Smart Storm Universal Smart Meter User manual

UNIVERSAL SMART METER-pH and ISE METER USER MANUAL v2.0 page 1 of
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1 Lon Cae Darbi
Cibyn Industrial Estate
Llanberis Rd, Caernarfon
Gwynedd, LL55 2BD
T :(0)1422 363462
E : [e-mail]
Web : www.smartstormgroup.com
USM pH/ISE METER
INSTRUCTION MANUAL
V 2.0

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Contents
1. SPECIFICATION.................................................................................................6
2. GENERAL INFORMATION. ................................................................................7
2.1. Safety information.........................................................................................7
2.2. Use of hazard information.............................................................................8
2.3. Precautionary labels......................................................................................8
2.4. Wiring and Handling Precautions..................................................................9
3. ABOUT THE USM pH/ISE METER. ..................................................................10
3.1. USM PROBES............................................................................................10
3.1.1. ISE Probes. ..........................................................................................10
3.1.2. Digital Probes.......................................................................................10
3.2. USM CONNECTIONS.................................................................................12
3.3. TURN ON....................................................................................................13
4. CONFIGURING THE USM................................................................................14
4.1. CONFIGURATION MENU ACCESS...........................................................15
4.2. CONFIGURATION MENU...........................................................................16
4.3. ANALOGUE PROBE SET UP.....................................................................17
4.3.1. pH Calibration.......................................................................................17
4.3.2. Redox Calibration.................................................................................21
4.3.3. Calibration of Other ISE Probes. ..........................................................22
4.4. DIGITAL PROBE SET UP...........................................................................25
4.4.1. Detect Probe.........................................................................................25
4.4.2. Display Parameters. .............................................................................26
4.4.3. Digital Probe Calibration.......................................................................27
4.4.3.1. pH/Redox.......................................................................................27
4.4.3.2. Turbidity.........................................................................................27
4.4.3.3. Dissolved Oxygen..........................................................................27
4.4.3.4. Conductivity C4E............................................................................27
4.4.3.5. Conductivity CTZ............................................................................27
4.5. TEMPERATURE SET UP...........................................................................28
4.6. MODBUS BMS SET UP..............................................................................29
4.7. 4-20mA SET UP..........................................................................................30
4.7.1. Typical 4-20mA SET UP for pH Balancing. ..........................................31

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4.8. 4-20mA TEST. ............................................................................................32
4.9. RELAY SET UP. .........................................................................................34
4.10. RELAY TEST...........................................................................................36
4.11. NEW USER PASSWORD........................................................................36
4.12. SET DATE AND TIME.............................................................................36
4.13. SCREEN SAVE MODE............................................................................37
4.14. LOGGER INTERVAL...............................................................................37
4.15. ENGINEER MENU...................................................................................38
5. USM DISPLAY SCREENS. ...............................................................................39
5.1. HOME SCREEN. ........................................................................................39
5.2. DIGITAL PROBE SCREEN 1......................................................................41
5.3. DIGITAL PROBE SCREEN 2......................................................................41
5.4. Relay Status Screens..................................................................................42
5.5. 4-20mA Screens. ........................................................................................43
5.6. Slope Configuration Screen. .......................................................................43
5.7. Date and Time Screen................................................................................44
5.8. Modbus Set Up Screen...............................................................................44
5.9. About USM..................................................................................................44
6. Fault Finding......................................................................................................45
7. APPENDICES....................................................................................................46
7.1. APPENDIX A. ISE PROBES.......................................................................46
7.2. APPENDIX B. MODBUS REGISTERS......................................................47
8. Declaration of Conformity ..................................................................................48
List of Tables
Table 1-1 Device Specification...................................................................................6
Table 4-1 Key Functionality......................................................................................14
Table 4-2 Digital Probe Parameters.........................................................................26
Table 6-1 Fault Finding. ...........................................................................................45
Table 7-1ModBus Registers.....................................................................................47

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List of Figures
Figure 3-1 Relay Board Connections .......................................................................12
Figure 3-2 Smart Storm Screen ...............................................................................13
Figure 3-3 Home Screen..........................................................................................13
Figure 4-1 USM........................................................................................................14
Figure 4-2 Password Screen....................................................................................15
Figure 4-3 Configuration Menu Screen ....................................................................15
Figure 4-4 Probe Type Screen.................................................................................17
Figure 4-5 pH Calibration Buffer 1............................................................................17
Figure 4-6 pH Calibration Buffer 1Sampling.............................................................18
Figure 4-7 pH Calibration Buffer 1 Stable.................................................................18
Figure 4-8 pH Calibration Buffer 2............................................................................18
Figure 4-9 pH Calibration Buffer 2 Stable.................................................................19
Figure 4-10 pH Calibration Results. .........................................................................19
Figure 4-11 pH Calibration Results Out of Range....................................................20
Figure 4-12 Redox Calibration. ................................................................................21
Figure 4-13 Redox Buffer Solution...........................................................................21
Figure 4-14 Redox Sampling....................................................................................21
Figure 4-15 Redox Calibration Results.....................................................................22
Figure 4-16 Select ISE Probe...................................................................................22
Figure 4-17 Select Buffer A......................................................................................23
Figure 4-18 ISE Sampling of Buffer A. .....................................................................23
Figure 4-19 Select Buffer B......................................................................................23
Figure 4-20 ISE Sampling of Buffer B. .....................................................................24
Figure 4-21 Calibration Information..........................................................................24
Figure 4-22 Digital Probe Detect..............................................................................25
Figure 4-23 Digital Probe Scan Result.....................................................................25
Figure 4-24 Display Digital Probe Parameters.........................................................26
Figure 4-25 Temperature Mode ...............................................................................28
Figure 4-26 MODBUS Setup....................................................................................29
Figure 4-27 MODBUS Parameter Select..................................................................29
Figure 4-28 4-20mA Status Screen..........................................................................30
Figure 4-29 4-20mA Set UP Screen.........................................................................30
Figure 4-30 4-20mA Parameter Selection................................................................31
Figure 4-31 4-20mA for pH balancing. .....................................................................32
Figure 4-32 4-20mA Testing.....................................................................................32
Figure 4-33 Change the mA Output.........................................................................33
Figure 4-34 Relay Status Screen. ............................................................................34
Figure 4-35 Relay Set Up Screen. ...........................................................................34
Figure 4-36 Relay Set Up Parameter Change..........................................................35
Figure 4-37 Relay Testing........................................................................................36
Figure 4-38 Time and Date Setting. .........................................................................36
Figure 4-39 Screen Saver Setting............................................................................37

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Figure 4-40 Logger Interval Setting..........................................................................38
Figure 5-1 Home Screen ISE ..................................................................................39
Figure 5-2 Home Screen ISE with Temperature. .....................................................39
Figure 5-3 Digital Probe Only...................................................................................40
Figure 5-4 Digital Probe Screen 1............................................................................41
Figure 5-5 Digital Probe Screen 2............................................................................41
Figure 5-6 Relay Page 1. .........................................................................................42
Figure 5-7 Relay Page 2. .........................................................................................42
Figure 5-8 4-20mA Screen.......................................................................................43
Figure 5-9 Slope Configuration. ...............................................................................43
Figure 5-10 Modbus Set Up Screen.........................................................................44

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1. SPECIFICATION.
Specifications
Universal Smart Meter –Level Meter
Inputs
Temperature Range
Display
Relays
Current Output
Mains Supply
DC Supply
Power Consumption
Weight
Enclosure Dimensions
Mounting Dimensions (including cable
glands, etc.)
pH/ISE probe.
ModBus probe.
-5 - 50 °C
Graphic LCD 124x64 dots Negative
Blue
3 SPDT, 5A
4 –20 mA galvanic isolated
100 –240 VAC 50/60Hz. Switched-
mode power supply
12V or 24V
5VA
450 grams, Wall Mount Version
160 mm x 130 mm x 60 mm
185 mm x 155 mm x 60 mm
Table 1-1 Device Specification

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2. GENERAL INFORMATION.
The information contained in this manual has been carefully checked and is believed
to be accurate. However, Smart Storm assumes no responsibility for any inaccuracies
that may be contained in this manual. In no event will the Smart Storm be liable for
direct, indirect, special, incidental or consequential damages resulting from any defect
or omission in this manual, even if advised of the possibility of such damages. In the
interest of continued product development, Smart Storm reserves the right to make
improvements in this manual and the products it describes at any time, without notice
or obligation. Revised editions may be found on the Smart Storm’s web site
www.smartstorm.eu
2.1. Safety information
Please read this entire manual before unpacking, setting up or operating this
equipment. Pay attention to all danger,warning and caution statements. Failure
to do so could result in serious injury to the operator or damage to the
equipment. Make sure that the protection provided by this equipment is not
impaired, do not use or install this equipment in any manner other than that
specified in this manual.
DANGER
Smart Storm products are designed for outdoor use are provided with a high level of
ingress protection against liquids and dust (see specification for rating). If these products
are connected to a mains electricity socket by means of a cable and plug rather than by
fixed wiring, the level of ingress protection of the plug and socket connection against
liquids and dust is considerably lower. It is the responsibility of the operator to protect the
plug and socket connection in such a manner that the connection has an adequate level of
ingress protection against liquids and dust and complies with the local safety regulations.
When the instrument is used outdoors, it should be connected only to a suitable socket
with at least IP44 rating (protection against water sprayed from all directions).

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2.2. Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, could result
in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate injury.
NOTICE
Indicates a situation that, if not avoided, could result in damage to the instrument. It also
indicates information that requires special notice.
2.3. Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the
instrument could occur if not fully observed.
This symbol, if noted on the instrument, references the instruction
manual for operation and/or safety information.
This symbol, when noted on a product enclosure or barrier, indicates
that a risk of electrical shock and/or electrocution exists
This symbol, if noted on the product, indicates the need for
protective eye wear.
This symbol, when noted on the product, identifies the location of the
connection for Protective Earth (ground).
This symbol, when noted on the product, identifies the location of a
fuse or current limiting device.

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2.4. Wiring and Handling Precautions
DANGER
Electrocution Hazard. Always disconnect mains supply before removing covers
and connecting any external wiring.
Only qualified Electricians should install this product. IET BS7671:2008 wiring
regulations must be adhered to when installing the product.
NOTICE
Delicate internal electronic components can be damaged by static electricity,
resulting in indeterminate instrument performance or eventual failure. Smart Storm
recommends taking the following steps to prevent ESD damage to your
instrument:
Before touching any instrument electronic components (such as printed circuit
cards and the components on them) discharge static electricity from your body.
The user can accomplish this by touching an earth - grounded metal surface for 3
seconds such as the chassis of an instrument, or a metal conduit or pipe.
To reduce static build-up, avoid excessive movement. Transport static-sensitive
components in anti-static containers or packaging.
To discharge static electricity from your body and keep it discharged, wear a wrist
strap connected by a wire to earth ground, especially when handling circuit boards.
Handle all static - sensitive components in a static - safe area. If possible, use anti-
static floor pads and work bench pads.
DANGER
Electrocution hazard. Always install a ground fault interrupt circuit (GFIC)/ residual
current circuit breaker (RCCB) with a maximum trigger current of 30 mA. If
installed outside, provide overvoltage protection through a MCB rated not greater
than 5 Amps.
DANGER
With fixed wiring, a disconnecting device (local interruption) must be integrated
into the power supply line. The disconnecting device must meet BS7671:2008
standards and regulations. It must be installed near the device, be able to be
reached easily by the operator and labelled as a disconnecting device.
If the connection is established using a mains connection cable that is permanently
connected to the power supply, the plug of the mains connection cable can serve
as local interruption.
DANGER
Ensure the relays are not subjected to loads great than 5 Amps as this will cause
internal damage and possible product destruction.

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3. ABOUT THE USM pH/ISE METER.
The instrument is designed to read a range of environmental measurements
associated with the waste water industry with an optional on-board data logger for
recording and downloading to the Smart Storm Inquisitor data viewing platform.
Three relays (with LED indication) and two 4-20mA outputs are provided to control
ancillary equipment and the meter can be interrogated remotely using Modbus RTU
(RS485) communication.
3.1. USM PROBES.
The USM can be used with one ISE probe AND one digital probe from the
following lists.
3.1.1. ISE Probes.
The following ISE probes can be used with the USM:
•pH
•Redox
•Ammonia
•Ammonium
•Calcium
•Chloride
•Fluoride
•Nitrate
•Potassium
3.1.2. Digital Probes.
The following Digital probes can be used with the USM:
•pH/Redox
•Turbidity
•Dissolved Oxygen
•Conductivity C4E
•Conductivity CTZ
•TSS

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3.2. USM CONNECTIONS.
The connection terminals are accessible by removing the cover of the USM. All
connections should be made through appropriate cable glands to maintain the
IP rating of the unit.
The unit is factory built to either 100 –240 Vac input (CONN2) or DC input
(CONN3).
CONN4 provides access to three configurable relays with Common (COM),
Normally Open (NO) and Normally Closed (NC) connections available.
CONN5 provides two isolated 4-20mA outputs.
CONN6 - top row provides the RS485 connections for remote access to the
USM measurements (Building Management System BMS).
CONN6 - bottom row provides the RS485 connections for the connection of a
digital probe. The power connections for the probes are also available.
CONN7 –provides the connection for the ISE probe including a PT100
temperature input and a connection for grounded probes.
Figure 3-1 Relay Board Connections

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3.3. TURN ON.
When the unit is turned on a splash screen (Figure 1) will be shown detailing
the contact details of Smart Storm. This will remain on for a few seconds while
the USM measurements stabilise.
Figure 3-2 Smart Storm Screen
This will be followed automatically by the Home Screen (Figure 2).
Figure 3-3 Home Screen
The Home Screen shows the selected Main Display Parameter (in the selected
units) with a bar graph and percentage indicating either the Level or Distance.
When the unit is first turned on the display will be inaccurate as flow device
parameters will not have been set. Further display options are outlined in
Section 5. The red LED at the side of the display will flash at a rate of 2Hz. This
indicates data is being received.
Pressing the Home Button will return the Display to the Home Screen from
all other display screens.

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4. CONFIGURING THE USM.
Figure 4-1 USM
The USM is configured using the four push buttons.
Button
Action
Scroll Right or Enter
Scroll up, Increment Numbers
Scroll down, Decrement Numbers
Return to previous menu level or to Home
Screen and Abort
Table 4-1 Key Functionality

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4.1. CONFIGURATION MENU ACCESS.
The unit is configured through the MENU page which is password protected.
From the Home Screen, press button to access the PASSWORD page.
Figure 4-2 Password Screen.
Use and buttons to select the desired digit at each location and press
button to select the next digit. If a digit is entered incorrectly press to
return to the Home Screen.
The factory set password to access the configuration menu is '0000'. This can
be changed.
If an incorrect password is entered 3 times the USM will lock the menu for 5
minutes.
If PASSWORD is correct, access to The Configuration MENU page is granted.
Figure 4-3 Configuration Menu Screen

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4.2. CONFIGURATION MENU.
There are 13 sub menus to the Configuration menu:
1. ANALOGUE PROBE SET UP
2. DIGITAL PROBE SET UP
3. TEMPERATURE SET UP
4. MBUS BMS SET UP
5. 420mA SET UP
6. 420mA TEST
7. RELAY SET UP
8. RELAY TEST
9. NEW USER PASSWORD
10. SET DATE AND TIME
11. SCREEN SAVE MODE
12. LOGGER INTERVAL
13. ENGINEERING MENU
Use and buttons to align the cursor with required sub menu and press
button to select. The key will return the USM to the Home Screen.
The ENGINEERING menu contains settings which should only be changed by
Smart Storm and requires an additional password.
N.B. When the Configuration Menu is entered, the status of the relays and
the 4-20mA output are not updated.
if no key is pressed for 2 minutes the USM will exit the Configuration Menu
and return to the Home Screen without saving any changes.

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4.3. ANALOGUE PROBE SET UP.
Select ANALOG PROBE on the MENU page and press button. The
following screen will be accessed.
Figure 4-4 Probe Type Screen
Use the and buttons to select the probe type and press to confirm
the selection.
4.3.1. pH Calibration.
Select pH and press button to confirm the selection. For the probe
to correctly measure the pH it must first be calibrated.
Figure 4-5 pH Calibration Buffer 1
The USM uses two-point calibration for pH. Fresh buffer solutions should
be used to calibrate the probe and discarded after use.
Use the and buttons to enter the pH value of the first buffer
solution and press to confirm. In the above example a buffer solution
of pH 4 is being used.

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Ensure the probe is clean and dry and place it in the first buffer solution,
ensuring the bulb of the probe is completely submersed.
Figure 4-6 pH Calibration Buffer 1Sampling
The USM will display the mV reading being measured and the
corresponding pH value using the last calibration parameters.
After a few seconds the reading will stabilize and the screen will
change
Figure 4-7 pH Calibration Buffer 1 Stable.
Press to accept the reading. The second point can nowbe calibrated.
Figure 4-8 pH Calibration Buffer 2.

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Use the and buttons to enter the pH value of the second buffer
solution and press to confirm. In the above example a buffer solution
of pH 7 is being used.
Ensure the probe is clean and dry and place it in the second buffer
solution, ensuring the bulb of the probe is completely submersed.
Figure 4-9 pH Calibration Buffer 2 Stable
Wait for the reading to stabilize and press to confirm. The USM will
display the results of the calibration.
Figure 4-10 pH Calibration Results.
Press to accept the values and confirm the data is to be saved. If the
Home key is pressed at any stage before the Save Data is confirmed,
the USM will quit the calibration and restore the previous calibration
results.
An ideal pH probe will have an offset (the mV reading in pH 7) of 0mV
and a slope of -59.16 mV/pH @ 25ºC. pH probes are not ideal and will
deteriorate over time and will eventually require replacing.

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The USM has limits beyond which it will reject the calibration as invalid
as the readings could not be trusted. The following screen will appear.
Figure 4-11 pH Calibration Results Out of Range
The USM assesses the validity of a calibration using the absolute mV
readings recorded and it is not dependent on any previous calibration of
the instrument.
Before replacing the probe check that:
•The Calibration has been performed correctly –at least one more
attempt at calibration should be made.
•Ensure that the probe is clean and dry before placing in the buffer
solutions.
•Ensure the buffer solution and clean and have been made
correctly.