Greyline PDFM-IV Portable Doppler Flow Meter

Standard features include:

• sensor - strap-on, single head ultrasonic for 1/2" - 180" (12.5 mm - 4.5 m) ID pipes
• sensor cable - 12ft / 3.5m shielded coaxial pair
• installation - sensor coupling compound and stainless steel Sensor mounting clamp for 0.6 - 32 in. (15-800 mm) OD pipes
• enclosure - portable, aluminum (non-rated) in foam lined Cordura™ carry-case
• displays - Flow Rate: large 4-digit LCD - Totalizer/Menu/Status: 16-digit alphanumeric
• calibration - built-in 3-key programmer
• damping - keypad adjustable
• sensitivity - keypad adjustable with signal strength indication
• power input - built-in battery with internal charger - switch select 100-160VAC 50/60Hz or 200-260VAC 50/60Hz - 12 VDC (from external battery)
• outputs - 4-20mA, RS232C with programmable baud rates up to 19,200
• data logger - 50,000 point with multi-session and flow report capability
• PC software for data log retrieval by direct serial connection, or by dial-up connection with modems and telephone lines
• 1 set cables and plugs - AC power, 4-20mA, 12VDC, RS232
• 1 manual

PORTABLE DOPPLER FLOW METER SPECIFICATIONS

SCOPE: This specification covers a portable, ultrasonic Doppler-type flow meter as manufactured by Greyline Instruments, Massena, New York / Long Sault, Ontario. This instrument shall provide for non-intrusive flow measurement, indication, totalizing and transmitting of the flow rate in a full pipe.

GENERAL:

Each portable Doppler flow meter shall have the following design features and engineering specifications:

A. PERFORMANCE SPECIFICATIONS

1. Have an accuracy of ±2% of full scale on most wastewater applications. Have linearity of ±0.5% and repeatability of ±0.1%.
2. Operate on liquids with entrained particles or gases of 100 microns or larger and minimum concentrations of 75 ppm.
3. Operate on the following pipe materials: carbon steel, stainless steel, ductile iron, copper, PVC, FRP, ABS and other selected engineering materials.
4. Operate on AC/DC power. Include an internal 12VDC gel type rechargeable battery with minimum capacity for 16 hours continuous battery operation. Recharge and operate with power input of 100-160VAC and 200-260VAC 50-60Hz, and 12VDC.

B. TRANSDUCER

1. Have a single-head, strap-on transducer with twin piezo-electric ceramic transmit and receive crystals encapsulated in epoxy resin and a stainless steel housing.
2. The transducer shall be solid state and transformer isolated, and designed to meet intrinsic-safe requirements.
3. The transducer shall be waterproof and operate continuously at temperatures from -10°F to 200°F (-23°C to 93°C), and withstand accidental submersion to 10 psi.
4. The transducer shall be designed to install on pipes with inside diameter ranging from 1/2" to 180" (12.5 mm to 4.5 m).
5. Have a 12 ft (3.6 m) long flexible, shielded coaxial pair cable extending from the transducer to the electronics.
6. Shall include Manufacturer's recommended sensor coupling compound and adjustable stainless steel sensor mounting clamp.

C. ELECTRONICS

1. Have a portable aluminum enclosure in a padded Cordura™ carrying case with shoulder strap. Total weight shall be less than 10 lbs. (4.5 kg).
2. Electronics shall be designed for continuous operation at temperatures from -10° to 140°F (-23° to 60° C).
3. Have a built-in 3-key calibrator with operator selection of parameters through visual prompts from a Menu calibration system. Systems requiring calibration by Parameter codes, BCD switches or external calibrators shall not be accepted.
4. Have a continuous 4-digit LCD display indicating flow in user-selected engineering units. Have a 16-digit alphanumeric display indicating totalized flow, units of calibration, and/or signal strength.
5. Have flow proportional 4-20mA output rated to maximum resistive load of 500 ohms.
6. Have a built-in 50,000 point data logger, RS232C serial output and connecting cables. Data logger shall support time and date-stamped logging and generate formatted flow reports including total, average, minimum, maximum and times of occurrence.
7. Include Windows software for data log retrieval, graphing and export.
8. Have keypad adjustable sensitivity which modifies the received signal strength to reduce interference. Have automatic signal strength monitoring to drive the flow reading to zero at low signal threshold.
9. Have a battery status indicator with automatic low battery shut off and battery overcharge protection.

D. OPTIONAL FEATURES FOR INSERTION IN SPECIFICATION AS REQUIRED:

1. Have a Dual Head Sensor; one head transmitting and the other receiving.
2. Have a High Temperature Sensor for operating temperatures from -40° to 302°F (-40° to 150°C).
3. Include additional 150 g. manufacturer's recommended ultrasonic sensor coupling compound.
4. Include 50 ft (15 m) length Sensor Cable extension complete with connecting plugs.

E. MANUFACTURER

The instrument shall be a Model PDFM-IV Portable Doppler Flow Meter as manufactured by Greyline Instruments Inc., and warranted against defects in materials and workmanship for one year.