Hynds Smarterwater Stormwater 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 S1.2IMI
Version: 1.0
December 2021
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Contents
1. Safety Considerations ................................................... 2
2. Installation Instructions ................................................ 2
3. Maintenance Instructions ............................................. 7
Technical Support Sheet - Installation & Maintenance Instructions
Smarterwater®
Stormwater Manhole Sensor
This document provides step by step installation and maintenance guidance for
the Hynds Smarterwater®Stormwater Manhole Sensor.

1. Safety Considerations
The Hynds Smarterwater®Stormwater Manhole Sensor can be installed in stormwater system where requires 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.
• The batteries shall not be replaced by the user.
• Installation, maintenance, and repairs are to be performed by authorised and trained personnel only. If in doubt, contact
Hynds Smarterwater®on 09 274 0316 or email [e-mail].
2. Installation Instructions
Suggested Equipment
■PPE
■Manhole cover safety grille
■Gas detector
■Lid lift
■Grinder
■Spanner
■Cones and barriers
■Rags
■Hole Saw
■Trafc Management as required
FIG. 1 Smarterwater®Stormwater Manhole Sensor Exploded Diagram
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.
S1.2IMI STORMWATER MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 2

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.
S1.2IMI STORMWATER MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 3

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.
S1.2IMI STORMWATER MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 4

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.
S1.2IMI STORMWATER MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 5

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.
S1.2IMI STORMWATER MANHOLE SENSOR INSTALLATION AND MAINTENANCE INSTRUCTIONS | PG 6

3. Maintenance Instructions
Equipment required:
■Safety gear
■Manhole cover grille
■Gas detector
■Lid lift
■Cones and barriers
■Cloth
■Trafc management as required
Note: The user/installer is responsible for ensuring the
correct tools are used in the appropriate zone and
environment. The step 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
cloth to wipe bottom of the housing. Do not open the
housing, replace batteries and/or remove any parts. Any
unauthorised action that may lead to potential damage to the
unit is at the operator’s risk.
Hynds can supply spare parts including antenna dome,
magnet key, nuts, washers, and the entire unit.
S1.2IMI STORMWATER 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.
Branches Nationwide Support Ofce & Technical Services 09 274 0316