PCE Instruments PCE-SCI-L Bedienungsanleitung

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ISOLATED

SIGNAL

CONVERTER

Weight

Load cell mV

PCE-SCI-L

USER’S MANUAL

PCE Instruments

SIGNAL CONVERTER PCE-SCI-L

Signal converter for load cells and millivolts, isolated, industrial applications

1. How to order

1. How to order . . . . . . . . . . . . . . . . . . . . . . . . .2

2. Material included . . . . . . . . . . . . . . . . . . . . . . 2

3. Additional information. . . . . . . . . . . . . . . . . . . . 2

4. Installation and start-up . . . . . . . . . . . . . . . . . . . 3

5. SOS mode . . . . . . . . . . . . . . . . . . . . . . . . . . 3

6. Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 3

7. Practical load cell information . . . . . . . . . . . . . . . . 4

7.1 Number and type of cells accepted 4

7.2 Load cell and ‘sense’ wires 4

7.3 Millivolt mode 4

7.4 Load cell with external power 4

7.5 Connecting the cell to the ground 4

7.6 Connections with a junction box 5

7.7 How to calculate the input signal range 5

7.8 Connections with 3 or 4 load cells 5

8. Predened conguration codes . . . . . . . . . . . . . . .6

9. Connections and dimensions (mm (inch)) . . . . . . . . . . 7

10. Input signals . . . . . . . . . . . . . . . . . . . . . . . . 8

10.1 Load cell signals 8

10.2 Millivolts signals 9

11. Technical specications . . . . . . . . . . . . . . . . . 10

12. How to operate the instrument . . . . . . . . . . . . . . 12

12.1 Conguration system 12

12.2 ‘Normal mode’ of operation 12

12.3 How to operate the ‘Conguration menu’ 12

12.4 How to operate the ‘Force’ menu 13

12.5 How to activate the ‘Messages’ function 13

12.6 Fast and advanced congurations 13

13. Conguration menu. . . . . . . . . . . . . . . . . . . . 14

13.1 Function codes 14

13.2 Initial conguration 14

13.3 Output range 14

13.4 Advanced scaling 15

13.5 Field correction 16

13.6 Display information 16

13.7 Key ‘UP’ (‘force’ menu) 17

13.8 Key ‘LE’ (‘messages’ function) 17

13.9 ‘Tools’ menu 18

14. Full conguration menu. . . . . . . . . . . . . . . . . . 20

15. Factory default parameters. . . . . . . . . . . . . . . . 22

16. Error codes . . . . . . . . . . . . . . . . . . . . . . . . 22

17. Precautions on installation. . . . . . . . . . . . . . . . 23

18. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 23

19. CE declaration of conformity . . . . . . . . . . . . . . . 23

INDEX

USER’S MANUAL

The instrument is provided with the following elements:

• 1 x instrument PCE-SCI-L

• 4 x plug-in screw terminals

• 1 x quick installation guide

2. Material included

User’s Manual

Datasheet

Quick installation guide

CE declaration

Warranty

Web www.pce-instruments.com

3. Additional information

When the marks ‘Attention’ or ‘Risk of electrical shock’

appear, read the documentation for information about the

nature of the risk.

Reference Description

PCE-SCI-L Signal converter for load cells

Isolated signal converter for load cell signals and millivolts. Provides +5 Vdc excitation voltage to power the load cell, and ‘sense’ function to compensate for

excitation voltage variations. Accepts direct connection of 1, 2 3 or up to 4 load cells (typical 350 Ohm load cells). Accepts 4 and 6 wire load cells. Accepts

unipolar and bipolar ranges up ±80 mV.

Congurable output in 4/20 mA (active or passive) or 0/10 Vdc. Universal

power supply from 18 to 265 Vac/dc. 3 way isolation between input, output

and power circuits. Circuit isolation prevents ground loops and transient

propagation, protecting remote equipment and signal integrity.

Predened conguration codes available for fast and easy conguration.

Advanced conguration menu available to customize input and output

signal ranges to specic values required. ‘Tare’ function accessible from

front keypad. Conguration through front push-button keypad. Front display

available for conguration and system information (tare value, input signal

value, output signal value, congured label, signal percentage, process

value, excitation voltage and excitation current values).