Hanna Instruments Groline HI981413 User manual

INSTRUCTION MANUAL
HI981413
Nutrient Dosing System

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 ............................................................................................... 4
2. SAFETY MEASURES............................................................................................................. 5
3. ABBREVIATIONS & CONVERSION CHARTS ............................................................................ 5
4. SPECIFICATIONS................................................................................................................. 6
4.1. HI981413 NUTRIENT DOSING SYSTEM....................................................................... 6
4.2. HI30033 PROBE....................................................................................................... 7
5. DESCRIPTION..................................................................................................................... 8
5.1. GENERAL DESCRIPTION & INTENDED USE................................................................... 8
5.2. FUNCTIONAL & DISPLAY DESCRIPTION...................................................................... 10
6. INSTALLATION.................................................................................................................. 14
7. SETUP............................................................................................................................. 22
8. PUMP CONTROL ............................................................................................................... 29
8.1. AUTOMATIC CONTROL TYPES.................................................................................... 29
8.2. PRIMING THE PUMP................................................................................................ 30
9. EVENT MANAGEMENT ....................................................................................................... 31
9.1. ALARMS................................................................................................................. 31
9.2. WARNINGS............................................................................................................. 32
9.3. SUMMARY OF GENERAL BEHAVIOR .......................................................................... 32
10. CALIBRATION ................................................................................................................. 33
10.1. EC CALIBRATION ................................................................................................... 33
10.2. PROCESS EC & TDS CALIBRATION........................................................................... 34
10.3. CLEAR CALIBRATION.............................................................................................. 36
11. MEASUREMENT.............................................................................................................. 37
12. ERROR MESSAGES.......................................................................................................... 38
13. MAINTENANCE ............................................................................................................... 39
13.1. ELECTRODE CARE & MAINTENANCE......................................................................... 39
13.2. PUMP TUBING REPLACEMENT................................................................................ 39
14. ACCESSORIES................................................................................................................. 42
CERTIFICATION...................................................................................................................... 44
RECOMMENDATIONS FOR USERS............................................................................................ 44
WARRANTY ........................................................................................................................... 45

4
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].
Each HI981413 is available in multiple configurations: controller and probe - HI981413-00, kit for
in-line mounting - HI981413-10, kit for flow cell mounting - HI981413-20.
Each instrument is supplied with:
HI981413-00, without mounting kit
• HI30033 EC / TDS / temperature probe
• HI7031-012 Conductivity calibration
solution 1413 μS/cm, 120 mL
• Plastic beaker
• Power connection cable
• Instrument & electrode quality certificates
• Instruction manual
HI981413-10, with in-line mounting kit
• HI30033 EC / TDS / temperature probe
• HI7031-012 Conductivity calibration
solution 1413 μS/cm, 120 mL
• Controller aspiration filter
• Controller injector, " NPT thread
• Saddle for Ø 50 mm pipe (2 pcs.)
• Plastic beaker
• Power connection cable
• Instrument & electrode quality certificates
• Instruction manual
• PVC aspiration tubing (flexible)
length: 5 m
OD: Ø 6.0 mm; ID: Ø 4.0 mm
• PE rigid dispensing tubing (pump to injector)
length: 5 m
OD: Ø 6.0 mm; ID: Ø 4.0 mm
HI981413-20, with flow cell mounting kit
• HI30033 EC / TDS / temperature probe
• HI7031-012 Conductivity calibration
solution 1413 μS/cm, 120 mL
• Flow cell for HI981413
• Mounting panel assembly for HI981413
• Controller aspiration filter
• Controller injector, " NPT thread
• Saddle for Ø 50 mm pipe (3 pcs.)
• Plastic beaker
• Power connection cable
• Instrument & electrode quality certificates
• Instruction manual
• Rapid coupling " to 12.0 mm (2 pcs.)
• Flow cell valve (2 pcs.)
• PVC aspiration tubing (flexible)
length: 5 m
OD: Ø 6.0 mm; ID: Ø 4.0 mm
• PE rigid dispensing tubing (pump to injector)
length: 5 m
OD: Ø 6.0 mm; ID: Ø 4.0 mm
• PE rigid tubing (flow cell)
length: 10 m
OD: Ø 12.0 mm; ID: Ø 10.0 mm
OD: Outer Diameter; ID: Inner Diameter
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.

5
SAFETY MEASURES
2. SAFETY MEASURES
• Always disconnect the EC pump controller from power when making electrical
connections.
• Do not run other cables with the power cabling.
• Do not touch the metallic part. Hot surface.
3. ABBREVIATIONS & CONVERSION CHARTS
LED Light Emitting Diode
NPT American National Standard Taper Pipe Thread
ID Inner Diameter
OD Outer Diameter
PE Polyethylene
PVC Polyvinyl Chloride
SPDT Single Pole Double Throw
METRIC vs INCHES
Metric (mm) Inches - Decimal Inches - Fractional
4.0 mm 0.16" "
6.0 mm 0.24" "
10.0 mm 0.39" "
12.0 mm 0.47" "
20.0 mm 0.79" "
25.4 mm 1.00" 1"
50.0 mm 1.97" 1 "
63.0 mm 2.48" 2 "
75.0 mm 2.95" 2 "
METRIC vs FEET & INCHES
Metric (m) Feet (') Inches (") Feet (') Inches (")
2 m 6' 7" 6.56' 78.74"
5 m 16' 4" 16.40' 196.85"
10 m 32' 9" 32.80' 393.70"
ABBREVIATIONS & CONVERSION CHARTS

6
SPECIFICATIONS
4. SPECIFICATIONS
4.1. HI981413 NUTRIENT DOSING SYSTEM
Range
EC 0.00 to 10.00 mS/cm
TDS
0 to 9900 ppm, depends on TDS factor
i.e. with TDS factor 0.5, range 50 to 5000 ppm
with TDS factor 0.7, range 70 to 7000 ppm
Temperature* -5.0 to 105.0 °C (23.0 to 221.0 °F)
Resolution
EC 0.01 mS/cm
TDS 1 ppm
Temperature 0.1 °C (0.1 °F)
Accuracy
@ 25°C / 77°F
EC ±0.10 mS/cm (0.00 to 5.00 mS/cm)
±0.20 mS/cm (5.00 to 10.00 mS/cm)
TDS
± 2% F.S.
±50 (0 to 2500 ppm) with TDS factor 0.5
±100 (2500 to 5000 ppm) with TDS factor 0.5
Temperature ±0.5 °C (±0.9 °F)
Calibration
• User calibration:
automatic, one-point with standard solution (1.41 or 5.00 mS/cm)
• Process calibration:
single point, adjustable (±0.50 mS/cm around measured value)
• The corresponding value in TDS, depends on TDS factor
Temperature Compensation Automatic
EC to TDS Conversion Factor TDS factor selectable from 0.45 to 0.99
High or Low Mode
Operation
Pump Control
• On/Off control using adjustable set point
(0.10 to 10.00 mS/cm; 45 to 9900 ppm, depends on TDS factor)
with adjustable hysteresis
(0.05 to 0.50 mS/cm; 23 to 495 ppm, depends on TDS factor)
• Proportional control using adjustable set point
(0.10 to 10.00 mS/cm; 45 to 9900 ppm, depends on TDS factor)
with adjustable proportional band
(0.05 to 1.00 mS/cm; 23 to 990 ppm,depends on TDS factor)
• Startup delay timer at power-on (0 to 600 sec.)
• Pump flow control 0.5 to 3.5 Liter/hour (0.13 to 0.92 Gallon/hour) and
maximum output pressure 1 atm (14 psi)
• Manual control for pump priming (defined in setup)
*The range may be limited by the probe’s limits.

7
SPECIFICATIONS
EC/TDS Alarms
• High & Low with enable or disable option
• Triggered after 5 sec. if the controller records consecutive readings over or
under threshold values
• Level with enable or disable option
• Overtime protection (1 to 180 min. or Off)
Controller
Alarm System
• Intuitive alarm system, using red, yellow and green color coded backlight
• User-selectable, alarm setup options
Alarm Relay Output • SPDT 2.5A / 230 Vac
• Activated by EC/TDS - selectable alarm conditions
Probe Input • Quick connect DIN connector
• Galvanic isolation
Level Sensor Input
(Digital Input)
• External switches can be attached to stop the pump and activate the alarm
(low reagent level) when the switch is open and level alarm is configured
in Setup
• Galvanic isolation
Power Supply 100 - 240 Vac, 50/60 Hz
Power Consumption 15 VA
Environment 0 to 50 °C (32 to 122 °F), max. 95% RH non-condensing
Dimensions 90 x 142 x 80 mm (3.5 x 5.6 x 1.8”)
Weight 908 g (36 oz)
Casing Wall mounted, built-in pump, IP65 rating
4.2. HI30033 PROBE
Range 0-10 mS/cm
Pin Stainless steel
Temperature sensor Yes
Temperature range -5 to 60 °C (23 to 140 °F)
Body PVDF (white)
Top thread ” NPT
In-line mounting thread " NPT
Cable length 2 m
Connector Quick connect DIN connector
Maximum pressure @25 °C 3 bar (43.5 psi)

8
DESCRIPTION
5. DESCRIPTION
5.1. GENERAL DESCRIPTION & INTENDED USE
The HI981413 Nutrient Dosing System is part of Hanna Instruments Groline family and features a
durable EC controller with peristaltic dosing pump and a robust EC process sensor. The HI981413
has been designed to easily assimilate into a nutrient/fertilizer system to provide around the clock
monitoring and adjustment of hydroponic nutrient solutions to ensure operational consistency.
Nutrient management requires monitoring and optimizing nutrient levels efficiently before applying to
plants. In a freshly made solution, EC is the best way to verify that the resultant fertilizer agrees with
the fertilizer manufacturer’s recommendations.
Nutrients required for thriving plant growth are supplied through liquid nutrient solutions that contain
dissolved salts which are conductive. Conductivity measurements detect the amount of salts that have
been dissolved in the water. A higher EC indicates more salts have been dissolved and a lower EC
indicates a lower total salt concentration.
The HI981413 Nutrient Dosing System precisely monitors and displays the conductivity measured by
the HI30033 waterproof EC/Temperature probe and simultaneously controls the addition of nutrient
fertilizer using On/Off or proportional control. Growers can define the ideal set point in conductivity
(mS/cm) or TDS (ppm) units. The HI981413 is a small dosing controller and can be easily setup for
a stand-alone nutrient reservoir or be part of a modular control scheme with the HI981412 Groline
pH Dosing controller.
To obtain a representative conductivity measurement, the probe should be located at a spot that
experiences good circulation but is free from bubbles. The probe can be used in a “sample pot” or
reservoir or installed in a flow cell or recirculation line; perfect for drain-to waste or recirculating systems.

9
DESCRIPTION
Main Features
• Easy to read LCD display with intuitive, color-coded backlight
• Automatic Temperature Compensation: all readings are compensated for variations in temperature.
Temperature is displayed in °C or °F along with EC or TDS reading. The EC probe contains an
integral temperature sensor to simplify installation.
• Configurable EC to TDS/ppm conversion factor. Most commonly a TDS factor of 0.5 is used for 0 to
5000 ppm (500 CF) or a TDS factor of 0.7 is used for 0 to 7000 ppm (700 CF).
• High and low alarms: warn the user when the nutrient solution is out of desired range by blinking
the LCD backlight red, disabling the pump, and deactivating the alarm relay
• Built-in peristaltic pump with On/Off or Proportional control
• Manual control for pump priming
• Overfeed protection using the overtime safety timer
• Resumes dosing on restart in case of power failure
• IP65 rated enclosure designed to withstand harsh environments
• Level input to stop control when nutrient levels are low
• Wall-mounted design
• User selectable languages
• Extremely easy to calibrate and use (prepackaged calibration standards)
The HI981413 Groline Nutrient Dosing System is designed to ensure smooth, safe and efficient
nutrient use in growing operations and to grow healthy plants economically.

10
DESCRIPTION
5.2. FUNCTIONAL & DISPLAY DESCRIPTION
Front Panel
CAL
MENU
Nutrient Dosing
System
1. Keypad area
2. CAL key – Press calibration key to enter calibration mode.
3. MENU key – Press menu key to enter setup mode and move through the menu. Long press menu
key to exit the menu and return to measurement.
4. Dosing pump
5. LCD display
6. Arrow keys – When in measurement mode, press the two arrow keys together to prime the pump.
– When in menu mode, adjust settings.
– When in menu mode (Control screen), press the arrow keys together and a
10 seconds pump test will start.
Liquid Crystal Display (LCD)
1
2
3
4
5
6
7
8
1. Stability indicator 5. Measurement unit
2. Mode tags 6. First LCD line, measurement line
3. Dosing pump icon 7. Second LCD line, temperature and message area
4. Status indicators 8. Temperature units

11
DESCRIPTION
Internal Rear Panel
Use a Phillips head screwdriver and remove the four screws, pull back the cover and remove it.
To replace the rear panel, insert the four legs back in place and tighten the four screws that secure the
panel to the enclosure.

12
DESCRIPTION
Alarm Relay, Power & Level Sensor
ALARM RELAY OUTPUT
SPDT 2.5 A / 230 Vac
NO Normally Open
COM Common
NC Normally Closed
NO COM NC
Pump controller not powered
or
Alarm condition
NO COM NC
Working condition with no alarm
POWER INPUT
LLine – Hot connection
PE Protective Earth – Ground connection
NNeutral
LEVEL SENSOR
(Enabled in Setup)
OPEN
CONTACT
CLOSED
CONTACT
TANK
LEVEL

13
DESCRIPTION
4
5
6
7
1 Tubing fittings
2 Sensor input
3 Cable gland for level sensor cable
4 Drainage opening
5 Cable gland for alarm cable
6 Cable gland for power cable
7 Enclosure cap
Cabling safety measures. Qualified personnel should perform wiring only.
• A disconnect switch must be installed to break all current carrying conductors. Turn off
power before working on conductors.
• Always disconnect the pump controller from power when making electrical connections.
• Do not run other cables with the power cable through the cable gland.
• Always run all cables through cable glands to maintain IP65 rating and block unused
holes with cable seal plugs.

14
INSTALLATION
6. INSTALLATION
General Guidelines
• Select controller location so that it is shielded from direct sunlight, dripping water and excess
vibrations.
• Select the nutrient injector point away from the sampling point to prevent triggering an alarm.
• Keep flow rate as constant as possible for optimum sensor operation.
• Install cable gland fittings and plugs, to properly seal the pump controller.
• The probe is easily installed using " NPT threads for in-line or flow cell installation, and ” NPT
thread for reservoir immersion installation.
• Ensure all tubing, cables, saddles and fittings are properly connected.
Note: HI981413-10 and HI981413-20 Groline Nutrient controllers are shipped with two types
of tubing, for both flow cell and in-line configurations:
- rigid tubing for outlet (dispensing) - connects the pump output to the injector
- flexible tubing for inlet (aspiration) - connects the filter to the pump inlet
Wiring Guidelines
Running cables through cable glands
• Unscrew the gland nut and remove the cap.
• Thread cable through outer opening of proper gland nut, through the seal, and into case.
• After connecting to terminal, reinsert seal and tighten nut on the threaded gland.
Connecting cables to the internal terminals
• Using a screwdriver, connect the cable leads to the appropriate terminal.
• Following the printed lead markings (L, PE, N for power supply; NO, COM, NC for relay; level sensor
if required) ensure the leads are wired to the correct position.
Installation Steps
1. Check the nutrient tank level.
2. Calibrate the EC probe before installing in the system.
3. Mount the probe into saddle or into a flow cell.
4. Connect the aspiration tubing between the chemical tank and the pump’s inlet.
5. Connect the dispensing tubing between the pump and injector.
6. Check the level sensor’s functionality (if used).

15
INSTALLATION
Possible Installation Schemes for a Recirculating System
In-Line Installation, Overview & Parts Table
Below is an illustrated reference of a generic in-line installation scheme with the relevant components.
The maximum pressure entering the flow cell system is 3 atm (44 psi).
TAN K
INJECTOR
FLOW FLOW
5
6
4
1
2
3
Note: Injectors prevent back flow into reagent tank.
1Flexible PVC tubing Ø 6.0 mm and Ø ¼"
2 Aspiration filter
3 Saddle for Ø 50 mm (2") pipe, using " NPT thread
4 Injector, " NPT thread
5 EC probe
6 Rigid PE tubing Ø 6.0 mm and Ø ¼"

16
INSTALLATION
Flow Cell Installation, Overview & Parts Table
Below is an illustrated reference of a generic flow-cell installation scheme with the relevant components.
The maximum pressure entering the flow cell system (P1) is 3 atm (44 psi) and decreases when it exits
the flow-cell (P2). The maximum pressure for the pump (P3) is 1 atm (14 psi).
INJECTOR
FLOW CELL
FLOW FLOW
FLOW
FLOW
TAN K
P1 P2 P3
2
1
12
3
4
5
6
7
8
11
9
10
1 EC probe
2 Mounting panel
3 Flexible PVC tubing Ø 6.0 mm and Ø ¼"
4 Rigid PE tubing Ø 6.0 mm and Ø ¼"
5 Aspiration filter
6 Nipple, " to "
7 Valve to control flow-cell flow
8Saddle for Ø 50 mm (2") pipe,
using " NPT thread
9 Injector, " NPT thread
10 Adapter for tubing
" to Ø 12.0 mm
11 Rigid PE tubing Ø 12.0 mm
12 Flow cell and adapter

17
INSTALLATION
Reservoir Immersion Installation
Detailed below a representation of a reservoir immersion installation scheme together with the
relevant components and the EC probe screwed into the threaded end of a user supplied pipe and
fastened with a bracket.
  ”NPT
Waterproof assembly
1
2
4
3
1 Electrode holder tube
2 Bracket
3 Reservoir
4 Probe
Note: It is recommended to keep the waterproof probe fastened during measurements and that
only the probe body is continuously submerged.

18
INSTALLATION
Mounting Recommendations for Saddle
• Select required drill size. See table for dimension details.
Pipe
Drill
• Place the upper part of the saddle (3) on top of the
pipe (5) with the seal (4) placed over the hole.
• Take the lower part of the saddle (6), together with
inserted nuts (7) and align it under the upper part.
• Insert the screws (1) with washers (2) through the
holes and tighten by hand into the mounted nuts.
• Using a wrench, tighten all screws carefully.
Saddle for probe & injector Thread size Drill size
Ø 50 mm pipe ½” NPT thread 20 mm - 25.4 mm
Ø 63 mm pipe ½” NPT thread 20 mm - 25.4 mm
Ø 75 mm pipe ½” NPT thread 20 mm - 25.4 mm
Connecting the Probe to the Pump Controller (In-line Configuration)
• The probe should be connected to the controller and calibrated before
installation.
• To avoid twisting the cable, unplug probe from socket temporarily while
installing in saddle.
• Insert the probe and screw it carefully into the saddle, taking care not to
damage the O-ring. Tighten the probe enough to ensure a tight seal.
1
2
3
4
5
6
7

19
INSTALLATION
Installing Aspiration Filter
The aspiration filter is used in the reagent tank to filter
and prevent debris from entering the tubing.
• Cut required length of aspiration tubing (flexible) to
reach between peristaltic pump inlet and aspiration
filter.
• Place the end of tubing on the filter.
• The compression fitting has to be screwed until
secured 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.
Installing Injector
• Cut the 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 until secured 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.
• Secure and tighten the fitting.

20
INSTALLATION
Flow Cell Installation
In a flow cell configuration, the water flows from the inlet valve to the flow cell and returns in the line
via the outlet valve.
To prepare the inlet and outlet valve assemblies, as illustrated in the drawing:
• Mount the saddle for flow cell inlet and outlet valve, follow mounting recommendations for saddle.
• Sparingly lubricate two O-rings (2) with a thin film of silicon grease and mount them on the
nipple (1) on both sides.
• Screw the nipple in the saddle (3).
• Screw the valve (4) into the open end of the nipple mounted into the saddle. Make sure it is tight
and the lever is forward facing so that it can be operated.
• Carefully screw the straight tubing fitting (5) into the valve, taking care not to damage the O-ring.
• Insert the tubing (6) in the straight tubing fitting (5).
1 Nipple
2 O-ring
3 Saddle
4 Valve
5 Tubing fitting
6 Tubing
6
5
4
2
2
3
1