Seametrics IP800 Operating Manual

IP800-Series
FLOW SENSOR INSTRUCTIONS
• IP810
• IP820
IP800-SERIES FLOW SENSOR INSTRUCTIONS
9001:2008
CERTIFIED COMPANY
TABLE OF CONTENTS
General Information
Features, Specications .....................................................................................................................................Page 3
Installation
Insertion Depth, Distorted Flows, Fitting Installation, Meter Installation, Positioning the Meter...................Page 4
Straight Pipe Recommendations .......................................................................................................................
Full Pipe Recommendations .............................................................................................................................. Page 6
Connection Diagrams
FT415/FT420/AO55, Connecting to PLC's........................................................................................................ Page 7
Operation
Minimum Flow, Flow Range Table, Calibration (“K-Factor”), Field Calibration................................................Page 8
Maintenance
Rotor Replacement, Signal Troubleshooting, Sensor Replacement ............................................................... Page 9
Parts Explosion
Parts List .............................................................................................................................................................Page 10
Troubleshooting
Problems, Probable Causes, To Check, To Repair ............................................................................................Page 11
TABLES AND DIAGRAMS
Page 5
Specifications, Features ........................................................................................Page 3
Distorted Flows, Positioning the Meter ..................................................................Page 4
Straight Pipe Recommendations ...............................................................................
Full Pipe Recommendations ...................................................................................Page 6
Connections Diagrams ...........................................................................................Page 7
Flow Range Table, K-Factor Number on Tee Fitting, K-Factor Chart, Pressure vs. Temp Chart...................Page 8
Rotor and Sensor Replacement .............................................................................Page 9
Parts Explosion, Parts List ........................................................................................................................Page 10
Troubleshooting............................................................................................................................................Page 11
Page 5
Page 2
GENERAL INFORMATION
The IP800-Series are impeller (or “paddlewheel”) insertion me- ters designed for use with a wide variety of liquids in pipe sizes 1/2" to 8". Sensors are available in brass, 316 stainless steel, PVC, and polypropylene. Bodies are machined from a solid rod for maximum precision. High-quality jewel bearings and nickel­bound tungsten carbide shafts are used for extreme low friction and long life. Low-ow performance is good, although other Seametrics ow meters are recommended where extremely low ows are being measured.
The rotation of the rotor is detected by a non-drag Hall-effect sensor. Output is a current-sinking pulse (square wave), which can be sent long distances (up to 2,000 feet) without a trans­mitter. This signal can be connected directly to PLC's, counters, and computer cards, as well as a variety of Seametrics controls and displays.
FEATURES
Cover or Optional Module Housing Screw
(connect ground to one)
Cable-Seal Strain Relief
Lower Housing (optional)
Seametrics IP meters are ideal for chemical proportioning ap­plications. If no display is required, a simple divider such as the PD10 provides adjustable pump pacing. For rate and total display, the FT415 (battery powered) or FT420 (loop powered) ow indicator can be mounted directly on the IP800-Series meter, or remotely on a wall or panel. The AO55 blind analog transmitter can be used to convert to a 4-20 mA output. IP meters are also compatible with the DL76 data logger and FT520 batch processor.
The IP800-Series require special ttings that ensure correct depth placement in the pipe. Fittings come in a variety of ma­terials for compatibility with specic applications. Tee ttings are individually wet-calibrated at the factory and marked with the K-factor (pulses per gallon). Saddle ttings must be eld­installed on the pipe and do not come wet-calibrated. K-factors for saddles are based on factory-testing.
Caution: Clip(s) must be installed before use.
High Pressure Model
Retaining Slot (for U-Clip) For easy installation at correct depth setting O-Ring
Jewel Bearings for superior low-ow performance Rotor
SPECIFICATIONS*
Power Source Standard Micropowered (-04 Option)
Supply Voltage/Current 6-40 Vdc/< 2 mA 3.5-16 Vdc/60 μA @ 3.5 Vdc Sensor Hall Effect sensor, 12 Vdc current sinking pulse Materials Sensor Body
Rotor PVDF (Kynar) Shaft Nickel-bound tungsten carbide (zirconia ceramic optional) Bearings Ruby jewel
O-Ring Rotor Pickup Maximum
Pressure
High Pres-
sure
Temperature Flow Range Accuracy +/- 1.5% of full scale Signal Hall effect current sinking pulse Power 6-24 Vdc, 2 mA Maximum Current Cable #22 AWG 3-con, 18’ (6m); 2,000’ (650m) maximum cable run
Regulatory
*Specications subject to change • Please consult our website for current data (www.seametrics.com).
Brass, 316 Stainless Steel, PVC, or Polypro
EPDM (Viton optional) GMR (Giant Magnetoresistive) Sensor
Brass 316 Stainless Steel
200 PSI (14 bar) 200 PSI (14 bar) 175 PSI (12 bar) @ 75˚ F
Not Available 400 psi (28 bar) Not Available
200˚ F (93˚ C) 200˚ F (93˚ C) 130˚ F (55˚ C)
0.3 - 30 ft./sec
20 mA
Mark (Standard Power Only)
PVC or Polypro
(See Pressure vs. Temp. Chart)
Page 3
INSTALLATION
Insertion Depth. The IP800-Series are xed-depth meters
that must be used with matched ttings appropriate to the application and pipe size. This ensures that the ow sensor is installed at the correct insertion depth to measure the av­erage ow velocity of the stream.
Straight Pipe. Straight pipe of at least 10 diameters up­stream and ve diameters downstream of the meter is strongly recommended for proper accuracy. This is neces­sary because the shape of the velocity prole changes as the rate increases around an elbow; placing the meter too near the elbow causes a distorted reading. Additional straight run may be needed under specic adverse circumstances (see next page).
If you can’t provide enough straight run to smooth out the velocity prole, some decrease in accuracy may result. This does not mean the meter’s reading is meaningless, however. In some applications (e.g., control system, valve operation) a repeatable reading may be more important than a highly accurate one.
POSITIONING THE METER
Okay, if no air in pipe
BEST
Okay, if no sediment in pipe.
DISTORTED FLOWS
Faster Flow
Distorted Flow Prole
Fitting Installation. Stainless steel and brass ttings have female pipe threads, requiring the appropriate male thread­ed ttings. Saddle ttings require a hole to be cut in the pipe (recommended hole size is 1-3/4”). Before cutting into the pipe, observe the drawing below to choose your meter orientation.
Causes Meter To Read High
FLOW
10X
Diameter Minimum
(See Below)
5X
Diameter Minimum
(See Below)
PVC Fittings. A PVC tting is usually installed by solvent welding. PVC tees are supplied with some upstream straight pipe, less than the recommended straight pipe require­ments. It is not advisable to connect directly to the end of these ttings with a ow disturbing device (valve, elbow), but rather add straight pipe to the end of these ttings to meet the straight pipe requirements for your application.
Meter Installation. After the meter tting is installed in the pipeline, the meter can be installed in the tting. Press the meter into the tting as far as it will go. Retain the meter in place by inserting the u-pin. The pin can be installed from either side. It may be necessary to rotate the probe back and forth slightly to start the pin into the slots on the probe. Slide the pin in as far as it will go.
Caution: Never remove the u-clip retainer when
the pipe is under pressure. Always remove pressure from the pipe before you attempt to remove the meter. Removal under pressure
may result in damage or serious injury.
Page 4
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