Siemens ET 78X Series Manual de usuario descargar pdf (Pagina 20)

Technical data (four-wire system)

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Siemens PA 20 · 1999

1/20

SIPAN 34 analyzer

Display

Measured value

Others

With inputs

Illumination

Graphic

Four 15Ćmm digits

or trend display:

5 bars, 3 mm high

Temperature, alarms,

measuringĆpoint identification,

3Ćmm digits

Current output as bargraph,

3 mm high

8 lines of text

1 heading (inverted display) and

6 text lines, letters 4 mm high

LED

Inputs

8 keys: MEAS

HELP

CAL

ESC

▲

▼

ENTER

According to NAMUR

Measurement/trend

Help

Calibration

1 step backwards in menu

Increment the number /

1 line upwards

Decrement the number /

1 line downwards

1 digit to right with numbers

Calling a menu item /

acceptance of entered value

Languages 5: German, English, French, Italian,

Spanish; selectable

Coding 3 coding levels for operations

(display level, user level, specialist

level)

Dimension

mS/cm, mS/cm, S/cm, mS/m, mS/m,

S/m, % w/w, MWcm, kWcm

Measuring range See technical data of sensors

Measuring span

(expansion)

Any, but at least 10% of smallest

measuring range

Output range Optionally selectable between 0 and

maximum fullĆscale value

Measuring range for

temperature

Ć50 to +200

°C

Measuring span for

temperature

Any, but at least 10% of measuring

range

Temperature compensaĆ

tion with conductivity

measurements

Linear TC value, 0 to 10 %/K

NonĆlinear response (max. 9 characĆ

teristics), 2 characteristics defined as

standard for ultraĆpure water and

beer

Temperature compensaĆ

tion with % w/w

Conductivity tables stored for H

oleum, HNO

, HCl, HBr, NaOH, KOH,

NaCl

(see Table 1/1)

Error limits with conducĆ

tivity measurements

< 1.0 % of measuring range

(at rated conditions)

Error limits with temperaĆ

ture compensation

< 1 % for characteristic

(with conductivity)

< 0.5 % of measured value

(for pure liquids)

Influencing effects

Repeatability

Linearity

Ambient temperature

Power supply

Load

Zero error

To DIN IEC 746, Part 1

< 0.2 % of fullĆscale value

< 0.5 % of fullĆscale value

< 0.2 %/10 K

< 0.1 %

< 0.1 %/100 W

< 0.2 % of fullĆscale value

Output signal 0/4 to 20 mA floating, linear to meaĆ

sured value or bilinear to measured

value (2 linear partial ranges with

knee at 10 or 12 mA), see Fig. 1/18

Max. permissible load

750 W

Limit 1 NO or NC contact selectable,

adjustable hysteresis and response

time

Alarm contact 1 alarm (failure)

Relay contacts NO contact, rating AC/DC 24 V, 1 A,

floating, nonĆsparking

Logbook Automatic recording of warning and

failure messages with date and time,

20 entries with overflow,

nonĆerasable

Data storage > 10 years (EEPROM)

Device selfĆtest Testing of RAM, EPROM, EEPROM,

display, keyboard;

data can be called on display

Clock Software clock

Identification CE marking

EMC NAMUR NE 21

Applied harmonized

standards

EN 61010 (IEC 1010)

EN 55022 class B

IEC 1000Ć3Ć2

IEC 1000Ć4Ć2 class 2

IEC 1000Ć4Ć3 class 3(2)

IEC 1000Ć4Ć4 class 4

IEC 1000Ć4Ć5 class 3

IEC 801Ć6 class 3

prIEC 1000Ć4Ć6/1995)

prEN 61000Ć4Ć11 class C

Radio interference supp. EN 55011 and EN 55022

Lightning protection EN 61000Ć4Ć5

Mechanical stress Vibration load of modules to

IEC 68Ć2Ć6

Repetitive shocks to IEC 68Ć2Ć27

Climatic loading IEC 721Ć3Ć3, IEC 721Ć3Ć2

Transport loading IEC 68Ć2Ć6

Electrical safety IEC 1010, IEC 664

Foreign matter/

water protection

IEC 529

Degree of protection

Field device

Panel mounting

IP 65 to EN 60529, NEMA 4X

IP 54 to EN 60529 (front)

Quality assurance system DIN ISO 9001 / EN 29000

Material of field housing

Panel mounting housing

Macrolon (polycarbonate +

20% glass fiber)

Aluminium

Permissible ambient temp.

Operation (field device)

Operat. (panel mounting)

Transport and storage

Ć20 to +55

Ć5 to +70

Ć25 to +85

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