ABB 4690 Series Manual
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ABB MEASUREMENT & ANALYTICS | INFORMATION | INF11/066-EN REV. A
4690 series
Turbidity systems
4670 to 4690 turbidity system upgrade
1 Introduction
This publication details the upgrade of a 4670 turbidity system
to a 4690 system (for use with 7998 sensors). The system is
upgraded by replacing the EPROM and the procedure must be
carried out by a trained technician.
The replacement EPROM kit options are shown in Table 1:
Description Part No. Qty
Standard (1 analog output)
(containing EPROM part no. 46903000)
7998 040 1
Additional analog output
(containing EPROM part no. 46903001)
7998 041 1
Modbus®
(containing EPROM part no. 46903002)
7998 042 1
Modbus® + Net Tap
(containing EPROM part no. 46903003)
7998 043 1
This publication (supplied with each kit) –
4670 to 4690 turbidity system upgrade
INF11/066–EN 1
Table 1 EPROM kit options
Modbus is a registered trademark of the Modbus-IDA organization
2 Tools required
• No. 2 Pozidriv screwdriver
• EPROM extraction tool
• EPROM insertion tool
24690 SERIES | 4670 TO 4690 TURBIDITY SYSTEM UPGRADE | INF11/066-EN REV. A
3 EPROM replacement
Wall-mount transmitter
WARNING
Remove all power from supply, relay and any powered
control circuits and high common mode voltages before
accessing the EPROM.
CAUTION
The transmitter is vulnerable to electrostatic damage. Wear
an anti-static strap or dismantle the unit on an anti-static
workbench.
1 Isolate the transmitter from the power supply.
2 Referring to Figure 1:
a Slide cover 1down, pull out slightly and slide off.
b Release 4 captive screws 2and remove protection
cover 3.
c Remove 2 screw caps 4(if fitted).
d Remove 6 front panel screws 5and remove front
panel 6.
Figure 1 Removing the front cover – wall-mount transmitter
3 Referring to Figure 2:
a Locate EPROM 7.
b If required, remove personality module 8.
c Remove EPROM using extraction tool.
d Using EPROM insertion tool, position replacement EPROM
carefully in socket ensuring notches in EPROM and socket
9are aligned and that EPROM pins locate correctly in the
holes in the socket.
e Press EPROM fully home.
f Refit personality module 8(if removed at step 2).
8
7
9
Figure 2 Replacing the EPROM – wall-mount transmitter
4 Referring to Figure 1:
a Refit front panel 6and secure with 6 front panel
screws 5.
b Refit 2 screw caps 4(if fitted).
c Refit protection cover 3and secure with 4 captive
screws 2.
d Refit cover 1.
5 Restore the power supply to the transmitter.
6 Configure the transmitter – see Section 4, page 3.
4690 SERIES | 4670 TO 4690 TURBIDITY SYSTEM UPGRADE | INF11/066-EN REV. A 3
Panel-mount transmitter
WARNING
Remove all power from supply, relay and any powered
control circuits and high common mode voltages before
accessing the EPROM.
CAUTION
The transmitter is vulnerable to electrostatic damage. Wear
an anti-static strap or dismantle the unit on an anti-static
workbench.
1 Isolate the transmitter from the power supply.
2 Referring to Figure 3:
a Release captive screw 1.
b Remove transmitter 2from its case.
Figure 3 Removing the transmitter from its case
3 Referring to Figure 4:
a Locate EPROM 3.
b Remove EPROM using extraction tool.
c Using EPROM insertion tool, position replacement EPROM
carefully in socket ensuring notches in EPROM and socket
4are aligned and that EPROM pins enter the holes in the
socket.
d Press EPROM fully home.
,
4
3
Figure 4 Replacing the EPROM – panel-mount transmitter
4 Referring to Figure 3, refit transmitter 2to its case and
secure with captive screw 1.
5 Restore the power supply to the transmitter.
6 Configure the transmitter – see Section 4.
4 Completion
Referring to the User Guide (IM/4690 – EN):
1 Select the sensor type – see Section 8.3.
2 Calibrate the sensor – see Section 7.
INF11/066-EN Rev. A 08.2019
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We reserve the right to make technical changes or modify the contents of this document
without prior notice. With regard to purchase orders, the agreed particulars shall prevail.
ABB does not accept any responsibility whatsoever for potential errors or possible lack of
information in this document.
We reserve all rights in this document and in the subject matter and illustrations contained
therein. Any reproduction, disclosure to third parties or utilization of its contents – in
whole or in parts – is forbidden without prior written consent of ABB.
© ABB 2019
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ABB Limited
Measurement & Analytics
Oldends Lane, Stonehouse
Gloucestershire, GL10 3TA
UK
Tel: +44 (0)1453 826 661
Fax: +44 (0)1453 829 671
Email: instrumen[email protected]om
ABB Inc.
Measurement & Analytics
125 E. County Line Road
Warminster, PA 18974
USA
Tel: +1 215 674 6000
Fax: +1 215 674 7183
abb.com/measurement
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