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AMETEK Drexelbrook
CM3 Series Cut Monitor

CM3 Series Cut Monitor

Product catalog summary

Overview: The Drexelbrook CM-3 Cut Monitor is a device designed to measure water content in crude oil or refined products, using HART® communication protocol. It provides digital readouts of water percentage from 0 to 50%.

Specifications: The CM-3 operates as a two-wire transmitter with a power requirement of 20 to 50 Vdc and outputs 4-20 mAdc. It functions within an ambient temperature range of -30° to +140°F and is housed in a Nema 4X rated enclosure. Accuracy is ±0.1% for 1% and 5% water ranges, and ±5% for 10%, 30%, and 50% ranges.

Design and Installation: The sensing element is easily installed through a tee in a vertical pipe section and can be removed without draining lines. Optimal performance is achieved by mounting the sensor at a 90° bend in the pipe. The device is factory-calibrated and adjustable for seasonal changes using proprietary software.

Features: The CM-3 includes a digital local indicator, is resistant to ambient temperature changes, and requires minimal maintenance due to its solid-state design. It features a Cote-Shield™ element to prevent paraffin build-up.

Applications: Suitable for well testers, freewater knockouts, heater treaters, and other separation vessels. It can also be used in LACT units to divert wet oil for further processing.

Safety and Compliance: The sensing element is intrinsically safe for all hazards, and the electronics are safe for Groups C & D (Div. 1 & 2) when supplied from an intrinsically safe power source. The device is explosion-proof with worldwide approvals.

Ordering Information: Available in various models for different pipe sizes and configurations, with options for integral or remote electronics. Spare parts and accessories are available for different pipe sizes and in-tank applications.

Additional Specifications: The CM-3TM Smart Cut Monitor outputs 4-20 mA, uses HART® protocol, and requires a supply voltage of 20-30 Vdc. It has a measurement range of 0-1% to 0-50% water, with repeatability of ±0.5% span and resolution of 0.2% span. Calibration is done via PC software with factory-loaded settings.

Housing Options: Includes remote Nema 4X explosion-proof and indicating, integral Nema 4X explosion-proof with Drexelcote, and integral Nema 4X explosion-proof.

Agency Approvals: Approved by CSA and FM.

Digital Indicator: Available for remote electronics, featuring a 3.5 digit liquid crystal display calibrated for % water.

Environmental and Safety Standards: Electronic housing meets Nema 1-5 and 12 including Nema 4X. FM approved explosion-proof for various classes and groups. Cable and sensor are intrinsically safe for all Groups, Division 1 & 2.

Dimensions: Detailed dimensions are provided for both integral and remote mount housings.

Contact Information: Includes contact details for Drexelbrook and AMETEK offices in Japan, Singapore, Germany, and the USA.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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