Emerson Process Management 644H Marine Instruments User Manual


 
Quick Start Guide
23
May 2014
When Options select Enhanced Performance
Terminals of power supply (+, -)
Terminals of sensor (1,2,3,4)
3. This product complies to the requirements for FISCO field devices specified in
IEC60079-27: 2008. For the connection of an intrinsically safe circuit in accordance
FISCO model, FISCO parameters of this product are as above.
4. The product should be used with Ex-certified associated apparatus to establish
explosion protection system that can be used in explosive gas atmospheres. Wiring and
terminals should comply with the instruction manual of the product and associated
apparatus.
5. The cables between this product and associated apparatus should be shielded cables
(the cables must have insulated shield). The shielded has to be grounded reliably in
non-hazardous area.
6. End users are not permitted to change any components insides, but to settle the
problem in conjunction with manufacturer to avoid damage to the product.
7. During installation, use and maintenance of this product, observe the following
standards:
GB3836.13-1997 “Electrical apparatus for explosive gas atmospheres Part 13: Repair
and overhaul for apparatus used in explosive gas atmospheres”
GB3836.15-2000 “Electrical apparatus for explosive gas atmospheres Part 15: Electrical
installations in hazardous area (other than mines)”
GB3836.16-2006 “Electrical apparatus for explosive gas atmospheres Part 16:
Inspection and maintenance of electrical installation (other than mines)”
GB50257-1996 “Code for construction and acceptance of electric device for explosion
atmospheres and fire hazard electrical equipment installation engineering”
Maximum input
voltage:
U
i
(V)
Maximum input
current:
I
i
(mA)
Maximum input
power:
P
i
(W)
Maximum internal
parameters:
C
i
(nF) L
i
(mH)
30
150 (T
a
+80 °C)
0.67/0.8 3.3 0170 (T
a
+70 °C)
190 (T
a
+60 °C)
Maximum
output voltage:
U
o
(V)
Maximum
output current:
I
o
(mA)
Maximum
output power:
P
o
(W)
Gas
group
Maximum internal
parameters:
C
o
(nF) L
o
(mH)
13.6 80 0.08
IIC 0.816 5.79
IIB 5.196 23.4
IIA 18.596 48.06