The Model WCM 7300MEis designed to provide the highest possible sensitivity, resolution, and accuracy for water content determination in crude oil, other hydrocarbons, or other low dielectric liquids from a max of 25% to levels below 0.01% parts per million (ppm). In oil and natural gas (condensate) production, water cut measurements are significantly improved with the WCM 7300ME technology. Enhanced digital signal processing and full product temperature compensation are two of the technological advancements utilized by this device. Water cut, process temperature or probe electrical value can be selected for viewing without removing condulet cover by use of a supplied magnet to operate an internal reed switch.
Overview
Features
• NACE adaptable.
– Can be modified for use in NACE applications.
Applications
LACT (Lease Automatic Custody Transfer) Units
Detect and provide relay contact closure that can be used to reroute oil that has excess S&W.
Pipeline Loading
Monitor transfer of petroleum/condensate products from loading facilities.
Dehydration Equipment
Determine and enhance equipment efficiencies, by monitoring the product and indicating water content.
Fuel Oil Monitoring
Determine contamination of fuel oil by condensation, or other external factors, before entry to engine.
Storage and Treating Facilities
Monitoring and early detection of undesirable conditions as well as interface detection during dewatering of storage tanks.
Specifications
| Measurement / Monitor Specifications | |
| Power Supply | 20-30 Vdc +/-10% @ nominal, 200 mA max. |
| Water Cut Monitor Full Scale Range | – 0-25% – Field adjustable to 0-5%, 0-10%, 0-25%. |
| Display | Four digit LCD with decimal point. |
| Analog Outputs | 4-20 mA, 2-wire internally powered or 4-20 mA, 3-wire externally powered. |
| Relay Output | – SPDT Relay, 10A, 250 Vac. – 1/2 Hp 250 Vac, 10A – 120 Vac resistive. – 1/3 Hp 120 Vac, 10A – 30 Vdc resistive. |
| Time Delay | – 0 to 90 seconds adjustable in 10 second increments. – Off-delay approximately 10% of on-delay time. |
| Temperature Range | – 0°F to 160°F (-20°C to 70°C). |
| Enclosures | – NEMA 4X, weatherproof. – NEMA 7, explosion-proof, Class I, Division 1, Groups C and D. |
| Normal variances are: | +/- .05 from 0 to 5% water +/- .1 from 5 to 10% water +/- .15 from 10% to 15% water +/- .2 to .25 from 15 to 25% water |
| Displays | – Two lines 16 character, alphanumeric LCD showing by selection: – Water Cut – Process Temperature – Probe Electrical Value Red/Green LED showing good oil, bad oil, or by passing, condition. |
| Pressure Ratings | – As per Flange selection, 1440 psig max. (Others by special order) – NPT – 1440 psig max. – Victaulic grooved – 350 psig |