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| DEAD WEIGHT PRESSURE GAUGES TESTER |
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For calibration of Pressure Gauges and other sensing, transmitting and recording pressure instruments. Relationship between |
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pressure acting on the known area of a vertically free floating piston producing a force balanced by known dead weight is made |
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use of in the Dead Weight Pressure Gauge Tester. |
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The main components of a Dead Weight Pressure Gauge Tester are: |
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Screw Pump to generate pressure in the circuit. Of adequate capacity and operated by turning the spoked handle. Permits easy |
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and accurate setting of pressure. |
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Free Piston Assembly of special steel, hardened, tempered, ground and lapped to accurate size and very fine surface finish to |
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provide true floating action. |
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Set of Weights directly marked in convenient values of pressure and easily stacked on the carrier weight. Available in either/and |
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kgf/cm2, bar Cbf/in² units. Other units on request. Storage box provided. Incremental weights to provide smaller steps available |
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at extra cost for all models mentioned below. |
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Gauge Connector of 1/2" BSP (female) union for connecting gauge to be tested. Other sizes of gauges can be connected by using |
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adaptors. |
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Baseplate of sturdy construction provided with legs and levelling screws. The entire circuit is protected by a Sheet Metal Cover. |
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DW 10 SERIES |
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| PRODUCT PREVIEW |
TECHINICAL SPECIFICATION |
DIAGRAM |
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| MODEL |
| DW 10 |
| DW 11 |
| DW 12 |
| DW 13 |
| DW 14 |
| DW 15 |
| DW 16 |
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| 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 |
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| 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 |
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DW 20 SERIES |
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| PRODUCT PREVIEW |
TECHINICAL SPECIFICATION |
DIAGRAM |
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| MODEL |
| DW 21 |
| DW 22 |
| DW 23 |
| DW 24 |
| DW 25 |
| DW 26 |
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| Min. |
Step. |
Max. |
| 2 |
0.5 |
160 |
| 4 |
1 |
250 |
| 5 |
1 |
400 |
| 10 |
2 |
600 |
| 10 |
2 |
800 |
| 10 |
2 |
1000 |
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| Min. |
Step. |
Max. |
| 20 |
10 |
2000 |
| 40 |
10 |
3600 |
| 50 |
10 |
5000 |
| 100 |
20 |
8000 |
| 100 |
20 |
12000 |
| 100 |
20 |
15000 |
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DW 30 SERIES |
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| PRODUCT PREVIEW |
TECHINICAL SPECIFICATION |
DIAGRAM |
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| MODEL |
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| DW 30 |
L.P. |
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H.P. |
| DW 31 |
L.P |
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H.P. |
| DW 32 |
L.P. |
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H.P. |
| DW 33 |
L.P |
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H.P. |
| DW 34 |
L.P. |
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H.P. |
| DW 35 |
L.P. |
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H.P. |
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| 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 |
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| 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 |
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Models of DW 30 series are provided with 2 free piston assemblies for giving Low Pressure range with smaller steps and High |
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Pressure range with larger steps in a single instrument with substantial cost saving. The ratio of areas of LP and HP Free Pistons |
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is generally 10: 1. Ratio of 5: 1 or 20: 1 car also be provided. |
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| COMPARISON TEST PUMP FOR PRESSURE |
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For quick calibration by comparison with Master Gauge. The Master Gauge to be periodically checked on Dead Weight Pressure |
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Pressure Gauge Tester. Two Gauge Connectors are provided for connecting master gauge and gauge to be tested to the same |
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hydraulic pressure. Screw Pump to generate pressure inthe circuit. Permits easy and accurate setting of pressure. |
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MODEL CP - 1 |
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| PRODUCT PREVIEW |
RANGE |
DIAGRAM |
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0 - 100 kgf/cm² |
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0 - 1500 Ibf/in² |
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Model CP1 : with a large capacity screw pump and a removable oil reservoir with isolating valve in a simple line circuit permitting |
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effective air removal. |
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MODEL CP - 1 |
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| PRODUCT PREVIEW |
RANGE |
DIAGRAM |
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0 - 700 kg/cm² |
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0 - 10000 Ibf/in² |
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CP-3 |
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0 - 1000 kgf/cm² |
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0 - 15000 Ibf/in² |
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Model CP2 & CP3: with lever operated Priming Pump also giving continuous oil delivery for filiing up large gauges or even external |
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piping. Capable of developing 10% of the instrument range and with isolating valves at both ends. Unique closed circuit for |
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effective air removal. |
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Water Operated models are also available in Comparison Test Pumps. All wetted parts will be made of stainless steel. |
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| DEAD WEIGHT VACUUM GAUGE TESTER |
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Model DT 55 |
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| PRODUCT PREVIEW |
TECHINICAL SPECIFICATION |
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| MINIMUM |
SMALLEST |
MAXIMUM |
UNIT |
| VACCUM |
STEP |
VACUUM |
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| 0.1 |
0.02 |
0.96 |
kgf/cm² |
| 50 |
10 |
710 |
mmHg |
| 2 |
0.5 |
28 |
inHg |
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Model DT 55 : For calibration of vacuum gauges and other sensing, transmitting and recording vacuum instruments. The Vacuum |
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Gauge. Tester is a quick and convenient method of calibration free from the disadvantages of using the fragile mercury |
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manometer. The main components of the tester are: |
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SCREW PUMP to generate the vacuum in the tester conveniently and precisely. Of adequate capacity and operated by turning the |
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spoked handle. |
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FREE PISTON Assembly of special steel, hardened, tempered, ground and lapped to accurate size and very fine surface finish to |
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provide true floating action. The free piston is suspended vertically downwards from a rigid frame and connected by a pipe to the |
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screw pump. A CARRIER weight is attached to the free piston for taking more weights. |
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VALVE is provided to connect the circuit to the atmosphere and thus check zero ofthe gauge. |
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GAUGE CONNECTOR of ½" BSP (female) union for connecting gauge to be tested. Other sizes of gauges can be connected by |
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using adaptors. |
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SET OF WEIGHTS directly marked in convenient values of vacuum and easily stacked on the CARRIER weight. Available in either |
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/and kgf/cm2, mmHg, inHg units. Storage box provided. BASEPLATE of sturdy construction provided with legs and levelling |
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screws. |
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| COMPARISON TEST PUMP FOR PRESSURE |
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Model CT5 |
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| PRODUCT PREVIEW |
TECHINICAL SPECIFICATION |
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| 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. |
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| PRODUCT PREVIEW |
PRODUCT PREVIEW |
PRODUCT PREVIEW |
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| Tool Box |
Steel Carrying Box for Tester (optional) |
Instruction Manual |
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| Incremental Weights (optional) |
Weight Box |
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