Reference Manual
00809-0100-4690, Rev FC
June 2011
Rosemount 2088 and 2090
B-4
Australian Certifications
I7 SAA Intrinsic Safety
Certification No.: AUS Ex 1249X
Ex ia IIC T4 (T
amb
= 70 °C)
Ex ia IIC T5 (T
amb
= 40 °C)
IP66
When connected per Rosemount drawing 03031-1026
Table B-2. Input Parameters
Special Conditions for Safe Use (X):
Observe barrier/entity parameters during installation. A passive current
limited power source must be used. The power source must be such that
Po (Uo * Io)/4. For modules using transient protection in the terminal
assembly (T1 transient protection models), the apparatus enclosure is to
be electrically bonded to the protective earth. The conductor used for the
connection shall be equivalent to a copper conductor of 4mm
2
minimum
cross-sectional area.
N7 SAA Type n (Non-Sparking)
Certificate No.: AUS Ex 1249X
Ex n IIC T4 (T
amb
= 70 °C)
Ex n IIC T5 (T
amb
= 40 °C)
IP66
Special Conditions for Safe Use (X):
Where the equipment is installed such that there is an unused conduit
entry, it must be sealed with a suitable blanking plug to maintain the IP66
degree of protection. Any blanking plug used with the equipment shall be
of a type which requires the use of a tool to effect its removal. Voltage
source shall not exceed 60 Vac or 75 Vdc.
NK IECEx Dust Ignition Proof
IECEx Certificate number: IECEx KEM 06.0021X
Ex tD A22 IP66 T90°C (-20 °C T
amb
80 °C)
Vmax = 55 Vdc
Ii = 23 mA
Certificate Description
TC15874 2088 with Alloy C-276 wetted parts (with display)
TC15873 2088 with Alloy C-276 wetted parts (no display)
TC15872 2088 with SST wetted parts (with display)
TC15871 2088 with SST wetted parts (no display)
Loop/Power
U
max
= 30 V
I
max
= 200 mA
P
max
= 0.9 W
C
i
= 0.01 F
L
i
= 10 H
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