ABB TTH300 Series, Руководство по эксплуатации

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8
TTH300
HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. G
… 2 Use in potentially explosive atmospheres in accordance with ATEX and IECEx
Temperature data
Transmitter
ATEX / IECEx intrinsic safety, ATEX non-sparking and increased
safety
Temperature class Permissible ambient temperature range
T6 −50 to 56 °C (−58 to 132.8 °F)
T4-T1 −50 to 85 °C (−58 to 185.0 °F)
LCD indicator
ATEX / IECEx intrinsic safety, ATEX non-sparking and increased
safety
Temperature class Permissible ambient temperature range
T6 − 50 to 56 °C
(−58 to 132.8 °F)
T4-T1 − 50 to 85 °C
(−58 to 185 °F)
Electrical data
Transmitter
Intrinsic safety type of protection Ex ia IIC (part 1)
Power supply circuit*
TTH300-E1H
TTH300-H1H
TTH300-E1P/-H1P
TTH300-E1F/-H1F
FISCO 1 ENTITY
Max. voltage U
i
= 30 V U
i
≤ 17.5 V U
i
≤ 24.0 V
Short-circuit current I
i
= 130 mA I
i
≤ 183 mA 2 I
i
≤ 250 mA
Max. power P
i
= 0.8 W P
i
≤ 2.56 W 2 P
i
≤ 1.2 W
Internal inductance L
i
= 160 μH 3 L
i
≤ 10 μH L
i
≤ 10 μH
Internal capacitance C
i
= 0.57 nF
4
C
i
≤ 5 nF C
i
≤ 5 nF
1 FISCO according to 60079-27
2 II B FISCO: Ii ≤ 380 mA, Pi ≤ 5.32 W
3 For HART variant only. From Hardware Rev. 02.00.00, previously 0.5 mH
4 For HART variant only. From hardware revision 1.07, previously 5 nF
Intrinsic safety type of protection Ex ia IIC (part 2)
TTH300-E1H, TTH300-H1H
Measurement current circuit
Resistance
thermometers,
resistors
Thermocouples, voltages
Max. voltage U
o
= 6.5 V U
o
= 1.2 V
Short-circuit current I
o
= 17.8 mA* I
o
= 50 mA
Max. power P
o
= 29 mW** P
o
= 60 mW
Internal inductance L
i
≈ 0 mH (negligible) L
i
≈ 0 mH (negligible)
Internal capacitance C
i
= 49 nF C
i
= 49 nF
Maximum permissible
external inductance L
o
= 5 mH L
o
= 5 mH
Maximum permissible
external capacitance C
o
= 1.55 μF C
o
= 1.05 μF
* From Hardware Rev. 02.00.00, previously 25 mA
** From Hardware Rev. 02.00.00, previously 38 mW