Endress+Hauser Waterpilot FMX21 - Page 27

Waterpilot FMX21 Electrical connection
Endress+Hauser 27
6.1.4 Waterpilot FMX21, RIA15 with installed HART communication resistor module
The HART communication module for installation in the RIA15 can be ordered together
with the device.
Product structure, feature 620 "Accessory enclosed":
• Option R6 "HART communication resistor hazardous / non-hazardous area"
• The voltage drop to be taken into account is max. 7 V
Compensation of the atmospheric pressure must be ensured for the installation. A black,
vented cable gland is supplied for this purpose.
Circuit diagram / Description
Waterpilot FMX21 connection and RIA15
without backlight
1
LED
- +
3
2
Y
I
R
s
DC
A0020839
 3 Waterpilot FMX21 block diagram, RIA15 without
light, HART communication resistor module
1 HART communication resistor module
2 Waterpilot FMX21
3 Power supply
Waterpilot FMX21 connection and RIA15
with backlight
1
3
2
Y
I
R
s
DC
LED
- +
A0020840
 4 Waterpilot FMX21 block diagram, RIA15 with light,
HART communication resistor module
1 HART communication resistor module
2 Waterpilot FMX21
3 Power supply
6.1.5 Wire colors
RD = red, BK = black, WH = white, YE = yellow, BU = blue, BR = brown