Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
33
4.8.2 Connecting Generic mA Device
IR personality type provides for a Generic mA input under sensor type
configuration. The XNX transmitter can be used to convert the mA input to be
read over HART
®
protocol or optional Modbus or Foundation Fieldbus and set
optional relays (if equipped). Additional configuration of gas type and unit ID for
reporting is required (see XNX Technical Manual Section 2.51 Gas Selection).
For Generic mA devices, input values below 3mA will generate Fault 155.
Use the following schematics to set S3 and S4 to the same output type that
appears on the wire tag of the mA device.
XNX
+IR
Signal
-IR
R
L
1-7
1-9
1-8
+V
+mA
-V
mA Device
Current
Flow
24V 7W Max
XNX S3 and S4 should be in the UP position
Set mA Device and XNX to the same output type.
XNX
+IR
Signal
-IR
R
L
1-7
1-9
1-8
+V
-mA
-V
mA Device
Current
Flow
XNX S3 and S4 should be in the DOWN position
Set mA Device and XNX to the same output type.
Figure 19. Generic mA device sink/source schematics

Honeywell XNX Specifications

General

Ingress Protection	IP66/67
Product Type	Universal Transmitter
Enclosure Rating	IP66/67
Display	LCD
Communication Protocols	HART, Modbus, Foundation Fieldbus
Power Supply	24 VDC nominal, 18-32 VDC
Operating Temperature	-40°C to +65°C (-40°F to +149°F)
Material	Aluminum or Stainless Steel
Gas Types	Toxic, Oxygen, and Combustible gases
Output	4-20 mA
Relays	3 programmable relays
Approvals	ATEX, IECEx, UL, CSA
Sensor Compatibility	Electrochemical, catalytic, infrared, and other sensor types