Univex 5100-02-IT, IT Series instruction manual Configure SET-POINTS

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Model 5100-02-IT Combustible Gas Sensor Module

4.3CONFIGURE SET-POINTS

The sensor module set-points menu is used to initially set-up the alarm set points, relay actions, gas type and range, 4-20 mA action and RS-485/Sentry address and baud rates (See Menu Key in Appendix J).

Alarm Set-points:Once the Set-up menu is selected, press [E] to activate the Alarm Set-point screen. Use the [▲] or [▼] keys to select Low Alarm or High Alarm menu. Key [▲] will adjust the setpoint upwards and Key [▼] will adjust the value downwards. Once it reaches the desired setpoint, Key [E] will accept it and ACK will appear. Set-points can be configured using this menu to values between 0 and 60.

Alarm Relay Set-up:Once the Set-up menu is selected, press key [▼] once and press [E] to activate the Relay Set-up menu. Use the [▲] or [▼] keys to select High Alarm or Low Alarm relay menu and press [E]. Use the [▲] or [▼] keys to select the correct alarm relay action for the application, Latch, Sentry or Non-Latch. Selecting “Sentry” enables the Sentry controller to make all alarm action decisions. * indicates the current selection.

Gas Factor: A calibration standard of Methane or Propane may be used in conjunction with scaling factors to cause alarm function in %LEL scale of another gas. See Appendix I for a list of the scaling factors. Note that if the 5100-02-IT is interfaced to a Sentry controller that the gas factor can be set in the Sentry or the Gas Sensor Module but NOT IN BOTH. It is recommended that the gas factor be adjusted in the Gas Sensor Module so that the display values on both the Gas Sensor Module and the Sentry are matched. Note that gas factors are not applicable during calibration.

4-20mA:Once the Set-up menu is selected, press key [▼] three times and press [E] to activate the 4-20mA Set-up menu. Use the [▲] or [▼] keys to select Calib, or CalibOut TblOut menu and press

[E].The “Calib” section of the menu allows the user to calibrate the 4 mA and 20 mA outputs. To calibrate the 4 mA and 20 mA outputs it is necessary to have an amp meter connected to the 5100- 28-IT and upon selecting the 4 mA output calibration then the [▲] or [▼] keys can be used to adjust the 4 mA reading on the amp meter until it reads 4 mA. Similar steps can then be performed for the 20 mA output. The CalibOut section allows the user to select the 4-20 mA output action desired during calibration. * indicates the current selected value. Available selections include:

ƒTrack – the 4-20mA value tracks the calibration gas exposed to the gas sensor module

ƒZero – the 4-20mA value is held at 0mA during calibration

ƒC1.50mA – the 4-20mA value is held at 1.50mA during calibration

ƒC4.00mA – the 4-20mA value is held at 4.0mA during calibration.

The Tbl Out menu enables the user to select the mA output value for the Trouble Alarm. Select “T2.5mA” to choose the 2.5mA default valve. Or select “User mA” and use the [▲] or [▼] keys to select any valve between 0.5mA and 3.7mA.

RS-485- Once the Set-up menu is selected, press key [▼] four times and press [E] to activate the RS-485/Sentry Set-up menu. Use the [▲] or [▼] keys to select Address or Baud rate menu and press [E]. Note that the 5100-28-IT has a rotary switch on the faceplate and it is used to select addresses 1-15. When connected to Sentry the user can select 1-8 and using Modbus RS-485 the user can select addresses 1-15. For Modbus addresses above 15, set the rotary switch to 0 and then use the “Address” menu to select any address between 16 and 254. The Baud rate menu allows the user to select a baud rate of 38400, 19200, 9600, 4800 or 2400. * indicates current selection.

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Contents Applicability & Effectivity IT SeriesModel 5100-02-IT Combustible Gas Sensor Module FM ApprovalCalibration Equipment Table of Contents If the Module Shows ***UNCALIB Theory of Operation Product ConfigurationProduct Description GeneralModel 5100-02-IT Combustible Gas Sensor Module Mechanical Power Requirements Interconnect WiringIntroduction IT Modules General WiringCatalytic Bead Sensor Modules Sensor Module Locations InstallationEnclosure Installation Sensor Module External Interfaces Connector Locations Installation ConfigurationMA Connection Digital Interface Connections Remote Alarm Reset HUMAN-MACHINE Interface Introduction HUMAN-MACHINE Interface SystemEnter Describes the primary human-machine interface operation Main MenuConfigure SET-POINTS 3A Set-Up Configuration Relays Set Point Adjustment ExampleGas Factor Example MA Adjustment ExampleRS-485 Adjustment Example Set-Up ConfigurationMaintenance Menu Maintenance FunctionsModel Gas Flow Period CalibrationSub-Routine a Abort Calibration Module Components ServiceTransmitter Replacement Wiring terminations clean and correct Appendices Appendix a SpecificationsSensor Module Appendix B Model Numbers & Parts ListAppendix C Limited Warranty Appendix D Remote Sensor Drawing Appendix E Auxiliary Relay Assembly Appendix F Auxiliary Connection Assembly Appendix G Auxiliary RS-485 Multidrop Assembly Model 5100-02-IT Combustible Gas Sensor Module Read Register Table Description Appendix H Modbus Memory MAPComments GAS Methane Factor Appendix I Combustible GAS Scaling FactorsAppendix J Menu Key for 5100-02-IT Gas Sensor Module Alarm Reset MenuCalib Menu Setup Menu Maint Menu This page Intentionally Left Blank

5100-02-IT, IT Series specifications

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