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Signet 2552 Metal Magmeter
*3-2552.090*
3-2552.090
Rev E
SAFETY INSTRUCTIONS
1.
Depressurize and vent systems without Hot-tap valve prior to installation or removal.
2.
Confi rm chemical compatibility before use.
3.
Do not exceed maximum temperature/pressure specifi cations.
4.
Wear safety goggles or face shield during installation/service.
5.
Do not disassemble or alter product construction.
6.
Disconnect power before attempting any service or wiring.
1. Description
The Signet 2552 Metal Magmeter from Georg Fischer features all-stainless steel construction. The PVDF nosepiece and FPM O-rings
are the only other wetted materials. The 2552 installs quickly into standard 1¼ in. or 1½ in. pipe outlets, and is adjustable to fi t pipes
from DN50 to DN2550 (2 to 102 inches). Three sensor lengths allow maximum fl exibility to accommodate a variety of hardware
confi gurations, including ball valves for hot-tap installations.
When equipped with the frequency output, the 2552 is compatible with any Signet fl ow instrument, while the S
multi-channel compatibility with the Signet 8900 Multi-Parameter Flow Controller. Select the blind 4 to 20 mA current output to interface
directly with dataloggers, PLCs or telemetry systems.
Key features include Empty Pipe Detection, LED-assisted troubleshooting, and Bi-Directional span capability (in 4 to 20 mA models).
The Signet 3-0250 USB to Digital (S
so it can be adapted to the user's application requirements.
2. Specifi cations
Performance
Pipe size range: DN50 to DN2550 (2 in. to 102 in.)
Flow Range:
Minimum:
0.05 m/s (0.15 ft/s)
Maximum:
10 m/s (33 ft/s) for pipes to DN 1200 (48 in.)
3 m/s (10 ft./s) for pipes over DN 1200 (48 in.)
Linearity:
±(1% reading + 0.01 m/s)
±(1% reading + 0.033 ft/s)
Repeatability:
±0.5% of reading @ 25 °C
Accuracy:
±2% of measured value (in reference conditions
where the fl uid is water at ambient temperature, the sensor
is inserted at the correct depth and there is a fully developed
fl ow profi le which is in compliance with ISO 7145-1982 (BS
1042 section 2.2))
20 μS/cm
Minimum Conductivity:
Wetted Materials
316L Stainless Steel body and electrodes
PVDF Insulator
O-rings:
FPM (standard)
Cable: 4-cond + shield, PVC jacket (Fixed cable models) or
Water-resistant rubber cable assembly with Turck
connector
Power Requirements
4 to 20 mA: 24 VDC ± 10%, regulated, 22.1 mA maximum
Frequency:
5 to 24 VDC ± 10%, regulated, 15 mA maximum
3
Digital (S
L): 5 to 6.5 VDC, 15 mA maximum
Reverse polarity and short circuit protected
Cable Options
Fixed 7.6 m (25 ft) cable
Detachable water tight sensor cable with Turck
sold separately, two lengths: 4m (13 ft) or 6m (19.5 ft)
Custom lengths available, contact Georg Fischer Signet
07/10
English
3
L) Confi guration/Diagnostic Tool is available to customize every performance feature in the 2552
®
NEMA 6P
®
connector
Electrical
Current Output (4 to 20 mA)
Programmable and reversible
Factory Range: 4 to 20 mA = 0 to 5 m/s
Loop Accuracy:
32 μA max. error (@ 25 °C @ 24 VDC)
Temp. drift: ±1 μA per °C max.
Power supply rejection: ±1 μA per V
Isolation: Low voltage < 48 VAC/DC from electrodes and
auxiliary power
Maximum cable: 300 m (1000 ft)
Max. Loop Resistance: 300 Ω
Error condition: 22.1 mA
Frequency output
Compatible with Signet 5075, 5500, 5600, 8550 and 8900
Max. Pull-up Voltage: 30 VDC
Short Circuit Protected: ≤ 30 V @ 0 Ω pull-up for one hour
Reverse Polarity Protected to -40 V for 1 hour
Overvoltage Protected to +40 V for 1 hour
Max. Current Sink: 50 mA, current limited
Maximum cable: 300 m (1000 ft)
3
Digital (S
L) Output
Compatible with Signet 8900
Serial ASCII, TTL level 9600 bps
Maximum cable: Application dependent (See 8900 manual)
Standards and Approvals
CE
U.S. Patent No.: 7,055,396 BI
NEMA 4 (IP65) (fi xed cable models)
NEMA 6P (IP68) (Submersible cable models only)
Signet recommends maximum 3 m. (10 ft) submersion depth
for maximum 10 days continuous submersion.
Manufactured under ISO 9001 and ISO 14001
China RoHS (Go to www.gfsignet.com for details)
English
3
L Digital output enables

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Summary of Contents for Georg Fischer Signet 2552

  • Page 1 1. Description The Signet 2552 Metal Magmeter from Georg Fischer features all-stainless steel construction. The PVDF nosepiece and FPM O-rings are the only other wetted materials. The 2552 installs quickly into standard 1¼ in. or 1½ in. pipe outlets, and is adjustable to fi t pipes from DN50 to DN2550 (2 to 102 inches).
  • Page 2 2.1 Temperature and Pressure Specifi cations 2552 Magmeter Temperature-Pressure Operating Range Max. Temperature/Pressure Rating Storage Temperature: 20.6 -15 °C to 70 °C (5 °F to 158 °F) in non-icing conditions 19.8 Operating Temperature 18.1 • Ambient: -15 °C to 70 °C (5 °F to 158 °F) in non-icing conditions 16.4 •...
  • Page 3: Selecting A Location

    3. Selecting a Location The 2552 requires a fully developed turbulent fl ow profi le for accurate measurement. Selecting the correct location in the piping system is critical to the performance of the magmeter. Locate the magmeter where air bubbles will not contact the electrodes. Placing the sensor in a vertical section of pipe, with fl...
  • Page 4: General Installation And Grounding Tips

    4. General Installation and Grounding Tips 4.1 Sensor conditioning The Magmeter output signal may be unstable immediately after installation. Allowing the sensor to soak in a full pipe (or in any container of water) for 24 hours will stabilize the performance. •...
  • Page 5 4.3 Preparing for Installation The alignment of the electrodes in the pipe and the insertion depth of the electrodes in relation to the inside diameter of the pipe are critical to the successful operation and calibration of the system. The brass rod that is supplied with the 2552 is used to assist with this requirement.
  • Page 6: Magmeter Installation

    5. Magmeter Installation The following items are required to properly install the Magmeter: Not supplied with the 2552 Magmeter: Supplied with 2552 Magmeter: • Female pipe fi tting (weld-on or saddle) with: • Ruler 1¼ in. NPT or ISO 7/Rc 1¼ threads (2552-2) •...
  • Page 7 4. Adjust the magmeter position and insertion depth Insert the brass rod through the alignment reference hole located directly below the sensor adjustment hub. Adjust the height of the magmeter by turning the sensor adjustment hub clockwise until the distance from the The distance from the OUTSIDE of the pipe to the bottom of the alignment rod is OUTSIDE of the pipe...
  • Page 8 6. Wiring the 3-2552-XX-11 with Frequency or Digital (S L) output 6.1 Wiring: Frequency output (Compatible with all POWERED Signet Flow instruments.) • The 2552 outputs an open collector frequency signal that can be connected to any powered Signet fl ow meter. (Models Sensr Gnd White 5075, 5500, 5600, 8550, 8900.)
  • Page 9: Calibration Data

    The data in these tables is based on dimensions of metal pipe per ANSI 36.10 and ANSI 36.19. Stainless steel and carbon steel pipe schedules have the same dimensions according to ANSI standards. Contact the local Georg Fischer Signet distributor for assistance with pipe sizes and materials not listed. Inch...
  • Page 10 The data in these tables is based on dimensions of metal pipe per ANSI 36.10 and ANSI 36.19. Stainless steel and carbon steel pipe schedules have the same dimensions according to ANSI standards. Contact the local Georg Fischer Signet distributor for assistance with pipe sizes and materials not listed. Inch Inch 0.38...
  • Page 11: Technical Support Information

    8. Technical Support Information 8.1 Bi-Directional Flow The 2552 magmeter is designed to measure bi-directional fl ow. • 4 to 20 mA output models: May be scaled to span any fl ow range: For example: "4 to 20 mA = -100 GPM to +100 GPM" FLOW→...
  • Page 12 8.3 Troubleshooting with the RED and BLUE lights The 2552 uses two colored LEDs to indicate the status of the measurement. They are located at the top of the magmeter, recessed inside the threaded steel housing. Look down the outer housing to see them. No Lights: The power is off or the sensor is not connected Solid Blue:...
  • Page 13: Sensor Selection Guide

    Sensor Selection Guide The 2552 Magmeter can be installed into a variety of pipe sizes. Follow the steps below to ensure that you choose the right sensor for your application. Fig. 1 Step 1: Determine how the sensor will be installed Standard installation with “A”...
  • Page 14 Notes: 2552 Magmeter...
  • Page 15 Notes: 2552 Magmeter...
  • Page 16: Ordering Information

    1¼ in. NPT or ISO Process Connection threads to replace 1½ in. NPT or ISO threads Georg Fischer Signet LLC, 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057 For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): (800) 854-4090 For the most up-to-date information, please refer to our website at www.gfsignet.comw...

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