MOBILTEX® DATA LTD.
Calgary, Alberta
www.corTalk.com
TITLE:
RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
SHEET:
16 of 53
REV:
1.14
5.2 Measurement Type Wiring
The RMU1 can be wired in several different pre-defined configurations for single coupon, dual coupon, separate AC
and DC coupons, and bond monitoring. The diagrams in the following pages illustrate typical installations for each
measurement type. Each measurement type diagram contains a table indicating the six measurement points (Slots) that
are transmitted to the corView server.
Note that for pipe-to-soil measurements, as shown in the installation diagrams, the readings sent to corView will be
negative. Also note that the RMU1 measurement inputs must not be directly connected to mains AC power.
The following ranges apply to measured signals:
Potential:
+/-31VDC, 22VAC
Coupon Current: +/-6mADC, 4.25mAAC Low Range
+/-60mADC, 42.5mAAC Med Range
+/-200mADC, 140mAAC High Range
Bond Shunt:
+/-6mVDC, 4.25mVAC Low Range
+/-60mVDC, 42.5mVAC Med Range
+/-200mVDC, 140mVAC High Range
RMU1 Single Coupon
CP Coupon
Structure
Reference
Cell
DATA
SLOT
DESCRIPTION
1
Coupon DC Potential
2
3
4
Coupon AC Potential
Coupon Instant Disconnect DC Potential
Coupon AC Current Density
5
6
Coupon DC Protection Current
Depolarized Coupon DC Potential
LCD ICONS
COUPON DC V
COUPON AC V
COUPON INSTANT DISCONNECT DC V
COUPON CURRENT AC A/m2
COUPON CURRENT DC A/m2
COUPON DEPOLARIZED DC V
Figure 7 Single Coupon Wiring Diagram (CP33)
