Calibration
4-4 SVP Controller Operation Manual Part No.: 44200004 - Revision 2
Figure 4-5: Recommendation for seal change
4.3 Volume Water Draw
Equipment
1. Water draw kit: Contact Honeywell Enraf representative or factory
directly to obtain a water draw kit, (see Figure 4-6).
2. Source of clean potable water. Pump or water supply must have steady
flow of approximately 38 Lpm (10 GPM) at 172-690 kPa (25-100 psi)
Water supply must maintain non-pulsating pressure.
3. Certified volume test measures (conforming to API chapter 4 section 7)
traceable to the U.S. NIST (or other National standards). The test
measure should be of the same volume as the displaced volume of the
prover. If, however, the test measure is smaller than the prover volume,
there must be at least two test measures, as the flow during water
draws should be continuous for the greatest precision. Example: For a
20-gallon prover uses a single 76 L (20 gal) test measure.
4. Certified high resolution pressure gauge: 0-690 kPag (0-100 psig) psig
5. Three traceable thermometers with 0.1°C (0.2°F) degree graduations
(for thermometer reference positions see Figure 4-7).
6. Water overboard container, volume to be at least as large as test
measure, and approximately the same height.
Note: Honeywell Enraf Water Draw P&T kit or equivalent assembly eases
installation of water draw prover instrumentation. The Honeywell
Enraf Water Draw P&T kit consists of four traceable temperature
thermometers (one spare thermometer included) and one pressure
gauge. All thermometers come with the calibration certifications if
ordered from Honeywell Enraf.
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