Installation

All electrical equipment must only be installed by a qualified electrician.

Understand and follow your local code and safety regulations for hazardous location wiring of intrin- sically safe circuits.

Dust and Foreign Matter

Avoid having dust or foreign matter enter the flow meter by taking the following precautions:

Thoroughly flush the fluid supply lines before install- ing the flow meter.

When installing fittings, make sure that no sealing tape overlaps into the inside of the pipe.

Install a 100 mesh fluid filter upstream of the flow meter.

Cable

Electronic Sensor Device

Flow Meter

Fluid Shutoff Valve

Fluid Line

on outlet side

 

FIG. 1: Typical Installation

Installation

Installing the Flow Meter

Flow volume can only be measured at the location where the flow meter is installed.

The Fluid Flow Meters are intrinsically safe for Class I; Division 1; Group D hazardous indoor (NEMA 1) locations when installed with an intrinsically safe power device and wiring.

Refer to ANSI standards ISA-RP12.6, NEC Article 504 and the Canadian Electrical Code Appendix F.

Do not use more than 200 ft. (61 m) of cable.

Refer to FIG. 1 to locate and install the flow meter, connectors, and fluid shutoff valves. Install a check valve to prevent backflow. The arrows on the flow meter and check valve show the direction of fluid flow.

The shutoff valves allow you to isolate the meter for service.

Refer to the Technical Data and Dimensions Drawings for dimension, inlet/outlet size, tempera- ture and other specifications.

Ground Sheath

Check Valve

Fluid Shutoff Valve

 

on outlet side

7379A

308778L

5

Page 5
Image 5
Graco G3000HR, G250HR, g250 important safety instructions Installation, Dust and Foreign Matter, Installing the Flow Meter