Rosemount 2120 - Page 26

August 2012
26
Quick Start Guide
b. Temperature:
2120***H*I1**, 2120***H*I7**:
Minimum ambient air temperature (Ta) = –40 °C.
Minimum process temperature (Tp) = –40 °C
2120***K*I1**, 2120***K*I7**:
Minimum ambient air temperature (Ta) = –40 °C
Minimum process temperature (Tp) = –40 °C
c. Input parameters:
2120 with NAMUR electronics:
Ui =15 V, Ii = 32 mA, Pi = 0.1 W, Ci = 12 nF, Li = 0.06 mH
2120 with 8/16 mA electronics:
Ui = 30 V, Ii = 93 mA, Pi = 0.65 W, Ci = 12 nF, Li = 0.035 mH
d. Materials: See the 2120 Product Data Sheet 00813-0100-4030 or
Reference Manual 00809-0100-4030.
e. Year of manufacture: printed on product label
9. Special conditions of use:
a. If the enclosure is made of an alloy or plastic material, the following precautions
must be observed:
(i) The metallic alloy used for the enclosure material may be at the accessible
surface of this equipment; in the event of rare accidents, ignition sources due to
impact and friction sparks could occur. This shall be considered when the 2120
is being installed in locations that specifically require Equipment Protection
Level Ga or Da [
ATE X: group II, category 1G equipment] [IECEx: in Zone 0 and 20
locations].
(ii) Under certain extreme circumstances, the non-metallic parts incorporated
in the enclosure of the 2120 may generate an ignition-capable level of
electrostatic charge. Therefore, when they are used for applications that
specifically require Equipment Protection Level Ga or Da [
ATEX: group II,
category 1G equipment] [
IECEx: in Zone 0 and 20 locations], the 2120 shall not
be installed in a location where the external conditions are conducive to the
build-up of electrostatic charge on such surfaces. Additionally, the 2120 shall
only be cleaned with a damp cloth.
Gas (Ga) Dust (Da)
Temperature
Classes
Maximum
Ambient Air
Temperature
(Ta)
Maximum
Process
Temperature
(Tp)
Maximum
Surface
Temperature
(T)
Maximum
Ambient Air
Temperature
(Ta)
Maximum
Process
Temperature
(Tp)
T5, T4, T3, T2, T1
80 °C 60 °C T85 70 °C 60 °C
T4, T3, T2, T1
60 °C 115 °C T120 60 °C 115 °C
T3, T2, T1
50 °C 150 °C T155 50 °C 150 °C
Gas (Ga) and Dust (Da)
Temperature
Classes
Maximum Surface
Temperature (T)
Maximum Ambient Air
Temperature (Ta)
Maximum Process
Temperature (Tp)
T5, T4, T3, T2, T1
T85 °C 80 °C 60 °C
T4, T3, T2, T1
T120 °C 60 °C 115 °C
T3, T2, T1
T155 °C 50 °C 150 °C