GF Signet 2551 Magmeter Flow Sensor - Display - Manual (Page 4)

4 2551 Magmeter
4. Overview of 2551 Display Magmeter
2551 Display Magmeters use a dual-sided electronics module and dual conduit ports. Unused ports must be sealed to protect the
electronics from water damage.
1. The lower set of conduit ports provide access to the wiring terminals for:
• Loop Power
• Flow Output Signal (current loop, Digital (S 3 L), frequency or Mirror Relay 1 output).
2. The upper set of conduit ports provide access to the wiring terminals for:
• Relay output wiring
• Auxiliary power for relay coils and display backlight
3. The sensor is marked with a directional arrow to indicate the direction identi¿ ed as forward À ow.
• An adhesive decal is also provided that can be af¿ xed to the pipe to indicate the direction of forward À ow.
• Flow in the opposite direction from the arrow will be identi¿ ed as reverse À ow on the display by a "-" symbol.
4. The terminals in the magmeter are designed to accomodate 16 to 22 AWG conductors.
5. The display includes two LEDs that light when Relay 1 or Relay 2 are activated.
• All three relays can be monitored by scrolling to the Relay Status display located in the View menu.
• If the Language option has not been made, new magmeters will always open with the Select Language display.
6. The part number, serial number and output type are identi¿ ed on the electronics module.
Language
English >
4 to 20 mA output
Digital (S
3 L) output
Frequency output
Mirror relay 1 output
Relay 1
Relay 2
NO1
NO2
NO3
NC1
NC2
NC3
C1
C2
C3
V+
V-
Relay 3
Aux Pwr
Relay output
Aux power
Signet Magmeter
RELAY 1 RELAY 2
ENTER
420 GPM
123456.78 >
4-20/freq out
s/n 60504201234
60504201234
p/n 3-2551-11
3-2551-11
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1.
The retaining nuts of Magmeters 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 À 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.
Chemical Compatibility Warning