TFRH/N-xxxx.x9xx.xxxx.xxxx.xxxx: Ex ia simple apparatus Da / Gc
All TFRH/N in Zone 0, zone 1 and zone 2
Use Zener barrier.
f
„
Comply with the following temperatures,
f
„
connection values and circuit diagram.
12 / 54
Temperature measurement
RTD temperature sensor
1
3
2
4
Operating Instructions
Ex ec II T4/T5
Supply range
Temperature class
Ex ia simple apparatus (IEC 60079-11)
Limit values
Temperature class
2-wire
2-wire
3-wire
4-wire
Un: 30 V max.
In: 100 mA max.
T1 ... T4: –20 ≤ Tamb ≤ 70 °C
„ „
T5: –20 ≤ Tamb ≤ 60 °C
„„
Ui: 15 V
Ii: 50 mA
Pi: 25 mW
Li: 0 μH
Ci: 0 nF
T1 ... T5: –40 ≤ Tamb ≤ 75 °C
„ „
T6: –40 ≤ Tamb ≤ 60 °C
„„
Function
Pin
Pt100 11 1, 2
Pt100 12 3, 4
www.baumer.com