FCS Sentinel 2 Manual de usuario

User Guide: Sentinel 2

(2-point Pressure control system)

Warning: This manual contains important safety and operating information.

Please read, understand, and follow the instructions in the manual.

MAN-163-0004-B September 2022


TABLE OF CONTENTS 
1System Documentation and Support of Product ...........................................................5 
1 Documentation and Technical support ...................................................................5 
2 Safety ..........................................................................................................................5 
2Overview ............................................................................................................................6 
1 Introduction................................................................................................................6 
2 Server integration option: DataGate and PressView Websites..............................9 
3 Communicating with Sentinel 2..............................................................................10 
3.1 Download of IDT (PC version)..........................................................................10 
3.2 Connecting the Comms Cable .........................................................................10 
3.3 Loading Sentinel 2 settings into IDT................................................................11 
3.4 Saving settings from IDT into Sentinel 2.........................................................13 
4 Sentinel 2 System Kits..............................................................................................15 
5 Sentinel 2 Control Box –Description......................................................................15 
5.1 Logger functions...............................................................................................15 
5.2 PRV Control functions ......................................................................................16 
5.3 Controller Description......................................................................................16 
6 Hydroswitch - Description.......................................................................................18 
7 Mechanical Actuator................................................................................................21 
8 Summary of PRV Function (Pilot operated) ...........................................................21 
8.1 Main valve .........................................................................................................21 
8.2 Pilot Valve operation ........................................................................................22 
8.3 Pilot operated pressure reducing valve..........................................................22 
9 PRV Function (under Sentinel 2 control) ................................................................23 
9.1 Sentinel 2 Mechanical Actuator.......................................................................23 
9.2 Theory of operation (2-point pressure modulation; High and Low) ............24 
3Configuration options (diagrams)..................................................................................26 
1 Key to components within the diagrams...............................................................26 
2 Standard installations: 2-point pressure control ..................................................29 
2.1 Using: internal transducers (Upstream pressure < 90 m).............................29 
2.2 Using: external pressure transducers (Upstream pressure < 90 m)...........30 
2.3 Using: internal transducers (Upstream pressure > 90 m).............................31 
2.4 Using: external pressure transducers (Upstream pressure > 90 m)...........32 
3 (Other Installation Options) ....................................................................................33 


3.1 Additional Data Logging interfaces .................................................................33 
4Installation procedure ....................................................................................................34 
1 Position Control box and Hydroswitch / Connect. ................................................35 
1.1 Antenna .............................................................................................................35 
1.2 Battery ...............................................................................................................35 
1.3 Hydroswitch ......................................................................................................35 
2 Connection to the Flow meter ................................................................................36 
3 Connect External Pressure transducers to Sentinel 2 ..........................................36 
4 Check / modify Sentinel 2 channel settings...........................................................37 
5 Re-zero Pressure transducers ................................................................................43 
6 Prepare the pipework for the Sentinel 2................................................................45 
7 Prepare the PRV for Sentinel water feed / pressure transducers........................46 
8 Connect Sentinel side pipework .............................................................................47 
9 Set Hydroswitch valve into Auto mode ..................................................................48 
10 Connect transducers and control pipework on PRV side.....................................49 
11 Preparing to fit the actuator ...................................................................................49 
12 Fitting and adjusting the HWM mechanical actuator............................................51 
13 Bleed air from the pipework and actuator ............................................................53 
14 Test Pressure transducers ......................................................................................54 
15 Testing the Actuator and PRV Pressure change response ...................................55 
16 PRV Control method and Settings ..........................................................................56 
16.1 Setup of pressure control using a Time profile..............................................56 
16.2 Setup of a (pressure) Safety Override for Time Control................................58 
16.3 Setup of pressure control using a Flow profile ..............................................58 
16.4 Setup of pressure control using a combined Time and Flow profile ...........61 
17 Setup for annual time adjustments .......................................................................61 
18 Save Program / Activating Sentinel PRV control....................................................62 
19 Setting Logger Startup / Measurement Sample Rates..........................................63 
20 Setup of Data Delivery.............................................................................................63 
20.1 Call-in times (schedule and protocol) .............................................................63 
20.2 Destination........................................................................................................64 
20.3 Setting Network access parameters ...............................................................65 
21 Communications / Antenna location check...........................................................66 
22 Verification of the configuration.............................................................................68 
23 Protection from Frost ..............................................................................................68 

4 
5Graphing / data download and preview........................................................................69 
5.1 Manual download of data into IDT / Preview as a graph .....................................69 
6Connection Information .................................................................................................71 
6.1.1 FLOW Meter connection / cable RAG 93.........................................................71 
7Maintenance, Service and Repair...................................................................................72 
7.1.1 Return of product for Investigation, Service. Or Repair: ...............................72 
7.1.2 Putting the equipment into Shipping Mode...................................................73 
8Appendix A –IDT Options...............................................................................................75 
8.1 Change of units of measure for displayed data....................................................75 
 
 

1SYSTEM DOCUMENTATION AND SUPPORT OF PRODUCT

1.1 DOCUMENTATION AND TECHNICAL SUPPORT

Thank-you for choosing a HWM device. We trust it will provide you with many years of

service.

The Sentinel 2 system is designed to control the outlet pressure from a clean-water

pressure reducing valve.

This user-guide provides details of the Sentinel 2 system components. It provides details

of how to install the product in a stand-alone mode and also (optional) integration with

the HWM DataGate system, providing on-line viewing of pressure measurements.

This user-guide covers the following models:

Model Number(s) Description

C163C/*/*/*/S* Sentinel 2 Controller unit

C163F/*/*/*/S* A kit including the Sentinel 2 Control box plus additional

components to make a complete Sentinel 2 system.

Accessories Description

RCA7922L Hydroswitch with solenoid.

Note: The part-number structure is similar to the Pegasus 2 family of models.

Pegasus 2 has its own user-guide.

Note: The system periodically has new features and changes released, thus you may

observe slight changes in layout from those shown in this manual.

Additionally, views can vary depending on what user-role you have been

given and its permissions.

HWM provides support of the Sentinel 2 system by means of our customer support

webpages: (Note: Customer registration is required to access).

https://www.hwmglobal.com/help-and-downloads/

Should you have any questions that are not covered by this manual or the system’s

online help, please contact the HWM Technical Support team on +44 (0) 1633 489479,

or email cservice@hwm-water.com

1.2 SAFETY

Before continuing, please read the “Safety Warnings and Approvals Information”

document supplied with the product.

WARNING: This equipment should be installed, adjusted, and serviced by qualified

water industry maintenance personnel familiar with the construction and operation of

the equipment and the hazards involved. Failure to observe this precaution could result

in damage to the water network.

2OVERVIEW

2.1 INTRODUCTION

Sentinel 2 is a system that is used to control the outlet pressure of a pressure reducing

valve (PRV) within a clean-water supply pipe network. This section gives an overview of

Sentinel 2, the equipment that is required to use it, and other (optional) system

elements.

The system is designed to control pressure reducing valves that are designed and

manufactured by 3rd party suppliers. Only general details of PRV valve construction are

included in this manual, and any images are for illustration purposes only.

Pressure control can be:

•2-point control:

i.e. Automatic switching between two pre-set pressure levels (High and Low).

The Sentinel 2 product is ideal for this situation.

•Continuous control:

i.e. Incremental adjustment of pressure, between a maximum and minimum;

The Pegasus 2 product is ideal for this situation.

(Refer to the Pegasus 2 manual for further details)

Sentinel 2 switches the PRV output pressure to either a High or Low setting based on a

pre-determined pressure profile.

The profile can be based on:

•The time of day, or

•The flow rate (demand) of water, or

•Both of the above.

The pressure profiles are defined by settings or tables within the unit. Tables can be

entered manually during installation. Sentinel 2 can also communicate with a central

server that stores its measurement data. The server can be used for remotely analysing

the effectiveness of the pressure control and (if required) remotely update the unit’s

settings. (This is achieved via PressView web software).

The system also offers a fail-safe mode, where it can operate the PRV at a fixed outlet

pressure when certain fault conditions occur (e.g. detection of a sensor failure).

Sentinel 2 includes a built-in data logger.

The Sentinel 2 system typically consists of the following parts:

•A Control Box unit.

•A Hydroswitch unit.

•A HWM mechanical actuator.

•An accessory kit for plumbing-in the Sentinel 2 system to work with the PRV.

(HWM can supply standard kits containing coloured plastic tubing, a 3-way

manual valve, quick-connect fittings).

•Hanging bracket.

•Cables for sensors (transducers or meters).

•An antenna for communication of data over the mobile cellular network

(For server integration).

•External battery (optional / if required).

•A USB Communications cable (an accessory required for on-site installation,

programming, and data retrieval).

The system will contain interfaces for measurement of water pressure. These may be

built-in transducers (for connection to the system via water pipes) or (where external

transducers are employed) attached via cables.

The system operates from internal batteries or (optional) using an

additional external HWM battery unit (see opposite).

Where supplied, the external battery power is used to extend the

battery life of the system or more frequent communications with the

host server.

The battery connection has to be removed whenever the

communications cable is fitted; they share the same connector.

Be sure to re-connect the battery prior to leaving the unit.

Sentinel 2 compatibility with Sentinel Plus

The Sentinel 2 system replaces previous generations of HWM pressure control systems,

known as Sentinel Plus.

Existing sensors and pipework may be compatible and may be re-used with a Sentinel 2

installation if in good condition; Discuss with your HWM sales representative if required.

The USB Communications cable is compatible between Sentinel Plus and Sentinel 2

systems.

The Sentinel 2 system controls the PRV by means of hydraulic actuation. It can monitor

upstream pressure, downstream pressure, and flow through the PRV. It may therefore

require connection to various points in the water supply and PRV.

An example of a PRV

with Sentinel 2 system

installed is shown

opposite.

Several plumbing

configurations exist,

depending on

upstream and

downstream

pressures.

Configuration also

dependent on the

parameters that need

to be logged.

The model number of

each unit must be

selected to match the

requirements of the

installation.

An example of the standard installation accessory

kit, plus the actuator, and brackets are shown

above and opposite.

2.2 SERVER INTEGRATION OPTION:DATAGATE AND PRESSVIEW WEBSITES

When integrated with HWM’s DataGate server, the Sentinel measurement data can be

stored on the server every time the unit makes a call-in.

The data can be viewed remotely / graphically by anyone with a suitable user account

(and password) using a standard web-browser. The data is viewed in PressView.

The PressView website allows the Sentinel 2 data to be combined with pressure

measurements made (by another HWM logger device) some distance down-stream of

the PRV (e.g. at a “critical point”). Both the local and remote measurements can be

assessed by a user, and (whenever an adjustment is needed) revised pressure profiles

can be sent to the Sentinel unit. This feature is not covered further in this document;

refer to the User-Guide or instructions for PressView for more details.

The Sentinel 2 can also send any fault notifications (alarms) to the server for forwarding

to interested parties.

2.3 COMMUNICATING WITH SENTINEL 2

To communicate with the Sentinel 2 system a communications cable is required

(part-number COMAEUSB or CABA2075) to connect the Control Box to a PC.

The PC also requires a HWM software utility called “Installation and Diagnostic Tool”, or

more commonly known as IDT (PC version).

IDT is introduced in this section but relevant parts of it will also appear at places

elsewhere in the manual.

2.3.1 Download of IDT (PC version)

IDT (PC version) can be downloaded

from the HWM Customer Support

website, or from the following webpage:

https://www.hwmglobal.com/idt-

support/

Note: The user has to be registered by

HWM and have a password to gain

access).

Once installed, an icon will be available

on the PC desktop similar to that shown

opposite:

Launching the program will result in IDT

loading and an initial screen, as shown.

To read the Sentinel 2 device a suitable

Comms cable must first be fitted.

2.3.2 Connecting the Comms Cable

A cable of the type

COMAE/USB

is shown opposite.

Attach the Comms

cable to the

“COMMS /

EXT.BATTERY”

connector of

the Sentinel 2

Control Box.

Connect the other

side of the connector to

the PC (USB port).

It is now possible to communicate with the Sentinel 2 system using IDT.

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