Hynds Smarterwater Wastewater Manhole Sensor Installation and operating instructions

Disclaimer: While every effort has been made to ensure that the information in this document is correct and
accurate, users of Hynds product or information within this document must make their own assessment of
suitability for their particular application. Product dimensions are nominal only, and should be veried if
critical to a particular installation. No warranty is either expressed, implied, or statutory made by Hynds
unless expressly stated in any sale and purchase agreement entered into between Hynds and the user.
TSS S1.3IMI
Version: 3.1
December 2021
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Contents
1. Safety Considerations ................................................... 2
2. Intrinsic Safety Considerations.................................... 2
3. Installation Instructions ................................................ 3
4. Maintenance Instructions ............................................. 8
Technical Support Sheet - Installation & Maintenance Instructions
Smarterwater®
Wastewater Manhole Sensor
This document provides step by step installation and maintenance guidance for
the Hynds Smarterwater®Wastewater Manhole Sensor.

1. Safety Considerations
The Hynds Smarterwater®Wastewater Manhole Sensor has been designed and certied as Intrinsically Safe, allowing for its
use in IECEx dened Zone 2 environments. As such, it can be installed in eligible sewer, stormwater and other water
systems requiring water level measurement. The hazards while installing or maintaining this product can include but are
not limited to the presence of dangerous and explosive gases, conned spaces and fall risks. The user should follow their
organisation’s safety policies and ensure all safety procedures are adhered to when installing and performing maintenance of
the device.
2. Intrinsic Safety Considerations
The Hynds Smarterwater®Wastewater Manhole Sensor is Ex certied to the below parameters and IEC standards:
■Ex ic IIB T4 Gc
■-10 °C ≤ Ta ≤ +65°C
■IEC 60079-0:2017
■IEC 60079 -11:2011
Certicate numbers are listed below. Copies of these documents are available at https://www.iecex-certs.com
■IECEx ExTC 21.0016X
Special considerations:
■This product is IECEx certied to operate between an ambient temperature range of -10°C and +65°C.
■For further information on intrinsically safe parameters, refer to the IECEx product certicate.
■The product is rated for IP67 ingress protection. Do not clean the unit using a water blaster or similar pressurised water
equipment.
■Due to the potential electrostatic charging hazard, clean the unit with a damp cloth only.
■Avoid the use of solvents.
■The batteries shall not be replaced by the user.
■Installation, maintenance, and repairs are to be performed by authorised and trained personnel only. Any unauthorised
action (including the opening of the housing unit, the replacement of batteries and/or removal of parts) may lead
to losing IP67 protection and/or Ex certication. If in doubt, contact Hynds Smarterwater®on 09 274 0316 or
email [e-mail]
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 2

3. Installation Instructions
The Hynds Smarterwater®Wastewater Manhole Sensor has been designed and certied as Intrinsically Safe, allowing for its
use in IECEx dened Zone 2 environments. As such, it can be installed in eligible sewer, stormwater and other water
systems requiring water level measurement. The hazards while installing or maintaining this product can include but are not
limited to the presence of dangerous and explosive gases, conned spaces and fall risks.
Suggested Equipment
■PPE
■Manhole cover safety grille
■Gas detector
■Lid lift
■Grinder
■Spanner
■Cones and barriers
■Rags
■Hole Saw
■Trafc Management as required
Note: The user/installer is responsible for ensuring only properly rated tools are used in the hazardous zone. The
installation steps 1, 2 and 3 are suggestions only, and the user/installer should check and follow their
organisation’s safety policies and site asset access procedures before commencing installation.
FIG. 1 Smarterwater®Wastewater Manhole Sensor Exploded Diagram
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 3

1. Isolate the working zone
2. Remove manhole cover by using lid lifter and place the
manhole cover aside in a safe working area.
3. Ensure the area is safe from hazards in accordance with
your organisation’s safety operating procedures. For
example, hazard identication and relevant testing may
be required. If safe to proceed, secure the manhole
access point with a manhole safety grille.
4. After moving the manhole cover to a safe area, choose
the best installation location on the manhole cover.
Subject to space and manhole lid design, the sensor
may be installed centrally or in an offset position
between the manhole cover ribs. Make sure there is
a at 160mm dia. clearance on the underside of the
manhole to accommodate the sensor body. Next, grind
the antenna area (top of the manhole cover) until the
ribs or patterns are at (ensure sparks from grinding do
not present a hazard for your location). The ground area
needs to be round in shape with a minimum of 115mm
dia. Drill a hole through the centre of the ground area
(at least dia. 25mm).
Note: The swarf from grinding and drilling rusts very easily and will
leave an orange stain if not contained. Ensure the area is enclosed
properly when drilling and grinding, capture the ne grinding particles
and dispose of them appropriately.
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 4

5. Insert antenna dome through the drilled hole from the
top of the manhole cover, then install the washer from
the underside of the manhole cover. While holding the
antenna with the Hynds antenna spanner, install and
tighten the nut to a minimum of 75Nm.
Products required:
■Antenna assembly
■M16 large washer
■M16 stainless steel lock nut
■Spanner provided by Hynds Smarterwater®
Special precautions when attaching the antenna to
a manhole cover:
■Ensure you use the lock nut provided with your
installation kit.
■Before adjusting the nut, check there are no gaps
between the antenna and the manhole cover surface.
Lock nuts can be difcult to remove.
■Take special consideration to avoid damage to the
antenna cable and connector when preforming
this operation.
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 5

6. Thread the antenna cable through the center hole of the
unit and slide the brain onto the stem (ensure the key
and groove are in the correct position).
7. Connect the gold plated connector to the bulkhead
tting on the housing. Once in place, use the tool
provided to tighten the connector, although this can
also be done by hand. Do not overtighten. Once the
gold plated connector is connected, ensure the wire
is tucked-in properly to the channel before the cable
access cover is installed. Secure the cable access cover
with the screw provided.
Note: Do not use metal spanner. Only use the spanner
provided. Please note the spanner provided is designed
to slip at the correct torque.
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 6

8. Install the washer and nut to secure the brain to the
manhole lid, then insert the safety pin.
9. Turn ON the device using key provided. The key must
be inserted for at least 2-3 seconds to allow for the
unit to be activated. A series of beeps will conrm the
status of the unit:
■Turn ON indication: Two long beeps
■Turning OFF indication: Four short beeps
■Error indication: Alarm clock style buzzer
10. Remove the manhole safety grille and re-install the
manhole cover complete with Smarterwater®sensor.
S1.3IMI SMARTERWATER WW MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 7

Disclaimer: While every effort has been made to ensure that the information in this document is correct and
accurate, users of Hynds product or information within this document must make their own assessment of
suitability for their particular application. Product dimensions are nominal only, and should be veried if
critical to a particular installation. No warranty is either expressed, implied, or statutory made by Hynds
unless expressly stated in any sale and purchase agreement entered into between Hynds and the user.
4. Maintenance Instructions
Equipment required:
■Safety gear
■Manhole cover grille
■Gas detector
■Lid lift
■Cones and barriers
■Damp cloth
■Trafc management as required
Note: If any electrical equipment is used, it must be
IECEx certied. Otherwise, it can only be used outside
of the hazard zone. The user/installer is responsible
for ensuring the correct tools are used in the
appropriate zone and environment. Steps 1, 2 and 3 are
suggestions only.
Isolate the working zone and ensure the working area is safe
to work. We suggest following step 1, 2, and 3 from
Installation Instructions (please note, the user/installer
should check and follow their organisation’s safety
policies and site access procedures before commencing
maintenance).
Once the Smarterwater®manhole sensor is retrieved, use a
damp cloth to wipe bottom of the housing. Do not open the
housing, replace batteries and/or remove any parts. Any
unauthorised action may lead to losing IP67 protection and
the Ex certication.
Hynds can supply spare parts including antenna dome,
magnet key, nuts, washers, and the entire unit.
Branches Nationwide Support Ofce & Technical Services 09 274 0316