Sparling Tigermag FM656

Description

Sparling instruments
The Model 656 is a microprocessor based
electromagnetic flowmeter designed to
measure the flow of conductive liquids in full
pipes. The sensor and the transmitter are
integral and enclosed in a NEMA-7
explosion-proof housing. The sensor
housing is made of steel.
The Model 656 magnetic flowmeter is based
on Faraday's Law which states that the
voltage induced in a conductor moving
through a magnetic field is proportional to
the velocity of that conductor. The
magnetic flowmeter will measure liquids with
conductivities greater than 5 micromhos.
MODEL FM-656 SPECIFICATIONS                April 20, 2004
1.0    The magnetic flowmeter shall be microprocessor-based, and flanged. It shall indicate, totalize, and transmit flow in full pipes.
1.1    The magnetic flowmeter shall utilize DC bipolar pulsed coil excitation, operating at frequencies up to 100 Hz and automatically re-zeroing after every cycle.
1.2    The accuracy shall be at least 0.5% (≥ 50% of span) of flow rate over a 33:1 turndown at all flow rates above 1 fps. Accuracy shall be verified by calibration in a flow laboratory traceable to the U.S. National Institute of Standards and Technology.
1.3    The flow sensor liner shall be Ceramic, Hard Rubber, Soft Rubber, Neoprene, Polyurethane or Tefzel®. The housing shall be steel.
1.4    The integrally-mounted flow sensor and transmitter shall be FM approved for Class I, Division 1 & 2, Groups B, C, D and Class II, Division 1, Groups E, F, G environments without use of air purge. CSA Approved for Class I, Division 2.
1.5    The electronics shall be integrally or remote mounted.
1.6    When remote mounted, the flowmeter transmitter shall be furnished in a NEMA-4X enclosure box, with a larger 3/8" character, 2-line 16 digit backlit display and 15 feet of cable (standard). Batch controller option available.
1.7     The flowmeter shall be suitable for operation at temperatures from -40°F to 266°F and at pressures from full vacuum to 740 psi. Temperatures to 420°F (optional).
1.8    The flowmeter electrodes on ceramic liners shall be fused platinum and shall not require O-rings.
1.9    The meter shall incorporate HI-Z circuitry. The preamplifier input impedance shall not be less than 1012 ohms. External ultrasonic electrode cleaners shall not be acceptable.
2.0    Available outputs shall be 1) Isolated analog 4-20 mAdc into 800 ohms (standard);  2) scaled pulse 24 Vdc with selectable 12.5/25/50/100 ms on time, max. freq. 60 Hz.;  3) 0-1000 Hz freq., for 0-100% flow rate. 15 Vdc; 4) two flow alarms; 5) fault, with open collector; 6) RS232 communication; 7) flow direction with open collector; 8) Positive Zero Return (PZR) for external relay contacts. Outputs 2 & 3 can be open collector if required.
2.1    Low flow cutoff shall be selectable from 0-9% of FS and there shall be two flow alarms settable from 0-99% of span.
2.2    A 2-line, 16 character backlit alphanumeric display shall indicate user-defined flow units and total flow. All menu advice and commands shall be visible on this display. The display shall be modular and rotatable 360°, in 90° increments. Characters shall be at least 0.125" high for ease of readability.
2.3    The flowmeter shall incorporate the MAG-COMMAND feature allowing menu selection and changes to be made from outside the housing via Hall-effect sensors. It shall not be necessary to remove covers, panels or fasteners to accomplish calibration or program changes.
2.4    The TigermagEP's unique diagnostic functions eliminate the need for a techican to carry test equipment or open the housing.  Current ramp, complete coil check and true front-end input simulator may be activated in MAG-COMMAND without opening the enclosure.
2.5    The meter software shall incorporate a password feature preventing inadvertent program changes.
2.6    The meter shall feature nonvolatile E2PROM memory and universal electronics module compatibility between all TigermagEP meters.
2.7    The flowmeter shall have a switching power supply having an operating range from 77 - 265 Vac 50/60 Hz (12-60 Vdc). Power consumption shall not exceed 20 Watts.
2.8    All printed circuit boards shall be contained in a plug-in module and be interchangeable for any size without requiring test equipment.
2.9    The flowmeter manufacturer shall have meters of the DC pulse type in similar flowing mediums for a minimum of five years.
3.0    The flowmeter shall be warranted against defective workmanship or materials for a period of two years from date of shipment.
4.0    Totalized flow and programmed configuration shall be maintained in memory for the meters lifetime.
5.0    The flowmeter shall be MODEL 656 TigermagEPTM as manufactured by Sparling Instruments, Inc.