Reference Manual
00809-0100-4690, Rev FC
June 2011
Rosemount 2088 and 2090
B-6
Special Conditions for Safe Use
1. Symbol “X” is used to denote specific conditions of use:
• This apparatus is not capable of withstanding the 500 V r.m.s.
insulation test required by Clause 6.4.12 of GB3836.4-2000.
2. The ambient temperature range is:
3. Intrinsically safe parameters:
4. The pressure transmitter should be used with Ex-certified linear
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 pressure transmitter
and associated apparatus.
5. The cable between the pressure transmitter and associated
apparatus should be insulated, shielded cable. The cable shield must
be grounded in a non-hazardous area.
6. End users are not permitted to change internal components. Contact
the manufacturer to avoid damaging the pressure transmitter.
7. During installation, use, and maintenance of the pressure transmitter,
observe the following standards:
a. GB3836.13-1997 “Electrical apparatus for explosive gas
atmospheres Part 13: Repair and overhaul for apparatus used in
explosive gas atmospheres”
b. GB3836.15-2000 “Electrical apparatus for explosive gas
atmospheres Part 15: Electrical installations in hazardous area (other
than mines)”
c. GB3836.16-2006 “Electrical apparatus for explosive gas
atmospheres Part 16: Inspection and maintenance of electrical
installation (other than mines)”
d. GB50257-1996 “Code for construction and acceptance of electric
device for explosion atmospheres and fire hazard electrical equipment
installation engineering”
T Code Ambient Temperature
T5 -55°C T
a
40 °C
T4 -55°C T
a
70 °C
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)
30 200 0.9 112 0
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