Grundfos DID Series User manual

DID
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Other languages
http://net.grundfos.com/qr/i/99037650

English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions describe Grundfos
DID (Dosing Instrumentation Digital).
Sections 1-6 give the information necessary to be able to unpack,
install and start up the product in a safe way.
Sections 7-13 give important information about the product, as
well as information on service, fault finding and disposal of the
product.
CONTENTS
Page
1. General information
1.1 Target group
1.1.1 Qualification and training
The persons responsible for installation, startup and service must
be appropriately qualified for these tasks.
If the persons do not have the necessary knowledge, training and
instruction must be given. If necessary, training can be performed
by the manufacturer or supplier on request.
1.1.2 Obligations of the operating company
• Observe the local safety regulations.
• Instruct the operating persons.
• Provide the stipulated safety equipment and personal
protective equipment.
• Arrange regular maintenance.
1.1.3 Obligations of the user
• Read this manual thoroughly before taking the product into
operation.
• Observe the recognised health and safety regulations as well
as the accident prevention regulations.
• Wear protective equipment in accordance with national health
and safety regulations when working on the system and
handling chemicals.
1.2 Symbols used in this document
1. General information 2
1.1 Target group 2
1.2 Symbols used in this document 2
1.3 Symbols on the product 3
2. Safety instructions 3
3. Receiving the product 3
3.1 Inspecting the product 3
3.2 Transporting the product 3
4. Installation 4
4.1 Installation location 4
4.2 Installation of the DID 4
4.3 Hydraulic connection 4
4.4 Installing the sensors 4
4.5 Checking the tightness 4
5. Starting up the product 5
5.1 Initial startup 5
6. Electrical connection 5
6.1 Terminal connection 5
6.2 Connecting the sensors to the CU 382 control unit 6
6.3 Connecting the valve for automatic cleaning 6
6.4 Connecting further inputs and outputs 6
6.5 Connecting the CU 382 to the power supply 6
6.6 Start-up of the operating software 6
6.7 Sensor initialisation 6
7. Storing and handling the product 6
8. Product introduction 7
8.1 Product description 7
8.2 Intended use 7
8.3 Functional principle 7
8.4 Identification 8
9. Operation 9
9.1 Operating elements 9
9.2 Display screen 9
9.3 Software overview 10
9.4 General setup 12
9.5 Parameter setup 16
9.6 Controller setup 21
9.7 USB menu / Data transfer 24
10. Maintenance 25
10.1 Cleaning 25
10.2 Functional check 26
11. Fault finding 27
12. Technical data 28
12.1 Hydraulic specifications of DID 28
12.2 CU 382 control unit 28
12.3 Weights 31
12.4 Dimensions 31
13. Disposal 32
Read this document before installing the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
DANGER
Indicates a hazardous situation which, if not avoided,
will result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.

English (GB)
3
1.3 Symbols on the product
2. Safety instructions
3. Receiving the product
3.1 Inspecting the product
• Check the received consignment for completeness.
• Check the DID for damage.
• Install as soon as possible after unpacking.
• Do not install or connect damaged products.
3.2 Transporting the product
• Before transporting the DID, empty all pipes, hoses and flow
cells, remove the sensors and pack them separately.
• Observe the permissible ambient conditions. See section
12. Technical data.
• Transport the DID carefully, do not drop. Do not expose the
DID to strong impact, mechanical loads or vibrations.
• Keep the DID away from corrosive substances, vapours of
organic solvents, nuclear radiation and strong electromagnetic
radiation.
• Use the original packaging or equivalent to protect the DID
during transport.
Label Description
In case of problems, call the
Grundfos Service Hotline.
Scanning the QR code forwards
you to the Grundfos support site.
For more information: Scanning
the QR code forwards you to the
Grundfos Product Center.
Operating temperature:
0.1 °C to 45 °C
Protect from freezing.
Protect from direct sunlight.
Read the installation and
operating instructions before
installing and operating the DID.
Avoid drying-out of the sensors.
The sensors must always be
immersed in water.
Avoid siphon effect.
Use a vented outlet or a
pressure-loading valve.
Avoid power loss of the sensors
that are equipped with
electrolyte and membrane cap.
Sensors equipped with
electrolyte and membrane cap
must remain powered.
The maximum pressure
permitted inside the flow cell is
0.5 bar. The inlet pressure is
limited by the flow restrictor. The
operator must make sure that no
counterpressure is on the outlet.
Before taking a sample for
calibration, flush the sampling
point 3-4 times with
approximately 10 ml each time.
Maximum inlet pressure: 3 bar
Minimum flow rate: 0.5 litres per
minute
WARNING
Electric shock
- Switch off the power supply before connecting the
power supply cable and relay contacts.
- Do not dismantle the control unit.
- Installation and connection of the device and the
associated supplementary components must only
be carried out by qualified persons.
- Maintenance and repair must only be carried out
by qualified persons.
- Observe the local safety regulations.
WARNING
Toxic material
- Parts of the DID can be contaminated with
dangerous chemicals or pathogenic germs.
- If the DID has been in contact with dangerous
chemicals or pathogenic germs, wear protective
clothing and take all necessary precautions to
prevent endangering your health when installing or
dismantling the DID.
Modification of the DID is strictly prohibited.
Label Description

English (GB)
4
4. Installation
4.1 Installation location
Correct installation is important for proper functioning of the DID.
• Make the DID easily accessible for all tasks.
• Provide sufficient space for all components of the DID.
• Avoid external interferences, such as electric and electro-
magnetic interferences by leakage current, earth fault of
pumps, electric motors, high voltage currents.
• Protect the DID from direct sunlight and rain.
• Provide a reliable power supply for the control unit.
See also section 12. Technical data.
4.2 Installation of the DID
DID with flow cell
All parts of the DID with flow cell are assembled on a backplate
with pre-drilled holes for quick and easy installation.
• Use spacers (min. 10 mm) for installation of the DID with flow
cell on a flat wall.
See also sections 8. Product introduction and 12.4 Dimensions.
DID with sensor for tank immersion
The CU 382 control unit of the DID with sensor for tank immersion
can be mounted directly on a wall. See also sections 8. Product
introduction and 12.4 Dimensions.
4.3 Hydraulic connection
See also the labels on the backplate as well as the section
12. Technical data.
The maximum flow through the flow cell of the DID is limited by
the integrated flow restrictor.
Use a vented outlet or a pressure-loading valve to avoid siphon
effect. Do not install a shut-off valve in the outlet line.
4.3.1 Installing the measuring water inlet and outlet
1. Remove the blind plugs from the inlet thread and the outlet
thread of the flow cell.
Fig. 1 Blind plug
2. Connect the Rp 1/2" hose adaptor fittings to the inlet and the
outlet.
– The Rp 1/2" hose adaptor fittings are included in the
standard delivery of the DID.
3. Assemble the inlet and the outlet hose as follows:
– Push union nut and tensioning ring across the hose.
– Push the cone part fully into the hose, see fig. 2.
– Attach the cone part with hose to the adaptor fitting.
– Tighten the union nut manually. Do not use tools.
Fig. 2 Connecting the inlet hose
Avoid high loads caused by long or heavy hoses hanging from the
outlet port of the flow cell. A strain-relief for the outlet hoses may
be required.
4.4 Installing the sensors
All sensors used in the DID are packed separately to avoid
damage. They have to be prepared before installation according
to the "Installation" section in the manual "Sensors" supplied with
the sensor.
• For installation of the sensors in the flow cell, see the manual
"Sensors" supplied with the sensors.
• As soon as the sensors are ready for operation, they must be
wetted.
• Sensors equipped with electrolyte and membrane cap must
remain powered.
4.5 Checking the tightness
1. Carefully open the inlet valve and check for any leakage of the
flow cell assembly.
2. Check if any air bubbles are visible within the hose.
3. Purge the bubbles out by temporary increase of the flow.
WARNING
Electric shock
- Switch off the power supply before installation.
- IP65 only applies, if the housing cover and the
terminal compartment of the CU 382 are properly
closed, and the appropriate cable glands or
dummy caps are fitted.
- Installation must be carried out by qualified and
authorised persons.
See also the manual "Sensors" supplied with the
sensor. Find the manual "Sensors for DID" on
Grundfos Product Center: (http://net.grundfos.com/
Appl/ccmsservices/public/literature/filedata/
Grundfosliterature-6119622.pdf).
TM06 5927 0316TM041155 0110
Hose
Union nut Tensioning ring
Cone part

English (GB)
5
5. Starting up the product
5.1 Initial startup
1. Connect all sensors to the CU 382 control unit. See also
section 6.2 Connecting the sensors to the CU 382 control unit.
2. Slowly open the inlet valve.
3. Check the hydraulic system of the DID for leakages.
6. Electrical connection
6.1 Terminal connection
6.1.1 Connecting the terminals
1. Remove the two cross-head screws on the terminal
compartment of the CU 382 control unit.
2. Open the terminal compartment.
3. Connect the terminals according to the terminal connection
plan.
Fig. 3 Terminal connection plan
Description and use of the terminals
WARNING
Electric shock
- Switch off the power supply before startup.
- IP65 only applies, if the housing cover and the
terminal compartment of the CU 382 are properly
closed, and the appropriate cable glands or
dummy caps are fitted.
- Initial startup must be carried out by qualified and
authorised persons.
WARNING
Electric shock
- Switch off the power supply of the DID and all
devices you plan to connect before terminal
connection.
- Terminal connection must be carried out by
qualified and authorised persons.
TM065958 0316
13 579
RS485
11 13 15 17 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53
2 4 6 8 10 12 14 16 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 55 5418
19
12 V Out
GND
4/20 #1
4/20 #2
4/20 #3
4/20 ln #1
4/20 ln #1
ln #1
ln #2
Flow #1
RS485
MOD 1
MOD 1
MOD 2
MOD 2
Relay 1
Relay 2
Err
Err
RS485
Valve
Clean in
4/20 #1
4/20 #2
4/20 #3
4/20 ln #1
ln #1
ln #2
Flow #1
RS485
MOD 1
MOD 1
MOD 2
MOD 2
Relay 1
Relay 2
Err
Err
90...240 VAC
90...240 VAC
PA- A-
PS
+++++++NO NO NO NC
NB+ B+
-
+-----CCCC
+
Terminal Description Use
1Phase
Power supply
(100-240 V,
50-60 Hz)
2 Neutral
3PE
4PE
5-8 Unused, can be used to connect S::CAN sensors
9 12 V output
Cleaning valve
control
10 Cleaning valve output (provides
power for the valve +12 V)
11 GND, for cleaning valve and
external trigger
12 External trigger for cleaning valve
13 4-20 mA output #1 (+)
Analog outputs
14 4-20 mA output #1 (-)
15 Shield connections (optional)
16
17 4-20 mA-output #2 (+)
18 4-20 mA-output #2 (-)
19 Shield connections (optional)
20
21 4-20 mA-output #3 (+)
22 4-20 mA-output #3 (-)
23 Power supply for 4-20 mA input
(only for passive sources)
Analog input
24 4-20 mA-input #1 (-)
25 4-20 mA-input #1 (+)
26 Shield connection (optional)
27 Digital input #1 (+), relay to switch
on/off or as pulse source
Digital inputs
28 Digital input #1 (-)
29 Digital input #2 (+), relay to switch
on/off or as pulse source
30 Digital input #2 (-)
31 Flow #1, flow switch of bypass flow
cell, pre-wired in BF1/BF3 Flow cell - flow
switch
32 Flow #1, flow switch of bypass flow
cell, pre-wired in BF1/BF3
33 RS485 A- Modbus to
upper controls
(CU 382 is
slave)
34 RS485 B+
35 RS485 GND
36 RS485 shield
37-46 Unused, for later add-ons
47 Relay 1-NO, switches on/off or
provides pulse frequency
Digital output
(with relays)
48 Relay 1-C, common connector
49 Relay 2-NO, switches on/off or
provides pulse frequency
50 Relay 2-C, common connector
51 Error relay NO
Relay closes on alarm
Error relay
52 Error relay C, common connector
53 Error relay NC
Relay opens on alarm
54 Error relay C, common connector,
duplication of 52

English (GB)
6
6.2 Connecting the sensors to the CU 382 control unit
All sensors for the DID have plugs.
Sensors for immersion have fixed cables with plugs.
1. Make sure that the sensor plug and the socket of the CU 382
control unit are dry and clean.
– Otherwise communication errors may occur and the DID
might be damaged.
2. Connect the sensor to a compatible socket on the CU 382
control unit using the connection cable provided.
3. Cover the connectors that are not used with protective caps.
6.3 Connecting the valve for automatic cleaning
Only DID with sensor for tank immersion with valve for automatic
cleaning:
• Connect the valve to terminals 10 ("Valve", "12 VDC") and 11
(GND). See fig. 3.
• If an external cleaning signal is used, connect the signal line to
terminal 12 ("Clean In", minimum 5 V).
6.4 Connecting further inputs and outputs
Observe the supplier manuals when connecting actuator devices,
such as dosing pumps or regulators.
6.5 Connecting the CU 382 to the power supply
• Install an earth leakage circuit breaker for the power supply.
• If the installation is in an area prone to lightning strikes, install
surge protection.
• Use an AC power supply with an earthed conductor wire.
– PE: protective earth
• Connect the process medium (e.g. waste water) to the same
earth ground with less than 0.5 Ohm.
6.6 Start-up of the operating software
If the CU 382 control unit is connected to the power supply, it
starts up and shows the s::can logo for 5 seconds. At first start-up
or if the internal settings have been reset to default, the CU 382
control unit starts with the selection of the language. See also
section 9.4.7
Select language... .
After this, the parameter screen is shown and the most recent
information is displayed.
6.7 Sensor initialisation
Every sensor that is connected to the CU 382 control unit must be
installed and initiated individually. This can be done using the
software-supported initialisation process.
• Connect only the sensor you want to initialise to the CU 382.
– An individual address is allocated to the initialised sensor.
If no sensor was connected before, the CU 382 jumps into the
"Add s::can Sensor..." menu to check for connected sensors,
right after setting the language.
7. Storing and handling the product
• Before storing the DID, empty all pipes, hoses and flow cells,
remove the sensors and pack them separately.
• Observe the permissible ambient conditions. See section
12. Technical data.
• Do not expose the DID to strong impact, mechanical loads or
vibrations.
• Keep the DID away from corrosive substances, vapours of
organic solvents, nuclear radiation and strong electromagnetic
radiation.
• Use the original packaging or equivalent to protect the DID
during storage.
WARNING
Electric shock
- Switch off the power supply before connecting the
CU 382 control unit.
- IP65 only applies, if the housing cover and the
terminal compartment of the CU 382 are properly
closed, and the appropriate cable glands or
dummy caps are fitted.
- Electrical connection must be carried out by
qualified and authorised persons.

English (GB)
7
8. Product introduction
8.1 Product description
Fig. 4 Components of DID with flow cell
Fig. 5 Components of DID with immersed sensor
8.2 Intended use
The DID is designed for online monitoring of water quality
parameters and offers control functions for these parameters.
The DID must be used in accordance with the instructions given
in this manual. The values mentioned in this manual must be
observed.
8.3 Functional principle
The CU 382 control unit has a display and 7 operating buttons on
the front. The operating software starts automatically when the
CU 382 is powered-on.
The CU 382 control unit collects and displays readings from all
sensors via a digital bus connection. The CU 382 control unit
includes a PID (Proportional-Integral-Derivative) controller. With
the PID controller and dosing units, a closed control loop can be
set up.
The hydraulic part of the DID manages the complete water flow
from the inlet to the outlet. This includes filtration, pressure
reduction, flow restriction and flow control. The DID comprises
specifically designed flow cells for mounting of the sensors and
appropriate sampling.
TM068088 3416TM068089 3416
T
OK
W X
S
9
5
4
3
2
1
11
10
10
12 13 14
15 15
15
15
7
6
6a
8
18
19
6c
6b
T
OK
W X
S
11
10
10
8
7
16
17
12 13 14
Pos. Description
1Water inlet, G 1/2 internal thread, connections for
Grundfos hoses
2 Ball valve, 1/4 NPT
3Inlet strainer, with screw cap for removal and cleaning of
the sieve
4 Flow restrictor, mechanical
5 Flow detector, digital
6 Flow cell for 1 or 3 sensors
6a Sampling valve
6b Sampling point
6c Water outlet, G 1/2 internal thread, connections for
Grundfos hoses
7 Sensors
8 CU 382 control unit
9 Opening for power supply and sensor cables
10 Screws for the terminal compartment
11 Latch of CU 382 cover
12 Cable gland for power supply
13 Connectors for s::can sensors
14 Cable gland for signal outputs
15 Holes for wall mounting
16 Sensor holder
17 Sensor guard
18 Backplate
19 Nameplate
20 Transparent hose for sample water

English (GB)
8
8.4 Identification
8.4.1 Nameplate
Fig. 6 Nameplate on the CU 382 control unit
Fig. 7 Nameplate on the DID
8.4.2 Type key
Example: DID-3 BF3-FCL2/TCL2/pH
TM065920 0316
Pos. Description
1 Manufacturer and country of origin
2 s::can product name
3 Number of sensors
4 Bar code
5 Serial number (S/N)
6 Enclosure class
7 Certification marks
8 QR code
9Type
10 Voltage [V]
11 Frequency [Hz]
12 Power consumption [W]
13 Humidity limits
14 Temperature limits
TM068610 0817
Pos. Description
1 s::can product name
2 Parameter
3 Mounting type
4Type
5 Part number
6 Bar code
7 Serial number (S/N)
1
2
3
5
7
8
10,11,12
13
14
4
6
9
1
2
3
4
5
6
7
Code Description
CU 382
control unit
variant
DID-1 CU 382-1 for 1 parameter +
temperature, 100-240 VAC, 50-60 Hz
DID-3 CU 382-3 for 3 parameters +
temperature, 100-240 VAC, 50-60 Hz
Installation
variant
BF1 Bypass flow cell, 1 sensor
BF3 Bypass flow cell, 3 sensors
BT4 Bypass flow cell, 1 optical sensor and 3
additional sensors
TI1 Tank immersion, 1 sensor
TI2 Tank immersion, 2 sensors
Parameters
/ Sensors
FCL2 Free chlorine 0-2 ppm
FCL20 Free chlorine 0-20 ppm
TCL2 Total chlorine 0-2 ppm
TCL20 Total chlorine 0-20 ppm
CDI2 Chlorine dioxide 0-2 ppm
CDI20 Chlorine dioxide 0-20 ppm
HP2 Hydrogen peroxide 0-200 ppm
HP20 Hydrogen peroxide 0-2000 ppm
PA2 Peracetic acid 0-200 ppm
PA20 Peracetic acid 0-2000 ppm
pH pH 2-12 pH, up to 10 bar, 70 °C
ORP ORP, -2000 mV to +2000 mV, up to 10
bar, 70 °C
CND Conductivity, 1-500000 µS/cm (2-42
PSU), up to 20 bar, 70 °C
TURB Turbidity in drinking water, 0-800 FTU/
NTU
TURB/
ORG
Turbidity in drinking water, 0-800 FTU/
NTU, total or dissolved organic content
TOCeq / DOCeq 0.1- 25mg/l and
UV254 0-70 Abs/m
Remarks:
• All sensors include temperature measurement
• Measurement of disinfectant parameters (FCL,TCL, CDI, HP
or PA) is only possible with BF1 or BF3 installation variant
• BF1, BF3 and BT4 installation variants include flow detection
• BF1, BF3 and BT4 installation variants include 1.0 m sensor
cable
• TI1 and TI2 installation variants are only possible for
parameters pH, ORP or CND
• TI1 and TI2 installation variants include 7.5 m sensor cable
• Power cable is not included, please select it from the
accessories list and order separately

English (GB)
9
9. Operation
9.1 Operating elements
Fig. 8 CU 382 operating elements
9.2 Display screen
Fig. 9 CU 382 display screen
TM065854 0216
Pos. Description
1 Power LED, green
2Communication LED, orange
• Flashes during communication with a sensor
3USB slot
4 Display screen
5 Operating buttons
[Back] button
• Exits the current menu
[Up] button
• Moves the marker to the line above
– The first character of the selected line is a
triangle
• Increases values
[Function] button
• Enters the setup menus
• Disables or deletes values
[Left] button
• Moves the marker to the left
[OK] button
• Enters the selected menu
• Confirms the selected line or value
• Acknowledges alarms
[Right] button
• Moves the marker to the right
[Down] button
• Moves the marker to the line below
– The first character of the selected line is a
triangle
• Decreases values
1
2
3
4
5
OK
TM077280 3620
Pos. Description
1 Top menu bar
Symbols in the top menu bar of the display screen:
[Right] symbol
• If this symbol is shown, you can navigate to
the next menu with the [Right] button.
[Left] symbol
• If this symbol is shown, you can navigate to
the previous menu with the [Left] button.
[Down] symbol
• If this symbol is shown, you can navigate
inside the selected menu with the [Down]
button.
[Up] symbol
• If this symbol is shown, you can navigate
inside the selected menu with the [Up]
button.
Sensor symbol
• If this symbol is shown, a parameter or
calibration error occurred, or a sensor is
missing. For details, navigate through the
parameters in the parameter menu.
2
Parameter name and unit
• If a parameter name and symbol appears
inverted and flashes, an error occurred and
the error relay is activated.
3 ► Marker showing the relevant line
1
2
3

English (GB)
10
9.3 Software overview
The CU 382 has different screens and menus, which can be selected by the [Right] and [Left] buttons. The default screen is the parameter
screen.
When pressing the [Back] button several times in a submenu, you come back to one of the following screens:
Service Status Parameter Controller
Service... Status P1/3 pH C2/2
Timeout [min]: Version : Vx.xx pH
Outputs: Serial: ►9.49 ►15 %
►Enter service mode Waiting 1 s Temp pH >4-20mA #2
YYYY/MMM/DD HH:NN:SS 22.1 CAV/SP: 6.86/7.00 (ext.)
Service General setup Parameter setup Controller setup
►Trigger measurement ►Manage sensors... ►Calibrate expert... ►Setpoint...
Trigger cleaning Cleaning 1... Monitor... Settings... PID/2-P
Leave service mode Cleaning 2... Display settings... Source:
Meas. settings... Alarm settings... Output:
Date/Time... Output: Output settings...
MODBUS slave... Output settings... Alarm sources...
Update software... pH compensation... Reset state
Select language... Parameter info...
Service... Move up
License... Move down
Remove parameter
Alarm USB Data transfer
AP001 A1/1 USB data transfer
YYYY/MMM/DD HH:NN:SS ►Copy results
pHbelow Delete results
lower alarm limit Copy log/cfg
Delete log/cfg
Update software...
Copy license
► Acknowledgment of alarms Config backup
Config restore