Flintec EA250 User Manual ea250-e-aa-man-en-1.0.0
EA250 Manual
Contents
Chapter 1 Introduction to EA250 .................................................................................................... 2
The Strain Gauge Amplifier EA250..................................................................................................... 2
Figure 1.1 EA250 Signal Conditioner .................................................................................................. 2
Chapter 2 Installing the EA250 ....................................................................................................... 3
Pre Installation............................................................................................................................ 3
Figure 2.1 Dimensions ................................................................................................................... 3
Cabling ..................................................................................................................................... 4
Power Connection ........................................................................................................................ 4
Figure 2.2 Power Connection........................................................................................................... 4
Figure 2.3 IS1224 Module Connections................................................................................................ 4
Figure 2.4 Input (Sensor) Connections ................................................................................................ 5
Table 2.1 ................................................................................................................................... 5
Output Connections ...................................................................................................................... 6
Figure 2.5 Output Connections......................................................................................................... 6
Chapter 3 Switch Settings ............................................................................................................. 7
Figure 3.1 Output Settings–Switch 4 .................................................................................................. 7
Table 3.1 Output Option ................................................................................................................ 7
Table 3.2 Switch 4........................................................................................................................ 7
Table 3.3 ................................................................................................................................... 8
Output Filter Settings –Switch 3 ....................................................................................................... 8
Table 3.4 Switch 3........................................................................................................................ 8
Table 3.5 ................................................................................................................................... 9
Output Current Mode and Input Filter Settings – Jumpers JP1, JP2 & JP3 ..................................................... 9
Figure 3.2 .................................................................................................................................. 9
Span (Gain) Setting Switch SW1....................................................................................................... 10
Table 3.6 – SW1 .......................................................................................................................... 10
Table 3.7 .................................................................................................................................. 11
Shunt Calibration Switch SW1/8 ...................................................................................................... 11
Table 3.8 .................................................................................................................................. 11
Figure 3.3 ................................................................................................................................. 11
Zero (Offset) Setting Switch SW2 ..................................................................................................... 12
Table 3.9 .................................................................................................................................. 12
Table 3.10 ................................................................................................................................ 12
Chapter 4 Calibration.................................................................................................................. 13
Output ..................................................................................................................................... 13
Zero Offset ............................................................................................................................... 13
Sensitivity................................................................................................................................. 13
Figure 4.1 Calibration Connections Using a Millivolt Source ..................................................................... 15
Chapter 5 The EA250BCM Bridge Completion Module.......................................................................... 16
Half Bridge................................................................................................................................ 16
Quarter Bridge ........................................................................................................................... 16
Shunt Calibration ........................................................................................................................ 17
Remote Shunt Calibration.............................................................................................................. 18
Chapter 6 Troubleshooting ........................................................................................................... 19
Chapter 7 Product Care ............................................................................................................... 21
Chapter 8 Glossary ..................................................................................................................... 22
Chapter 9 Specifications for EA250 Load Cell Amplifiers...................................................................... 25
CE Approvals.............................................................................................................................. 26
Warranty .................................................................................................................................. 26
Figure 9.1 Connection Details ......................................................................................................... 27
