Emerson Rosemount 1199 Technical Note

Technical Note

Coplanar Connections

In-line Connections

00840-0700-4016, Rev AA
February 2009

Rosemount 1199

1199 Direct Mount Connection Guidelines

INTRODUCTION

In this document, you will find direct mount guidelines
for the Rosemount 1199 Diaphragm Seal System.
Direct mount remote seal systems provide a compact
way of directly connecting a pressure transmitter to
vessel fittings. This note discusses direct mount
configurations, direct mount operating limits, and
installation guidelines.

DIRECT MOUNT CONFIGURATIONS

Direct mount configurations can be ordered as an
integrated level transmitter (i.e: 3051S2L) or as an
1199 seal system. The 1199 direct mount
connections are available to attach to Coplanar
In-line sensor modules and almost every seal type.
There are three direct mount extension lengths for
Coplanar configurations and two extension lengths
for In-line configurations with longer extension
lengths used to separate the transmitter from higher
process temperatures. The different configurations
and associated model codes are listed below.

™

and

Direct Mount

Extension “X”

0 in (0 mm) 93 94 97 96 1 in (25 mm) 95

2 in (50 mm) B3 B4 B7 B6

4 in (100 mm) D3 D4 D7 D6

www.rosemount.com

Coplanar Connections In-line Connections

Direct Mount

Welded Repairable All-Welded Vacuum

1 Seal 2 Seals 1 Seal 2 Seals

Extension “X”

5.72 (145 mm) D5

Option Codes

Rosemount 1199

DIRECT MOUNT OPERATING LIMITS

Temperature: A direct mount seal system protects
the transmitter from process temperatures while
maintaining the seal system fill fluid within its
operating temperature limits. Pressure transmitter
ambient limits are based on its electronics (typically

-40° to 185°F/85°C) and process temperature limits
are based on the module configuration (typically -40°
to 250°F/121°C for Coplanar flanges or in-line
connections).

The seal system fill fluid is selected to operate within
the process and ambient temperat ur e lim i ts for an
application. For direct mount systems, heat
transferred from the process keeps the fill fluid &
direct mount connection warm. This enables the fill
fluid to continue to respond properly even at cold
ambient conditions. An example is the Thermal
Optimizer In-line code D5 designed for high process
temperature applications. The Thermal Optimizer
separates the In-line sensor module from the high
process temperature while insulating the high
temperature fill fluid to enable it to operate properly
even at the coldest ambient conditions. In capillary
seal systems, the process heat is dissipated and
most of the fill fluid is exposed to the ambient
temperature. At cold ambient temperatures, high
temperature fluids like DC704 or DC705 become too
viscous to provide acceptable time response.

The tables below highlight temperature limits for the
variety of 1199 fill fluids in direct mount or capillary
seal system configurations.

Coplanar Transmitter Seal System Fill Fluid Limits

Direct Mount

Fill Fluid

DC200 -45 °C/

DC704 -40 °C/F 240 °C/

DC705 -40 °C/F 240 °C/

Inert
(Halocarbon)

Glycerine
and Water

Propylene
Glycol and
Water

Neobee
M-20

Syltherm XLT -75 °C/

Minimum
Temperature

-49 °F

-45 °C/

-49 °F

-15 °C/
5 °F

-15 °C/
5 °F

-15 °C/
5 °F

-102 °F

Maximum Temperature
LT/0 ext. 2-in./

205 °C/
401 °F

160 °C/
320 °F

95 °C/
203 °F

95 °C/
203 °F

205 °C/
401 °F

145 °C/
293 °F

50 mm ext.

464 °F

464 °F

225 °C/
437 °F

4-in./
100 mm ext.

260 °C/
500 °F

260 °C/
500 °F

Technical Note

00840-0700-4016, Rev AA

February 2009

In-line Transmitter Seal System Fill Fluid Limits

Fill Fluid Min imum

DC200 -45 °C/-49 °F 205 °C/401 °F
DC704 -40 °C/F 315 °C/599 °F
DC705 -40 °C/F 350 °C/662 °F
Inert

(Halocarbon)
Glycerine and

Water
Propylene

Glycol and
Water

Neobee M-20 -15 °C/5 °F 205 °C/401 °F 225 °C/437 °F
Syltherm XLT -75 °C/-102 °F 145 °C/293 °F

Fill Fluid Minimum Temperature Maximum

DC200 -45 °C/-49 °F 205 °C/401 °F
DC704 0 °C/32 °F 315 °C/599 °F
DC705 20 °C/68 °F 350 °C/662 °F
Inert (Halocarbon) -45 °C/-49 °F 160 °C/320 °F
Glycerine and Water -15 °C/5 °F 95 °C/203 °F
Propylene Glycol and

Water
Neobee M-20 -15 °C/5 °F 225 °C/437 °F
Syltherm XLT -75 °C/-102 °F 145 °C/293 °F

Temperature

-45 °C/-49 °F 160 °C/320 °F

-15 °C/5 °F 95 °C/203 °F

-15 °C/5 °F 95 °C/203 °F

Capillary Seal System Fill Fluid Limits

-15 °C/5 °F 95 °C/203 °F

Pressure: The operating pressure limits for a direct
mount seal system depend on the process
connection and/or sensor URL for the maximum limit
and the sensor static pressure limit and remote seal
construction for the minimum limit. For example, the
maximum limit for a FFW seal with an ANSI class
150 SST flange would be 285 psig(19.6 bar). The
maximum limit for a gage Coplanar range 4 the URL
would be 300 psig(20.7 bar). The maximum limit
would be the lower of these values for a given seal
system. For minimum pressure, the sensor limit
depends on module and sensor type as shown
below.

Module Type Sensor Type Lower Pressure Limit

Coplanar Differential LRL or 0.5 psia (34.5 mbar abs)

Gage LRL or 0.5 psia (34.5 mbar abs)
Absolute 0 psia (0 bar)

In-line Gage -14.7 psig (-1.01 bar)

Absolute 0 psia (0 bar)

Maximum Temperature
1-in. (25 mm) 5.72-in. (145 mm)

Temperature

2