ITC Dositec MP User manual

DOSITEC
ENGLISH

SAFETY RULES
To avoid personal or environmental damages and to guarantee a proper
operation of the equipment, the staff in charge of the installation, set up and
maintenance of the equipment must follow the instructions of this manual,
specially recommendations and warnings explicitly detailed. In additon, specific
instructions for the chemical products to be dosed should be followed.
INDEX
1.- GENERAL DESCRIPTION 4
2.- SHIPMENT 4
3.- TECHNICAL FEATURES 5
4.- OPERATION 6
5.- INSTALLATION 7
Generalities 7
Hydraulic connection 7
Electric conection 8
6.- START UP 10
DOSITEC - MP 11
DOSITEC - MD 12
DOSITEC - mA 13
DOSITEC - Q 16
DOSITEC - PRC
19
DOSITEC - MF
26
7.- MAINTENANCE
List of parts
34
C.E. APPROVAL DECLARATION 39
WARRANTY 39
36

19
26
4
1.- GENERAL DESCRIPTION
The dosing pumps DOSITEC are heavy duty, high precission, electric
diaphragm pumps for dosing liquid products.
DOSITEC models:
DOSITEC -MP: Manual Regulation from 0 to100% by potentiometer
DOSITEC -MD: Manual Regulation from 0 to100% by keyboard
DOSITEC - Q: Proportional regulation
DOSITEC - mA: Analogic regulation by a current signal
DOSITEC - PRC: Control PH or ORP(Redox)
DOSITEC - MF: Multifuntion (Manual flow regulation / proportinonal / Analogical
4-20mA / with timer)
DOSITEC dosing pumps are manufactured with materials that can resist most
chemicals products, even acids. They are designed for all sorts of processes
where it is necessary to dose a product into a hydraulic network, such as: food,
textile, chemical industry, water treatments, etc. (See materials in Technical
Features). In case there is any doubt about compatibility of materials with the
products to be used please contact ITC S.L. Technical Service.
The metering pump has been designed to feed liquids with capacities from 0 to
15 l/h and pressures from 0 to 10 bar. They also include a conexion for a level
switch..
2.- SHIPMENT
The original packaging is prepared to transport and storage the goods, if it is
done in dry, aired spaces and far from sources of heat, always keeping the
pump in vertical position.
Inside the pack it is included:
Dosing pump.
Semirigid PE hose, white, lenght 2m.
Flexible PVC hose transparent crystal type, lenght 2m.
Injection valve 3/8” BSP-M
Filter
Manual of instructions

5
3.- TECHNICAL FEATURES
Maximum suction high: 2 m
Minimum injection pressure: 0,5 Bar
• IP 65 protection.
• Ambient temperature temperature: 5-40 ºC
• Standard power supply: 230 V (+/-10%) a.c.50 / 60 Hz single phase.
• Optional power supply:120 V a.c. 50 / 60 Hz single phase. / 12V d.c.
• Liquid temperature temperature: 5-40 ºC
LIQUID ENDS MATERIALS:
DIAPHRAGM: PTFE.
PUMP HEAD: PVDF
NIPPLES: PVDF.
VÁLVES BODY: PVDF
VALVES BALL: Ceramic
O-RINGS: FPM ( available in EPDM)
SUCTION HOSE: PVC flexible.
DISCHARGE HOSE : Polyethylene.
FILTER: Polypropylene
FLOW - PRESSURE
bar2 64 8 10
l/h
10
6
2
14
12 1614 18 20
12
8
4
16
1 53 7 9 11 1513 17 19
9 l/h@10 bar
6 l/h@ 7 bar
2 l/h@ 20 bar
2,5 l/h@ 10 bar
Flow
l/h
2.5
2
6
9
2.5
6
C/min
120
120
120
120
120
120
Pressure
Bar
10
20
7
10
10
7
Stroke
length mm
0.8
1.0
1.0
1.4
0.8
1.0
Power
Watts
37 (0.16A)
58 (0.30A)
37 (0.16A)
58 (0.30A)
24 (2 A)
24 (2 A)
Power
supply Volts
230V AC
230V AC
230V AC
230V AC
12V DC
12V DC
Weight
Kg
3
3.8
3
3.8
3
3
Volum
ml/cycle
0.35
0.28
0.83
1.25
0.35
0.83

130
001
5
172
4.- OPERATION
6
The metering pump is activated by a PTFE diaphragm mounted on a piston of
an electromagnet.
When the piston of the electromagnet is attracted, a pressure is produced in
the pump body with an expulsion of liquid from the discharge valve.
Once the electric impulse is finished a spring brings the piston back to the
initial position, with a recall of liquid through the suction valve.
As the operation is simple the pump does not need lubrication, therefore
maintenance is reduced almost to zero.
The materials used for the construction of the pump make it particularly
suitable for aggressive products.
DIMENSIONS
190
210

5.- INSTALLATION
GENERAL
7
Install the pump in a dry place and well away from sources of heat and, in any
case, at environmental temperatures not exceeding 40°C. The minimum
operating temperature depends on the liquid to be pumped,bearing in mind that
it must always remain in a liquid state.
Place the pump vertically over a rigid surface totally horizontal.
HYDRAULIC CONNECTION
Properly design either in the suction and injection pipe is required, avoiding long
lenght and bending pipes as much as possible.
1
6
4
3
2
1
3
2
4
5
6
1
2
3
4
5
6
PRIMING VALVE INJECTION VALVE
SUCTION PIPE COUNTER-PRESSURE VALVE
SUCTION FILTER INJECTION PIPE
abcd

ELECTRIC CONNECTION
The electric protection of the motor must be installed and adjusted
following its nominal intensity (overloaded switch disjuntor).
A disconnection dispositive must be installed in case of emergency.
The equipment must be protected to avoid untimely sudden starts.
8
Install a safety valve in a derivation as near as possible
from the pump , in order to protect it and the whole
installation from possible over-pressures. This derivation
Must derive the liquid to a safe place.
To prime the pump, first connect the priming
hose to the priming valve and drive the
other side of the hose to a safety place to
pour the air mixed with product.
Open the priming valve and start the pump
at maximum flow until having only liquid in
the priming outlet.
PRIMING
VALVE
PRIMING
HOSE
Select the most appropiate injection point in
the pipe to inject the product, and place
there a 3/8” part to connect the Injection
valve.
INJECTION
HOSE
3/8”

9
L1 (BLUE)
L2 (BROWN)
YELLOW /GREEN
230V AC
MD Q mA PRC
1
23
4
A
B
C
D
E
1
23
4
1
23
4
1
23
4
1-
2-
3- Pulse input (+)
4- Pulse input (-)
1-
2-
3- Level switch
4- Level switch
1-Output relay.AL3.NO
2-
3-Output relay (Com)
4-
1-
2-
3- Signal mA (+)
4- Signal mA (-)
1- Alarm relay (NO)
2- Alarm relay (NC)
3- Alarm relay (Com)
4-
Connector BNC
pH sensor
ORP (redox) sensor
1-
2-
3- Level switch
4- Level switch
1-
2-
3- Level switch
4- Level switch
1- Output mA (+)
2- Output mA (-)
3- Level switch
4- Level switch
ABCD
E
MF
1-
2-
3- Ground
4- Reset
1- Alarm relay (NO)
2- Alarm relay (NC)
3- Alarm relay (Com)
4-
1- Flow sensor.
2- Flow sensor.
3- Level switch
4- Level switchl
1
2- Signal input mA (-)
3- Pulse input (+)
4- Pulse input (-)
- Signal input mA (+)
Electrical connection of the dosing pump with electric loads (motors, pumps,
electrovalves...)
To avoid damaging the dosing pump (DP) at the disconnection of other pumps or
electric motors (M), the following diagrams must be used:
Option 1 Option 2
DP DP

10
6.- START UP AND REGULATION
BASE: Check that the pump is properly secured to the base.
CHECKING THE HYDRAULIC CIRCUIT: Check that all valves are
open and the liquid from priming valves are derived correctly
CHECKING OF PUMP: Visually/hearing check the proper operation of
the pump.
OVER-PRESSURE PROTECTION: Adjust the safety valve to the
correct pressure to protect the installation without exceeding the pump
nominal pressure.
ELECTRIC PROTECTION: Ajust the electric protection to the pump
nominal current.
Replace crystal suction hose with a polyethilene discharge hose. Use
PTFE hose for the suction and discharge.
Previously, take away from inside the pump all water present (if water
is mixed with sulphuric acid, an overtemperature is caused, damaging
the pump.
SULPHURIC ACID DOSIFICATION

11
DOSITEC MP
MANUAL REGULATION DOSING PUMP
Flow regulated with a potentiometer, it control the impulsion frequency. Adjust of
the frequency from 0 to 100%. Special flow regulation at 0-20% frequencies.
1342
5
6
7
8
9
1 START
2 STOP
3 Regulation at 20% maximum
4 Regulation at 100% maximum
5 Adjust of the potentiometer in percentage (0-100%)
6 Power LED
7 Injection LED
8 20% regulation LED
9 100% regulation LED
ACCESSORIES
- 1 flexible transparent PVC suction hose 2m
- 1 semirigid white PE injection hose 2m
- 1 injection valve 3/8”
- 1 filter
- 1 user manual
- 1 flexible transparent PVC priming hose.

12
DOSITEC MD
DIGITAL DOSING PUMP WITH MANUAL REGULATION
Flow set with keyboard, from 0 - 100%.
231
4
5
6
1 Increase value
2 Decrease value
3 START /STOP
4 Display
5 Power LED
6 Injection LED
ACCESSORIES
- 1 flexible transparent PVC suction hose 2m
- 1 semirigid white PE injection hose 2m
- 1 injection valve 3/8”
- 1 filter
- 1 user manual
- 1 flexible transparent PVC priming hose.
LEVEL ALARM
Pump stops, red LED is on when detects no product for 5 seconds. Level sensor
is required.

13
DOSITEC mA
ANALOGIC 4-20mA DOSING PUMP
Dosing pump, flow regulated through a 4-20mA external signal.
6237
5
13
14
11
1
1 Displays mA or pulse
2 Increase value
3 Decrease value
4 Select function
5 Enter
6 Pulse LED display.
7 Manual selection LED
8 SET POINT 2 / STOP LED
9 SET POINT 1 / STOP LED
10 Meter LED
11 mA LED display
12 Display
13 Injection LED signal
14 Level alarm LED
ACCESSORIES
- 1 flexible transparent PVC suction hose 2m
- 1 semirigid white PE injection hose 2m
- 1 injection valve 3/8”
- 1 filter
- 1 user manual
- 1 flexible transparent PVC priming hose.
12 10
4 8 9

14
LEVEL ALARM (FAO)
Pump stops, displays FAO, and the alarm LED is on when detecting no product for
five seconds. A level sensor is required.
POWER ON THE PUMP
PRIMING
Select MANUAL function and select the frequency to prime the pump.
F to select MANUAL
+/- to change the injection/min ( a 75% of the maximum frequency is
recommended)
The pump starts with METER, pulse per minute is displayed.
Use mA / pulse, to display input signal / injections per minute.
PROGRAMMING
SET POINT 1
Sets the input signal value for the minimum flow, and the frecuency of the
injections.
F to select SET1/STOP, show the frecuency of the injections set.
+/- to change the frecuency of the injections (puls/min), for minimum flow (000 for
stop)
mA/pulse to select mA.
+/- to change the value of the input signal (mA) for the minimum flow.
Confirm with ENT.
F to select SET POINT 2.

15
SET POINT 2
Sets the value of the input signal for the maximum flow, and the frecuency of the
injections.
F to select SET2/STOP, shows the frecuency of the injections.
+/- to change the frecuency of the injections (pulse/min), for maximum flow.
mA/pulse to select mA.
+/- to change the value of the input signal (mA) for the maximum flow.
Confirm with ENT.
Direct mode
The pump works with an input signal of a higher value than the minimum frecuency
(SET1), increasing the frecuency of the injections (flow), proportionally to the
increase of the signal, to the maximum frecuency of the injections (SET2).
Reverse mode
Increasing the value of the input signal means a reduction of the flow. Maximum
value of the input signal in mA at SET1, and the minimum value in SET2.
NOTE: A higher frecuency at SET1 than at SET2 is not allowed, so the reverse
mode can only be set setting a higher value of the signal (mA) at SET1.
Example 1:
Dositec mA, Flow 10 l/h, Pressure 5 Bar, Signal 4-20 mA
4 mA = 0 l/h = 0%
12 mA = 5 l/h = 50%
20 mA = 10 l/h =100%
Example 2:
Dositec mA, Flow 10 l/h, Pressure 5 Bar, Signal 4-20mA programmed in Reverse mode.
4 mA = 10 l/h = 100%
12 mA = 5 l/h = 50%
20 mA = 0 l/h = 0%

16
FF
START
STOP
1XN(M)
1XN NN
1:N
Q
MAN
100%
DOSITEC Q
PROPORTIONAL DOSING PUMP
Dosing pump with a water counter input. Sets a proportion between the pulses
from the water counter and the injections of the dosing pump.
1342
5
6
7
8
9
1 Decrease value
2 Increase value
3 Select function
4 START / STOP
5 Display
6 Manual LED
7 Injection LED
8 1xN LED 192.168.240.201:5
9 1xN(M) LED
10 1:N LED
ACCESSORIES
- 1 flexible transparent PVC suction hose 2m
- 1 semirigid white PE injection hose 2m
- 1 injection valve 3/8”
- 1 filter
- 1 user manual
- 1 flexible transparent PVC priming hose.
10

17
MAN
1:N
1XN
1XN MODE
FF
LEVEL ALARM (AL1)
Pump stops, displays AL1 and the alarm LED is on when detecting no product for
five seconds. A level sensor is required.
PROGRAMMING
MANUAL MODE
F to select function.
1)Select injection frequency with .
2)Confirm with START/STOP.
3)START/STOP to start.
PROPORTIONAL MODE
F to select function.
1)Set proportion value with
2)Confirm with START/STOP.
3)START/STOP to start
Note: N max. = 999.
1XN MODE
.
For each pulse received by the water counter, injects N times. Frecuency of the
injections is set in manual mode.
Example:
- Pump in 1XN mode.
- Value N=20
1XN(M) MODE
1XN(M)
1:N MODE
FF

18
Water counter gives a pulse to the pump. The pump dosifies 20 injection strokes,
while the pump is dosing pulses from water counter are ignored. Once the pump
has finished 20 strokes, it waits for another pulse of the water counter to start
again.
1XN (M) MODE
Example:
Pump receives a pulse and injects "N" times at the maximum frecuency
(120pulse/min).
When it receives a second pulse, time between both pulses is used to calculate
the injection frecuency so injection strokes are spaced in time, the limit is the
maximum frecuency.
When the pending injection cycles are higher than 4, AL3 is displayed, pump
continues dosifying, but the pending cycles are missed.
1:N MODE
The pump needs to receive N pulses to inject once. N is set for the user.
Example:
- Pump set mode 1:N
- Value: N=20
After receiving 20 pulses of the watermeter, the pump injects once.
The same as 1xN mode, but injection frequency is adapted to the time between
each pulse received. If the pump receives pulses while it is dosing, injection
frecuency is increased if possible.
Overpulse Alarm (AL3)
NOTE: 70 pulses/second is the maximum frecuency accepted from the
watercounter.
PRIMING
Pump fast priming, press at the same time .

19
DOSITEC PRC
PH, ORP (REDOX) DOSING PUMP
Microcontrolled dosing pump for PH or ORP (redox) control.
1342
6
7
8
9
1 Decrease value
2 Increase value
3 ESCAPE
4 On/Off
5 ENTER
6 Display
7 Power LED
8 Injection LED
9 Alarm LED
ACCESSORIES
- 1 flexible transparent PVC suction hose 2m
- 1 semirigid white PE injection hose 2m
- 1 injection valve 3/8”
- 1 filter
- 1 user manual
- 1 flexible transparent PVC priming hose.
5

20
DEFAULT PARAMETERS
Measure selection pH
Setpoint 7.2
Hysteresis 0.1
Control ácido
ON/OFF - Proporcional control ON/OFF
Proportional control start value Set point+1pH
First point calibration procedure ---
Second point calibration procedure ---
Lowest Alarm value 0.00
Highest Alarm value 14.00
Over-dosing alarm value 99:59 (h:m)
Menu: BASE / FULL BASE
Password Disabled
Delay powering on 00:03 (m:s)
Delay exit calibration menu 05:00 (m:s)
Calibration 4 mA output 4 mA
Calibration 20 mA output 20 mA
TYPICAL CHARACTERISTICS
Room temperature 0-40ºC
Max. Current relay output 6A (resistive load)
1A (inductive load)
4-20mA output 4-20mA (dynamic 0-500Ohm)
pH measure 0-14 (0.01 pH)
ORP (mV) measure -1000 - +1400 (+/-1mV)