September 2016
24
Quick Start Guide
Input intrinsically safe parameters:
* Applicable values Ui, Ii are limited by the maximum input power Pi.
* It is not allowed to apply max values of Ui, Ii at the same time.
Special conditions for safe use (X):
1. Power supply of flowmeters with Ex marking 0Ex ia IIC T4 Ga X must
be implemented through intrinsically safe barriers having certificate of
conformity for appropriate subgroups of electrical equipment.
2. Inductance and capacitance of intrinsically safe circuits of flowmeters with Ex
marking 0Ex ia IIC T4 Ga X, with given parameters connecting cables must not
exceed maximum values shown on the intrinsically safe barrier from the side
of explosive zone.
3. When the equipment is installed, particular precautions must be taken to
ensure, taking into account the effect of process fluid temperature, that the
ambient temperature of the electrical housing of the equipment meets the
marked protection type temperature range.
4. When fitted with the 90V transient suppressors, the equipment is not capable
of passing the 500V insulation test. This must be taken into account upon
installation.
5. The enclosure may be made from aluminium alloy with a protective
polyurethane paint finish; however, care should be taken to protect it from
impact or abrasion when located in Zone 0.
N8 Type of protection «n» and "intrinsically safe" level «ic»
Ex marking:
2Ex nA ic IIC T5 Gc X (-40°C Ta 70°C)
Electrical parameters:
The maximum DC voltage (with output 4-20 mA HART/pulse) 42V
Special conditions for safe use (X):
1. When the equipment is installed, particular precautions must be taken to
ensure, taking into account the effect of process fluid temperature, that the
ambient temperature of the electrical housing of the equipment meets the
marked protection type temperature range.
2. When fitted with the 90V transient suppressors, the equipment is not capable
of passing the 500V insulation test. This must be taken into account upon
installation.
K8 Combination of E8, I8, N8
Intrinsically safe
parameters
Output signal
4-20mA/HART
Pulse
Ui,* V 30
Ii,* mA 185
Pi,* W 1
Li, uH 970
Ci, nF 0
To Next Page
Loading...
