Ralston Instruments QTCM Operation Manual

Calibration manifold

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Calibration Manifold

(QTCM, QSCM)

Operation Manual

For all models of Ralston Calibration Manifolds

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Summary of Contents for Ralston Instruments QTCM

Page 1 EN Calibration Manifold (QTCM, QSCM) Operation Manual For all models of Ralston Calibration Manifolds...
Page 3: Table Of Contents
Table of Contents Specifications ................2 Requirements................3 Important Safety Notices ............4 Calibration Manifold Overview ...........5 Setting Up ..................6 Calibration ..................10 Venting System ................13 Storage and Transport ..............14 Maintenance ................16 Troubleshooting ................17 Support ..................19...
Page 4: Specifications
Specifications QTCM Pressure Range 0 to 3,000 psi (0 to 210 bar) Temperature Range 0 to 130 °F (-18 to 54 °C) Construction Brass, anodized aluminum Seal Materials Buna-N, Delrin, Teflon Weight 1.46 lb (0.7 kg) Dimensions W: 5.16 in (13.11 cm) H: 3.78 in (9.60 cm)
Page 5: Requirements
Requirements ", 15mm * ralstoninst.com/adapters What you need to use your Calibration Manifold: 1. Compressed Gas 2. Wrench 3. Ralston Quick-test™ Adapters 4. Pressure Reference 5. Device Under Test 6. Thread Tape 7. Ralston Quick-test™ Hose...
Page 6: Important Safety Notices
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 product until you have read and fully understand the instructions and hazards of the product.
Page 7: Calibration Manifold Overview
Calibration Manifold Overview 1. Fill Port 2. Outlet Port 1 3. Manifold Body 4. Bleed / Vent Valve 5. Outlet Port 2 6. Fill Valve 7. Fine Adjustment Piston...
Page 8: Setting Up
Setting Up Connecting Reference Gauge Male NPT Reference Gauge Male NPT Reference Gauge 1. Reference Gauge with NPT male connection 2. NPT Female Ralston Quick-test™ Gauge Adapter 3. Ralston Quick-test™ Hose 4. NPT Female Ralston Quick-test™ Adapter Male NPT Reference Gauge NPT Female Ralston Quick-test™...
Page 9 Male BSPP Reference Gauge Male BSPP Reference Gauge 1. Reference Gauge with BSPP male connection 2. BSPP Washer BSPP Female Ralston 3. BSPP Female Ralston Quick-test™ Adapter 4. Ralston Quick-test™ Hose Quick-test™ Adapter 5. BSPP Female (RG) Ralston Quick-test™ Adapter Male BSPP Reference Gauge BSPP Female Ralston Quick-test™...
Page 10 Female NPT Pressure Reference Gauge Female NPT Pressure Reference Gauge 1. Reference Gauge with NPT female port 2. NPT Male Ralston Quick-test™ Gauge Adapter 3. Ralston Quick-test™ Hose 4. NPT Male Ralston Quick-test™ Adapter NPT Male Ralston Quicktest ™ Gauge Adapter Female NPT Pressure Reference Gauge NPT Male Ralston Quicktest ™...
Page 11 Connecting Device Under Test (DUT) Isolate the Device Under Test (DUT) from the process and vent DUT prior to connecting to it. Close Bleed Valve and Fill Valve. 1. Pressure source 2. Ralston Quick-test™ Hoses 3. Device under test (DUT)
Page 12: Calibration
Calibration Pressurize System Open Pressure Source. ralstoninst.com/pressure-regulators Turn Pressure Regulator Valve clockwise.
Page 13 Increase Pressure Open Fill Valve. Close Fill Valve below Test Point. Test point Fine-adjust to exact test point. Test point Repeat steps 1 through 3 for each test point up-scale...
Page 14 Decrease Pressure Open Bleed Valve. Close Bleed Valve just above Test point test point. Fine-adjust to exact test point. Test point...
Page 15: Venting System
Venting System Vent system when calibration is completed.
Page 16: Storage And Transport
Storage and Transport Vent system when calibration is completed. See page 13. Close Pressure Source. Turn Pressure Regulator Valve counterclockwise.
Page 18: 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 lubricant. • Lubricate the threads on the valves and fine adjust piston with a graphite-based grease, such as Dow Corning G-n Metal Assembly Paste (or equivalent).
Page 19: Troubleshooting
Troubleshooting There is a drop in system pressure when the Calibration Manifold has been pressurized and the Fill Valve is closed. If there is a drop in system pressure when the Calibration Manifold has been pressurized and the Fill Valve is closed, then there is a leak. Follow these instructions to locate and repair the leak: 1.
Page 20 2. If leak is around the fill valve or the bleed-off valve, then follow these instructions: a. Remove the fill valve and/or the bleed-off valve. b. Replace the leaking part. c. Reassemble. 3. If the leak is around the vernier piston, then follow these instructions: a.
Page 21: 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/calibration-manifolds...
Page 22 Notes...
Page 24 Calibration Manifold (QTCM, QSCM) Operation Manual For all models of Ralston Calibration Manifolds 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/calibration-manifolds Email: support@ralstoninst.com...

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Qscm