DEAD WEIGHT PRESSURE GAUGES TESTER
 
     
 
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  
 
PRODUCT PREVIEW TECHINICAL SPECIFICATION DIAGRAM
Dead Weight Pressure Tester Gauge
  kgf/cm²or bar kgf/in
MODEL
DW 10
DW 11
DW 12
DW 13
DW 14
DW 15
DW 16
Min. Step. Max.
0.1 0.01 2.5
0.1 0.05 6
0.2 0.05 16
0.4 0.1 25
0.4 0.1 40
1 0.1 60
1 0.1 100
Min. Step. Max.
1 0.1 40
1 0.5 80
2 1 200
5 1 360
5 1 500
10 2 800
20 5 1500
Dead Weight Pressure Tester Gauge
 
  DW 20 SERIES  
 
PRODUCT PREVIEW TECHINICAL SPECIFICATION DIAGRAM
Dead Weight Pressure Tester Gauge
  kgf/cm² or bar kgf/in
MODEL
DW 21
DW 22
DW 23
DW 24
DW 25
DW 26
Min. Step. Max.
2 0.5 160
4 1 250
5 1 400
10 2 600
10 2 800
10 2 1000
Min. Step. Max.
20 10 2000
40 10 3600
50 10 5000
100 20 8000
100 20 12000
100 20 15000
Dead Weight Pressure Tester Gauge
 
  DW 30 SERIES  
 
PRODUCT PREVIEW TECHINICAL SPECIFICATION DIAGRAM
Dead Weight Pressure Gauges Tester
  kgf/cm² or bar kgf/in
MODEL  
DW 30 L.P.
  H.P.
DW 31 L.P
  H.P.
DW 32 L.P.
  H.P.
DW 33 L.P
  H.P.
DW 34 L.P.
  H.P.
DW 35 L.P.
  H.P.
Min. Step. Max.
0.2 0.05 16
10 0.5 160
0.4 0.1 25
24 1 250
0.4 0.1 40
34 1 400
1 0.2 55
50 2 600
1 0.2 75
50 2 800
1 0.2 100
50 2 1000
Min. Step. Max.
2 1 200
100 10 2000
5 1 360
240 10 3600
5 2 550
500 20 5500
10 2 800
600 20 8000
10 2 1200
600 20 12000
10 2 1500
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.  
     
 
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.  
  MODEL CP - 1  
 
PRODUCT PREVIEW RANGE DIAGRAM
  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.  
  MODEL CP - 1  
 
PRODUCT PREVIEW RANGE DIAGRAM
  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.  
     
 
DEAD WEIGHT VACUUM GAUGE TESTER
 
  Model DT 55  
 
PRODUCT PREVIEW 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 PRESSURE
 
  Model CT5  
 
PRODUCT PREVIEW TECHINICAL SPECIFICATION  
Model CT5
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.
 
 
     
 
ACCESSORIES
 
     
 
PRODUCT PREVIEW PRODUCT PREVIEW PRODUCT PREVIEW
Tool Box Steel Carrying Box for Tester (optional) Instruction Manual
 
Incremental Weights (optional) Weight Box  
 
 
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Relative Links [Pressure Gauges] | [Manometers] | [Dead Weight Testers / Comparison Testers] | [Pressure Switches]
  [Pressure Recorders] | [Digital Pressure Indicators / Controllers]
 
40, Picket Road, 2nd Floor, Kalbadevi, Mumbai - 400002, Maharashtra, India.
* Tel. : +91 (022) 22065104 / 22059501 * Telefax : +91 (022) 22065104 * Resi. : +91 (022) 28798335 * Mobile : 9820611993
* Email : response@japsin.com / japsin33@mtnl.net.in * Website : http://www.japsin.com / http://www.japsininstrumentation.com
 
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