KROHNE OPTIFLUX 4000 F, Руководство пользователя

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Hazardous area supplement to the QuickStart
1 OPTIFLUX
1. Introduction
1.1 Description of
system
The OPTIFLUX flowmeter system consists of a flow sensor and a flow converter.
The separate flowmeter is identified as:
•
OPTIFLUX 4000 F flow sensor with IFC 300 F signal converter; see KEMA 04 ATEX 2125 X with KEMA 04 ATEX
2166
•
OPTIFLUX 5000 F flow sensor with IFC 300 F signal converter; see KEMA 04 ATEX 2126 X with KEMA 04 ATEX
2166
The compact flowmeter in compact configuration is identified as:
•
OPTIFLUX 4300 C (= OPTIFLUX 4000 + IFC 300 C); see KEMA 04 ATEX 2077 X
•
OPTIFLUX 5300 C (= OPTIFLUX 5000 + IFC 300 C); see KEMA 04 ATEX 2127 X
1.2 OPTIFLUX 4300 OPTIFLUX 4000-EEx is certified as category 2 GD equipment for gas hazardous areas zone 1 and 2, gas group IIC,
temperature classes T6 (or T5) ... T3 and dust hazardous areas zone 21 and 22 surface temperature T85°C … 180°C.
The connection box contains terminals for the connection of the field current and electrode circuits:
Field current circuits , in type of protection "Increased safety" (EEx e), terminals 7,8 and 9: U < 40 V (switched DC voltage,
alter40 and -40 V), I = 125 mA (injected square wave current)
Electrode terminals , in type of protection "Intrinsic safety" (EEx ia), terminals 1, 2, 3, and 4: Ui = 20 V , Ii = 175 mA, Ci ≈ 0
nF, Li ≈ 0 mH.
Connection box, electrode terminals 1, 2, 20, 3, 30, 4 and 40: EEx ia (Intrinsic Safety)
Connection box, field coil terminals 7, 8 and 9: EEx e (Increased safety)
The cable gland for the electrode circuits is - as intrinsic safe circuit - marked with a blue O-ring.
The electrode circuits are always EEx ia.
OPTIFLUX 4300 C-EEx is certified as a group II, category 2 GD equipment, if fitted with an IFC 300-EEx converter unit
without EEx ia signal in/outputs or A group II, category 2 (1) GD equipment, if fitted with an IFC300-EEx converter unit with
EEx ia signal in/outputs.
It is therefore suitable for installation in gas hazardous areas zone 1 or 2 and dust hazardous areas zone 21 or zone 22.
Additionally, the EEx ia signal inputs/outputs of the IFC 300-EEx converter may run or originate from a Zone 0 Gas
hazardous area.
EEx marking OPTIFLUX 4000
DN range
10-20
II 2 GD EEx me ia IIC T6..T3 T85..150°C
25-150
II 2 GD EEx de ia IIC T6..T3 T85..180°C
200-300
II 2 GD EEx qe ia IIC T6..T3 T85..150°C
350-3000
II 2 GD EEx e ia IIC T6..T3 T85..160°C
Optional:
25-150 ((EEx qe coils)
II 2 GD EEx qe ia IIC T5..T3 T85..180°C
200-300 (EEx e coils)
II 2 GD EEx e ia IIC T6..T3 T85..160°C