background image

 

 

ABUS TECHNOLOGIES INC.

 

 

 

PT

 

 

6.  INSTALLATION 

 
Recommendation 

 

1.  Please confirm  the configuration  for  Pressure Transmitter i.e. 2-  wire, 3-wire  and accordingly follow the 

wiring  procedure.  Ensure  that  the excitation  voltage  is  supplied  to  the  correct  points  and  is  with  in  the 
specified limits for that particular configuration as mentioned in the table above. 

2.  When  installed,  ensure  that  the  transmitter  is not  subjected  to  the  excessive  sources,  and  it  should  be 

considered before installing the Transmitter. Use suitable diaphragm if needed. 

3.  Process connection must be properly sealed with material compatible with the process liquid / gas.  
4.  When  installing  transmitter  with  diaphragm,  seals  /  process  connector  should  be  tightened  not  the 

transmitter, otherwise transmitter calibration may get affected.  

 
 
 

7.  OPERATION 

 
7.1  Zero and Span Adjustment Procedure 

 
 
Minor adjustment can be made to the output signal in case of any drift. The procedure for same is indicated 

as below: 

1.  On top of the Pressure Transmitter is the DIN Connector. Remove it by first removing the screw. 

2.  Four  Terminals  will be  found  on  top  of  which  will  be a  rubber  washer.  Remove  the  rubber  washer 

gently. 

3.  This next  step  is crucial and  to  be  done  very gently.  Holding  the  PT  in  the palm of the hand, press 

down  the  four  terminals  and  revolve  the  thread,  such  that  the  terminals  do  not move  at  all.  This  is 

necessary as the wiring inside the casing might get twisted and the device will be damaged. 

4.  After the thread is removed, gently lift the terminals. Inside is a PCB, and on each side of the PCB are 

two Potentiometers (covered  under  white wax)  using  which the Zero  and Span adjustments  will  be 

done. 

5.  The symbols Z & S are etched on the body of the PT casing just below the terminals. Z indicates the 

potentiometer for Zero adjustment and S for Span adjustment. 

6.  Two wires, one for power and one for input are connected and the output is taken. 

7.  If while applying a pressure of 0 bar, the output deviated from standard Zero Signal (4 mA in case the 

output  is  4-20  mA).  Then  the  Zero adjustment  has  to  be done  till  the  output  is  exactly  4  mA. The 

same way, the Span adjustment is done with the S potentiometer by applying the full span pressure 

and getting an output of exactly 20 mA. 

8.  After adjustment is done, replace the thread, washer and DIN connector in the reverse order. 

 
 
 
 

Summary of Contents for PT Series

Page 1: ...PT Series Pressure Transmitters User Manual ABUS TECHNOLOGIES INC ...

Page 2: ... to personal injury or death Therefore comply fully with all Warning and Caution notices Information in this manual is intended only to assist our customers in the efficient operation of our equipment Use of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part without prior approval of Technical Communications Department ABUS Techno...

Page 3: ... 1 Features 2 Technical Parameters 4 4 5 3 Dimensions 5 4 Ordering Details 6 5 Connections Output Characteristics 7 8 6 Installation Recommendation 9 7 7 Operation 1 Zero and Span Adjustment Procedure 2 Example for Usage 9 9 10 8 Maintenance Troubleshooting 10 10 9 Safety Precautions 11 10 Warranty 11 ...

Page 4: ...There are no internal soft sealing materials that may react with the media or deteriorate over time The compact case is also made of stainless steel and is available with environmental protection ratings PT Series industrial Pressure transmitter adopts high performance chips and deals with special amplified chip integrative configuration and smart profile They are widely used in field of hydraulic...

Page 5: ...re 1 5 x F S Adjustability Zero Span 10 using potentiometers inside Electrical Connections M12 connector Five Pin bendix connector Hirschman Type or Direct down lead Process Connection G1 4 M20 x 1 5 1 4NPT Customized On request Pressure Inlet All media compatible with stainless steel 316 Operating temperature 40 85 C 125 C for short durations Higher range on request Ambient temperature 20 80 C We...

Page 6: ...p Powered Indicator 0 W O Indicator Zero and Span Adjustment 1 With Internal Z S 0 W O Example PT20 10 D 1 W LPI PT 1 STANDARD RANGES FOR PT SERIES CODE GAUGE ABS PRESSURE CODE COMPOUND 01 1 00 bar 17 600 00 bar 02 1 60 bar 18 1000 00 bar 03 2 50 bar 19 1500 00 Bar 04 4 00 bar 20 1800 00 Bar 05 6 00 bar 06 10 00 bar COMPOUND 07 16 00 bar 41 1 0 6 bar 08 20 00 bar 42 1 1 0 bar 09 25 00 bar 43 1 2 0...

Page 7: ...ABUS TECHNOLOGIES INC 7 PT 5 CONNECTIONS WIRE SIGNAL OUTPUT EXCITATION 2 wire 4 20mA 12 36 Vdc 3 wire 0 10 Vdc 12 18 Vdc ...

Page 8: ...ABUS TECHNOLOGIES INC 8 PT Output Characteristics FOR PT20 12XXXX Pressure Transmitter C D A B C D ...

Page 9: ...Four Terminals will be found on top of which will be a rubber washer Remove the rubber washer gently 3 This next step is crucial and to be done very gently Holding the PT in the palm of the hand press down the four terminals and revolve the thread such that the terminals do not move at all This is necessary as the wiring inside the casing might get twisted and the device will be damaged 4 After th...

Page 10: ...tput Check the wiring configuration Check the input power supply 2 No variation in output Check for leakage at pressure port point Check the span set of Indicating Instrument 3 Pressure not holding at constant input pressure Check for leakage pressure point Check for the connections ensure they are properly tightened ...

Page 11: ...g 10 WARRANTY ABUS provides the original purchaser of this instrument a one 1 year warranty against defects in material and workmanship under the following terms The one year warranty begins on the day of shipment as stated on the sales bill During the warranty period all costs of material and labor will be free of charge provided that the instrument does not show any evidence of misuse For mainte...

Reviews: