FOXBORO Pressure Transmitter 11GM-DS2

Product Item : 11GM-DS2
Product Brand : Foxboro
INQUIRY

Product Description
Other Models

The Foxboro® brand Models 11GM and 11GH Transmitters accurately measure gauge pressure and transmit a proportional pneumatic output signal to receivers which may be several hundred meters or yards away. Spans are fully adjustable up to a 10:1 ratio, providing wide rangeability in a single instrument. Fewer stand-by transmitters are required. The Models 11GM and 11GH Transmitters use the same topworks as other Foxboro Pneumatic d/p Cell ® Transmitters. Since accuracy is a function of calibrated span, precision is retained even with highly elevated- or suppressed-zero ranges.

FOXBORO Pressure Transmitter 11GM Series Parameters

Specification of Foxboro 11GM Pneumatic Transmitters

Accuracy:-

+0.25% of calibrated span

NACE:-

Compliance to NACE Standard MR-01-75

Ambient Temperature Limits:-

-40 and +120°C (-40 and +250°F)

Body Temperature Limits:-

-40 and +190°C (-40 and + 375°F).

Repeatability:-

Wetted Parts code S: 0.1% of calibrated span.

Wetted Parts code M: 0.2% of calibrated span.

Material:-

Cover: High-impact, glass-filled polycarbonate.

Body Bolts: Alloy steel per ASTM A193 Grade B7.

Span Limits:-

0.07 and 0.56 MPa or 10 and 80 psi

0.14 and 1.4 MPa or 20 and 200 psi

0.3 and 2.8 MPa or 40 and 400 psi

0.7 and 7 MPa or 100 and 1000 psi

1.4 and 14 MPa or 200 and 2000 psi

Process Connectors (b):-

1/4 NPT

1/2 NPT

R1/4 (metric)

R1/2 (metric)

Machined for 9/16-18 Aminco fitting (b)

Air Connections:-

The supply and output connections are tapped for 1/ 4 NPT

Optional Suffix

Zero Elevation

Zero Suppression

FOXBORO Pressure Transmitter 11GM Series Introduction

The measured pressure is applied to the bellows diaphragm capsule. The force on the capsule is transferred to the lower end of the force bar by bending. The metal diaphragm seal acts as both the fulcrum of the force rod and the seal of the pressure chamber. The force is transmitted through the flexure to the range rod, which rotates on the range wheel.

Any movement of the range rod causes a small change in the gap between the baffle and the nozzle. This causes the output pressure from the relay to the feedback bellows to change until the force on the feedback bellows balances the force on the bellows diaphragm box.

The output pressure established by this force balance is the transmitted signal and is proportional to the pressure applied to the bellows diaphragm box. This signal is transmitted to a pneumatic receiver for recording, indication and/or control.