wtw LF 538 User Manual

Contents Contents
6
BA51101/11.95/Pro/LF538-1
BA51101/11.95/Pro/LF538-1
7
Recommended basic equipment LF 538........................................8
Instruction manual
Microprocessor conductivity meter LF 538 ...................9
Definition of control elements ......................................................10
Display.................................................................................................................10
Keyboard .............................................................................................................12
Sockets................................................................................................................13
Putting into operation ...................................................................14
Mains power supply.............................................................................................14
Switching on / Display test ..................................................................................15
Measurement .................................................................................16
Conductivity measurement ..................................................................................16
Setting the cell constant C...................................................................................17
Setting of the temperature function TC................................................................19
Salinity measurement ..........................................................................................21
Measurement of total dissolved solids (TDS) .....................................................22
Selecting the reference temperature ..................................................................23
Switch-over of measuring range selection (automatically/manually)...................24
Memory for measured values ......................................................26
Storage ................................................................................................................26
Readout ...............................................................................................................27
Erasure ................................................................................................................28
Analog output ...............................................................................29
Serial interface ..............................................................................30
Automatic transmission of measured values .......................................................31
Measured value transmitted by keypressing .......................................................31
Readout of memory .............................................................................................32
Platinizing the measuring cell .....................................................33
RESET function .............................................................................34
Maintenance / Cleaning.................................................................35
Maintenance ........................................................................................................35
Cleaning...............................................................................................................35
Troubleshooting ............................................................................36
Technical data................................................................................41
Measuring cells and accessories for the LF 538......................... 47
Conductivity cells and temperature sensors........................................................47
Recommended accessories.................................................................................48
Spares..................................................................................................................49
Instruction manual
Standard conductivity cell TetraCon
®
325................... 50
Construction.................................................................................. 50
Operation / Maintenance............................................................... 51
Cleaning...............................................................................................................51
Aging of the TetraCon
®
325 cell..........................................................................52
Disposal...............................................................................................................52
Plug arrangement.......................................................................... 53
Technical data ............................................................................... 55
Application report: "Control of conductivity systems
acc. to ISO 9000, GLP requirements"..................................60

wtw LF 538 Specifications

General

Brand	wtw
Model	LF 538
Category	Measuring Instruments
Language	English