Thermo Scientific Sarasota ID900 User manual

Sarasota ID900/FD900/PD900
Sarasota RTR900
Gas Density Meters & Instrument Retractor
User Guide
P/N HB-ID/FD900
Revision L
Part of Thermo Fisher Scientific

Sarasota ID900/FD900/PD900
Sarasota RTR900
Gas Density Meters & Instrument Retractor
User Guide
P/N HB-ID/FD900
Revision L

© 2018 Thermo Fisher Scientific Inc. All rights reserved.
“Ni-Span C” is a registered trademark of the Special Metals Corporation.
“HART” is a registered trademark of the HART Communication Foundation.
“Inconel” is a registered trademark of Special Metals Wiggin Ltd.
“Microsoft” and “Windows” are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries.
All other trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
Thermo Fisher Scientific (Thermo Fisher) makes every effort to ensure the accuracy and completeness of this
manual. However, we cannot be responsible for errors, omissions, or any loss of data as the result of errors or
omissions. Thermo Fisher reserves the right to make changes to the manual or improvements to the product at
any time without notice.
The material in the manual is proprietary and cannot be reproduced in any form without express written consent
from Thermo Fisher.

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Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters v
RevisionHistory
Revision Level Date Comments
0.0 08-1996 Initial release.
A 01-2007 Revised per ECO 5423.
B 09-2007 Revised per ECO 5979.
C 11-2008 Revised per ECO 6657.
D 05-2010 Revised per ECO 7393.
E 11-2010 Revised per ECO 7573.
F 06-2011 Revised per ECO 7733.
G 08-2011 Revised per ECO 7799.
H 04-2017 Change Temperature Range per ECO 9186
J 08-2017 Revised per ECO 9194
K
09-2017 Revised per ECO 9274
L
10-2021 Revised per ECO 10067

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Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters vii
Contents
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Important Safety Information............................................................xi
Control of Substances Hazardous to Health ...........................................xi
Electrical Safety......................................................................................xi
Product Overview .......................................................................... 1-1
Introduction........................................................................................ 1-1
Operation............................................................................................ 1-2
Installation..................................................................................... 2-1
Sarasota ID900.................................................................................... 2-1
Sarasota RTR900 ................................................................................ 2-4
Sarasota FD900................................................................................... 2-8
Sarasota PD900................................................................................. 2-11
Temperature Considerations .......................................................... 2-11
Pressure Considerations.................................................................. 2-12
Dirt Consideration......................................................................... 2-12
Pocket Location & Installation....................................................... 2-12
Meter Installation........................................................................... 2-13
Installing the Bypass System........................................................... 2-14
Electrical Considerations................................................................... 2-14
Hazardous Area Installation............................................................... 2-15
Marking ......................................................................................... 2-16
Electrical Data................................................................................ 2-17
Commissioning............................................................................... 3-1
Sarasota RTR900 ................................................................................ 3-1
Initial Operation .............................................................................. 3-1
Insertion........................................................................................... 3-2
Retraction ........................................................................................ 3-3
Sarasota PD900................................................................................... 3-6
Setting the Bypass Flow Rate............................................................ 3-7
Calibration ..................................................................................... 4-1
Air Checks........................................................................................... 4-1
Corrections ......................................................................................... 4-1
Liquid Checks..................................................................................... 4-2
Vacuum Point Cleaning ...................................................................... 4-2
Temperature Correction at Check Points ............................................ 4-3

viii User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
Thermo Fisher Scientific
Contents
Chapter 5 Maintenance...................................................................................5-1
General ............................................................................................... 5-1
RTR900 Maintenance Schedule.......................................................... 5-1
Gland Packing.................................................................................. 5-4
Cleaning.............................................................................................. 5-4
General ............................................................................................ 5-4
The Spool ........................................................................................ 5-5
Chapter 6 Troubleshooting & Service ..............................................................6-1
General Troubleshooting .................................................................... 6-1
Contact Information ........................................................................... 6-3
Appendix A Ordering Information ....................................................................................... A-1
Sarasota ID900 ...................................................................................A-1
Sarasota FD900...................................................................................A-4
Sarasota PD900...................................................................................A-6
Sarasota RTR900 ................................................................................A-8
Appendix B
Appendix C
Specifications ................................................................................................... B-1
Sarasota Gas Density Meters ...............................................................B-1
Sarasota RTR900 ................................................................................B-4
Drawings............................................................................................................ C-1
Appendix D Health&SafetyClearanceForm...................................................................D-1
Appendix E Toxic & Hazardous Substances Tables ....................................................... E-1

Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters xi
Important SafetyInformation
Control of
Substances
Hazardous to
Health
Electrical Safety
● Know the safety precautions and first aid instructions before you use a
hazardous substance.
● Read the label on the container in which the substance issupplied.
● Read the data sheet applicable to thesubstance.
● Obey the local orders andinstructions.
Warning Remove all power from the unit before making any connections.
Electrocution can result if power is present. ▲
Warning Ensure the power supply is isolated. Take suitable precautions to
prevent reinstatement of power while working on the system. ▲

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Chapter 1
Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters 1-1
Product Overview
Introduction The Thermo Scientific Sarasota range of gas density meters is designed for
the continuous, inline, high accuracy measurement of density or density
related variables within the oil and gas, petrochemical, and power
industries. From this measurement, output variables such as specific
gravity, calorific value, or molecular weight can be provided either by a
Thermo Scientific AutoPILOT PRO flow computer, a Sarasota CM515
density converter, or a Sarasota HME900 headmounted electronics.
Suitable third party flow computers or density converters may also be used.
The Sarasota ID900 direct insertion gas density meter is installed directly
into the pipeline or vessel, generally using its integral flanges or the Sarasota
RTR900 instrument retractor, which allows the meter to be removed from
a pressurized line without having to shut down the line or process, avoiding
downtime.
The Sarasota FD900 bypass density meter is normally installed on a bypass
sample line. Where the line size is 25 mm (1”) or less, it may be placed
directly inline. A choice of fittings and flange options is available to suit the
pipework configuration. Density and temperature measurements are
therefore at line or near line conditions.
The Sarasota PD900 pocket density meter offers many of the same design
features as the Sarasota ID900 but is mounted into a thermowell pocket
that is installed directly into the pipeline. Since the pocket is in the
pipeline, density and temperature measurements are at near process
conditions, and the use of an inlet filter prevents dirt or moisture from
entering the measuring chamber.
Two versions of the gas density meters are available. The F option provides
frequency output and 4-wire PT100 connections that may be used by a
remote density converter or flow computer. With the H option, an
onboard HARTcompliant density converter provides a linearized 4–20
mA output.

1-2 User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
Thermo Fisher Scientific
Product Overview
Operation
Operation Sensors in the sensor assembly are caused to vibrate at their natural
resistance. Gas flowing through the sensors causes changes in the vibration
frequency. The change in vibration frequency is proportional to the density
of the gas.
The instrument retractor accommodates the Sarasota ID900 density meter
with the vent valve mounted to mate with the system isolation valve. The
head of the vent valve interferes with lugs on the clamp ring, preventing
removal of the clamp ring while the bleed valve is shut. This safety feature
prevents removal of the top seal housing until seal housing pressure is
released. The retractor allows the Sarasota ID900 to be removed from the
system while leaving the seal housing still clamped to the system pipeline. It
is designed to be used with pipeline pressures up to 170 bar (2500 psi).

Chapter 2
Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters 2-1
Installation
Note Installation must be carried out in accordance with local site
requirements and regulations. ▲
Sarasota ID900 The Sarasota ID900 should be mounted vertically in the pipeline withthe
outlet port downstream. There are three mountingmethods:
● Welded flange version
● Male connector Swagelokfitting
● Sarasota RTR900 instrument retractor
Ensure that the flow direction arrow etched onto the Sarasota ID900 stems
points in the flow stream direction. Fit suitable flange gaskets and tighten
flange bolts evenly. See the figures below.

Installation
2-2 User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
Thermo Fisher Scientific
Sarasota ID900
Figure 2–1. Sarasota ID900 dimensional drawing

Installation
Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters 2-3
Sarasota ID900
Figure 2–2. Installation of flanged Sarasota ID900
Figure 2–3. Installation of Sarasota ID900 with Sarasota RTR900
Note If using the Sarasota RTR900 instrument retractor, be sure to review
the following section for mounting instructions. ▲

Installation
Sarasota RTR900
2-4 User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
Thermo Fisher Scientific
Sarasota RTR900 The Sarasota RTR900 instrument retractor should be mounted on a ball or
gate location valve and have sufficient clearance to allow the Sarasota
ID900 and retractor to pass clearly through when the valve is open.
The isolation valve must be mounted squarely on the nozzle attached to the
system pipeline or tank and be clear of internal obstructions.
You will need the following equipment to install the Sarasota RTR900:
● Allen key, 5 mm
● Wrench, open-ended 1-1/5-inch and 1-5/16-inch AF
● Wrench (2 off) to suit flangebolts
● C wrench for gland nut(supplied)
● Oil can containing good quality light machine oil (Shell Dexron II)
Fit the instrument retractor asfollows:
1. Remove the amplifier box from the densitymeter.
2. Using the Allen headed bolts, fit the handwheel to retractorshaft.
3. Lightly lubricate the O-ring at the top of the jackscrew.
4. Insert the density meter through the nut of the pipe fitting and pushall
the way up to the stem. Take care when passing theO-ring.
5. Ensure the density meter body fits snugly against the nut and that the
cannon plug at the end of the density meter stem projects beyond the
retractor handwheel.
6. Finger-tighten the nut at the end of the retractor stem. Using a wrench,
tighten the nut 1-1/4 turns further. Check the density meter is held
firmly.
7. Turn the knob on the vent valve fully counterclockwise to allow the
lugs on the clamp nut to clear the valve handle. Undo the clamp nut
and remove it from the remainder of the seal housing along with the
retractor stem and instrument. Take care not to loose the Inconel C
ring on top of the seal housing.

Thermo Fisher Scientific
User Guide for Sarasota ID900, FD900, & PD900 GasDensity Meters 2-5
Installation
Sarasota RTR900
Caution Handle the Inconel C ring with care. The C ring may be shipped
separately in a plastic bag attached to the wheel. ▲
8. Bolt the seal housing to the valve, ensuring it is aligned with thevalve.
Caution Misalignment can cause the density meter to be inserted at an
angle and contact the edge of the nozzle where it enters the pipeline. The
density meter may be trapped but should not be retrieved until the next
time the pipeline is completely shut down. ▲
9. Ensure that the Inconel C ring is not damaged and that the mating
surfaces are clean and free from dirt. Fit the C ring and screw down the
top of the seal housing and lead screwassembly.
10. Using the C wrench, tighten to clamp the ring to 330 Nm (250 lbf.ft).

2-6 User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
Thermo Fisher Scientific
Installation
Sarasota RTR900
Figure 2–4. Sarasota RTR900 dimensional drawing