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Operating Instructions

Data Logger

ALMEMO

®

 8990-8

For reference with the ALMEMO

®

 Manual

Table of Contents

Page

1  

Introduction

2

1.1 Function 

Range

2

1.2  

Operating Controls                                                

6

2     

Initial Operation                                               

8

3     

Power Supply                                                

9

3.1  

Mains Supply              

9

3.2

Operation with Rechargeable Battery

9

3.3  

External Power Supply                                   

9

3.4 Battery 

Buffer

9

3.5

Switch On/Off, Reinitialisation

10

4   

Connection of the Transducers                                    

10

4.1 Transducers

10

4.2 

Measuring Inputs and Additional Channels

11

5.

Data Acquisition

12

5.1

Manual Measuring Point Scan

12

5.2

Cyclic Measuring Point Scan

12

5.3

Data Memory

13

5.4

Sleep Mode

14

5.5 

Device Address and Networking

14

6

Troubleshooting

15

7

Electromagnetic Compatibility

16

Appendix

Technical Data
Product Overview

   2

ALMEMO

®

 8990-8  

   Table of Contents

Summary of Contents for Almemo 8990-8

Page 1: ...Operating Instructions Data Logger ALMEMO 8990 8 V1 3 03 02 2004...

Page 2: ...ernal Power Supply 9 3 4 Battery Buffer 9 3 5 Switch On Off Reinitialisation 10 4 Connection of the Transducers 10 4 1 Transducers 10 4 2 Measuring Inputs and Additional Channels 11 5 Data Acquisition...

Page 3: ...5 1 The interface module RS232 fiber optics Centronics manual section 5 2 The entire ALMEMO networking system manual section 5 3 All functions and their control via the interface manual section 6 A c...

Page 4: ...n measuring junctions can be programmed as function channels and can be processed and printed like normal measuring junctions Furthermore function channels for special measuring tasks are provided to...

Page 5: ...Measured Value A continuous presentation of measuring data from the selected measuring point is provided and also includes automatic zero point correction and optional correction of the measured value...

Page 6: ...y during data storage Measuring Cycle The measuring cycle also programmable between 1s and 59h 59min 59s is for a cyclic scanning with a display of all measured values limit value monitoring including...

Page 7: ...dressed and can be easily networked by a simple connection with network cables or network junctions for longer distances Software The AMR Control software which allows for the entire programming of th...

Page 8: ...charged without pow supp ON off battery operation active 2 CONNECTOR SOCKET U DC mains adapter ZA 5090 NA2 12V 800mA connector cable ZB 5090 EK 7 13V DC connector cable ZB 3090 UK 10 30V DC electr iso...

Page 9: ...ODING SWITCH setting of the device address module number 0 to 9 external access 2nd coding switch for decades internal on the board 6 FUNCTION KEYS START start automatic measuring point scan STOP and...

Page 10: ...START see 5 1 Enter measuring cycle for cyclic storing see manual 6 5 3 Enter time and date of start and end of measurement if required see man 6 6 2 Start automatic storing with the key START see 5...

Page 11: ...the on off switch 1 is continuously illuminated If the green lamp flashes the battery is completely recharged and the charge circuit is switched to trickle charging As a result the power supply can d...

Page 12: ...n be connected to the ALMEMO input sockets 0 to 8 of the measuring instrument 3 For connecting existing sensors it is only necessary to connect a corresponding ALMEMO connector 4 1 Transducers A detai...

Page 13: ...If required the sensor can also be programmed with several ranges or scalings or depending on the pin assignment 2 or 3 sensors can be combined in one connector e g TE Ntc mV V mA V etc The additional...

Page 14: ...e configuration can be easily changed If a programming via interface is not required the connectors can be ordered factory programmed to customer specifications 5 1 Single Measuring Point Scan If no m...

Page 15: ...ected see manual 5 2 the output channel U must be set manual 6 2 2 and an output format List Column or Spreadsheet must be selected manual 6 5 5 output logs see manual 6 6 1 For starting the memory ou...

Page 16: ...er the first scan Within the set cycle the instrument will switch on perform a measuring point scan the control lamps CYCLE and MEMORY will be illuminated for a short time and the instrument will then...

Page 17: ...for inadmissible electrical connection disconnect all suspicious sensors hold hand held sensors in air or connect dummies and check short circuit AB at thermocouples 100 at Pt100 sensors then reconnec...

Page 18: ...factory in Holzkirchen Germany including a short report and possibly control printouts The software AMR Control allows to print the monitor pages including the programming and also to save the termina...

Page 19: ...ousing metal housing H63 x W144 x D219mm 3HU 6DU Operating temperature 10 60 C Storage temperature 30 60 C Humidity of ambient air 10 90 rH non condensing Extent of the Delivery Measuring Instrument A...

Page 20: ...20 ALMEMO 8990 8 Appendix...

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