Signet 2507 Manuel utilisateur

2. Speciﬁcations

General

Compatibility: Signet 5075 Totalizing Monitor

Signet 5500 Flow Monitor

Signet 5600 Batch Controller

Signet 8550 series Flow Transmitter

Signet 8900 Multi-Parameter Controller

Operating Range:

• -1V sensor: 100 to 2000 mL/m (0.026 to 0.528 U.S. gpm)

(This sensor available in Europe only)

• -2V sensor: 400 to 2800 mL/m (0.105 to 0.740 U.S. gpm)

• -3V sensor: 700 to 4200 mL/m (0.185 to 1.123 U.S. gpm)

• -4V sensor: 1300 to 6000 mL/m (0.343 to 1.585 U.S. gpm)

• -6V sensor: 3200 to 12000 mL/m (0.845 to 3.170 U.S. gpm)

Accuracy: ±2% of reading

Repeatability: ±0.25% of full range

Viscosity range: 0.2 to 20.0 centistokes

Pipe connections: G 1/4in. ports, 1/4in. NPT (male) pipe adapters

(2 included)

Wetted Materials

• Housing: PVDF

• Flow insert: PTFE

• Quad ring seal: FPM

• Rotor: PVDF

• Pipe thread adapters: PVDF

• Suitable for clean ﬂuids only

Electrical

Power: 5 to 24 VDC ±10%, regulated,10 mA max.

Output Type: Open-collector, sinking, 10 mA max.

Cable Length: 7.6m (25 ft), can be extended up to 300 m

(1000 ft)

Cable type: 2-conductor shielded, twisted-pair, 22AWG

SAFETY INSTRUCTIONS

1. Do not remove from pressurized lines.

2. Confirm chemical compatibility before use.

3. Do not exceed maximum temperature/pressure specifications.

4. Wear safety goggles or faceshield during installation/service.

5. Do not alter product construction.

6. Failure to follow safety instructions could result in severe personal injury.

1. Description

The Signet 2507 Mini Flow Sensor contains a free-running rotor

which is driven by the ﬂuid ﬂow. Within the given measurement

range, the rotational speed of the rotor is proportional to the

ﬂuid ﬂow rate. Permanent magnets built into the rotor actuate an

electronic switch in the top of the sensor generating a square-

wave output signal proportional to ﬂow rate. Both opaque and

transparent ﬂuids can be measured from 0.2 to 20.0 centistokes.

Wetted sensor parts are constructed of PVDF and FPM, making

the sensor suitable for use with most process ﬂuids, including

most acids, bases, light oils, and solvents.

Signet 2507 Mini Flow Sensor

FLOW

Cable plug

25 ft cable

Pipe fitting adapter

in. NPT

(2 included)

in.

port threads

Upper body with

electronic switch

Lower body with

built-in rotor

Polar organic solvents (i.e., ketones and chlorinated

hydrocarbons) and aromatic hydrocarbons are not

compatible with this sensor.

Max. Temperature/Pressure Rating

5.5 bar @ -18 °C (80 psi @ 0 °F)• 5.5 bar @ 24 °C (80 psi @ 75 °F)• 3 bar @ 120 °C (45 psi @ 248 °F)•

Pressure Drop Across Sensor vs. Flow Rate

Shipping Weight: 0.115 kg (0.25 lb)

Standards and Approvals

CE• Manufactured under ISO 9001 and ISO 14001• China RoHS (Go to www.gfsignet.com for details)

100

-40 0 40 80 120 160 200 240 280

°C

-40 -18 4 27 49 71 93 116 138

°F

6.9

5.5

2.8

1.4

psibar

02040607080

0.25

0.50

0.75

1.00

1.25

1.50

3.63

7.25

10.88

14.50

18.13

21.76

PSI BAR

Flow rate (%) of full scale

-2V

-3V

-4V

-6V

3-2507.090 Rev. P 02/10 English

*3-2707.090*

English

WARNING!

Signet 2507 Mini Flow Sensor

3. Installation

• The sensor may be installed in any position,although

horizontal ﬂow is recommended (the sensor mounted upright).

If the sensor is not installed upright, the linearity error may be

greater in the lower part of the sensor's measurement range.

• Mounting tabs are provided using M4 or #8 self-tapping

screws (customer supplied). See Dimensions illustration for

mounting tab hole pattern speciﬁcations.

• Install sensor with the arrow pointing in the direction of ﬂow.

• Always maximize distance between the sensor and pump

source. Never install immediately downstream of valves,

ﬁttings, etc. For optimum performance, a straight ﬂow run of

at least 100 mm to 150 mm (4 to 6 in.) should be provided

before and after the sensor.

• Two pipe ﬁtting adapters (included) convert the G 1/4 in.

straight threads to 1/4 in. NPT pipe threads. Hand tighten

only! Apply 1-2 turns of PTFE sealing tape to all threaded

connections to prevent leaks..

Installation Hints

• Avoid vibrations and shocks.

• Avoid solids in the ﬂuid.

• Install a ﬁlter or line strainer upstream to protect sensor.

Sensor

Ground

(silver wire)

Sensor Power:

5 to 24 VDC

(black wire)

Sensor Signal Output

(Red wire)

Max cable length:

300 m (1000 ft)

Sensor

Plug (side)

Disregard ground

symbol on connector

95 mm

65 mm

FLOW

68 mm

4. Wiring Details

Cable Extensions

• 2507 ﬂowmeters distributed in the U.S. include 7.6 m (25 ft)

of cable.

The cable can be extended to 300 m (1000 ft).

• Always maintain cable shield through cable splice.

• 2507 ﬂowmeters distributed in Europe do not include cable.

Refer to the sensor plug connection diagram (at right) for

connection details.

FLOW

100 to 150 mm (4 to 6 in.) 100 to 150 mm (4 to 6 in.)

FLOW

Pipe Fitting

Adapters

(included)

Hand

tighten

only!

Coupling Pipe or

tubing

Mounting

tabs (3)

Sensor Plug Connection Diagram

Signet 2507 Mini Flow Sensor 3

5. Calibration

The K-Factors listed here represent the number of pulses the sensor will generate for each measured engineering unit. They are

listed in Liters and in U.S. gallons for each sensor model.

Sensor

Model Code Flow

Insert

K-FACTORS

Pulses per

LITER Pulses per

U.S. Gallon

3-2507.100-1V 198 801 731 1 mm 3413 12918

3-2507.100-2V 198 801 732 2 mm 1687 6385

3-2507.100-3V 198 801 733 3 mm 1045 3955

3-2507.100-4V 198 801 734 4 mm 721 2729

3-2507.100-6V 198 801 736 NONE 382 1446

FLOW

Red

Black

Shield

Signet

5500/5600

2507

Freq. IN

Sen. Pwr.

Freq. IN

Iso. Gnd

Open Collector

Sensor

Std. Sensor

Red

Black

Shield

Signet 8550-1

FLOW

2507

Sensr Gnd

(SHIELD)

Sensr IN

(RED)

Sensr V+

(BLACK)

Signet 8900

FLOW

2507

Input

Gnd.

10k Ω

+5 to 24

VDC

Black

Shield

Red

• Pull-up resistor required (10 kΩ recommended). Consult your instrument manual for

additional information.

Other

instrument

Other Brands

External Power supply

3-8900.621C

I/O Module 3-8900.401-X 1

+5VDC (Black)

Freq. Input (Red)

GND (Shield)

+5VDC (Black)

Freq. Input 2 (Red)

S L (Red)

GND (White/Shield)

+5VDC (Black)

S L (Red)

GND (White/Shield)

Analog Output 1

Analog Output 2

(if applicable)

Frequency

Input

Frequency

Input 2

S3L

Input

S3L

Input

2507

FLOW

Instrument Connections

Assemble

(counterclockwise)

Disassemble

(clockwise)

Upper body

Lower Body

Assembly

Tabs (3)

FLOW

Inlet port Outlet port

flow

insert

Rotor

Quad ring seal

WARNING!

Do not use tools of any kind on the sensor body or port

connections. Hand tighten only! Excessive force will

damage sensor.

6. Replacing The Flow Insert

Sensor range can be modiﬁed by changing the ﬂow insert. The

sensor must be removed from service and disassembled prior to

installing the new ﬂow insert. See Speciﬁcations (Section 2) for

ﬂow range data.

Flow Insert Replacement Procedure:

1. Depressurize system and remove sensor.

2. Rotate the upper sensor body clockwise until it releases from

the lower half, then lift off.

3. Remove rotor and quad ring seal from lower body.

4. Push the ﬂow insert outward using a small screwdriver.

5. Install the new ﬂow insert (small diameter inward) with the

eraser end of a pencil. Apply light pressure until insert seats

against the step in the lower body. Do not force!

6. Install rotor into lower body. Spin rotor with ﬁnger and check

for free rotation. If rotor hits ﬂow insert, remove rotor and

push insert back until free rotor rotation is established. Use a

rounded object like a pen or pencil body to adjust ﬂow insert

depth.

7. Install rotor, quad ring, and upper body. Hand tighten only!

Do not overtighten upper body or the lower body assembly

tabs will break.

8. Reprogram instrument with new K-Factor, see Calibration

(Section 5).

IMPORTANT!

• K-Factors must be considered as approximate

values.

• The number of pulses per volumetric unit

may vary depending on the medium and the

installation.

• For optimum performance, the system must

be calibrated after installation.

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.com

Mfr. Part No. Code

3-2507.100-1V 198 801 731 (-1V sensor available in Europe only)

3-2507.100-2V 198 801 732

3-2507.100-3V 198 801 733

3-2507.100-4V 198 801 734

3-2507.100-6V 198 801 736

Accessories and Replacement Parts

Mfr. Part No. Code Description

3-2507.080-2 198 801 550 Rotor, 2507

3-2507.080-3 198 801 547 Quad Ring, 2507

3-2507.080-5 198 801 508 DIN Connector, 2507

3-2507.081-1 198 801 548 1 mm Insert (available in Europe only)

3-2507.081-2 198 801 502 2 mm Insert

3-2507.081-3 198 801 503 3 mm Insert

3-2507.081-4 198 801 558 4 mm Insert

5523-0222 159 000 392 Cable (per foot), 2 cond. w/shield, 22 AWG

Ordering Information

Sensor Part Number

3-2507.100 Mini-ﬂow low ﬂow sensor with free-running rotor

Insert option

-1V* With 1 mm insert; for 100 to 2000 mL/m (0.026 to 0.528 gpm)

-2V With 2 mm insert; for 400 to 2800 mL/m (0.15 to 0.740 gpm)

-3V With 3 mm insert, for 700 to 4200 mL/m (0.185 to 1.123 gpm)

-4V With 4 mm insert, for 1300 to 6000 mL/m (0.343 to 1.585 gpm)

-6V With 6 mm inlet, no insert, for 3200 to 12000 mL/m (0.845 to 3.170 gpm)

3-2507.100 -2V Example Part Number *(-1V sensor available in Europe only)

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