Pressure And Temperature Limits; Operating Voltage Limits - ABB 2600T Series Instructions For Installation Manual

PHASE 1 - PRELIMINARY CHECKS
2.2

PRESSURE AND TEMPERATURE LIMITS

The maximum allowable pressure (PS) and maximum/minimum
allowable temperature (TS) of the pressure transmitter, for
the European market are indicated on the tag plate (ref. D of
Figure 1), in the U.S. please refer to the instrument data sheets
available at: http://138.221.224.36 searching for "264 and
sheet" or from local ABB representatives.
PS and TS are defined according to the European Pressure
Equipment Directive 97/23/EC (PED). For Temperature, the
listing is for the min and max process temperature limits at
which the instrument can be exposed, for Pressure this listing
should be considered the maximum working pressure limit to
which the transmitter can be exposed without damage (to the
transmitter). These limits are valid when the transmitter is
installed according to the instructions in this manual.
WARNING ! - For potentially explosive atmosphere
applications see the temperature range specified in the
certificate/approval relevant to the intended type of
protection.
PS values
models 268HS, 268NS
- 14MPa, 140bar, 2030psi for sensor codes E, G, H, M
- 21MPa, 210bar, 3045psi for sensor codes P, Q, S
Proof pressure
The transmitter can be exposed without leaking to line pressure
of up to:
models 268HS, 268NS
- 28MPa, 280bar, 4060psi for sensor codes E, G, H, M
- 40MPa, 400bar, 5800psi for sensor codes P, Q, S
Sensor code is the 6 character of the product code on
1 th
label Ref. A
Meet ANSI/ISA–S 82.03 hydrostatic test requirements and
SAMA PMC 27.1.
Other 268Hx and 268Nx models using direct mount and/or
remote seal(s) are compliant to SEP (Sound Engineering
Practice).
WARNING ! - In order to assure the proper
containment of the process fluid by the transmitter, it is
recommended that any part, related to process fluid
containment, be supplied only by ABB or authorized agents.
The spare parts list is available at: http://138.221.224.36
searching for "SL/26*" or from local ABB representatives.
The storage conditions must be within the following limits,
Lower limit: –50°C (–58°F); –40°C (–40°F) for LCD indicators
Upper limit: +85°C (+185°F) otherwise some material such as
gaskets may be damaged and cannot assure proper fluid
containment.
2.3

OPERATING VOLTAGE LIMITS

The transmitter is designed to provide a current transmission
signal of 4 to 20 mA dc on the same wires that are carrying the
power supply (two-wire transmitter).
The transmitter operates on a minimum voltage of 10.5 Vdc to
a maximum of 42 Vdc and is protected against polarity inversion.
The transmitter operates from 10.5 to 42 Vdc with no load.
Some communication problems may occur, in cases the loop
resistance is increased by long wires or additional devices like
meters, safety barriers, surge protection, remote indicators,
etc.. If this is the case, please refer to the reference manual for
1
further details (the manual is available at www.abb.com inserting
1
in the "search" tool the keyword "IM/26X") or from local ABB
representatives.
For EEx ia and intrinsically safe (FM, CSA and SAA) approvals,
the power supply must not exceed 30 Vdc. In some countries
the maximum power supply voltage is limited to a lower value.
The transmitter insulation resistance (terminals to earth) is
1
>100MΩ at 1000VDC.
1
CAUTION Do not arc-weld any pipe-connected to
the transmitter as this could break the electrical insulation
and damage the electronic part of the transmitter.
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