Справочник Пользователя для K-Tec MT2000

 

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

DCN0160

 

SYMPTOM  

ACTION 

Raw Counts are 0 and Output is in 
alarm 

 

Raise the Threshold 

 

Check probe for presence 

 

Decrease blanking 

  
No Display 
  

 

Check cables 

 

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 
moves 
  

 

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

      objects. 

Unit worked satisfactorily until new 
IS barrier installed in circuit 
  

 

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

      that sufficient voltage / power is available for device. 

Unit reads incorrectly at the top or 
very end of cable / probe 
  

 

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

      be minimized or eliminated by using the Linearization table. 

After a power loss the unit goes to 
4 ma before returning to normal 
reading 

 

Normal part of start up cycle 

 
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. 

 

 
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