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H/US/PERAMIC/05-2018/00   

 

 

 

Klay Instruments 

Page 1/4 

 
 
 

 

INSTRUCTION MANUAL

 

PERAMIC 

 

WARNING

 

Before installing the PERAMIC, read the warnings and 
advisements on the last page. For personal and system 
safety, and for optimum performance, make sure you 
thoroughly understand the contents before installing. 

 

DESCRIPTION

 

The  PERAMIC  is  a  solid  state,  All  Stainless,  Pressure 
transmitter  based  on  a  ceramic  pressure  cell  with  a  very  high 
burst  pressure.  The  amplifier  system  is  based  on  a  single 
Integrated  Circuit,  which  ensures  a  perfect  linearity  in  the  4-20 
mA  output.  Also  the  transmitter  is  fully  temperature 
compensated. The PERAMIC is made for pressure applications 
on  liquids,  gases  and  vapors.  Zero  and  Span  are  internally 
adjustable  in  wide  ranges.  A  local  digital  indicator  is  available 
(option). 

 
 

OPERATION PERAMIC

 

The PERAMIC has no oil filling system, so the process pressure  is applied directly to the ceramic pressure 
cell. The voltage signal from the ceramic cell is connected directly to the Integrated Circuit that converts this 
signal into 4-20 mA. Therefore the PERAMIC has a perfect linearity and is fully temperature compensated. 
This means that various process temperatures have no effect on the accuracy of the output signal. 

 

DIMENSIONS

 

 

PARTS DESCRIPTION 

 

MATERIAL 

 

 

 

1.  Cover 

 

 

 

AISI 304 

2.  O-ring 

 

 

 

EPDM 

3.  Venting 

 

 

 

PA 

4.  PG9 Cable Gland   

 

 

5.  Electronics Housing 

 

AISI 304 

6.  Foot 

 

 

 

AISI 316 

7.  Sensor (Pressure cell) 

 

Ceramic 

8.  Process connection ½” NPT (m)  AISI 316 
 
 
The Sensor is sealed with an O-Ring (VITON). 
Other materials can be delivered on request.   

 
 
 
 

 

BAROMETRIC REFERENCE: 

The PERAMIC is a Relative Transmitter which means that barometric changes will not affect the zero (4 mA).  
The venting nipple (3) is placed in the electronic housing and is the barometric reference to atmospheric pressure. 
The venting nipple must be kept clean.

 

Summary of Contents for PERAMIC

Page 1: ...C The PERAMIC has no oil filling system so the process pressure is applied directly to the ceramic pressure cell The voltage signal from the ceramic cell is connected directly to the Integrated Circuit that converts this signal into 4 20 mA Therefore the PERAMIC has a perfect linearity and is fully temperature compensated This means that various process temperatures have no effect on the accuracy ...

Page 2: ...dc min power supply 20 mA CALIBRATION All transmitters are fully calibrated at the factory to customer specified range When no calibration is requested the transmitter will be calibrated at the lowest span It is advisable to recalibrate the transmitter after shipment The calibration sequence is as follows 1 The output of the transmitter must be set at 4 mA Zero potentiometer 2 Air pressure in acco...

Page 3: ... mA Ci 1 nF Li 1 2 mH Pi 0 9 W 30 C Tamb 70 C 22 F Tamb 158 F All certifications are in compliance with IECEx scheme rules and the International Standards IEC 60079 0 2011 IEC 60079 11 2011 IEC 60079 26 2007 and IEC 17050 1 They are certified for use in hazardous areas by DEKRA B V DO NOT REMOVE THE SCREW COVER WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT FUNCTIONAL SAFETY SIL The device is certifi...

Page 4: ...ater jets on the diaphragm take necessary steps to avoid this Guarantee will not be granted As soon as the wiring is brought inside through the PG9 Cable gland and connected to the terminal board make sure the cable gland is tightly fixed so that moisture cannot enter into the electronic housing Never remove the venting 3 because it is especially designed to prevent moisture from entering into the...

Page 5: ...A 12ATEXQ0041 Issue 3 Delivered by the DEKRA Meander 1051 6825 MJ Arnhem The Netherlands Notified Body No 0344 Date February 12 th 2018 E Timmer Managing Director Klay Instruments B V Signature The marking of the equipment is as follows II 1G Ex ia IIC T4 Ga II means that the equipment has been built for use in surface industries and not in mines endangered by firedamp 1 equipment for use in Zone ...

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