IPS Controllers M790 Manuel utilisateur
M790 pH/ORP Controller
Owner’s
Manual
Table of Contents
I. Introducon page 2
A. Water Chemistry page 2
B. Safety page 3
C. System Components page 4
D. Specicaons page 7
E. Controller Panel Descripons page 8
F. Electrical Descripons page 10
II. Installaon page 11
A. Setup page 11
B. Tools page 11
C. Procedure page 11
III. Operaon page 14
A. Startup and Shutdown page 14
B. Modes and Adjustments page 15
C. Maintenance page 21
IV. Troubleshoong page 23
V. Warranty page 26
1
I. Introducon
A. Water Chemistry
Water chemistry is a complex science that contains many variables.
These variables not only aect the water environment itself, but
they can have adverse eects on your equipment as well as your
health. These are only some of the factors which we follow closely
to ensure the most healthy water interacons:
pH is the measurement of the acidity or basicity in an aqueous
soluon. A measurement below 7 is considered acid, while a
measurement above 7 is base or alkaline. It is a signicant factor
in determining the water quality as it aects sanizer levels, water
color, and human reacon to the water.
ORP (Oxidaon Reducon Potenal) is the measurement of the
oxidizing capacity present in water. ORP cannot be fooled by the
eects of pH, total dissolved solids (TDS), stabilizers, and non-chlo-
rine oxidizers. A typical ORP sensor measures Hypochlorous Acid
(HOCI), which is the more eecve component of free chlorine. A
higher ORP reading equates to the sanizer working more eec-
vely.
Water balance is comprised of pH, calcium hardness, total alkalin-
ity, temperature, and TDS. When water is balanced, the Langelier
saturaon index is 0. Values above +0.3 lead to scaling and cloudy
water, while values below -0.3 can cause corrosion of pool equip-
ment and surfaces. If the water balance is not xed in a mely
manner, secondary eects can lead to rapidly declining water con-
dions that can aect the health of the water occupants.
pH and ORP work conversely to one another, and are aected by
other factors such as temperature and TDS’ that can increase the
negave impacts of unbalanced water.
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M790 pH/ORP Controller Owner’s Manual
B. IMPORTANT SAFETY INSTRUCTIONS
1. READ AND FOLLOW ALL
INSTRUCTIONS.
2. Risk of electric shock: Connect the controller to a dedicated
ground-fault circuit interrupter (GFCI) circuit breaker.
3. Disconnect power before servicing the controller.
4. Inspect all power cords frequently. Any damaged cords should
be replaced immediately to reduce the risk of injury by shock.
5. Always maintain a record of manual water chemistry readings
using an accurate test kit.
6. WARNING — To reduce the risk of injury, do not
permit children to use this product unless they are closely
supervised at all mes.
7. Danger — Risk of injury.
a. Replace damaged cord immediately.
b. Do not bury cord.
c. Connect to a grounded, grounding type receptacle only.
8. WARNING — Risk of electric shock. Install at least
5 feet (1.5m) from inside wall of water enclosure using non-
metallic
plumbing.
9. Operaon of this controller without a funconing ow-switch
will void the NSF Cercaon.
10. WARNING — Do not install this controller where it is
accessible to the public.
11. SAVE THESE INSTRUCTIONS.
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M790 pH/ORP Controller Owner’s Manual
C. System Components
1. IPS M790 pH/ORP Controller
a. Allows automac monitoring of pH and ORP levels through
a simple, user-friendly interface, resulng in easier
management of water balance in swimming pools, spas, or
circulang water environments.
b. Can be easily installed into your exisng pool environment
and equipment, or can be customized to your needs.
c. Monitors and displays the pH and ORP levels using LEDs
and digital readouts on the front panel.
In addion, four separate funcon buons allow simple
pushbuon control of these individual parameters:
1) Mode - Auto, pH Standby (programming), ORP Standby
(programming),
2) Set Level - pH or ORP level to be maintained,
3) Dose Timer - Timed or connuous feed modes,
4) pH Cal - pH calibraon for variaon in pH sensors.
d. If the pH level falls below (base feed) or rises above (acid
feed) the preset level, then the controller will acvate the
chemical feeder unl the preset level is reached.
e. If the ORP (sanizer) levels reach the preset set level, then
the controller will acvate the chemical feeder unl the
preset set level is reached.
2. Flow Cell with Switch
a. An injecon-molded ow cell with integrated ow-switch
houses the pH and ORP sensors, and partners with the
M790 controller to monitor the pH and ORP levels in the
water.
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M790 pH/ORP Controller Owner’s Manual
b. The ow switch veries that water is owing during a feed
cycle, and sends the controller instrucons to deacvate
the feed if water is not owing.
c. Operaon of this controller without a funconing ow-
switch will void the NSF Cercaon. Rounely check that
the ow-switch is funconing by closing the le valve on
the boom of the ow-cell (ow light should turn o).
3. pH and ORP Sensors
a. pH Sensor – standard (Use only IPS Controllers part # SXPH
to maintain NSF Cercaon)
b. ORP Planum Sensor – standard (Use only IPS Controllers
part # SXORP to maintain NSF Cercaon)
c. ORP Gold Sensor - for use with Salt Chlorine systems
(Use only IPS Controllers part # SXORP-G to maintain NSF
Cercaon)
4. Fings – for tapping installaon of ow cell input/output
5. In-line Filter – installed prior to ow cell to protect switch and
sensor
6. Tubing – 25 feet of 3/8” for providing ltered water to and from
the ow cell
7. Feeders – peristalc pumps for acid for controlling pH, and
chlorine for controlling ORP (purchased separately)
8. Mounng Board – ABS plasc with mounng holes and stain-
less hardware (16” x 12” standard, 24” x 19” oponal)
9. Check Valve/Injector – qty. 1 each (for use with oponal pumps)
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M790 pH/ORP Controller Owner’s Manual
Figure 1: This is a typical installaon using IPS’ system package, which consists of an
M790 pH/ORP Controller, ow cell with switch, and two pumps mounted on the large board.
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M790 pH/ORP Controller Owner’s Manual
* not shown
Chemical
Pump
Chemical
Pump
Sucon Line
FLOW
FLOW Effluent
(to Sucon)
Waste
Influent (to Return Line)
Filter
Pump
FLOW
FLOW
FLOW
Sample
Typical Installaon
Note: All chemical must be injected downstream from
the heater and flowcell.
Main Drain and Skimmer
Pressure Differenal
FLOW
Return Line
FC100G
FLSW
SXPH
SXORP
SXORP-G
Valve
Jaco Fing 1/2”
Jaco Fing 1/4”
38tubing
Filter
1
2
3
4
5*
6
7
8
9
10
Flow Cell, Complete
Flow Switch Only
pH Sensor
ORP Sensor (Standard
Planum Tip)
ORP Sensor (Gold-Tip
for Salt Pools)
2-way Flow Cell Valve
1/2” Jaco fing for
sensors
1/4” Jaco fing for
tubing
3/8” tubing for
plumbing to/from
Flow Cell
Filter Strainer
IPS Parts List
Flowcell (1)
Filter
(10)
pH sensor (3)
ORP
Sensor
(4)
Flow
Switch
(2) 1/2” Jaco Fing (7)
38tubing (9)
Valve (6)
1/4” Jaco Fing
(7)
Controller
D. Specicaons
Enclosure: 7.5”L x 4.75”W x 2.75”D (Note: Mounng board
dimensions are 16”L x 12”W x 0.25”D)
Electrical Input/Output: 120 VAC, 50 - 60 Hz
pH Set Level: 7.0 to 8.0
ORP Set Level: 400 mV to 900 mV
Dose Timer: O, Connuous, or Timed cycle
High Alert: pH default of 8.0, ORP default of 900
Low Alert: pH default of 7.0, ORP default of 100
Readout: Funcon LED and numerical digital displays
Alarm: Red alert LEDs
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M790 pH/ORP Controller Owner’s Manual
E. Controller Panel Descripons
1. Digital Displays and Funcon LEDs
a. pH
1. Alert - red LED
2. Dose - green LED
b. ORP
1. Alert - red LED
2. Dose - yellow LED
Figure 2: M790 Controller Components Connecons
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M790 pH/ORP Controller Owner’s Manual
digital display
pushbutton
LEDs
Controller Communication
ORP
pH
2. Mode - pushbuon adjustments
a. Auto - red LED
b. pH standby - green LED
c. ORP standby - yellow LED
d. OFF mode - In standby, press and hold Mode buon for 3
seconds to turn controller o.
3. Flow - green LED
4. Set Level – pushbuon adjustments
5. Dose Timer – pushbuon adjustments
6. pH Cal – pushbuon adjustments
7. Electrical Connecons (peripherals)
a. pH output (le receptacle) - max. 5 amps @ 120 VAC
b. ORP output (right receptable) - max. 5 amps @ 120 VAC
c. AC power - 120 VAC, 50-60 Hz
d. Flow - from ow cell
e. pH sensor - BNC connecon
f. ORP sensor - BNC connecon
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M790 pH/ORP Controller Owner’s Manual
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