Siemens Parameterization DS, Parameters Input keys Hart com, MmH2O, ftH2O 20 C, inHg, mmHg

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SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure, flow and level

DS III, DS III PA and DS III FF series

Technical description

of the measuring cell (7), thus protecting the silicon pressure sensor from overloads.

1)Cancel apart from write protection

2)Only differential pressure

Parameterization DS III

Depending on the version, there are a range of options for pa-

2the parameters.

Parameterization using the input keys (local operation)

With the input keys you can easily set the most important param- eters without any additional equipment.

Parameterization using HART communication

Parameterization using HART communication is performed with a HART communicator or a PC.rameterizing the pressure transmitter and for setting or scanning

		+
SITRANS P	230 ... 1100 W	Power supply
transmitter
	HART
	communicator

Communication between a HART communicator and a pressure transm.

When parameterizing with the HART communicator, the connec- tion is made directly to the 2-wire system.

SITRANS P	230 ... 500 W	Power supply
transmitter

PC or

HARTlaptop modem

RS 232

HART communication between a PC communicator and a pressure transmitter

When parameterizing with a PC, the connection is made through a HART modem.

The signals needed for communication in conformity with the HART 5.x or 6.x protocols are superimposed on the output cur- rent using the Frequency Shift Keying (FSK) method.

Adjustable parameters, DS III HART

Parameters	Input keys	HART com-
	(DS III HART)	munication
Start of scale	x	x
Full-scale value	x	x
Electrical damping	x	x
Start-of-scale value without application	x	x
of a pressure ("Blind setting")
Full-scale value without application of a	x	x
pressure ("Blind setting")
Zero adjustment	x	x
Current transmitter	x	x
Fault current	x	x
Disabling of keys, write protection	x	x1)
Type of dimension and actual dimension	x	x
Characteristic (linear / square-rooted)	x2)	x2)
Input of characteristic		x
Freely-programmable LCD		x
Diagnostics functions		x

Diagnostic functions for DS III HART

•Zero correction display

•Event counter

•Limit transmitter

•Saturation alarm

•Slave pointer

•Simulation functions

•Maintenance timer

Available physical units of display for DS III HART

Table style: Technical specifications 2

Physical variable	Physical dimensions
Pressure (setting can also	Pa, MPa, kPa, bar, mbar, torr, atm, psi,
be made in the factory)	g/cm2, kg/cm2, inH	2	O, inH O (4 °C),
			2
	mmH2O, ftH2O (20 °C), inHg, mmHg
Level (height data)	m, cm, mm, ft, in
Volume	m3, dm3, hl, yd3, ft3, in3, US gallon, lmp.
	gallon, bushel, barrel, barrel liquid
Mass	g, kg, t, lb, Ston, Lton, oz
Volume flow	m3/d, m3/h, m3/s, l/min, l/s, ft3/d, ft3/min,
	ft3/s, US gallon/min, US gallon/s
Mass flow	t/d, t/h, t/min, kg/d, kg/h, kg/min, kg/s, g/d,
	g/h, g/min, g/s, lb/d, lb/h, lb/min, lb/s,
	LTon/d, LTon/h, STon/d, STon/h, STon/min
Temperature	K, °C, °F, °R
Miscellaneous	%, mA

Parameterization through PROFIBUS PA interface

Fully digital communication through PROFIBUS PA, profile 3.0, is particularly user-friendly. The PROFIBUS puts the DS III PA is in connection with a process control system, e.g. SIMATIC PSC 7. Communication is possible even in a potentially explosive envi- ronment.

For parameterization through PROFIBUS you need suitable soft- ware, e.g. SIMATIC PDM (Process Device Manager).

Parameterization through FOUNDATION Fieldbus Interface

Fully digital communication through FOUNDATION Fieldbus is particularly user-friendly. Through the FOUNDATION Fieldbus the DS III FF is connected to a process control system. Commu- nication is possible even in a potentially explosive environment.

For parameterization through the FOUNDATION Fieldbus you need suitable software, e.g. National Instruments Configurator.

Adjustable parameters for DS III PA and FF

Parameters	Input keys	PROFIBUS PA and
	(DS III HART)	FOUNDATION
		Fieldbus interface
Electrical damping	x	x
Zero adjustment (correction of	x	x
position)
Key and/or function disabling	x	x
Source of measured-value dis-	x	x
play
Physical dimension of display	x	x
Position of decimal point	x	x
Bus address	x	x
Adjustment of characteristic	x	x
Input of characteristic		x
Freely-programmable LCD		x
Diagnostics functions		x

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