Hanna Instruments BL120 User manual

INSTRUCTION MANUAL
SWIMMING POOL CONTROLLERS
BL120 · BL121
&
BL122 · BL123
WITH CLOUD CONNECTIVITY

All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc.,
Woonsocket, Rhode Island, 02895, USA.
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using this instrument.
This manual will provide you with the necessary information for correct use of this instrument, as well as a
precise idea of its versatility.
If you need additional technical information, do not hesitate to e‑mail us at [email protected] or view
our contact list at www.hannainst.com.
Dear
Customer,

3
TABLE OF CONTENTS
TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION ................................................................................................................................. 5
2. SAFETY MEASURES............................................................................................................................................... 6
3. ABBREVIATIONS................................................................................................................................................... 6
4. SPECIFICATIONS................................................................................................................................................... 7
4.1. COMPARISON TABLE FOR BL12X SWIMMING POOL CONTROLLERS................................................................. 7
4.2. TECHNICAL SPECIFICATIONS OF BL120, BL121 & BL122, BL123.................................................................... 7
4.3. HI1036-18XX* PROBE SPECIFICATIONS....................................................................................................... 9
5. DESCRIPTION..................................................................................................................................................... 10
5.1. GENERAL DESCRIPTION & INTENDED USE................................................................................................... 10
5.2. FUNCTIONAL & DISPLAY DESCRIPTION ....................................................................................................... 11
5.3. WIRING ................................................................................................................................................... 13
5.4. ETHERNET CABLE WIRING (BL122 & BL123 ONLY)...................................................................................... 14
6. INSTALLATION.................................................................................................................................................... 15
6.1. GENERAL GUIDELINES............................................................................................................................... 15
6.2. INSTALLATION STEPS................................................................................................................................ 15
6.3. MOUNTING RECOMMENDATIONS FOR SADDLE............................................................................................ 18
6.4. CONNECTING THE PROBE TO THE PUMP CONTROLLER.................................................................................. 19
6.5. INSTALLING THE ASPIRATION FILTER.......................................................................................................... 20
6.6. INSTALLING THE INJECTOR ........................................................................................................................ 20
6.7. FLOW CELL INSTALLATION ......................................................................................................................... 21
6.8. CLOUD CONNECTIVITY (BL122 & BL123).................................................................................................... 22
7. SETUP............................................................................................................................................................... 23
7.1. USER INTERFACE...................................................................................................................................... 23
7.2. GENERAL SETUP OVERVIEW....................................................................................................................... 25
7.3. PARAMETERS SETUP OVERVIEW.................................................................................................................26
7.4. HANNA CLOUD SETUP (BL122 & BL123)...................................................................................................... 29
7.5. SECURITY FEATURE................................................................................................................................... 30
7.6. ANALOG OUTPUTS (BL121 & BL123) ......................................................................................................... 31
8. OPERATIONAL GUIDE.......................................................................................................................................... 32
8.1. CALIBRATION............................................................................................................................................ 32
8.2. MEASUREMENT........................................................................................................................................ 36
8.3. CONTROLLER FUNCTIONING MODES (OVERVIEW)........................................................................................ 37
8.4. LOGGING.................................................................................................................................................. 40
8.5. LOG RECALL.............................................................................................................................................. 40
9. EVENT MANAGEMENT ......................................................................................................................................... 42
9.1. WARNINGS............................................................................................................................................... 42
9.2. ALARMS................................................................................................................................................... 42
9.3. PROCESS ERRORS..................................................................................................................................... 43

4
TABLE OF CONTENTS
9.4. SYSTEM ERRORS ...................................................................................................................................... 44
10. MAINTENANCE ................................................................................................................................................. 46
10.1. ELECTRODE CONDITIONING & MAINTENANCE............................................................................................ 46
10.2. PUMP TUBING REPLACEMENT.................................................................................................................. 46
11. ACCESSORIES................................................................................................................................................... 48
CERTIFICATION........................................................................................................................................................ 52
RECOMMENDATIONS FOR USERS.............................................................................................................................. 52
WARRANTY ............................................................................................................................................................. 52

5
PRELIMINARY EXAMINATION
1. PRELIMINARY EXAMINATION
Remove the instrument and accessories from the packaging and examine it carefully. For further assistance, please contact
your local Hanna Instruments Office or email us at [email protected].
Two installation kit versions are available:
•in-line – BL120-10, BL121-10,BL122-10, BL123-10
•flow cell – BL120-20, BL121-20, BL122-20, BL123-20
Each instrument is delivered in a cardboard box and is supplied with:
In-line mounting kit Flow cell mounting kit
•HI1036-1802 Combined electrode (pH / ORP / Temperature)
•Saddle for electrode, Ø 50 mm pipe (1 pc.)
•Fittings for electrode
•Injector (2 pcs.)
•Saddle for injectors, Ø 50 mm pipe (2 pcs.)
•Peristaltic pump tubing (2 pcs.)
•Aspiration and injection tubing (5+5 m)
•Aspiration filter (2 pcs.)
•7.01 pH Buffer solution (3 sachets)
•4.01 pH Buffer solution (3 sachets)
•470 mV ORP test solution (3 sachets)
•Power cable
•Instrument quality certificate
•Instruction manual
•HI1036-1802 Combined electrode (pH / ORP / Temperature)
•Panel mounted flow cell
•Valve for flow cell connections with fittings and tubing (10 m)
•Injector (2 pcs.)
•Saddle for valves, Ø 50 mm pipe (2 pcs.)
•Saddle for injectors, Ø 50 mm pipe (2 pcs.)
•Peristaltic pump tubing (2 pcs.)
•Aspiration and injection tubing (5+5 m)
•Aspiration filter (2 pcs.)
•7.01 pH Buffer solution (3 sachets)
•4.01 pH Buffer solution (3 sachets)
•470 mV ORP test solution (3 sachets)
•Power cable
•Instrument quality certificate
•Instruction manual
Note: Save all packing material until you are sure that the instrument works correctly. Any damaged or defective item
must be returned in its original packing material with the supplied accessories.

6
SAFETY MEASURES
2. SAFETY MEASURES
•Do not use chlorine tablets, granular chlorine or other non-liquid chlorine applications.
•Do not use the pool controller in a pool utilizing electrolytic chlorine generation (salt electrolysis).
•Do not add stabilizer (e.g. cyanuric acid) to the swimming pool while using the pool controller. To remove
stabilizer from the pool, the pool must be drained and cleaned.
•Always disconnect the pool controller from power when making electrical connections.
•Do not access the larger rear panel.
•Do not run other cables with the power cable through the cable gland.
3. ABBREVIATIONS
DHCP Dynamic Host Configuration Protocol
IP Internet Protocol (address)
LED Light Emitting Diode
ORP Oxidation-Reduction Potential
REDOX Reduction & Oxidation
SPDT Single Pole Double Throw
ABBREVIATIONS

7
SPECIFICATIONS
4. SPECIFICATIONS
4.1. COMPARISON TABLE FOR BL12X SWIMMING POOL CONTROLLERS
pH measurement ORP measurement Acid dosing pump Chlorine dosing pump Analog outputs Hanna Cloud connectivity
BL120 
BL121 
BL122  
BL123 
4.2. TECHNICAL SPECIFICATIONS OF BL120, BL121 & BL122, BL123
Range
0.00 to 14.00 pH
±2000 mV
-5.0 to 105.0 ºC (23.0 to 221.0 °F)*
Resolution
0.01 pH
1 mV
0.1 °C (0.1 ºF)
Accuracy
@25 °C / 77 °F
±0.05 pH
±5 mV
±1.0 ºC (±1.8 ºF)
Calibration
•pH buffer calibration: automatic, two points (4.01, 7.01, 10.01 pH)
•pH process calibration: adjustable, single point
•ORP (mV) calibration: adjustable, single point
Temperature compensation •Automatic -5.0 to 105.0 ºC (23.0 to 221.0 ºF) for pH
pH Controller
•Proportional feed using adjustable set point and adjustable proportional band
•Delay to start at power-on
•Overdosing protection using overfeed safety timer
ORP Controller
•Proportional feed using adjustable set point and adjustable proportional band
•Delay to start at power-on
•Overdosing protection using overfeed safety timer
•pH regulator interlocked
Alarms •High and Low with enable / disable option for all parameters
•Alarm is triggered after five consecutive readings over / under threshold
*The range (pH & temperature) may be limited by the probe’s limits.

8
SPECIFICATIONS
Log feature
•Automatic log
•60 days logging with 10 seconds period (or 100 logs)
•pH / ORP / temperature measurements
•Events: alarms / errors / power outage
•Recall table / graphic modes
•Export on USB key
•Log files in CSV format
Cloud connectivity
BL122 & BL123 only
The BL122 & BL123 devices can connect to Hanna Cloud using a secured connection.
•Ethernet (RJ45) 10/100 Mbps connection
•Device identity registry
•Policy-based authorization of security keys
The instrument will send status information to Hanna Cloud with a defined period.
•Readings: pH / ORP / Temperature
•Events: Alarms / Warnings / Errors
•Peripheral status: LEDs
•Last dosed acid and chlorine volumes
•GLP info
The instrument will send setup information to Hanna Cloud at startup and whenever
the setup is changed on the instrument.
•Alarm settings
•Dosing settings
•General settings
•System: Meter information (model, FW version, OS version, serial number), Probe
information (type, FW version, serial number)
The “Remote Hold” mode:
•is an emergency mode that can be remotely triggered via web application
•in this mode the pumps are deactivated
•can be canceled manually from the controller menu
Ethernet input
BL122 & BL123 only •Ethernet connector (RJ-45) 10/100 Mbps connection
Additional specifications
Pump control
•Pump flow control 0.5 to 3.5 L/h (0.13 to 0.92 G/hour) and maximum output pressure
1 atm (14 psi)
•Manual control for each pump
Password protection •The setup, calibration and log recall features are password protected
Storage interface •USB
GLP •pH / ORP
Alarm system
•Intuitive alert system based on LED color coded alarm system
•Alarm filtering options
•Alarm relay control based on user setup filters
Alarm relay output SPDT 5A/230 Vac
Activated by selectable pH / ORP / Temperature alarm conditions

9
SPECIFICATIONS
Analog outputs
BL121 & BL123 only
•Three configurable analog outputs, 4 to 20 mA, sourcing
•Output impedance ≤ 500 Ω
•Accuracy < 0.5 % FS
•Galvanic isolation, up to 50 V relative to earth
Three digital inputs
•Galvanic isolation, powered contact type
•One input for low level in acid / base tank (contact open)
•One input for low level in chlorine tank (contact open)
•One input for Hold mode (contact open)
Single probe input
•Probe type: HI1036-18XX pH / ORP /Temperature / Matching pin, combined digital
probe
•DIN waterproof connector
•Galvanic isolation
•RS485 interface
Power supply 100 - 240 Vac
Power consumption 15 VA
Environment •0-50 ºC (32-122 ºF)
•Max. 95% RH non-condensing
Dimensions 245 x 188 x 55 mm (73 mm with pumps)
9.6 x 7.4 x 2.2” (2.9” with pumps)
Weight 1700 g (60 oz)
Casing Wall mounted, built-in pump, IP65 rated
4.3. HI1036-18XX* PROBE SPECIFICATIONS
Range pH
ORP
Temperature
0.00 to 12.00 pH
±2000 mV
0.0 to 70.0 ºC (32.0 to 158.0 °F)
Reference Ag / AgCl reference electrode (3.5M KCl)
Junction Cloth
Matching pin Yes
Body PVDF
Top thread 3/4” NPT
Cable length 2, 5, 10, 15, 20 m cable
Connector DIN connector
Maximum pressure @25 °C 3 bar (43.5 psi)
Ordering codes HI1036-1802 (probe with 2 m long cable)
HI1036-1805 (probe with 5 m long cable)
HI1036-1810 (probe with 10 m long cable)
HI1036-1815 (probe with 20 m long cable)
* XX - identifies the cable length

10
DESCRIPTION
5. DESCRIPTION
5.1. GENERAL DESCRIPTION & INTENDED USE
The Hanna Instruments BL12X swimming pool controllers are automatic systems, specially designed to measure and control
pH and free-chlorine levels.
The chlorine level is measured based on the ORP or REDOX principle. An increase in the ORP value correlates with an increase
in the free-chlorine level. pH and disinfectant testing are done together for efficient disinfection and control. The efficacy of
sanitizers, such as chlorine, depends on a controlled pH value. The ORP value is the most consistent indicator of the sanitizing
effectiveness of the pool or water treatment. Typically, 650-750 mV at 7.2 pH indicates proper water treatment.
The BL122 & BL123 offer the added benefit of allowing remote access and visualizing of measured data via Cloud connectivity.
All measurements and main events are sent to Hanna Cloud through the Ethernet connection.
For BL121 & BL123 three analog outputs are available that allow to connect to an external chart recorder or datalogger to
monitor any of the three measured parameters. The outputs are scalable, offering increased flexibility and better resolution as
needed.
Any of the controllers can be paired with the HI1036-18XX digital probe. The probe incorporates pH, ORP and temperature
sensors along with a matching pin. It was specially designed to detect a broken electrode based on a shifted ISO potential
value, around 4 pH. The HI1036-18XX uses a Ag/AgCl reference with 3.5 M KCl. The ORP values are referenced to it.
Measurement data stored on the probe is transferred to the controller via a digital connection; thus eliminating noise and
static due to high impedance signals carried by the cable.
BL12X swimming pool controllers are available in two configurations:
•in-line, for direct probe installation and chemical injection fittings into existing piping
•flow cell, for calibration and probe maintenance without having to shut down the recirculation pump
For compliance monitoring, each of the BL12X family has a built-in datalogger. Measurement readings are logged every 10
seconds, with a new log starting for each new day or when the instrument is calibrated. Logged data include pH, ORP, and
temperature values, last calibration data, setup configuration, and any event data. For review and storage, the users can
transfer data to a PC using a flash drive and the USB port.
The BL12X swimming pool controller is an automatic system but it is advisable that users check the controller and verify pH
and free-chlorine levels (in mg/L or ppm) in the pool using a portable colorimeter.
Main Features
•Two built-in peristaltic dosing pumps with Proportional control
•Manual control for pump priming
•Overfeed protection using overtime safety timer
•Resumes dosing on restart in case of power failure
•Level input to stop control without reagents
•Interlocked pH-ORP control (i.e. ORP control only runs when the pH set point has been reached)
•Multicolored LED indicators for dosing, meter status and service
•Real-time graph display
•Programmable alarms
•Password protection
Main Benefits
•All-in-one solution for automatic control of pH and chlorine levels
•ORP (chlorine) dosing consent ensures pH value is correct before dosing

11
DESCRIPTION
5.2. FUNCTIONAL & DISPLAY DESCRIPTION
Front Panel
The front panel includes a custom display and keypad with tactile feedback. Normally the first line displays measurement
readings and the second line dispays temperature. Two LEDs indicate alarm status and service conditions. A red LED indicates
fault condition. Two additional blue LEDs flash, indicating pump activation.
1. Power switch
2. Acid dosing pump
3. IN acid
4. OUT acid
5. Drainage holes
6. IN chlorine
7. OUT chlorine
8. Chlorine dosing pump
9. Cable gland seals
10. Probe connector
11. Keypad area
12. USB port (host)
13. Liquid Crystal Display (LCD)
14. LED area
15. Status LED
16. Service LED
17. Chlorine pump - status LED
18. Acid pump - status LED
Keypad Functions
1. MENU key – Press MENU key to enter setup mode and access manual pump control; pH/ORP/Temperature options
2. /keys – When in MENU mode, press the arrow keys to scroll the menu items / adjust the settings
– When in measurement mode, press the arrow keys to change the screen: three parameter screen
(pH, ORP, temperature), single parameter screen and plot display
3. HELP key – Enter / exit Help menu
4. Functional keys – Contextual functionality

12
DESCRIPTION
Rear Sub Panel
Etherne
t connector
Note: The analog outputs – AO1, AO2, AO3 – are available only for BL121 & BL123.
The Ethernet connector is available only for BL122 & BL123.
Warning! Always disconnect the Pool Controller from power when making electrical connections. Do not access
the larger rear panel. User-serviceable terminals are found in the small sub panel only.
Use a Phillips head screwdriver and remove the single screw attaching the small back cover.
To replace the detachable rear panel, attach the bottom part of the panel to the controller and push to close. Tighten the screw
that secures the panel to the housing.

13
DESCRIPTION
5.3. WIRING
Ethernet connector
ANALOG OUTPUTS
(BL121 & BL123)
A01 +4 - 20 mA OUT
–
A02 +4 - 20 mA OUT
–
A03 +4 - 20 mA OUT
–
ETHERNET
(BL122 & BL123)RJ-45 connector
DIGITAL INPUTS
ALARM RELAY
POWER INPUT
L Line
Protective Earth
N Neutral
Note: The analog outputs – AO1, AO2, AO3 – are available only for BL121 & BL123.
The Ethernet connector is available only for BL122 & BL123.
Warning! Always disconnect the Pool Controller from power when making electrical connections. Do not access
the larger rear panel. User-serviceable terminals are found in the small sub panel only.
There are four openings for wiring:
•The left rear openings, for power and digital input wiring
•The left front opening, for alarm relay wiring
•The larger right opening, for analog output wiring (BL121& BL123) and the ethernet cable (BL122 & BL123)
•Sensor wiring is made using the connector with threaded seal
Note: Do not run power cabling through the same opening as other cables.
All unused openings must be sealed with conduit plugs.
Gland seals for
inputs cable
Alarm relay cable Sensor input
Analog outputs cable
(BL121 & BL123)
Ethernet cable
(BL122 & BL123)
Power cable

14
DESCRIPTION
5.4. ETHERNET CABLE WIRING (BL122 & BL123 ONLY)
1. Insert the ethernet cable through the knurled nut and the slotted rubber seal.
2. Insert the ethernet cable through the casing into the housing.
3. Insert the analog output connection cable through the same knurled nut and slotted rubber seal. Use a 6 conductor wire
cable.
4. Feed the cables through the seal to reach intended terminals.
5. Insert the rubber seal into the housing, then tighten the connection by turning the knurled nut clockwise.
Nut
Housing
Rubber seal
Note: For BL123 always connect the analog output connections before connecting the ethernet cable.
•Always disconnect the pool controller from power when making electrical connections.
•Do not access the larger rear panel.
•Do not run other cables with the power cabling.
•User-serviceable terminals are found in the small sub panel only.
•Do not run power cabling through the same opening as other cables.

15
INSTALLATION
6. INSTALLATION
There are two available configurations:
•In-line, with the probe placed in saddle, mounted on pipe after the pool filter.
•Flow cell, with the probe mounted in the flow cell, close to the controller. The water sample is directed to the flow cell via
a small diameter sample line with appropriate connections (provided).
With flow cell configurations, the water circulation can be stopped by closing the valve on the inlet while maintenance or
calibration procedures are performed.
6.1. GENERAL GUIDELINES
Electrical connection, installation, start-up, operation and maintenance must be carried out by specialized personnel only.
•Select controller location so that it is shielded from direct sunlight, dripping water and excess vibrations.
•Keep flow rate as constant as possible for optimum sensor operation.
•Install cable gland fittings and plugs as needed, to properly seal the pump controller.
•For optimal operation, all tubing, cables, saddles and fittings must be properly connected.
•For in-line installation, the probe saddle should be positioned after the pool filter (within 2 m distance).
Caution! Use gloves, protective clothing and eye protection goggles when working with injectors and tubing.
Note: Determine if a flow detector, alarm relays or analog outputs (BL121, BL123) will be used before mounting flow
cell panel or pool controller, as access to rear sub panel is needed.
6.2. INSTALLATION STEPS
Note: Recirculation pump must be off.
1. Check the acid and chlorine reagent tank level.
2. Calibrate the probe before use in the system.
3. Mount the probe into saddle (in-line configuration) or in a flow cell.
4. Mount the injector saddles (see procedure).
5. Connect the flexible PVC aspiration tubing between filters in chemical tanks and inlet of pumps.
6. Connect the rigid PE dispensing tubing from the pump outlets to the injectors.
7. Check the level sensor’s functionality (if used).
8. Check hold input functionality (if used).
BL12X controllers are shipped with two types of tubing, for both flow cell and in-line configurations:
•rigid tubing for outlet (dispensing) – connects the pump outputs to the injectors
•flexible tubing for inlet (aspiration) – connects the reagent filters to the pump inlets

16
INSTALLATION
In-Line Installation Overview & Components Table
Below is an illustrated reference of a generic, in-line installation scheme with the relevant components.
HELP
MENU
ChlorinepH
SWIMMING POOL CONTROLLER
SERVICE
STATUS
BL123
7
7
5
1
6
6
4
2
3
8 9 9
Position Component description
1 Pool controller
2 pH/ORP/temperature electrode
3 Electrode fitting
4 Flexible tubing for pump input
5 Rigid tubing for pump output
6 Aspiration filter
7 Injector, ½” thread
8 Probe saddle for Ø 50 mm pipe, using1 ¼” thread
9 Injector saddle for pipe, using 1/2” thread
Note: Connections for flow detector and for level sensor (acid & chlorine tanks) are optional.

17
INSTALLATION
Flow Cell Installation Overview & Components Table
Below is an illustrated reference of a generic, flow cell installation scheme with the relevant components.
The maximum pressure of the flow cell system is 3 atm (44 psi).
HELP
MENU
ChlorinepH
SWIMMING POOL CONTROLLER
SERVICE
STATUS
BL123
ACID TANK CHLORINE TANK
1
2
3
4
5
6
8
7
9 9
10
10
8
12 12 12 12
11 11
Position Component description
1 Pool controller
2 pH/ORP/temperature electrode
3 Flow cell
4 Flow cell adapter
5 Flow cell tubing
6 Flexible tubing for pump input
7 Rigid tubing for pump output
8 Aspiration filter
9 Flow cell valve
10 Injector, 1/2” thread
11 Plastic nipple, 1/2”
12 Injector saddle for pipe, using 1/2” thread

18
INSTALLATION
6.3. MOUNTING RECOMMENDATIONS FOR SADDLE
•Select required drill size. See table below for dimension details.
Drill
Pipe
•Place the upper part of the saddle (5) on top of the pipe (3) with the
seal (4) placed over the hole.
•Take the lower part of the saddle (2), together with inserted nuts (1)
and align it under the upper part.
•Insert the screws (7) with washers (6) through the holes and hand
tighten into the mounted nuts.
•With all the screws (7) in place, use a wrench to carefully tighten.
•Place the O-ring (8) provided into the upper saddle.
Probe Saddle (In-line Configuration) Thread Size Drill Size
BL120-550 Ø 50 mm pipe 1 ¼”thread 29 mm - 32 mm / 1.14” - 1.26”
BL120-563 Ø 63 mm pipe 1 ¼”thread 29 mm - 32 mm / 1.14” - 1.26”
BL120-575 Ø 75 mm pipe 1 ¼”thread 29 mm - 32 mm / 1.14” - 1.26”
Valve Fittings (Flow Cell Configuration) Thread Size Drill Size
BL120-450 Ø 50 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
BL120-463 Ø 63 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
BL120-475 Ø 75 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
Injector Saddle Thread Size Drill Size
BL120-250 Ø 50 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
BL120-263 Ø 63 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
BL120-275 Ø 75 mm pipe ½”thread 20 mm - 25.4 mm / 0.79” - 1.00”
6
4
1
5
2
3
7
8

19
INSTALLATION
6.4. CONNECTING THE PROBE TO THE PUMP CONTROLLER
Ensure the probe is connected and calibrated before installation.
1. Remove protective cap and verify the O-ring is in place. 2. Insert the nut onto the probe.
O-ring
Protective cap
Nut adapter
3. Carefully screw the adapter onto the probe taking care
not to damage the O-ring.
4. Insert the probe with the adapter and screw it carefully
into the saddle.
Screw the
adapter

20
INSTALLATION
6.5. INSTALLING THE ASPIRATION FILTER
The aspiration filter is used in the reagent tank to filter and prevent debris from entering the tubing.
•Cut the required length of aspiration tubing (flexible) to reach between peristaltic pump inlet and aspiration filter.
•The nut should be placed on the tubing before it is connected. Place the end of tubing on the filter.
•The compression fitting has to be screwed in until tight on the filter.
•Slide the compression fitting from the peristaltic pump inlet onto the tubing.
•Slide the end of tubing over the fitting of the peristaltic pump tubing.
•Slide compression fitting up over tubing.
•Tighten the fitting.
6.6. INSTALLING THE INJECTOR
•Cut required length of dispensing (rigid) tubing to reach between injector saddle and outlet of peristaltic pump.
•Place the compression fitting nut on the tubing.
•Place the end of tubing on the injector.
•The compression fitting has to be screwed in until tight on the injector.
•Screw the injector in the saddle.
•Slide compression fitting from pump tubing onto tubing.
•Slide the end of tubing over fitting of pump tubing.
•Slide compression fitting over tubing.
•Tighten the fitting to secure in place.