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Summary of Contents for Ralston Instruments DCAP-PV
- Page 1 EN Pneumatic Pressure/Vacuum Scissor Hand Pumps (DCAP-PV) Operation Manual For all models of DCAP-PV Pneumatic Pressure/Vacuum Scissor Hand Pumps...
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Page 3: Table Of Contents
Table of Contents Specifications ................2 Requirements................3 Important Safety Notices ............4 Pneumatic Pressure/Vacuum Scissor Hand Pump Overview..............5 Setting Up ..................6 Calibration ..................10 Venting System ................17 Storage and Transport ..............18 Maintenance ................19 Troubleshooting ................20 Support ..................21... -
Page 4: Specifications
Specifications Pressure Range 0-650 psi (45 bar) Vacuum Range 28.5 inHg / 760 mmHg Media Pressure Reference Port Male Ralston Quick-test™ outlet port, no check valve, stainless steel Pressure Outlet Port Male Ralston Quick-test™ outlet port with cap and chain, stainless steel Temperature Range 0 to 130 °F (-18 to 54 °C) -
Page 5: Requirements
Requirements * ralstoninst.com/adapters What you need to use your Pneumatic Pressure/Vacuum Scissor Hand Pump: 1. Wrenches 2. Thread Tape 3. Ralston Quick-test™ Adapters 4. Device Under Test 5. Ralston Quick-test™ Hoses 6. Pressure Reference... -
Page 6: Important Safety Notices
Important Safety Notices WARNING: Do not exceed Maximum Working Pressure for this product or damage may result. WARNING: Device under test should be isolated from the process, vented and vent valve closed prior to use. WARNING: Do not attempt to operate this pump until you have read and fully understand the instructions and hazards of the product. -
Page 7: Pneumatic Pressure/Vacuum Scissor Hand Pump Overview
Pneumatic Pressure/Vacuum Scissor Hand Pump Overview 1. Fine Adjust Valve 2. Outlet Port 3. Bleed Valve 4. Outlet Port with Cap & Chain 5. Pressure/Vacuum Knob 6. Pump Handles... -
Page 8: Setting Up
Setting Up Connecting Reference Gauge Male NPT Reference Gauge 1. Reference Gauge with NPT male connection 2. NPT Female Ralston Quick-test™ Adapter 3. Ralston Quick-test™ Hose... - Page 9 Male BSPP Reference Gauge 1. Reference Gauge with BSPP male connection 2. BSPP Washer 3. BSPP Female (RG) Ralston Quick-test™ Adapter 4. Ralston Quick-test™ Hose...
- Page 10 Female NPT Pressure Reference Gauge 1. Reference Gauge with NPT female port 2. NPT Male Ralston Quick-test™ Adapter 3. Ralston Quick-test™ Hose...
- Page 11 Connecting Device Under Test (DUT) Isolate the Device Under Test (DUT) from the process and vent DUT prior to connecting to it. 1. Ralston Quick-test™ Hose 2. NPT Male Ralston Quick-test™ Adapter 3. Device under test (DUT)
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Page 12: Calibration
Calibration Prepare the Pump Close Bleed Valve. - Page 13 Calibrate with Pressure Turn Pressure/Vacuum Knob counterclockwise for pressure.
- Page 14 Increase Pressure Test point Pump to just below test point. Let pressure reading stabilize. This may take several minutes. Fine-adjust to exact test point. Repeat steps 1 through 2 for each test point up-scale.
- Page 15 Decrease Pressure Test point Open Bleed Valve to decrease pressure to just above test point. Fine-adjust to exact test point. Repeat steps 1 and 2 for each test point down-scale.
- Page 16 Calibrate with Vacuum Turn Pressure/Vacuum Knob clockwise for vacuum.
- Page 17 Increase Vacuum Test point Pump to just above test point. Let vacuum reading stabilize. This may take several minutes. Fine-adjust to exact test point. Repeat steps 1 and 2 for each test point down-scale.
- Page 18 Decrease Vacuum Test point Open Bleed Valve to decrease vacuum to just below test point. Fine-adjust to exact test point. Repeat steps 1 through 2 for each test point up-scale.
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Page 19: Venting System
Venting System Release Pressure Release Vacuum When finished testing, open the Bleed Valve and vent the system. -
Page 20: Storage And Transport
Storage and Transport Vent system when calibration is completed. See page 17. * Ralston Pneumatic Scissor Hand Pump Carrying Case (DCAP-CASE). Sold separately. -
Page 21: Maintenance
Maintenance Maintenance Interval Every 300 uses or 3 months Maintenance Procedure • Lubricate the Ralston Quick-test™ fittings by squirting 2 ml of oil inside the connection. • Lubricate the Fine Adjust Piston O-rings with silicone-based lubricant. • Lubricate the threads on the Fine Adjust Piston with a graphite-based grease, such as Dow Corning Moly-kote G-n Metal Assembly Paste (or equivalent). -
Page 22: Troubleshooting
Troubleshooting The Pumping Piston is difficult to pump If the Pumping Piston is difficult to pump over years of service, then apply a thin coat of graphite grease such as Dow Corning Moly-kote G-n Metal Assembly ® Paste (or equivalent). If the issue was not resolved by these troubleshooting instructions, then please contact support listed on page 21. -
Page 23: Support
Support Hours: 8:30 am – 5:00 pm EST Phone: 1 440-564-1430 • Toll Free: 1 800-347-6575 (US and Canada) Web: ralstoninst.com/support Email: support@ralstoninst.com Parts and Service: ralstoninst.com/dcappv... - Page 24 Pneumatic Pressure/Vacuum Scissor Hand Pumps (DCAP-PV) Operation Manual For all models of DCAP-PV Pneumatic Pressure/Vacuum Scissor Hand Pumps ralstoninst.com Hours: 8:30 am – 5:00 pm EST Phone: 1 440-564-1430 Toll Free: 1 800-347-6575 (US and Canada) Support: ralstoninst.com/support • Parts and Service: ralstoninst.com/dcappv Email: support@ralstoninst.com...
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