| XNX Transmitter |
| Material |
LM25 Aluminum, painted (SS316 painted optional) |
| Cable Entries |
5 conduits/cable entries – (2 right, 2 left, 1 bottom) Available in ¾" NPT, or M25 |
| Termination |
Cage Clamp pluggable Terminal Blocks with retaining screws, 0.5 to 2.5mm (12-28 AWG) |
| Mounting |
XNX Enclosure Bracket (ears on casting for u-bolt). Integral cast mounting flanges provide secure mounting to surfaces, channels or up to 6" Pipe.
Optional Remote sensor (up to 50 ft / 15.2 M) for Cat Bead and Toxic |
| User interface |
Standard Custom Backlit LCD. 2.5" High Resolution DOT Matrix Display. Discrete Alarm and Status indication. Reliable Non-Intrusive 4 button interface magnetic
wand access. Optional HART Handheld with IS Port |
| Signal |
Standard HART over 3-wire 4-20mA (sink or source). Optional Modbus over RS-485 and Foundation Fieldbus |
| Environmental |
| Temperature |
-40°C to +65°C / -40°F to +149°F (sensor dependent) |
| Humidity |
20 to 90% RH non-condensing |
| IP Rating |
NEMA 4X IP65 |
| Options |
| |
Form C and SPDT 3 Relays, 240 VAC, 5A (2 Alarm, 1 Fault) (Mutually exclusive with Modbus and Fieldbus Options) |
| Power |
| |
18V to 32V (24V nominal) |
| Hazardous Area Approvals |
| |
|
| Performance Approvals |
UL Certified Class 1, Div 1
ATEX Zone 1 |
| Display Module & User Interface (Standard) |
| Display Type |
Backlit LCD |
| Information Displayed |
| Base Information: |
Gas Reading
Gas Name and Units of measurement
Fault and Alarm Status
Large Numeric concentration or LEL display
Bar graph showing current reading, set points and full scale. |
| Fault/Alarm and Operating Status Indication: |
Security settings allow multi level operator access for set-up, configuration and calibration
Event history stores Time and Date of all Alarm, Diagnostic, Configuration events |
|
| Interface |
Magnetic wand with terminal screwdriver (supplied each unit) |
| 4-20mA & HART (Standard Supply) |
| Description |
Fully configurable isolated 4-20mA & HART output module providing current sink, current source and isolated modes of operation. (supports HART 6.0 protocol) |
| Non-intrusive Interface |
Optional local IS port to enable HOT connection of a HART handheld configurator |
| Operating Modes |
Current sink / Current source / Isolated current sink /Conventional or with HART data |
| Output Range |
0 to 22mA |
| 4-20mA Signal Accuracy |
+/- 1% FS |
| Max loop resistance |
600 Ohms at 24Vdc loop supply |
| Functions Supported via HART |
| Gas Reading |
Detailed Sensor Information Including: |
RTC (Excel Only) |
| Gas Name and Units of measurement 4-20mA signal level |
Optical Signal Level |
Calibration and Configuration status |
| General/Device Information |
Dynamic Reserve (Excel Only) |
Detailed Fault and Warning Information |
| Installation |
Raw reading |
Fault and Alarm History |
| Configuration |
Temperature |
|
| Forcing of 4-20mA output |
|
|
|
| Local IS HART Port (Optional) |
| Description |
Provides externally accessible IS connections to the XNX transmitter to enable HOT connection of HC275/375 HART or equivalent hand held configurator. |
| Installation |
Fitted to one of the cable entries on the XNX transmitter. |
| Environmental Protection |
Terminals protected by cover to IP 66 when not in use |
| Relay Module (Optional) |
| Description |
Provides three fully user configurable relay outputs that can be switched based on the current gas level and/or status of the transmitter. Provides 2 x SPCO
alarm and 1 x SPCO fault relays. Single Pole Double Throw SPDT. Option PCB Factory installed in display module. |
| Installation |
Fitted into housing base either at the factory or in the field by qualified service engineer. |
| Rating |
| Maximum: 240VAC, 5A (non inductive load) |
Minimum: 5V, 10mA (non inductive load) |
|
| Electrical Connections |
Fault: Common, Normally Open, Normally Closed
Alarm 1: Common, Normally Open, Normally Closed
Alarm 2: Common, Normally Open, Normally Closed |
| Configuration |
| Default |
Configurable Options |
|
|
| Fault Relay: |
Fault Relay: |
| Normally energized |
Normally energized / normally de-energized |
| Non latching |
None |
| Signal inhibit as fault |
Enable/disable |
| Alarm 1 / 2 Relays: |
A1 / A2 Relays: |
| Normally de-energized |
Normally energized / de-energized |
| Non latching |
Latching / non latching |
| Alarm rising on gas reading |
Alarm on rising / falling |
| Alarm level 20% and 40% of scale |
Alarm level 10% to 90% of full scale |
| Hysteresis of 2% of scale |
|
|
| Re-setting of Latched Relays |
Easily accessible interface on display (if used) or via HART interface (local or remote) |
| Note |
Use of the Relay Module or 'Other' Communications Module (E.g. Foundation Fieldbus) is mutually exclusive. However, relay function may be used in conjunction
with standard communication output i.e. 4-20mA with HART. |
| Relay Specific Functions via HART Interface |
Relay status information / Reset of latched conditions / Configuration of relays Forcing of relay state
Reset through non intrusive User Interface. Remote Switch closure using Remote Reset input Remotely through HART |
| Foundation Fieldbus Module (Optional) |
| Description |
Foundation Fieldbus compliant digital communications interface enables connection of the XNX transmitter to a multi-drop Foundation Fieldbus H1 network. |
| Installation |
Fitted into housing base either at the factory or in the field by qualified service engineer. |
| Connections |
Sig+, Sig- and Screen |
| Physical Layer |
Conforms to IEC 1158-2 and ISA 50.02, 31.25Kbits/s |
| Maximum No. of Nodes |
32 |
| Functions Supported |
| Gas Reading |
Detailed Sensor Information Including: |
Detailed Fault and Warning Information: |
| Gas Name and Units of measurement |
Optical Signal Level |
Fault and Alarm History |
| Instrument status (OK, warning, fault, over-range) |
Dynamic Reserve (Excel Only) |
Zero Calibration |
| Remote zero and span calibration (detector dependent) |
24V supply voltage |
|
| Remote zero and span calibration (detector dependent) |
Temperature
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RTC (Excel Only)
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Calibration and Configuration status |
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| Modbus RTU Module (Optional) |
| Description |
The Modbus output module provides an Isolated RS485 output to enable the connection of the XNX transmitter to a multi-drop Modbus network |
| Installation |
Fitted into housing base either at the factory or in the field by qualified service engineer. |
| Connections |
RS485+, RS485-, Drain |
| Physical Layer |
Isolated RS485, 1200 to 19.2K Baud |
| Maximum No. of Nodes |
254 XNX compatible transmitters only |
| Protocol |
Modbus RTU |
| Functions Supported |
As per Foundation Fieldbus Module (Optional) - see above |
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