Honeywell RMA 3000, Руководство пользователя

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Release 1 34-ST-25-19 RMA 3000 Remote Meter Assemblies User Manual 25
6/04
Specific Parameters
for Intrinsic Safety
At field wiring ter and –: Ui
≤
30 V, Ii
≤
100 mA, Pi
≤
1.2 W
With Analog meter, ME: Ci
≈
0 (negligible), Ri
≈
0, Li
≤
150 µH
With Smart Meter, SM: Ci
≤
18 nF, Ri
≈
0, Li
≈
0 (negligible)
Special conditions for
safe use,
Intrinsic Safety (X)
The RMA 3000, Models RMA300, SM & ME Remote Meter Assemblies are
intrinsically safe apparatus that can be installed in potentially explosive atmospheres.
The power terminals (+, -) must be connected only to a certified associated
intrinsically safe apparatus.
The electrical parameters (U, I, and P) of the associated apparatus connected to the
power terminals (+, -) must not exceed the following values:
Ui
≤
30V Ii
≤
100 mA Pi
≤
1,2 W
Ambient temperature: - 20ºC to 60ºC
Temperature classification: T5 up to Ta
≤
60ºC
Specific Parameters for
Flameproof Installation
Power supply to field wiring terminals, + and –: Ucc
≤
42 V
Output Signal: 4 – 20 mA
Special conditions for
safe use, Flameproof
Installation Ambient operating temperature: -20 to 65ºC
Specific Parameters for
Non-Sparking Zone 2
Installation
(Honeywell certified)
Supply Voltage:
Supply Current:
Ambient Temperate Limits:
Temperature Classification:
11-42 Vdc
23 mA
-20
o
C to 65
o
C
T6 at Ta
≤
65
o
C
Special Conditions for
Safe Use, Non-Sparking
Zone 2 Installation
(Honeywell certified)
• The installation of this equipment in Zone 2 hazardous areas must comply with
VDE specification 0165, IEC 60079-14, EN 50021 and/or valid national standards
for installation and operation.
• Before commissioning of this equipment, it must be verified that the power supply
voltage cannot exceed the 42 Vdc maximum for 4-20 mA analog and DE and
Smart meters.
• The electronic assemblies in these units are non-repairable items and if faulty must
be replaced. The electrical power supply must be switched off before any
replacement and during any time that the wiring terminations are being connected
or disconnected.