QED MP50 Manuel utilisateur
Part No. 95258 2-15-10
MP50
CONTROLLER/COMPRESSOR
MODEL
PATENT PENDING
O
U
asics
Manual
Instruction
P.O. Box 3726 Ann Arbor, MI 48106-3726 USA
1-800-624-2026 Fax (734) 995-1170
info@qedenv.com www.qedenv.com
MP50
Controller
Optional
MP30 Drawdown
Meter
Well
Cap
Tubing
Pump Air Supply
Pump Discharge
Well Wizard
Bladder
Pump
R
MP50 Basic Setup
Contents
Topic Page
Safety Warnings
Conventions and Diagrams
Introduction / Quick-Start
Turning the MP50 On
Opening Display
MicroPurge Mode
Using CPM
Sampling
Use with the MP30 Level Sensing Water Level Meter
ID Mode
User Time Set (MN) Mode
MP50 Battery
Troubleshooting
MP50 Specifications
QED Service Contacts
QED Warranty
Appendix 1 ID Data Table
1
1
4
7
6
7
8
8
10
11
14
15
16
17
18
19
20
21
Bladder Pump Operation in Low-Submergence Applications
Safety Warnings
1
Safety warnings
Diagrams and Conventions used in the Text
MP50 Panel Layout:
Compressed air - Use caution when working with compressed air or gas. Compressed gas
cylinders are under extreme pressure and can cause unrestrained hoses to whip about danger-
ously. Do not over pressurize your controller. Failure to operate the controller within the pres-
sure limits could result in failure. Read all operating instructions before operating the MP50
controller.
Warning - Do not disassemble the pneumatic pump while it is connected to a compressed gas
source. Dangerous pressures could cause injury.
Pressure
Gauge
Battery
Cover
Flow
Throttle
Connector for optional
MP30 Drawdown Control
MP50 Control
Keypad and
display
Discharge
cycle
indicator
Controller
To Pump
Connection
Compressor
Fan
Compressed
Gas Source
Connection
Battery
Connectors
Diagrams / Conventions
2
Diagrams And Conventions Used In The Text (Cont.)
MP50 Control Keys:
MODE
I I
CPM Button (also scroll for
item selects)
UP Button, faster pumping
(also increase item)
DOWN Button, slower
pumping (also decrease
item)
CYCLE Button
MODE Button (also battery
check)
PAUSE Button (also
manual sample)
MicroPurge Basics Controller
MP Micro Purge
ID ID Time Set MN Manual Time Set
LVL LevelShutoff
CYCLE
I I
MODE
CPM/Value Flow/Value Flow/Value
Hold/Sample
/Cycle
Start/Stop ID/MN/MP/
Battery
Mode CPM
ID
Time Refill
Discharge
00.1
103
10.0
MP CPM4 >05.0
DE
CYCLE
In MP Mode
Cycle Per Minute
key - Changes
cycle per minute Scrolls cursor
Faster key -
Speeds up flow
Slower key -
Slows down
flow
Pause key -
Pauses flow for
sampling
Mode key -Selects
the operation
mode. Also battery
check
Cycle key -Selects
Start and Stop of
pump cycling
Changes a value
at the cursor
location
Changes a value
at the cursor
location
In Other Modes
Diagrams / Conventions
Diagrams And Conventions Used In The Text (Cont.)
MP50 Display:
00.1
MP CPM4 >05.0
103 10.0 Discharge time
setting in
seconds
Indicates if
pump is
Refilling or
Discharging
Cycles per
minute setting
The mode the
controller is in
Refill time
setting in
seconds
Time
remaining
in the cycle ID for time
settings
Abbreviations:
CPM
MP
ID
HELD
MN
BAT
LVL
>
Cycles Per Minute
MicroPurge Mode
ID Time Set Mode
Held In A Cycle
Manual Time Set Mode
Battery
Level Pause
Indicates Refill Or Discharge Cycle
3
Introduction / Quick Start
4
Introduction / Quick Start
Insert Batteries: Remove the battery cover on the top of the MP50. Insert 3, AAalkaline bat-
teries into the battery holder and carefully replace the holder in the carrier. Replace the
battery cover and tighten the 4 screws. Batteries should last for about 6-8 weeks of typical
full-time field use. If the MP50 will be stored longer than about 3 months, the alkaline batteries
should be removed to prevent leakage.
Introduction: The MP50 Micro Purge Basics Controller/Compressor is used to operate QED
Well Wizard™ bladder sampling pumps to purge and sample ground water. The MP50 has
specific design features to make MicroPurge ™ sampling easier. These features include:
MicroPurge Mode Operation Simple Increase / Decrease keys allow you to easily set
the flow rate you need for each well.
ID Time Set Mode Operation Quickly recalls pre-determined settings for each well by
specifying a 3-digit ID.
Level Delay Interface The controller plugs into the optional MP30 MicroPurge Draw-
down / Water Level Meter to provide direct feedback of well drawdown and to pause
pump operation until the level recovers.
The optional MP30 MicroPurge Drawdown / Water Level Meter plugs into the MP50 to pro-
vide water level feedback. The MP30 uses a standard conductivity probe to detect the
ground water surface and a marked tape allowing the user to measure the depth. When the
meter is set in MicroPurge mode, the probe is lowered a specific distance below the static
water level and fixed in this position. During well sampling if the water level drops below
the user-set probe position, the MP50 is paused which prevents further drawdown by the
pump. Once the level recovers the MP50 begins pump operation again, starting in the pump
refill cycle. Use of the MP50 with the MP30 is detailed later in this manual.
Introduction / Quick Start
5
Opening the MP50 case turns power ON.
Note: It may take up to 20 seconds for the unit to power up.
Note: An option to use an external air source is built into the MP50. To
use external air source (rather than the built-in air compressor) simply
connect the air source to the “Air In” port.
Select desired Cycles Per Minute (CPM) with (default value is 4
CPM, lower CPM for deeper wells, higher CPM possible with shallow
wells- .
Turn throttle to set depth on gauge to 10-20 feet deeper than the pump
location in the well.
See Page 6)
Cycle
I I
Press to START pumping.
When water discharge begins, adjust throttle until a slow, steady flow-
stream is achieved.
Press keys to set the desired purge flow rate.
To collect samples, continue purge flow, or use key to directly
control sample flow and pause.
Quick Start: Attach Red Positive (+) cable clamp to the Positive (+)
terminal of battery. Attach Black Negative (-) cable clamp to the
Negative (-) terminal of battery. Connect the light blue coiled pump hose
to the fitting labeled “AIR OUT” on the MP50. Turn the controller throttle
until the gauge reads the approximate depth of the sample pump (See
Page 6) Follow instructions on the battery panel:
Note: A moisture vent is provided and located on the side of the MP50
case. Excessive accumulation of moisture can impede proper operation
of the MP50. During cold and/or damp weather conditions, it is
recommended that the moisture vent be pushed at frequent intervals
during operation of the MP50.
6
Bladder Pump Operation In Low-Submergence
QED sampling bladder pumps fill by hydrostatic pressure. As the inside of the pump's bladder
fills with water, the bladder expands. This filling and expanding of the bladder is referred to as
the "refill" half of the pump cycle. When air pressure is applied to the outside of the bladder, the
bladder is squeezed, forcing the water up the discharge tubing. This is referred to as the
"discharge" half of the pump cycle. In low-submergence applications, there is less water pres-
sure available to expand the bladder during the refill.
This can result in a smaller volume of water being pumped with each pump cycle because the
bladder may not fully expand.
As a result of the lower volume per cycle, more time will be required to bring the water to the
surface. An easy way to verify that the pump is working, prior to the water reaching the surface,
is to submerge the pump's discharge tubing in a beaker of water. Each time the pump goes into
discharge, air in the discharge tubing, which is displaced as the water level in the tubing rises,
can be seen as air bubbles coming from the end of the tubing. To optimize the pumping rate,
the refill time should be set long enough to achieve the maximum volume of air bubbles on
each pump cycle, and the discharge time should be set long enough to ensure that the air has
stopped bubbling out of the tube before the pump controller switches back into refill.
In low submergence wells, it is critical that the air pressure driving the pump not be more
than 10-15psi higher than the minimum requirement of 0.42psi per foot of pump depth.
Higher pressures than this can cause the bladder to be squeezed too tightly during discharge,
a condition which can prevent the bladder from expanding during refill. To avoid this condition
in deeper wells, it is suggested that the air pressure applied to the pump be gradually increased
as the water level in the pump's discharge tubing rises. It is recommended that the air pressure
be set at 15 psi initially, and slowly increased in increments of 10 psi as needed until the water
reaches the surface. Submerging the end of the discharge tubing under water as described
above will verify whether the air pressure is set high enough.
.
Bladder Pump Operation In Low-Submergence Applications
Pump submergence is defined as the height of the static water column above the top of the
pump. In wells in which this water column height is 5 feet or less, the pump is considered to be
in a low-submergence application.
Table des matières
Autres manuels QED Contrôleurs
