Signet 8550  / Field or Panel Mount Transmitters

The SIGNET 8550 Flow Transmitter is an advanced solution that converts the signal from all  SIGNET flow sensors into a 4 to 20 mA signal for long distance transmission.  Configuration flexibility is maximized with two optional relays for process control, two packaging options for integral/pipe mount or panel installation, and scalability for virtually any flow range or engineering unit.   State-of-the-art electronic design ensures long-term reliability, signal stability, and simple user setup and operation.

These user friendly flowmeters provide a convenient way to display flow rate and totalization.  The LCD display has five different adjustment for easy viewing.  Flow displayed in gallon or most other engineering units - l/min, #/min, as example.  Optional relays can proved indication of low or high flow or pulse a metering pump for chemical injecting treatment. Optional dual input device is also available.

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Features

  • Field (yellow) or Panel (black) display
  • Permanent & resettable totalizers
  • Scaleable outputs
  • Relay options
  • Mounting versatility
  • Simulate function
  • 2 x 16 character dot matrix LCD
  • Chemical resistant enclosure and self-healing window
  • Large pushbuttons
  • Clearly marked terminal labels
  • 12 to 24 VDC powered

Application

  • Flow control and monitoring
  • Filtration or softener regeneration
  • Effluent totalization
  • Pump protection
  • Feed pump pulsing
  • Ratio control
  • Water distribution
  • Leak detection
General
Enclosure:
Rating: NEMA 4X/IP65 front
Case: PBT
Window: Polyurethane coated polycarbonate
Keypad: Sealed 4-key silicone rubber
Weight: Approx. 325g (12 oz.)
Display:
Alphanumeric 2 x 16 LCD
Update rate: 1 second
Contrast: User selected, 5 levels
Accuracy: 0.5 Hz

Environmental
Operating temperature: -10 to 70C (14 to 158F)
Storage temperature: -15 to 80C (5 to 176F)
Relative humidity: 0 to 95%, non-condensing

Standards and Approvals
CSA, CE, UL listed
Manufactured under ISO 9001

8550install1.jpg (3332 bytes) Panel mounted display with flow sensor - 8550

Mount the display in a local enclosure - 1/4 DIN

Power is supplied directly to the instrument or may be provided by the output loop power

8550install3.jpg (4309 bytes) Field mounted display with flow sensor - 8550

Mount the display directly on the sensor or on the pipe.   No enclosure is required.

Power is supplied directly to the instrument or may be provided by the output loop power

Installation

The transmitter is available in a panel mount or a field version. The field version is mounted to the sensor using the integral mount kit (3-8051) or you may select the universal mount kit (3-8050) to mount the transmitter on a surface near the sensor.

All panel mount transmitters (3-8550-XP) include a mounting bracket and gasket for a NEMA 4X watertight panel installation. Panel mount transmitters fit into a standard 1/4 DIN panel cutout.

The Integral Mount Kit (3-8051) can be ordered separately and includes a conduit base, locking ring, and integral adapter for mounting the transmitter and sensor directly in a pipe.

The Universal Mount Kit (3-8050) can be ordered separately and includes a conduit base, locking ring, and universal adapter for mounting the transmitter on a pipe, wall, or other stationary surface.

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Ordering Information and Instruction Sheets (in PDF file)

Mfr. Part No. Code PDF File Description
3-8550-1 159-000-047 8550-1 Flow transmitter Field mount
3-8550-1P 159-000-048 Flow transmitter Panel mount
3-8550-2 159-000-049 8550-2 Flow transmitter Field mount with relays
3-8550-2P 159-000-050 Flow transmitter Panel mount with relays
3-8550-3 159-000-051 8550-3 Flow transmitter Field mount with dual input/output
3-8550-3P 159-000-052 Flow transmitter Panel mount with dual input/output

Sensors

All signet flow sensors are compatible with 8550 or 8551 (except when using integral kit).

Mfr. Part No. use with  Description
3-8510-P0 8551 integral kit polypro/titanium 1/2" to 4"
3-8510-P1 8551 integral kit polypro/titanium 5" to 8"
3-8510-V0 8551 integral kit PVDF/Hastelloy 1/2" to 4"
3-8510-V1 8551 integral kit PVDF/PVDF 1/2" to 4"

Accessories

Mfr. Part No. Code Description
3-8050 159-000-184 Universal mounting kit
3-8050.395 159-000-186 Transmitter NEMA 4X cover
3-8051 159-000-187 Flow Integral kit MNPT NPT
3-8050.396 159-000-617 RC Filter kit (for relay use)

Dimensions and wiring of ProcessPro Units - Field & Panel

Engineering Specifications

The transmitter shall be manufactured under ISO 9001 certified processes.
The transmitter shall be field or panel mountable.
The transmitter shall have flow rate and dual totalization capability.
The display units shall be fully scaleable.
The device shall meet NEMA 4X and IP65 standards.
The operating voltage shall be 12 to 24 VDC.
The transmitter shall have a 4 to 20 mA output with an open collector output, 5 to 30 VDC or a 4 to 20 mA output with 2 relays, or dual 4 to 20 mA output with dual open collector with delta capability.
The transmitter shall have security code capability.
The transmitter shall have simulate capability.
The transmitter shall be +GF+SIGNET, Model 8550 Flow Transmitter.

This unit has replaced the Compac Series 8512 - information

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