Reference Manual
00809-0100-4130, Rev AA
May 2009
B-19
Rosemount 2130
NEPSI Intrinsically Safe Approval
I3 Certificate:
GYJ081176
Intrinsic Safety:
Ex ia IIC T2-T5
Ui=15 V, Ii=32 mA, Pi=0.1 W, Ci=12 nF, Li=0.06 mH
NOTE
A NAMUR isolating amplifier must be used for intrinsic safety.
The 2130 Series Liquid Level Switch (hereinafter Level Switch), manufactured by
Mobrey Limited, has been certified by the National Supervision and Inspection Center
for Explosion Protection and Safety of Instrumentation (NEPSI).
Level Switch accords with GB 3836.1-2000 and GB 3836.4-2000 standards.
Level Switch has protection type of Ex ia IIC T2~T5.
The user should take note of the following special conditions for safe use:
1. The relationship between ambient temperature range, temperature class, and
maximum temperature of process medium is as follows:
2. Safety parameters: Ui=15 V, Ii=32 mA, Pi=0.1 W, Ci=12 nF, Li=0.06 mH
3. The cable entry of Level Switch should be protected to ensure the degree of
protection of the enclosure to IP 20 (GB4208-1993) at least.
4. The application of Level Switch with non-metallic housing should observe the
warning: “Caution- Risk of electrostatic charge build-up on plastic surfaces. Clean
only with damp cloth”.
5. The cables between Level Switch and associated apparatus should be shielded
cables (the cables must have an insulated shield). The cable core section area
should be greater than 0.5 mm
2
. The shielded has to be grounded reliably. The
wiring has to not be affected by electromagnetic disturbance.
6. Associated apparatus should be installed in a safe location, and during installation,
operation and maintenance, the regulations of the instruction manual have to be
strictly observed.
7. End users are not permitted to change any components inside.
8. During installation, use and maintenance of the Level Switch, the following
standards are to be observed:
• GB3836.13-1997
“Electrical apparatus for explosive gas atmosphere Part 13: Repair and overhaul
for apparatus used in explosive gas atmosphere”.
• GB3836.15-2000
“Electrical apparatus for explosive gas atmosphere Part 15: Electrical
installations in hazardous area (other than mines)”.
• GB3836.16-2006
“Electrical apparatus for explosive gas atmosphere Part 16: Inspection and
maintenance of electrical installation (other than mines)”.
• GB50257-1996
“Code for construction and acceptance of electric device for explosive
atmospheres and fire hazard electrical equipment installation engineering”.
Temperature Class
Ambient temperature
range (°C)
Maximum temperature of
process medium (°C)
T5 (–50~+80) (–70~+80)
T4 (–50~+77) (–70~+115)
T3 (–50~+71) (–70~+185)
T2 (–50~+65) (–70~+260)
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