Electrical Connection In Explosion Hazardous Areas - Baumer CombiTemp TFRH Manuel De Mise En Service

Electrical connection in explosion hazardous areas

7.
DANGER
Risk of fatal accident due to a wrongly connected sensor
Correct gas and dust protection can only be achieved by meeting their installation requirements.
Make sure that all requirements are met and that sensor and installation have a valid approval
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for their specific explosive atmosphere.
Allow only persons trained in explosion protection to perform the installation.
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Never use FlexProgrammer in explosion hazardous areas.
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7.1 Explosive gas atmospheres zone 0, 1 and 2
The TFRH/N can be used with built in FlexTop™ 22xx transmitter in explosion hazardous areas of
zone 0, 1 or 2. Sensors must be installed with Zener barriers. If electrostatic dissipative film on display
cover becomes damaged, discontinue use in zone 0.
Approval for TFRH/N-xxxx.x1xx.xxxx.xxxx.xxxx: ATEX II 1G/IECEx Ex ia IIC T6...T4
All TFRH/N with intrinsic safety protection ia
Use Zener barriers.
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If enabled, protect each relay by a separate Zener barrier or use a barrier with multiple channels.
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Depending on the transmitter type, comply with the following temperatures and connection values.
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Ex ia IIC T5 Ga
FlexTop™
2202
FlexTop™
2212, 2222
Relay outputs
www.baumer.com
With DFON display
Ci: 25 nF
Li: 20 μH
T5: –20 ≤ Tamb ≤ +60 °C
T4: –20 ≤ Tamb ≤ +65 °C
Ci: 26 nF
Li: 34 μH
T5: –20 ≤ Tamb ≤ +60 °C
T4: –20 ≤ Tamb ≤ +65 °C
Ci: 10 nF
Li: 10 μH
T5: –20 ≤ Tamb ≤ +60 °C
T4: –20 ≤ Tamb ≤ +65 °C
Operating Instructions
Temperature measurement
CombiTemp™ TFRH/N
RTD temperature sensor
Without display
Ci: 10 nF
Li: 10 μH
T6: –40 ≤ Tamb ≤ +50 °C
T5: –40 ≤ Tamb ≤ +85 °C
Ci: 11 nF
Li: 24 μH
T6: –40 ≤ Tamb ≤ +56 °C
T5: –40 ≤ Tamb ≤ +71 °C
T4: –40 ≤ Tamb ≤ +80 °C
N/A
1
2
3
4
5
6
Ui: 28 V
Ii: 100 mA
Pi: 700 mW
Ui: 30 V
Ii: 95 mA
Pi: 750 mW
Ui: 30 V
Ii: 75 mA
Pi: 750 mW
Function
Pin
+Vs 1
Iout 2
+ Relay 21 3
–
Relay 22 4
Relay 11 5
Relay 12 6
Relay 2
Relay 1
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