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DEAD WEIGHT PRESSURE GAUGES TESTER


DW 10 SERIES DW 20 SERIES
DW 30 SERIES MODEL CP - 1
MODEL CP - 1 Model DT 55
Model CT5 Accessories
 
TECHNICAL SPECIFICATIONS
For calibration of Pressure Gauges and other sensing, transmitting and recording pressure instruments. Relationship between pressure acting on the known area of a vertically free floating piston producing a force balanced by known dead weight is made use of in the Dead Weight Pressure Gauge Tester. The main components of a Dead Weight Pressure Gauge Tester are:
Screw Pump to generate pressure in the circuit. Of adequate capacity and operated by turning the spoked handle. Permits easy and accurate setting of pressure. Free Piston Assembly of special steel, hardened, tempered, ground and lapped to accurate size and very fine surface finish to provide true floating action.

Set of Weights directly marked in convenient values of pressure and easily stacked on the carrier weight. Available in either/and kgf/cm2, bar Cbf/in² units. Other units on request. Storage box provided. Incremental weights to provide smaller steps available at extra cost for all models mentioned below. Gauge Connector of 1/2" BSP (female) union for connecting gauge to be tested. Other sizes of gauges can be connected by using adaptors. Baseplate of sturdy construction provided with legs and levelling screws. The entire circuit is protected by a Sheet Metal Cover.
 
   
DW 10 SERIES
TECHINICAL SPECIFICATION
kgf/cm²or bar kgf/in
MODEL Min. Step. Max. Min. Step. Max.
DW 10 0.1 0.01 2.5 1 0.1 40
DW 11 0.1 0.05 6 1 0.5 80
DW 12 0.2 0.05 16 2 1 200
DW 13 0.4 0.1 25 5 1 360
DW 14 0.4 0.1 40 5 1 500
DW 15 1 0.1 60 10 2 800
DW 16 1 0.1 100 20 5 1500
             
DW 10 SERIES
   
 
 
DW 20 SERIES
TECHINICAL SPECIFICATION
kgf/cm²or bar kgf/in
MODEL Min. Step. Max. Min. Step. Max.
DW 21 2 0.5 160 20 10 2000
DW 22 4 1 250 40 10 3600
DW 23 5 1 400 50 10 5000
DW 24 10 2 600 100 20 8000
DW 25 10 2 800 100 20 12000
DW 26 10 2 1000 100 20 15000
             
 
   
DW 30 SERIES
TECHINICAL SPECIFICATION
kgf/cm²or bar kgf/in
MODEL   Min. Step. Max. Min. Step. Max.
DW 30 L.P. 0.2 0.05 16 2 1 200
  H.P. 10 0.5 160 100 10 2000
DW 31 L.P. 0.4 0.1 25 5 1 360
  H.P. 24 1 250 240 10 3600
DW 32 L.P. 0.4 0.1 40 5 2 550
  H.P. 34 1 400 500 20 5500
DW 33 L.P. 1 0.2 55 10 2 800
  H.P. 50 2 600 600 20 8000
DW 34 L.P. 1 0.2 75 10 2 1200
  H.P. 50 2 800 600 20 12000
DW 35 L.P. 1 0.2 100 10 2 1500
  H.P. 50 2 1000 600 20 15000

Models of DW 30 series are provided with 2 free piston assemblies for giving Low Pressure range with smaller steps and High Pressure range with larger steps in a single instrument with substantial cost saving. The ratio of areas of LP and HP Free Pistons is generally 10: 1. Ratio of 5: 1 or 20: 1 car also be provided.
DW 30 SERIES
 
COMPARISON TEST PUMP FOR PRESSURE
For quick calibration by comparison with Master Gauge. The Master Gauge to be periodically checked on Dead Weight Pressure Pressure Gauge Tester. Two Gauge Connectors are provided for connecting master gauge and gauge to be tested to the same hydraulic pressure. Screw Pump to generate pressure inthe circuit. Permits easy and accurate setting of pressure.
 
   
PRODUCT PREVIEW   DIAGRAM
MODEL CP - 1
 
RANGE
0 - 100 kgf/cm²
0 - 1500 Ibf/in²
 
Model CP1 : with a large capacity screw pump and a removable oil reservoir with isolating valve in a simple line circuit permitting effective air removal.
COMPARISON TEST PUMP FOR PRESSURE
     
 
   
PRODUCT PREVIEW   DIAGRAM
COMPARISON TEST PUMP FOR PRESSURE
MODEL CP - 2 & 3
 
RANGE
0 - 700 kg/cm²
0 - 10000 Ibf/in²
CP-3
0 - 1000 kgf/cm²
0 - 15000 Ibf/in²
Model CP2 & CP3: with lever operated Priming Pump also giving continuous oil delivery for filiing up large gauges or even external piping. Capable of developing 10% of the instrument range and with isolating valves at both ends. Unique closed circuit for effective air removal. Water Operated models are also available in Comparison Test Pumps. All wetted parts will be made of stainless steel.
COMPARISON TEST PUMP FOR PRESSURE  MODEL CP - 1
     
 
DEAD WEIGHT VACUUM GAUGE TESTER
 
   
PRODUCT PREVIEW  
Model DT 55
TECHINICAL SPECIFICATION
MINIMUM SMALLEST MAXIMUM UNIT
VACCUM STEP VACUUM  
0.1 0.02 0.96 kgf/cm²
50 10 710 mmHg
2 0.5 28 inHg
     
 
Model DT 55 : For calibration of vacuum gauges and other sensing, transmitting and recording vacuum instruments. The Vacuum Gauge. Tester is a quick and convenient method of calibration free from the disadvantages of using the fragile mercury manometer. The main components of the tester are:
SCREW PUMP to generate the vacuum in the tester conveniently and precisely. Of adequate capacity and operated by turning the spoked handle.
FREE PISTON Assembly of special steel, hardened, tempered, ground and lapped to accurate size and very fine surface finish to provide true floating action. The free piston is suspended vertically downwards from a rigid frame and connected by a pipe to the screw pump. A CARRIER weight is attached to the free piston for taking more weights. VALVE is provided to connect the circuit to the atmosphere and thus check zero ofthe gauge. GAUGE CONNECTOR of ½" BSP (female) union for connecting gauge to be tested. Other sizes of gauges can be connected by using adaptors. SET OF WEIGHTS directly marked in convenient values of vacuum and easily stacked on the CARRIER weight. Available in either /and kgf/cm2, mmHg, inHg units. Storage box provided. BASEPLATE of sturdy construction provided with legs and levelling screws.
 
COMPARISON TEST PUMP FOR VACUUM PRODUCT PREVIEW
Model CT5
TECHINICAL SPECIFICATION
Range 0-710 mmHg
For quick calibration with Master Gauge. The master gauge to be periodically checked on Dead Weight Vacuum Gauge Tester. TWO GAUGE CONNECTORS are provided for connecting master and gauge to be tested to the same vacuum. SCREW PUMP to generate vacuum in the circuit. Permits easy and accurate setting of vacuum. VALVE is provided to connect the circuit to the atmosphere and thus check zero of the gauge. BASEPLATE of sturdy construction provided with legs.
COMPARISON TEST PUMP FOR PRESSURE
 
 
ACCESSORIES
PRODUCT PREVIEW PRODUCT PREVIEW PRODUCT PREVIEW
Tool Box Steel Carrying Box for Tester Instruction Manual
Tool Box Steel Carrying Box for Tester  (optional) Instruction Manual
     
Incremental Weights (optional) Weight Box  
Incremental Weights (optional) Weight Box  
 
 
 
   
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