Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
27
4.7.1 mV Remote Sensor Mounting
The millivolt (mV) sensor can be mounted remotely from the XNX transmitter.
The distance between the transmitter and the remote sensor must comply with
the table below which identifies the proper wire gauges and distances to ensure
proper operation.
AWG
Metric Wire
Gauge
MPD CB1, 705
Series�Sensepoint
Series Sensors
MPD IC1, IV1 & IF1
Sensors
24 0.25 mm
2
12m (47 ft.) 30m (97 ft.)
22 20m (65 ft.) 50m (162 ft.)
20 0.5 mm
2
30m (97 ft.) 80m (260 ft.)
18 50m (162 ft.) 120m (390 ft.)*
16 1.0 mm
2
80m (260 ft.)* 200m (650 ft.)*
* The fre quenc y of zero calibrations may increase due to the changes in wire resistance caused by
changing temperatures.
To remotely mount the sensor, follow this procedure:
1. Installajunctionboxinthedesiredlocation.Allowsufcientroom
forinstallationandcalibrationofthesensor.(MPDsensorsmustbe
installedwiththesinterpointingdown.)
2. Loosentheretainerlockingscrewonthetransmitterwiththe
suppliedhexkey.
3. Unscrewthetransmitter’sweatherproofcover.
4. Runconduitorcablefromoneofthetransmitter’savailableconduit
entriestothelocationoftheremotejunctionboxinaccordance
withlocalrequirements.ULandCSArequireaconduitpourtting
within45cm(18in.)ofeachenclosure.
5. Mounttheremotesensorjunctionbox.Allowenoughroombelowit
totthesensorandtheweatherproofcover.
6. Attachtheconduitorcabletotheremotejunctionbox.Thejunction
boxprovidesamountingbaseforthesensorandcontainsthe
associatedelectroniccircuit.
UL/CSA Aluminum Junction Box
2441-0022
ATEX/IEC Junction Box
00780-A-0100
Figure 15. Remote junction boxes

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