Power Supply Operative Limits; Ped Information Integration - ABB 364G Series Manual

Power supply operative limits

The transmitter operates on a minimum voltage of 10.5 Vdc to a maximum of 42 Vdc and is protected
against polarity inversion.
Note The transmitter operates from 10.5 to 42 Vdc with no load (additional load allows operation over
42 Vdc). For EEx ia and intrinsically safe (FM, CSA and SAA) approval power supply must not exceed
30 Vdc. In some countries the maximum power supply voltage is limited to a lower value.
Minimum operating voltage is 15.3 Vdc if on terminals for external meter neither link nor remote indicator is
present.
The total loop resistance is indicated in the expression below.
R (kohm) = (Supply voltage - Minimum operating voltage) / 22.5 mA
The total lo op resistance is the su m of the re sistance of all element s of the loop , including wiring,
conditioning resistor, safety barriers a nd additional indicators (excluding the equivalent re sistance of the
transmitter). Where a con figuration device (HART), such as the Han d Held Communicator or a Modem is
likely to be u sed, a resistance of 250 ohm minimum should be present between the power supply and the
point of insertion of these devices, to allow communication.
Several types of safety b arriers, either passive or a ctive, can be satisfactorily used in conjunction with the
364 pressure transmitter models. Nevertheless, in case of use of active barriers, check with the sup plier if
the model is suitable for use with smart transmitters allowing the connection of the configuration devices in
the "safe" or non-hazardous area.

PED information integration

Compliance with pressure equipment directive (97/23/EC)
Devices with PS ≤ 200 bar (20 MPa)
Devices with a permi ssible pressure ≤ 200 ba r (20 MPa) co nform to sec. 3 para. (3) a nd
were not tested for conformity. The devices were constructed and manufactured according
to valid sound engineering practice (SEP).
The CE marking on the device does not apply to the pressure equipment directive.
The name plate then contains the following identification codes: PED: SEP.
Ambient Temperature limits °C (°F):
Transmitters with Silicone oil filling:
Lower ambient limit for LCD indicators:
Upper ambient limit for LCD indicators:
Process Temperature limits °C (°F):
Transmitters with Silicone oil filling:
Storage Temperature limits °C (°F):
Lower limit
Upper limit
Relative Humidity
Overpressure limits (without damage to the transmitter)
Lower limit
Upper limit
between –40°C and +85°C (between -58°F and +185°F)
–20°C (–4°F)
+70°C (+158°F)
between -40°C and +121°C (between -58°F and +250°F)
–50°C (–58°F); –40°C (–40°F) for Digital LCD Integral Display
+85°C (+185°F)
Up to 75%
0.0 kPa abs, 0.0mbar abs, 0.00 psia
0.5MPa, 5bar, 72.5psi for sensor code L
364Ax-Gx Instruction Manual
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