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Signet 2552 Metal Magmeter

*3-2552.090*

3-2552.090 Rev E 07/10 English

English

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.

2. Speciﬁ cations

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

L Digital output enables

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

L) Conﬁ guration/Diagnostic Tool is available to customize every performance feature in the 2552

so it can be adapted to the user's application requirements.

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))

Minimum Conductivity: 20 S/cm

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

NEMA 6P

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

• 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

connector

sold separately, two lengths: 4m (13 ft) or 6m (19.5 ft)

Custom lengths available, contact Georg Fischer Signet

Electrical

Current Output (4 to 20 mA)

• Programmable and reversible

Factory Range: 4 to 20 mA = 0 to 5 m/s

• Loop Accuracy:

32 A max. error (@ 25 °C @ 24 VDC)

• Temp. drift: ±1 A per °C max.

• Power supply rejection: ±1 A per V

• Isolation: Low voltage < 48 VAC/DC from electrodes and

auxiliary power

• Maximum cable: 300 m (1000 ft)

• Max. Loop Resistance: 300 

• 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  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)

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)

Summary of content (16 pages)

PAGE 1
Signet 2552 Metal Magmeter English *3-2552.090* 3-2552.090 Rev E 07/10 English SAFETY INSTRUCTIONS 1. Depressurize and vent systems without Hot-tap valve prior to installation or removal. 2. Confirm chemical compatibility before use. 3. Do not exceed maximum temperature/pressure specifications. 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.
PAGE 2
.1 Temperature and Pressure Specifications Max. Temperature/Pressure Rating Storage Temperature: -15 °C to 70 °C (5 °F to 158 °F) in non-icing conditions Operating Temperature • Ambient: -15 °C to 70 °C (5 °F to 158 °F) in non-icing conditions • Media: -15 °C to 85 °C (5 °F to 185 °F) Hot-Tap Installation Requirements • Maximum Installation Pressure: 20.7 bar (300 psi) • Maximum Installation Temp.
PAGE 3
. Selecting a Location The 2552 requires a fully developed turbulent flow profile 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 flow going UPHILL is the first choice for this requirement. The piping system should be designed to keep the sensor wet at all times.
PAGE 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. • Very low conductivity fluids may require a longer conditioning period. • The Magmeter may not operate properly in fluids where the conductivity is less than 20 μS/cm. 4.
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. 4.4 H-Dimension The H-dimension is the distance from the TOP OF THE PIPE to the BOTTOM OF THE BRASS ROD.
PAGE 6
5. Magmeter Installation The following items are required to properly install the Magmeter: Supplied with 2552 Magmeter: • Ruler • Brass alignment rod • H-dimension value for your pipe (See pages 6–9) • Hex wrench • 2 clamp rings • Grounding screw Not supplied with the 2552 Magmeter: • Female pipe fitting (weld-on or saddle) with: 1¼ in. NPT or ISO 7/Rc 1¼ threads (2552-2) 1½ in. NPT or ISO 7/Rc 1½ threads (2552-3) • 1¼ in. or 1½ in. ball valve (for hot tap installations) • 32 mm (1¼ in.) or 40 mm (1½ in.
PAGE 7
4. Adjust the magmeter position and insertion depth a. b. • 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 OUTSIDE of the pipe to the bottom of the alignment rod is equal to the H-dimension (as recorded on pg. 5). Installation tip: If necessary, apply a suitable lubricant to the Acme threads to facilitate smooth operation.
PAGE 8
6. Wiring the 3-2552-XX-11 with Frequency or Digital (S3L) 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 flow meter. (Models 5075, 5500, 5600, 8550, 8900.) DC power is provided to the 2552 Magmeter by all Signet flow instruments. No additional power is required.
PAGE 9
7. Calibration Data 7.1 K-factors and Full Scale Current Values for 3-2552-2x - x - xx and 3-2552-3x - x - xx Magmeters K-Factor Pulse/Gal Factory set 20 mA (liter/min) Factory set20 mA (GPM) 10 16/32 267.0 16 5/32 409.9 46.19 174.83 649.5 171.6 80 2.375 0.22 1.94 10 15/32 265.9 16 3/32 408.6 52.49 198.68 571.5 151.0 2½ 40 2.875 0.20 2.47 10 14/32 264.9 16 407.7 32.37 122.54 926.7 244.8 3 3½ 4 5 6 8 10 12 H Dim mm H Dim -3X Version 2.07 -2 Version 0.
PAGE 10
7.1 K-factors and Full Scale Current Values for 3-2552-2x - x - xx and 3-2552-3x - x - xx Magmeters 34 36 38 40 42 48 54 60 66 72 78 84 90 96 102 10 8 202.69 13 19/32 345.4 0.310 1.172 96917 25606 25.00 7 28/32 200.15 13 16/32 342.9 0.316 1.195 95008 25101 STD 28 0.38 27.25 7 25/32 197.61 13 13/32 340.4 0.266 1.006 112879 29823 20/XHY 28 0.50 27.00 7 22/32 195.07 13 10/32 337.8 0.271 1.025 110817 29278 STD 30 0.38 29.25 7 19/32 192.53 13 6/32 335.3 0.
PAGE 11
8. Technical Support Information 8.1 Bi-Directional Flow The 2552 magmeter is designed to measure bi-directional flow. • 4 to 20 mA output models: May be scaled to span any flow range: For example: "4 to 20 mA = -100 GPM to +100 GPM" • Frequency output models: The 2552 will generate a frequency regardless of flow direction. Signet instrumentation cannot distinguish bi-directional flow from frequency inputs.
PAGE 12
8.3 Troubleshooting with the RED and BLUE lights The power is off or the sensor is not connected The power is on but there is no flow in the pipe. Normal operation, blink rate is proportional to the flow rate. Empty pipe indication (electrodes are not wet.
PAGE 13
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. Step 1: Determine how the sensor will be installed A. For standard (non Hot-Tap) installations: The height of the weldolet (threadolet) and pipe adapter(s) should be determined before the sensor is purchased. • For retrofit installations, the stack height, or “A” dimension (see Fig.
PAGE 14
Notes: 14 2552 Magmeter
PAGE 15
Notes: 2552 Magmeter 15
PAGE 16
Ordering Information Model 2552 Metal Magmeter Ordering Matrix 3-2552 Mounting Depth Options - Choose One* -2 Sensor insertion depth = 9.3 inches* -3 Sensor insertion depth = 14.8 inches* Process Connection Options - Choose One 1 1¼ inch NPT Process Connection Threads** 2 1¼ inch ISO Process Connection Threads** 3 1½ inch (2552-3 only) NPT Process Connection Threads** 4 1½ inch (2552-3 only) ISO Process Connection Threads** Cable and Connector Options - Choose One -A Fixed Cable, 7.