Operating Instructions for all versions of 515/8510 and 2536/8512
Simple to install with time-honored reliable performance, Signet 515 and 2536 Rotor-X
Paddlewheel Flow Sensors are highly repeatable, rugged sensors that offer exceptional
value with little or no maintenance.
Signet 515 and 2536 sensors measure liquid fl ow rates in full pipes and can be used in
low pressure systems.
• The many material choices including PP, PVDF, and PVC (2536 only) make this
model highly versatile and chemically compatible with many liquid process solutions.
• Sensors can be installed in DN15 to DN900 (½ to 36 in.) using Signet's
comprehensive line of custom fi ttings, except the PVC 2536 version which can be
installed in DN15 to DN100 (½ to 4 in) pipes using Signet's comprehensive line of
custom fi ttings as well.
• These custom fi ttings, which include tees, saddles, and weldolets, seat the sensor to
the proper insertion depth into the process fl ow.
• The sensors are also offered in confi gurations for wet-tap installation requirements
except 2536 PVC version.
515/8510 Advantages:
• Flow rate range 0.3 to 6 m/s (1 to 20 ft/s)
• Installs into pipe sizes DN15 to DN900 (½ to 36 in.)
• Wide Turndown Ratio of 20:1
• Sinusoidal frequency output capable of driving a self-powered fl owmeter (Model 5090)
• Self-powered
• Highly repeatable output
• Chemically resistant materials
• Easy to replace rotor
• English
• Deutsch
• Français
• Español
2536/8512 Advantages:
• Flow rate range 0.1 to 6 m/s (0.3 to 20 ft/s)
• Installs into pipe sizes DN15 to DN900 (½ to 36 in.)
• The 2536 PVC version installs into pipe sizes DN15 to DN100 (½ to 4 in) for
concentrated Sodium Hypochlorite 12.5% applications
Refer to your local Georg Fischer Sales offi ce for the most
current warranty statement.
All warranty and non-warranty repairs being returned must
include a fully completed Service Form and goods must be
returned to your local GF Sales offi ce or distributor.
Product returned without a Service Form may not be
warranty replaced or repaired.
Signet products with limited shelf-life (e.g. pH, ORP, chlorine
electrodes, calibration solutions; e.g. pH buffers, turbidity
standards or other solutions) are warranted out of box but not
warranted against any damage, due to process or application
failures (e.g. high temperature,
mishandling (e.g. broken glass,
and/or extreme temperatures).
chemical poisoning, dry-out) or
damaged membrane, freezing
Product Registration
Thank you for purchasing the Signet line of Georg Fischer
measurement products.
If you would like to register your product(s), you can now
register online in one of the following ways:
• Visit our website www.gfsignet.com.
Under Service and Support click on
Product Registration Form
• If this is a pdf manual (digital copy),
click here
Georg Fischer Signet products are manufactured in a variety
of wetted materials to suit various liquids and chemicals.
All plastic materials including typical piping types (PVC, PVDF,
PP and PE) are more or less permeable to contained media,
such as water or volatile substances, including some acids.
This effect is not related to porosity, but purely a matter of gas
diffusion through the plastic.
If the plastic material is compatible with the medium according
to the application guidelines, the permeation will not damage
the plastic itself. However, if the plastic encloses other
sensitive components, as is the case with GF Signet plastic
paddlewheel sensors, these may be affected or damaged by
the media diffusing through the plastic body and rotor.
Failures of PVDF paddlewheel sensors when used in hot nitric
acid applications have been reported. PVDF is known to allow
for substantial permeation of nitric acid constituents without
being damaged itself. No clear guideline can be given here,
since the damaging effect to the sensor is highly dependent
on temperature, pressure and concentration.
Utilizing sensors in applications with aggressive substances is
possible. On special request GF Signet can provide sensors
with a different internal resin encapsulation (potting) that will
delay the damaging effect of acids to the sensors.
For all Special Product inquiries or to place an order, please
email signet-specialproduct@georgfi scher.com.
Safety Information
1. Depressurize and vent system prior to installation or removal.
2. Confi rm chemical compatibility before use.
3. DO NOT exceed maximum temperature or pressure specs.
4. ALWAYS wear safety goggles or faceshield during
installation and/or service.
5. DO NOT alter product construction.
Below are Safety Instructions from the pipe fi ttings
instruction sheet:
6. Do not use this product for any purpose other than for
which it was designed.
7. Use with liquids only.
Warning / Caution / Danger
Indicates a potential hazard. Failure to follow all
warnings may lead to equipment damage, injury,
or death
Personal Protective Equipment (PPE)
Always utilize the most appropriate PPE during
installation and service of Signet products.
Pressurized System Warning
Sensor may be under pressure, take caution to
vent system prior to installation or removal.
Failure to do so may result in equipment damage
and/or serious injury.
Hand Tighten Only
Overtightening may permanently damage product
threads and lead to failure of the retaining nut.
Do Not Use Tools
Use of tool(s) may damage product beyond repair
and potentially void product warranty.
Note / Technical Notes
Highlights additional information or detailed
procedure.
WARNING!
Paddlewheel Retaining Nuts:
Red (515), Blue (2536), and Gray (2536)
The retaining nuts of paddlewheel sensors are not designed
for prolonged contact with aggressive substances. Strong
acids, caustic substances and solvents or their vapor may
lead to failure of the retaining nut, ejection of the sensor and
loss of the process fl uid with possibly serious consequences,
such as damage to equipment and serious personal injury.
Retaining nuts that may have been in contact with such
substances, e.g. due to leakage or spilling, must be replaced.
Paddlewheel Maintenance:
Paddlewheel fl ow sensors are subject to wear and may
require maintenance and replacement of mechanical parts
(rotors, pin, O-rings, bearings, retainers, etc.). The frequency
of recommended maintenance will vary based upon
application specifi cations, characteristics of the measured fl uid, and installation details. These can include, but are not
limited to: process fl owrate, occurrence of water hammer, fl uid
corrosiveness and abrasiveness, sensor installation relevant
to other equipment.
GF Signet offers individual replacement parts and rotor
replacement kits, which include replacement instructions,
allowing customers to perform fi eld maintenance and reduce
application down-time. Please refer to the Paddlewheel
Replacement section (page 5) or contact your local GF Sales
Representative with any questions.
515, 2536, 8510, 8512, 2537 Only:
To support our customers, the GF Signet Repair Department
offers services to recertify the plastic paddlewheel products to
factory specifi cation. Contact your distributor or visit
Ordering Information (515/8510) ........................................... 7
Ordering Information (2536/8512) ......................................... 8
1-1/4" NPSM
threaded cap
26.7 mm
(1.05 in.)
Pipe Range:
1/2 in. to 4 in. -X0 = 104 mm (4.1 in.)
5 in. to 8 in. -X1 = 137 mm (5.4 in)
10 in. and up -X2 = 213 mm (8.4 in.)
1/2 in. to 4 in. -X3 = 297 mm (11.7 in.)
5 in. to 8 in. -X4 = 332 mm (13.1 in.)
10 in. and up -X5 = 408 mm (16.1 in.)
515/2536 Sensor
Standard
7.6 m (25 ft)
cable
included
-X (0 thru 5)
Wet-tap
Lengths
8510-XX/8512-XX Integral Sensor
shown with Transmitter and
Integral Adapter Kit (sold separately)
102 mm
(4.0 in.)
-X0 or
-X1
-X0 = 152 mm (6.0 in.)
-X1 = 185 mm (7.3 in.)
Signet 515/2536 Rotor-X Flow Sensors
3
Specifi cations
General
Flow Rate Range:
515 .................................... 0.3 to 6 m/s (1 to 20 ft/s)
2536 .................................. 0.1 to 6 m/s (0.3 to 20 ft/s)
Pipe Size Range ...................
DN15 to DN900 (½ in. to 36 in.)
PVC......................................DN15 to DN100 (½ in. to 4 in)
Cable Length ........................ 7.6 m (25 ft) standard
515 .................................... 60 m (200 ft) maximum
2536 .................................. 305 m (1000 ft) maximum
Cable type ............................ 2-conductor twisted pair w/
shield (22 AWG)
Minimum Reynolds Number
..
4500
Materials:
Cap Material ......................... Glass Filled Polypropylene
515: Red
2536: Blue
2536 (PVC): Gray
Wetted Materials:
Sensor Body ......................... Glass Filled Polypropylene
(black) PVDF, or (gray) PVC
O-Rings ................................ FPM (Std), EPR (EPDM) or
FFPM optional
Pin ........................................ Titanium, Hastelloy-C or PVDF;
optional Ceramic,
Tantalum, or Stainless Steel
Rotor ..................................... Black PVDF or Natural PVDF;
optional ETFE with or without
carbon fi ber reinforced PTFE
sleeve for rotor pin
Shipping Weight:
-X0 .................................... 0.454 kg (1 lb)
-X1 .................................... 0.476 kg (1.04 lbs)
-X2 .................................... 0.680 kg (1.50 lbs)
-X3 .................................... 0.794 kg (1.75 lbs)
-X4 .................................... 0.850 kg (1.87 lbs)
-X5 .................................... 1.0 kg (2.20 lbs)
3519 .................................. 1.3 kg (2.86 lbs)
Performance
Linearity ................................ ±1% of maximum range
@ 25 °C (77 °F)
Repeatability ......................... ±0.5% maximum range
@ 25 °C (77 °F)
Electrical
515 Sensor
Frequency............................. 19.7 Hz per m/s nominal
(6 Hz per ft/s)
Amplitude.............................. 3.3 V p/p per m/s nominal
(1V p/p per ft/s)
Source Impedance ............... 8 kΩ
2536 Sensor
Frequency............................. 49 Hz per m/s nominal
(15 Hz per ft/s nominal)
Supply Voltage......................
Supply Current...................... <1.5 mA @ 3.3 to 6 VDC
Output Type .......................... Open collector, sinking
Output Current ...................... 10 mA maximum
5 to 24 VDC ±10% regulated
<20 mA @ 6 to 24 VDC
Environmental Requirements
Pressure/Temperature Ratings
Standard and Integral Sensors:
Polypropylene Body:
• 515: 1.7 bar (25 psi) max @ 90 °C (194 °F)
12.5 bar (180 psi) max @ 20 °C (68 °F)
• 2536: 1.7 bar (25 psi) max @ 85 °C (185 °F)
12.5 bar (180 psi) max @ 20 °C (68 °F)
Operating Temperature ......... -18 °C to 66 °C (0 °F to 150 °F)
PVDF Body :
• 515: 1.7 bar (25 psi) max @ 100°C (212 °F)
14 bar (200 psi) max @ 20 °C (68 °F)
• 2536: 1.7 bar (25 psi) max @ 85 °C (185 °F)
14 bar (200 psi) max @ 20 °C (68 °F)
Operating Temperature ......... -18 °C to 100 °C (0 °F to 212 °F)
PVC Body:
• 2536: 6.9 bar (100 psi) max @
14 bar (200 psi) max @ 20 °C (68 °F)
Operating Temperature ......... 0 °C to 50 °C (32 °F to 122°F)
Polypropylene Wet-Tap Sensor Body:
• 7 bar (100 psi) @ 20 °C (68 °F) max
• Max Removal Rating.........
Operating Temperature ......... -18 °C to 66 °C (0 °F to 150 °F)
515 (8510) Sensor
(bar)(psi)
14.5
210
13.8
200
13.1
190
12.4
180
11.7
170
11.0
160
10.3
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
°F°C-4 3268 104 140 176 212
PVDF
Polypropylene
9.7
9.0
8.3
7.6
6.9
6.2
5.5
4.8
4.1
3.4
2.8
2.1
1.4
.7
0
-20 020 40 60 80 100
60 °C (140 °F)
1.7 bar @ 22 °C (25 psi @ 72 °F)
2536 (8512) Sensor
(bar)(psi)
14.5
210
13.8
200
13.1
190
12.4
180
11.7
170
11.0
160
10.3
150
9.7
140
9.0
130
8.3
120
7.6
110
6.9
100
6.2
90
5.5
80
4.8
70
4.1
60
3.4
50
2.8
40
2.1
30
1.4
20
10
°F°C-4 32 68 104 140 176 212
Polypropylene
PVDF
PVC
.7
0
-20 020 40 60 80 100
Standards and Approvals
• RoHS Compliant
China RoHS (Go to www.gfsignet.com for details)
• Manufactured under ISO 9001 for Quality,
ISO 14001 for Environmental Management and
OHSAS 18001 for Occupational Health and Safety.
P51530
• NSF (P51530-PX versions only)
• Lloyd's Register Type Approval
2536
• NSF (3-2536-PX versions only)
• CE
Declaration of Conformity according to FCC Part 15
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2)
This device must accept any interference received,
including interference that may cause undesired operation.
4
Signet 515/2536 Rotor-X Flow Sensors
.
D
Location of Fitting
o
e
To ensure the fl uid velocity profi le is fully
developed, without distortion from piping system
components, please adhere to the recommended
straight run geometry.
2 x 90° Elbow
25x I.D.5x I.D.
Reducer
15x I.D.5x I.D.
2 x 90° Elbow
3 dimensions
90° Elbow
40x I.D.5x I.D.
Sensor Mounting Position
Horizontal pipe Runs
To minimize adverse effects of air pockets, sediment, or excessive rotor wear (Paddlewheels), avoid
mounting the fl ow sensor at the top of the pipe (0º), bottom of pipe (180º), or the sides (90º from
vertical.)
Vertical Pipe Runs
Mount fl ow sensors in any direction. To ensure pipe is fl owing full, with some back pressure, it’s highly
recommended the fl uid fl ow is upward.
Gravity and Discharge Lines
It’s recommended to install a trap to ensure pipe is full during fl ow conditions, and to minimize
air pockets.
Standard Sensor Installation
• Lubricate O-rings with a non-petroleum based, viscous lubricant (grease)
compatible with the system.
• Using an alternating/twisting motion, lower the sensor into the fi tting, making sure the
installation arrows on the black cap are pointing in the direction of fl ow, see Figure A.
• Engage one thread of the sensor cap then turn the sensor until the alignment tab is seated in
the fi tting notch.
Hand tighten the sensor cap.
DO NOT use any tools on the sensor cap or
the cap threads and/or fi tting fl ange threads
will be damaged, see Figure B.
black conduit
cap
PROCESS PIPE
(TOP VIEW)
sensor bale
direction of flow
20x I.D.5x I.
Pump/Valve
50x I.D.5x I.D
black
conduit
cap
notch
sensor
cap
180°
0°
90°90°
sens
bal
tab
Figure A
Sensor Wiring
515 Sensor Connections to
Signet Instruments
Technical Notes
• Use 2-conductor shielded cable for cable extensions.
• Cable shield must be maintained through cable splice.
• Refer to your instrument manual for specifi c wiring
details.
Black
Shield
Red
DC sensor power supplied from Signet instrument.
10 K Pull-up resistor may be required for non-Signet brand instrument.
10 K
+
-
Gnd.
Input
3.3 to 24
VDC
Other
instrument
Other Brands
2536 Sensor Connections to
Signet Instruments
Rotor Replacement Procedure
• To remove the rotor, insert a small screwdriver between the rotor and the ear of the sensor.
• Twist the screwdriver blade to fl ex the ear outward enough to remove one end of the rotor and pin.
• DO NOT fl ex the ear any more than necessary! If it breaks, the sensor cannot be repaired.
• Install the new rotor by inserting one tip of the pin into the hole,
then fl ex the opposite ear back enough to slip rotor into place.
Figure B
Black
Frequency (-)
Red
Frequency (+)
Shield
Ground
Black
5 VDC
Red
Frequency in
Shield
Ground
Signet 515/2536 Rotor-X Flow Sensors
5
K-Factors
A K-Factor is the number of pulses a sensor will generate for each engineering unit of fl uid that passes the sensor. K-Factors for water
are listed below in U.S. gallons and liters. For example, in a 1-inch PVC pipe, the 515 paddlewheel generates 172.07 pulses per gallon
of water passing the rotor. K-Factors are listed for pipes up to 12 inches. For pipes over 12 inches, consult your Signet distributor.
PIPE
SIZE
FITTING
(IN.)
SCH 80 PVC TEES FOR SCH 80 PVC PIPE
1/2MPV8T005137.42520.12271.371027.1
3/4MPV8T00778.61297.52154.08583.19
1 MPV8T01045.46172.0788.65335.53
1-1/4 MPV8T01224.1991.5447.24178.79
1-1/2MPV8T01516.4462.2232.08121.42
2 MPV8T0209.6036.3218.8771.44
SCH 80 PVC TEES FOR SCH 80 PVC PIPE
2-1/2 PV8T0255.768321.83311.35942.994
3PV8T0303.577513.5417.041426.652
4PV8T0402.01477.62583.964515.006
SCH 80 CPVC TEES FOR SCH 80 CPVC PIPE
1/2 MCPV8T005 137.42520.12271.371027.1
3/4 MCPV8T007 78.61297.52154.08583.19
1 MCPV8T010 45.46172.0788.65335.53
1-1/4 MCPV8T012 24.1991.5447.24178.79
1-1/2 MCPV8T015 16.4462.2232.08121.42
2MCPV8T020 9.6036.3218.8771.44
SCH 80 PVC SADDLES FOR SCH 80 PVC PIPE
2 PV8S0208.581232.48017.63366.739
2-1/2 PV8S0255.768321.83311.35942.994
3 PV8S0303.577513.5417.041426.652
4 PV8S0402.01477.62583.964515.006
6 PV8S0601.09974.16232.19948.3246
8 PV8S0800.62632.37051.32535.0164
10 PV8S1000.40421.53000.8083.0600
12 PV8S1200.28011.06000.5712.1600
SCH 80 PVC SADDLE ON SCH 40 PVC PIPE
2 PV8S0207.225927.35014.45254.700
2-1/2 PV8S0254.986618.8749.817537.159
3 PV8S0303.338912.6386.260823.697
4 PV8S0401.77766.72823.555213.456
6 PV8S0600.98543.72971.97087.4594
8 PV8S0800.56882.15271.19664.5292
10 PV8S1000.35671.35000.7402.8000
12 PV8S1200.25360.96000.5231.9800
515/8510-XX2536/8512-XX
LITERS
U.S.
GAL
LITERS
U.S.
GAL
PIPE
SIZE
(IN.)
CARBON STEEL TEES ON SCH 40 PIPE
1/2CS4T005 97.808 370.20 199.74 756.00
3/4 CS4T007 56.027212.06 115.90 438.69
1 CS4T010 37.289141.14 75.768 286.78
1-1/4CS4T012 16.02560.655 32.026 121.22
1-1/2CS4T015 11.98245.350 24.079 91.139
2 CS4T020 7.071726.767 14.391 54.468
STAINLESS STEEL TEES ON SCH 40 PIPE
1/2CR4T005 94.838358.96 193.98 734.20
3/4CR4T007 53.530202.61 108.88 412.10
1 CR4T010 33.590127.14 66.764 252.70
1-1/4CR4T012 16.357 61.910 33.849 128.12
1-1/2CR4T015 10.676 40.410 20.428 77.320
2 CR4T020 5.8917 22.300 12.095 45.780
GALVANIZED IRON TEES ON SCH 40 PIPE
1 IR4T010 27.619104.54 56.277 213.01
1-1/4IR4T012 16.639 62.979 33.751 127.75
1 1/2 IR4T015 12.335 46.688 24.941 94.401
2 IR4T020 7.783229.459 15.699 59.420
BRONZE TEES ON SCH 40 PIPE
1 BR4T010 27.619104.54 56.277 213.01
1-1/4BR4T012 16.63962.979 33.751 127.75
1-1/2BR4T015 12.33546.688 24.941 94.401
2 BR4T020 7.783229.459 15.699 59.420
COPPER TEE FITTINGS ON COPPER PIPE SCH K
1/2CUKT005 117.10 443.21 242.50 917.84
3/4CUKT007 56.052 212.16 113.15 428.27
1CUKT010 33.600127.18 67.749 256.43
1-1/4CUKT012 23.30788.218 46.615 176.44
1-1/2CUKT015 15.04956.962 30.565 115.69
2CUKT020 7.759529.370 16.746 63.385
COPPER TEE FITTINGS ON COPPER PIPE SCH L
1/2 CUKT005 109.49414.41 226.74 858.22
3/4CUKT007 50.485 191.09 101.91 385.74
1CUKT010 31.662119.84 63.841 241.64
1-1/4CUKT012 22.57685.451 45.152 170.90
1-1/2CUKT015 14.57355.160 29.598 112.03
2CUKT020 7.557528.605 16.310 61.74
H-Dimensions
The plastic sensor insert in the Weldolet
fi tting MUST be removed during the welding
process. When reinstalled, it is important
that the insert be threaded to the proper
height ("H" dimension).