Endress+Hauser LPGmass, Руководство пользователя

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LPGmass
Hauser 7
Ex connection data These values only apply for the following device version:
Order code for "Output", option M "Modbus RS485", for use in intrinsically safe areas
Safety Barrier Promass 100
Safety-related values
Terminal numbers
Supply voltage Signal transmission
2 (L-) 1 (L+) 26 (A) 27 (B)
U
nom
= DC 24 V
U
max
= AC 260 V
U
nom
= DC 5 V
U
max
= AC 260 V
Intrinsically safe values
Terminal numbers
Supply voltage Signal transmission
20 (L-) 10 (L+) 62 (A) 72 (B)
U
o
= 16.24 V
I
o
= 623 mA
P
o
= 2.45 W
With IIC
1)
: L
o
= 92.8 µH, C
o
= 0.433 μF, L
o
/R
o
= 14.6 μH/Ω

For an overview and for information on the interdependencies between the gas group - sensor - nominal
diameter, see the "Safety Instructions" (XA) document for the measuring device
1) The gas group depends on the sensor and nominal diameter.
Transmitter
Intrinsically safe values
Order code for
"Approval"
Terminal numbers
Supply voltage Signal transmission
20 (L-) 10 (L+) 62 (A) 72 (B)
• Option BM : ATEX II2G + IECEx Z1 Ex ia, II2D Ex tb
• Option BU : ATEX II2G + IECEx Z1 Ex ia
• Option C2 : CSA C/US IS Cl. I, II, III Div. 1
• Option MM : INMETRO Ex ia Zone 1
• Option NG : NEPSI Ex ia Zone 1
• Option 85 : ATEX II2G + IECEx Z1 Ex ia + CSA C/US
IS Cl. I, II, III Div. 1
U
i
= 16.24 V
I
i
= 623 mA
P
i
= 2.45 W
L
i
= 0 µH
C
i
= 6 nF

For an overview and for information on the interdependencies between the gas group - sensor - nominal
diameter, see the "Safety Instructions" (XA) document for the measuring device
Low flow cut off The switch points for low flow cut off are user-selectable.
Galvanic isolation The following connections are galvanically isolated from each other:
• Outputs
• Power supply
Protocol-specific data Modbus RS485
Protocol Modbus Applications Protocol Specification V1.1
Device type Slave
Slave address range 1 to 247
Broadcast address range 0