Aquatic Ecosystems Aquarium room Morrill II Aquatic Lab Manual RM-326

16 Pages·2009·0.93 MB·English

Aquatic Habitats Inc.

Lab Equipment Manual

Location: University of Massachusetts, Amherst
Campus
Morrill II Science Lab
Room 326

Aquatic Habitats Inc.
398 Essex St
Beverly, MA 01915
888-624-8265
Table of Contents

System A. Mantis Shrimp 3
System B. Spiny Lobster 4
System C. Prefiltration 5
WSDS 1-2 6
MANTIS SHRIMP LIFE SUPPORT EQUIPMENT 7-8
SPINY LOBSTER LIFE SUPPORT EQUIPMENT 9-10

Appendix A: Making Salt Water 11
Appendix B: Spares and supply list 12
Appendix C: Warranty 13-14
Appendix D: As Built Room layout and process flow diagram

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System A. Mantis Shrimp
{8} Racks (RCK A1-A8)
{6} 05-gal Tanks per Rack
{2} 15-gal Tanks per Rack
{4}- Reservoirs (RES A1-A4)
-Automation and alarming
-YSI 5200 monitoring system
-MRFS with Satellite Control Boxes

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System B. Spiny Lobster
{2} Racks (RCK B1-B2)
{1} 90-gal Tank per Rack
{1} Reservoirs (RES-B1)
-Automation and alarming
-YSI 5200 monitoring system
-MRFS with Satellite Control Boxes

4
SYSTEM C: PREFILTRATION

Both systems A and B are full strength seawater (32-34 PPT) (52 mS)
Both systems are supported by a RO treatment system provided by:
Industial Water Technologies
25 Fuller Street
North Attleboro, MA 02761
508-699-6711

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AHAB Supplied:
1- RO Storage Tanks (WSDS-1)
1- Saltwater Storage Tank (WSDS-2)

RO FILTRATION AND WSDS-1 INTERFACE
The RO filtration package is controlled by a pressure sensor that is mounted to the front
panel of WSDS-1 and monitors the water level in that tank. The sensor shuts the
filtration equipment off at a certain level and turns it back on at a lower level. This keeps
the RO storage tank near full at all times.

RO WATER DISTRIBUTION FROM WSDS-1
The RO water is distributed from WSDS-1 by two ¼” tubes. One tube feeds each
system. RO water is delivered to the system through a solenoid valve that is controlled
by the YSI monitor conductivity reading. If conductivity increases, RO water is added to
the system.

RO water is also pumped to the saltwater storage system. There is a manual isolation
valve and a mechanical float switch on this line. The manual valve is opened to fill the
Salt Water Storage tank (WSDS-2) from the RO storage tank (WSDS-1). The
Mechanical float valve makes sure it is not overfilled. See Appendix A on how to make
Salt Water.

SALT WATER DISTRIBUTION FROM WSDS-2
Salt water from WSDS-2 is pumped and distributed to System A and B reservoirs
through the mechanical float valves. In the event that water level drops in the sumps,
saltwater will automatically refill these sumps from WSDS-2.

6
MANTIS SHRIMP LIFE SUPPORT EQUIPMENT
Monitoring and Control Theory of Operation

MULTI-RACK FLOW SENSOR AND SATELLITE BOXES
System A is provided with a Multi-Rack Flow Switch (MRFS). This is a control box that
monitors water level in the reservoirs and flow in water return line. This box sends out a
control signal to Satellite Control Boxes (SAT) that interlocks the pumps with:
-UV Light
-Heaters
-Ph Dosing
The MRFS box receives signals from two level sensors in Res A1. There is a low and
high level sensor. Water level in the sumps must be high enough to activate both
switches for the pumps to be started. This is indicated on the front of the box by a green
light that indicates water level has reached the start position. If the water level drops
below the low water level sensor the pump is deactivated along with all the equipment
powered through the Satellite control boxes.

The MRFS box also receives a signal from the water flow switch, in the return line to the
racks. If this flow drops below a certain rate, it also deactivates the pumps and all the
equipment powered through the SAT boxes. The flow sensor also reports to the Auto-
dialer, Alarm #1.

Each SAT box has a manual ON/OFF switch on the front of the panel. Inside the SAT
boxes is another Switch that can override the control signal coming from the MRFS box.

The MRFS box has an ON/OFF switch on the front of the panel. There is also a start
button on the panel. To start the pump, the green LED indicating adequate water levels
must be illuminated and ON/OFF switch switched to the on position. The momentary
start button can then be depressed to start the pump. As long as water level in the sump is
maintained and adequate flow is maintained, the pump, and all equipment powered
through SAT boxes will remained powered.

HEATING CONTROL
Heaters are controlled by digital thermostats, one for each heater element. There are two
separate heating elements on two separate circuits, with independent controls. Each
thermostat is powered through a SAT box.

CONDUCTIVITY (SALINITY) MONITORING AND CONTROL
Conductivity is controlled by adding RO water to reduce the salinity of the system water.
The system conductivity will generally track upwards as water evaporates from the
system. The conductivity of the water in System A is monitored by the YSI 5200
controller. This controller powers a relay that powers a solenoid valve. Water from the
RO storage Tank (WSDS-1) is pumped through this solenoid valve and into System A to
reduce conductivity when necessary.
Conductivity was set at 52 mS. The high control range is 52.3 mS.
Dose time is 20 sec, the wait time is 2 minutes.
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PH MONITORING AND CONTROL
PH is controlled by adding buffer solution to the system water to increase the PH of the
system water. The system PH will generally track downwards as the biofiltration process
consumes alkalinity from the system. The PH of the water in System A is monitored by
the YSI 5200 controller. This controller powers a relay that powers a PH doser pump.
Water from the PH storage tank is pumped into System A to increase the PH when
necessary.
The PH system was requested to be left disabled during installation. It can be enabled
and programmed at a later date if so desired.

WATER CHANGE
Water is pumped from the system through a solenoid valve to a floor drain to discharge a
certain amount of water each day. The solenoid valve is powered by same 24 volt control
signal going to the SAT Boxes. The signal passes through a Relay in the YSI that is
controlled by TIMER #1. This timer can be programmed to control the duration of the
water change. The discharge flow rate is approximately 1 GPM. The system was
installed with a 5 minute water change ( 5 gal) from 10:00 am – 10:05 am)

YSI MONITOR
The YSI monitors system temperature, conductivity (salinity), pH, and dissolved O2.
The YSI controls Salinity and PH and the water change.
The general alarm from the YSI on System A is connected to the AutoDialer (Alarm #2).

There are 4 internal relays in the YSI. They are dedicated to the following processes:

Relay # Power Source Control Mechinism Control Parameter
1 MRFS (24v) SAT Box PH
2 Outlet (120v) Solenoid valve Conductivity
3 MRFS (24VDC) Solenoid Water Change
4 Autodialer ALM #2 Switch General Alarm

Timer #1 is programmed to Relay #3 for water change.

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SPINY LOBSTER LIFE SUPPORT EQUIPMENT
Monitoring and Control Theory of Operation

MULTI-RACK FLOW SENSOR AND SATELLITE BOXES
System B is provided with a Multi-Rack Flow Switch (MRFS). This is a control box that
monitors water level in the reservoirs and flow in water return line. This box sends out a
control signal to Satellite Control Boxes (SAT) that interlocks the pumps with:
-UV Light
-Heat Pump
-Ph Dosing
The MRFS box receives signals from two level sensors in Res B1. There is a low and
high level sensor. Water level in the sumps must be high enough to activate both
switches for the pumps to be started. This is indicated on the front of the box by a green
light that indicates water level has reached the start position. If the water level drops
below the low water level sensor the pump is deactivated along with all the equipment
powered through the Satellite control boxes.

The MRFS box also receives a signal from the water flow switch, in the return line to the
racks. If this flow drops below a certain rate, it also deactivates the pumps and all the
equipment powered through the SAT boxes. The flow sensor also reports to the Auto-
dialer, Alarm #3.

Each SAT box has a manual ON/OFF switch on the front of the panel. Inside the SAT
boxes is another Switch that can override the control signal coming from the MRFS box.

The MRFS box has an ON/OFF switch on the front of the panel. There is also a start
button on the panel. To start the pump, the green LED indicating adequate water levels
must be illuminated and ON/OFF switch switched to the on position. The momentary
start button can then be depressed to start the pump. As long as water level in the sump is
maintained and adequate flow is maintained, the pump, and all equipment powered
through SAT boxes will remained powered.

HEATING AND COOLING CONTROL
A heat pump can be managed to either Heat or chill system B. It is controlled by an
independent thermostat.

CONDUCTIVITY (SALINITY) MONITOR CONTROL
Conductivity is controlled by adding Fresh RO water to reduce the salinity of the system
water. The system conductivity will generally track upwards as water evaporates from
the system. The conductivity of the water in System B is monitored by the YSI 5200
controller. This controller powers a relay that powers a solenoid valve. Water from the
RO storage Tank (WSDS-1) is pumped through this solenoid valve and into System B to
reduce conductivity when necessary.
Conductivity was set at 52 mS. The high control range is 52.3 mS.
Dose time is 20 sec, the wait time is 2 minutes.

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PH MONITORING AND CONTROL
PH is controlled by adding buffer solution to the system water to increase the PH of the
system water. The system PH will generally track downwards as biofilter consumes
alkalinity from the system. The PH of the water in System B is monitored by the YSI
5200 controller. This controller powers a relay that powers a PH doser pump. Water
from the PH storage tank is pumped into System B to increase the PH when necessary.
The PH system was left disabled during installation. It can be enabled and programmed
at a later date.

WATER CHANGE
Water is pumped from the system through a solenoid valve to a floor drain to discharge a
certain amount of water each day. The solenoid valve is powered by same 24 volt control
signal going to the SAT Boxes. The signal passes through a Relay in the YSI that is
controlled by TIMER #1. This timer can be programmed to control the duration of the
water change. The discharge flow rate is approximately 1 GPM. The timer on System
Be was deactivated to minimize water usage prior to putting animals in the system.

YSI MONITOR
The YSI monitors system temperature, conductivity (salinity), pH, and dissolved O2.
The YSI controls Salinity and PH and the water change.
The general alarm from the YSI on System A is connected to the AutoDialer (Alarm #2).

There are 4 internal relays in the YSI. They are dedicated to the following processes:

Relay # Power Source Control Mechinism Control Parameter
1 MRFS (24v) SAT Box PH
2 Outlet (120v) Solenoid valve Conductivity
3 MRFS (24VDC) Solenoid Water Change
4 Autodialer ALM #4 Switch General Alarm

Timer #1 is programmed to Relay #3 for water change and left deactivated.

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