Pentax XNX Universal Transmitter Specifications

XNX™ SPECIFICATIONS

Universal Transmitter

General Specifications
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 Integral cast mounting tabs provide secure mounting to surfaces and channel. Can be mounted to 2 to 6 inch pipe or ceiling with corresponding mounting kit (optional)

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.

Signal 0-22mA analog current loop output with HART (version 6) compatible standard. Optional relay or Modbus.

Environmental

Temperature -40°C to +65°C / -40°F to +150°F (sensor dependent)

Humidity 20 to 90% RH non-condensing

IP Rating NEMA 4X IP66

Options

Relay Option 3 - SPDT (2 Alarm, 1 Fault) Relays; 250 VAC 5A, 24VDC 5A (Resistive) with External Reset Input or Modbus option: RTU protocol; selectable Baud Rate

Optional HART with IS Port

Operating Voltage

18-24 VDC Nominal (EC & mV units 16-32 VDC; IR units 18-32 VDC (Class 2 supply required)

Power Consumption

XNX used with: electrochemical sensor: 6.2 watts; millivolt (catalytic bead or IR cell): 6.5 watts; point Infrared sensor (Searchpoint Optima): 9.7 watts; open-path Infrared

Hazardous Area Approvals (Transmitter/Sensor Dependent)

UL, cUL classified: UL 1203 and 913 Seventh edition; CSA, CSA 22.2 No. 30, CSA 22.2 No. 157
Class 1, Division 1, Groups B, C, D / Class 1, Zone 1, Groups IIB + H2 T4 Tamb -40c to 65c
DEMKO* IEC 60079-0, 4th ED; IEC 60079-15th Ed; IEC 60079-11 5th Ed. NCC INMETRO*
Type Approval: EX [ia]d IIB + H2 T4 Tamb -40c to 65c

Performance Approvals (Sensor Dependent)

Flammable gases: CSA 22.2 No. 152, FM* 6310, 6320, DEKRA/EXAM* IEC/EN 60079-29-1, EN 61779-4:2000 Toxic and Oxygen

FM* ISA 92.0.01; DEKRA/EXAM* EN 45544:2000, EN 50104: 1999

Functional Safety: TUV EN 61508 SIL 2 Component Certification

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 Security settings allow multi level operator access for set-up, configuration and calibration
Operating Status Indication: 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 Gas Reading Detailed Sensor Information Including: RTC (Excel Only)
via HART Gas Name and Units of measurement Optical Signal Level Calibration and Configuration status

4-20mA signal level Dynamic Reserve (Excel Only) Detailed Fault and Warning Information
General/Device Information Raw reading Fault and Alarm History
Installation 24V supply voltage Zero Calibration
Configuration Temperature
Forcing of 4-20mA output

* pending

(Searchline Excel): 13.2 watts

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: 240 VAC, 5A (non inductive load) / 24 VDC 5A CES 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 Relay status information / Reset of latched conditions / Configuration of relays Forcing of relay state
HART Interface Reset through non intrusive User Interface. Remote Switch closure using Remote Reset input Remotely through HART

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 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
General/Device Information Raw reading
Remote zero and span calibration (detector dependent) 24V supply voltage
Temperature
RTC (Excel Only)
Calibration and Configuration status

Further information is available upon request.

* Not available at time of publication. Please call your Honeywell Analytics sales person.

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HART

is a registered trademark of the HART Communication Foundation.

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MODBUS

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