background image

 

 

INSTRUCTION MANUAL 

 

FOR 

 

Averaging Relay 

 

CR-103-A

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 
 
 
 
 

 

 

 
 
 
 
 
 
 

 

        

 

 

      INSTRUCTION MANUAL NUMBER

 

 

 

    P-2172 

 

                  Rev. A 

 

Note to installer:

  Before installing, read instructions carefully and record

model number.  After installing, give this manual to operating personnel or
see that it is filed for future reference. 

 

1602 Mustang Drive 
Maryville, Tennessee 37801 
Phone: (865) 981-3100    Fax: (865) 981-3168 

Summary of Contents for CR-103-A Series

Page 1: ...172 Rev A Note to installer Before installing read instructions carefully and record model number After installing give this manual to operating personnel or see that it is filed for future reference 1602 Mustang Drive Maryville Tennessee 37801 Phone 865 981 3100 Fax 865 981 3168 ...

Page 2: ...2 NOTES ...

Page 3: ...sig 1 2 bar divided by the number of input signals OVERLOAD PROTECTION 100 psig 7 bar will not damage unit AMBIENT TEMPERATURE LIMITS 40 F to 180 F 40 C to 82 C CONNECTIONS 1 4 female NPT for input output and supply WEIGHT 2 input signals 2 lb 0 91 kg 7 input signals 3 5 lb 1 59 kg C PERFORMANCE DATA ULTIMATE SENSITIVITY 0 1 of full range LINEARITY 1 of full range HYSTERESIS Less than 1 of full ra...

Page 4: ...he air lines If more secure mounting is desired use the mounting bracket furnished as shown in Figure 1 Use two 1 4 bolts toggle bolts or wood screws as required by the installation Bracket may be removed or inverted by removing two lock nuts C CONNECTIONS The input supply and output ports are 1 4 female NPT Make the air connections to the proper ports as shown in Figure 1 The air supply must be c...

Page 5: ...s be dirty it may be necessary to clean the surfaces of the Valve 18 and the Valve Seats A and B If continued difficulty is experienced from dirt moisture oil etc suitable filters should be provided in the supply lines If the control pressure does not go to minimum output pressure or zero or if the exhaust appears to be leaking follow the instructions below refer to Figure 3 except as noted 1 Remo...

Page 6: ...pherical Surfaces C in Figure 3 must be smooth and regular 3 Inspect the Valve Seats A and B in Figure 3 The surfaces must be clean and smooth with no scars or surface irregularities 4 Inspect Diaphragms 29 for holes or worn spots which might permit air leakage 5 Install the Valve 18 Valve Spring 19 and Spring Retainer 20 and make sure that the Valve Spring 19 is seating the Valve 18 properly 6 Re...

Page 7: ...G 029715A0001 1 28 DIAPHRAGM RING 031766A0001 SEE TAB 29 BALANCING DIAPHRAGM 028561A0001 SEE TAB 30 EXHAUST PLATE 027929A0002 2 31 PRESSURE PLATE 028571A0001 SEE TAB 32 PRESSURE PLATE 028569A0001 SEE TAB 33 EXHAUST SEAT 028557A0001 1 34 SUPPORT RING 028565A0001 1 35 BASE 027668C0001 1 36 SCREW SEE TAB 4 37 HEX NUT KEPS 1 4 20 not shown 036603A0019 2 38 MOUNTING BRACKET not shown 029139A0001 1 39 P...

Page 8: ...nnessee 37801 Telephone 865 981 3100 Fax 865 981 3168 http www robertshaw thomasregister com http www robertshawindustrial com Exports Invensys Appliance Controls 1701 Byrd Avenue P O Box 26544 Richmond Virginia 23261 6544 Telephone 804 756 6500 Fax 804 756 6561 Q 1343 11 04 Printed in U S A ...

Reviews: