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IM-P381-01 

 CH Issue 5

2

1. Safety information

Safe  operation  of  these  products  can  only  be  guaranteed  if  they  are  properly             
installed,  commissioned,  used  and  maintained  by  qualified  personnel  (see  Section  
1.11)  in  compliance  with  the  operating  instructions.  General  installation  and  safety    
instructions for pipeline and plant construction, as well as the proper use of tools and 
safety equipment must also be complied with.
These  product  are  designed  and  constructed  to  withstand  the  force  encountered  in 
normal  use.  Use  of  these  products  for  any  purpose  other  than  as  temperature     
controllers could cause injury or fatality to personnel.

1.1  Intended use

Referring to the Installation and Maintenance Instructions, name-plate and Technical 
Information Sheet, check that the product is suitable for the intended use/application.  
The  products  comply  with  the  requirements  of  the  European  Pressure  Equipment           
Directive  97 / 23 / EC  and  fall  within  category  'SEP'.  It  should  be  noted  that  products 
within this category are required by the directive not to carry the      mark. 

i)  The products have been specifically designed for use on steam, water, compressed 

air and other non-hazardous fluids which are in Group 2 of the above mentioned 
Pressure Equipment Directive. The products’ use on other fluids may be possible          
but,  if  this  is  contemplated,  Spirax  Sarco  should  be  contacted  to  confirm  the                     
suitability of the product for the application being considered.

ii)  Check  material  suitability,  pressure  and  temperature  and  their  maximum  and              

minimum  values.  If  the  maximum  operating  limits  of  the  product  are  lower  than      
those  of  the  system  in  which  it  is  being  fitted,  or  if  malfunction  of  the  product                
could result in a dangerous overpressure or overtemperature occurrence, ensure                   
a  safety  device  is  included  in  the  system  to  prevent  such  over-limit  situations.

iii)  Determine the correct installation situation and direction of fluid flow. 

iv)  Spirax  Sarco  products  are  not  intended  to  withstand  external  stresses  that  may                  

be  induced  by  any  system  to  which  they  are  fitted.  It  is  the  responsibility  of  the         
installer  to  consider  these  stresses  and  take  adequate  precautions  to  minimise        
them.

v)  Remove  protection  covers  from  all  connections  and  protective  film  from  all                  

name-plates,  where  appropriate,  before  installation  on  steam  or  other  high        
temperature applications.

1.2  Access

Ensure  safe  access  and  if  necessary  a  safe  working  platform  (suitably  guarded)                 
before  attempting  to  work  on  the  product.  Arrange  suitable  lifting  gear  if  required.

1.3  Lighting

Ensure  adequate  lighting,  particularly  where  detailed  or  intricate  work  is  required.

1.4  Hazardous liquids or gases in the pipeline

Consider  what  is  in  the  pipeline  or  what  may  have  been  in  the  pipeline  at  some 
previous  time.  Consider:  flammable  materials,  substances  hazardous  to  health,         
extremes of temperature.

WARNING: 

The  sensor  must  not  be  subjected  to  mercury  or  ammonium  salts.

Summary of Contents for SA121

Page 1: ...ol Systems Knob Adjustment Installation and Maintenance Instructions 1 Safety information 2 Use 3 Installation 4 Pre commissioning checks 5 Display adjustment 6 Commissioning 7 Decommissioning 8 Maint...

Page 2: ...acted to confirm the suitability of the product for the application being considered ii Check material suitability pressure and temperature and their maximum and minimum values If the maximum operatin...

Page 3: ...u have suitable tools and or consumables available Use only genuine Spirax Sarco replacement parts 1 10 Protective clothing Consider whether you and or others in the vicinity require any protective cl...

Page 4: ...tions this product is recyclable and no ecological hazard is anticipated with its disposal providing due care is taken 1 16 Returning products Customers and stockists are reminded that under EC Health...

Page 5: ...inst corrosion the separate screwed nipple is dispensed with and the union nut and compression ring attached directly to the top of the pocket Therefore insert the pocket in place of the screwed nippl...

Page 6: ...occur and the warranty will be invalidated Before commissioning this unit please ensure that the system temperature cannot exceed the overtemperature protection value Table 2 Metric Self acting temper...

Page 7: ...without changing the temperature setting Reference Figure 3 opposite for the following instructions Adjust to the desired setting by turning the knob clockwise to lower the temperature and anticlockw...

Page 8: ...7 Decommissioning 8 Maintenance and spare parts There are no serviceable parts As a safety precaution if the unit is to be decommissioned it is important to reset the unit to its maximum factory sett...

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