Emerson Rosemount 2090P Reference Manual page 94

Rosemount 2088 and 2090
B-8
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N3 China Type n Non - Sparking
NEPSI Cert No. (2088 manufactured in Beijing, China): GYJ101126X
Ex nA nL IIC T5
Special Conditions for Safe Use (x)
1. Symbol "X" is used to denote specific conditions of use: The
apparatus is not capable of withstanding the 500 V test to earth for
one minute. This must be taken into consideration during installation.
2. The ambient temperature range of the device is: -40 °C ≤ Ta ≤ 70 °C.
3. Minimum input voltage is 50 V.
4. Metal cable glands, conduit, or blanking plugs, certified by NEPSI
with Ex e or Ex n protection type should be used on external
connections and redundant cable entries.
5. Maintenance should be done in non-hazardous locations.
6. End users are not permitted to change any internal components.
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 atmosphere"
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"
Combinations of Certifications
Stainless steel certification tag is provided when optional approval is
specified. Once a device labeled with multiple approval types is installed, it
should not be reinstalled using any other approval types. Permanently mark
the approval label to distinguish it from unused approval types.
KB K5 and C6 combination
KH K5, ED, and I1 combination
K5 E5 and I5 combination
K6 C6, I1, and ED combination
K7 I7, N7, E7, and NK combination
K1 I1, N1, ED, and ND combination
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