K-Tec MT2000 Honeywell DE Output Option, Possible Symptoms cont’d, Electronics Module Replacement

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5.2Possible Symptoms (cont’d)

SYMPTOM

ACTION

 

 

Raw Counts are 0 and Output is in

Raise the Threshold

Check probe for presence

alarm

Decrease blanking

 

 

 

 

Check cables

No Display

Check for proper supply voltage

Check for proper wiring

 

 

Replace electronics module

 

 

21 mA output

Unit is in ALRM – check THV, GS (section 4.4.2); check BLK

(section 2.3.3.3)

 

 

 

OUTPUT steady even when level

Check cable for obstructions, buildup, and trash or nearby metal

moves

objects.

 

 

 

Unit worked satisfactorily until new

Ensure that barrier meets requirements of pg 31 (APPENDIX H) and

IS barrier installed in circuit

that sufficient voltage / power is available for device.

 

 

 

Unit reads incorrectly at the top or

This non-linearity is common at the extreme ends of the probe and can

very end of cable / probe

be minimized or eliminated by using the Linearization table.

 

 

 

After a power loss the unit goes to

 

4 ma before returning to normal

Normal part of start up cycle

reading

 

 

 

5.3Electronics Module Replacement

A defective electronics module can be replaced as follows:

1.Before installing a new module record the KO and KG numbers off the new module for future reference. The numbers are marked on the side of the module in the following format: 1-KO-KG, 2-KO-KG for ranges 1 or 2 respectively.

2.Remove the existing module by unscrewing the 2 flat screws holding the module in the housing.

3.Note the orientation of the module and unplug from the housing base.

4.Carefully unplug the coax cable connector from side of the module.

5.Plug the coax cable into the new module.

6.Plug module onto the housing base.

7.Secure the module to the housing by screwing the 2 flat screws.

8.Power the unit and, using the LCD display, go to the CFG menu to KO and KG and enter the numbers written down from the side of the new module for RNG1 or RNG2. (RNG 1 is for probes < 100 ft. / 30.5m.)

The MT2000 is now ready for use without further calibration.

6. HONEYWELL DE OUTPUT OPTION

6.1Interoperability and Conformance Class

The DE option uses the Honeywell proprietary Digitally Enhanced Protocol for Smart Transmitters. The confor- mance class is as follows:

The DCS configuration should be set for Class 0, 4 byte Mode.

Class 0: Continuous broadcast, in burst mode, of the following parameters:

PV1: Primary Variable; Level #1 in %

PV Status: OK, Critical or Bad PV

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MT2000-0200-01 Rev f (10-2007) DCN0160

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Contents Guided Wave Radar Level Transmitter Table of Contents List of Figures AppendicesIntroduction Ambient Temperature OverviewStorage Information Measurement cycle consists of the followingDirect Reflect Mode standard cont’d Ultra Low Dielectric ULD Measure MethodInstallation Mounting RequirementsFactory Default Configuration Shortening of ProbeMT2000 Guided Wave Radar Guidelines URV = Probe Length LRV = 0 in. / 0 mmWiring Quickstart ProcedureCommissioning MT2000 Guided Wave Radar Guidelines cont’dSetting the 4mA and 20 mA Points Using the Pushbutton Menu Quickstart Procedure cont’dVerify Proper Power-Up LCD Menu Operation Calibration MenuDetailed Configuration Parameters Direct Mode Blanking Menu Threshold Level Parameter THV and Gain Setting GSL1O Threshold Level Parameter THV and Gain Setting GS cont’dAdvanced Parameter Settings Advanced Parameter Settings cont’d KO & KGDC = I + H L / H2 Ultra Low Dielectric ULD Mode Configuration= H * Sqrt DC H + L Ultra Low Dielectric ULD Mode Configuration cont’d Advanced Output ConfigurationSetting the DAC trim DAC TrimFigure6 4mA & 20mA Calibration Using Actual Level Input Bench Calibration of the 4mA & 20mA PointsReversing The Output Action Using Actual Level Input Jumper Switch SettingsValid Current Loop Outputs Troubleshooting InformationPossible Symptoms Possible Symptoms cont’d Electronics Module ReplacementHoneywell DE Output Option Interoperability and Conformance ClassHart Protocol Interface Option Operating ModesHart Communicator CompatibilityGlossary of Terms LRVAppendices Appendix a Sensor TrimConfiguration 2 Hidden Menu END CFG MenuTMP To access the linearization table Setting up Linearization Table PointsAppendix C Linearization To clear the linearization tableAppendix D Interface Applications MT2000 InterfaceUse and setup of the oscilloscope for the MT2000 Scope Settings Channel aPrerequisites Channel BAppendix F CE Certificate of Conformity Appendix G Exida Certificate MT2000-0200-1 Rev f 10-2007 DCN0160 MT2000-0200-01 Rev f 10-2007 DCN0160 MT2000-0200-1 Rev f 10-2007 DCN0160 Appendix I Mounting Configurations 3a, 3b10a 10bAppendix J Warranty Statement Year Warranty for
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