GF Signet 2551 Operating Instructions Manual
Display magmeter
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User Manual
Signet 2551 Display Magmeter
*3-2551.090-1*
3-2551.090-1
Rev. M
• English
• Deutsch
• Français
• Español
• Italiano
• Português
04/15
Description
The 2551 Magmeter measures the fl ow rate in a full pipe by monitoring the voltage
produced when the (conductive) fl uid moves through a magnetic fi eld. Output
options include a traditional frequency signal, a serial data (Digital (S
and a 4 to 20 mA output.
The 2551 Magmeter is available in three sizes that will accommodate pipes from
½ inch through 36 inch diameters.
Select from three different material combinations to match the Magmeter to the
application requirements.
Table of Contents
Warranty Information .............................................................................. 2
Product Registration ............................................................................... 2
Safety Information .................................................................................. 2
Chemical Compatibility ........................................................................... 2
Dimensions ............................................................................................. 2
Specifi cations ......................................................................................... 3
Installation .............................................................................................. 4
Pipe Fittings ........................................................................................ 4
Selecting a Location............................................................................ 4
Overview Magmeter Display................................................................... 5
Wiring ..................................................................................................... 5
Mirror Relay 1 Output.......................................................................... 5
Frequency Output ............................................................................... 5
4 to 20 mA Output ............................................................................... 6
Wiring to other Manufacturer's Instruments ........................................ 6
Wiring to Signet Flow Instruments ...................................................... 6
Wiring Relays ...................................................................................... 7
Application Notes: Relay Wiring ...................................................... 7
Navigating the Menus ............................................................................. 8
Keypad Functions ............................................................................... 8
Security Code ..................................................................................... 8
View Menu .............................................................................................. 9
Resetting the Resettable Totalizer ...................................................... 9
Setup Menu .......................................................................................... 10
Averaging and Sensitivity ...................................................................11
Bi-Directional Flow ............................................................................ 12
Calibration Data: K-Factors.......................................................... 12-13
Calibration Menu ............................................................................... 14
Volume Method of Calibration ........................................................... 14
Rate Method of Calibration ............................................................... 14
Relay Menus......................................................................................... 15
Pulse Relay Mode ............................................................................. 15
Total Relay Mode .............................................................................. 15
High, Low, or Window Relay Modes ................................................. 16
Test Menu ............................................................................................. 17
Options Menu ....................................................................................... 17
Output Modes ................................................................................... 17
Grounding ............................................................................................. 18
Maintenance ......................................................................................... 18
Troubleshooting .................................................................................... 19
Ordering Information............................................................................. 20
Operating Instructions
English
3
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Table of Contents
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Summary of Contents for GF Signet 2551
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Page 1: Table Of Contents
English Signet 2551 Display Magmeter *3-2551.090-1* 3-2551.090-1 Rev. M 04/15 Operating Instructions Description The 2551 Magmeter measures the fl ow rate in a full pipe by monitoring the voltage produced when the (conductive) fl uid moves through a magnetic fi eld. Output... -
Page 2: Warranty Information
Service Form and goods must be the process fl uid with possibly serious consequences, such as returned to your local GF Sales offi ce or distributor. damage to equipment and serious personal injury. Retaining Product returned without a Service Form may not be nuts that may have been in contact with such substances e.g. -
Page 3: Specifi Cations
Relay Source ....Flow Rate, Resettable Totalizer Error Condition ....Selectable; Fail Open or Fail Closed Display Characters .....2 x 16 Contrast ......User-set in four levels Backlighting ....Requires external 9-24 VDC, 0.4 mA max. (only on relay versions) Signet 2551 Display Magmeter... -
Page 4: Installation
In a gravity-fl ow system, the tank must be designed so the level does not drop below the outlet. This causes the pipe to draw air in from the tank. If air bubbles pass across the Magmeter electrodes, the output will become erratic. Signet 2551 Display Magmeter... -
Page 5: Overview Magmeter Display
(5 to 26.4 VDC) 2551 Magmeter ********************** Digital (S L) Out (4.5 to 6.5 VDC) 4 to 20 mA output Digital (S L) output Frequency output s/n 60504201234 60504201234 Mirror relay 1 output p/n 3-2551-11 3-2551-11 Signet 2551 Display Magmeter... -
Page 6: To 20 Ma Output
+5VDC (Black) Flow Instrument S 3 L S L (Red) Input Sensr Gnd Ground Ground GND (White/Shield) (SHIELD) Sensr IN Ground Frequency Input (RED) Frequency Out 5-24 VDC Out 5-24 VDC 10 KΩ Pull-up Resistor 2551 Magmeter Signet 2551 Display Magmeter... -
Page 7: Wiring Relays
120-240 VAC Mixers Examples of inductive loads include motors, solenoids, and relays. High voltage transients from these types of loads can cause arcing across mechanical switching contacts or can cause damage to solid-state contacts. Signet 2551 Display Magmeter... -
Page 8: Navigating The Menus
In menus with only two options (Yes or No, On or Off) toggles between selections. Securiy Code Saves a new selection in any menu. From Normal Operation display, jumps to fi rst selection ENTER in Menu directory (when held for three seconds) Signet 2551 Display Magmeter... -
Page 9: View Menu
Press any arrow key to toggle the fl ashing selection Reset Total from NO to YES. ENTER Press the ENTER key. The totalizer will reset to all 123456.78 GPM zeroes and the display will immediately return to the 000000.00 > normal operating display. Signet 2551 Display Magmeter... -
Page 10: Setup Menu
Sensitivity: Set a percentage of maximum range by which the fl ow must change to override the Sensitivity averaging feature and "jump" quickly to the new fl ow rate. See detailed explanation on page 11. 100% > Signet 2551 Display Magmeter... -
Page 11: Averaging And Sensitivity
If used as part of a tuned closed loop control system, such a change may be undesirable. Time 10 s 20 s 30 s 40 s 50 s 60 s 70 s Signet 2551 Display Magmeter... -
Page 12: Bi-Directional Flow
5.71 1.51 SCH 80 PVC CLAMP-ON SADDLES FOR SCH 40 PIPE PV8S020 180.01 47.56 2½ PV8S025 123.72 32.69 PV8S030 75.81 20.03 PV8S040 41.87 11.06 PV8S060 19.71 5.21 PV8S080 11.73 3.10 PV8S100 7.43 1.96 PV8S120 5.23 1.38 Signet 2551 Display Magmeter... - Page 13 SCH 80 IRON SADDLE ON SCH 40 PIPE IR8S020 185.35 48.97 2½ IR8S025 127.47 33.68 IR8S030 76.62 20.24 IR8S040 40.23 10.63 IR8S050 27.32 7.22 IR8S060 19.71 5.21 IR8S080 11.61 3.07 IR8S100 7.36 1.94 IR8S120 5.18 1.37 Signet 2551 Display Magmeter...
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Page 14: Calibration Menu
The accuracy of this calibration method is largely dependent on the accuracy of the reference meter and the proximity of the reference to the Signet 2551 Magmeter. The fl ow rate shown is based on the existing calibration of the 2551. Use the keypad to modify Set New Flowrate the fl... -
Page 15: Relay Menus
10000, the relay activates and lights a message indicator to remind the service representative to replace the fi lter. When the totalizer is reset, the relay will be deactivated and the process begins anew. Relay 1 Mode Relay 1 Set High Total > 000000 > Signet 2551 Display Magmeter... -
Page 16: High, Low, Or Window Relay Modes
Relay 1 Mode 00.000 GPM > Window > Relay 1 Set High 00.000 GPM > Relay 1 Hys 00.000 GPM > The menu repeats for Relay 2 and Relay 3. Relay 1 Delay 0.1 secs > Signet 2551 Display Magmeter... -
Page 17: Test Menu
L) Digital output mode switches the 2551 to the Signet serial data output called (S L) (Signet Serial Sensor Link). In this mode the 2551 can be added to the serial bus of the Signet 8900 Multi-Parameter Controller or 9900 Transmitter. Signet 2551 Display Magmeter... -
Page 18: Grounding
• Use a cotton swab and mild detergent to remove deposits on the metal electrodes. Environmental Recommendations: • When used properly, this product presents no inherent danger to the environment. • Please follow local ordinance when disposing of this or any product with electronic components. Signet 2551 Display Magmeter... -
Page 19: Troubleshooting
L) output will be locked to 0 if electrodes are not wet. • 4 to 20 mA will be locked to 4 mA if electrodes are not wet. • Blue and Red LED indicators on the magmeter circuit will blink alternately if the electrodes are not wet. Signet 2551 Display Magmeter... -
Page 20: Ordering Information
Ordering Information Frequency or Digitial (S L) output Mfr. Part No. Code Description 3-2551-P0-21 159 001 267 DN15 to DN100 (½ in. to 4 in.) Polypropylene and 316L SS. Two SPDT relays, one solid state relay 3-2551-T0-21 159 001 436 DN15 to DN100 (½...
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