Martin Lishman Grainmaster i2-S User manual

Martin
Lishman
Grainmaster i2-S
Professional Crop Moisture Measurement
Distributed by
Martin Lishman Ltd
Tel: + 44 (0)1778 426600
www.martinlishman.com
Instruction Manual
GRN3000i2-S

2
Other products in the Martin Lishman range
See our website for further details:
www.martinlishman.com

3
Contents
Remember………………………………………..………………….……………………… 4
Product features………………………………………...…………………………………. 5
Taking a moisture reading……………………………………………………………..…. 6
Display codes…………..………………………………………………………………….. 7
Protimeter calibrations…………..………………………... ……………………..……… 8
Meter calibration adjustment……………………………………………….…………..… 9
Temperature correction ……...………………………………………..………………..… 11
Meter settings and Bluetooth………….…………………………………………………… 11
Care and Maintenance……………………………………………………...……….……. 12
Moisture probes ………………………...………………………………..……..…………. 14
Temperature probes………………………………………….……………………………. 15
Specifications……………………………………………………………………………….. 16
Warranty………...………………………………………………………………………….. 16
FIRMWARE UPDATES
We aim to ship your moisture meter with the latest firmware, but updates will
become available. You can update your meter with the use of the included USB
cable and a Windows PC. If you are using the Grainmaster mobile app, you will
need to use the most up to date firmware on your Grainmaster.
To view the full instructions on how to update your moisture meter, visit:
www.martinlishman.com/grainmaster-i2-firmware-update
Note: Your current version is displayed briefly on the start-up screen.
Protimeter Grainmaster i2-S
Grain Moisture Meter

4
Always grind the sample
Most calibrations are based on a ground sample (Page 8).
Keep it clean
For highest accuracy clean the grinder-compressor
regularly (Page 12).
Hard Wheat or Soft Wheat?
The wheat calibration is for Soft Wheat. To convert to a Hard
Wheat reading see Page 8.
Bias Adjustments
Crop calibrations can be adjusted manually (Page 9).
Display: +/- = Bias Set
Always use Automatic Temperature Correction (ATC)
ATC adjusts readings if a sample is not at 20°C. The default
setting is ATC switched ON (Page 10).
Display (flashing):ATC = ATC is OFF
Display (not flashing): ATC = ATC is ON
Avoid extremes
Keep the grain sample and the meter at a similar
temperature.
Auto-off is disabled whilst Bluetooth is on.
To turn on Bluetooth, turn on your meter, press and hold Λ
and then press . will appear on the screen. To turn it off
do the same with the V button.
REMEMBER!

5
Product Features
Grind/
Compress
Selector
ON & Moisture
Reading
Crop Selector &
Temperature Display
Standby Mode
Optional External
Probe Socket &
USB Socket
Meter Functions
Items supplied
Grain Hopper
Yellow
Black Pips
+
Cleaning Brush
Grinder-Compressor
Quick Check
Grain Cup
Grain Cell
Spare Grinder
Blade and
Feeder Ring
Free first year Service Voucher
Sample Spoon
Meter Spare battery
USB Cable

6
Step 1 - Prepare the Meter
Disconnect any external probe; leave the meter to switch OFF.
Check the Grinder-Compressor is clean (see Page 12 for cleaning instructions).
Ensure the compressor plunger is fully retracted, as follows:
Step 2 - Prepare the Sample
Taking a Moisture Reading
Place the Grain Cup on the
Grain Cell
Ensure the Grain Cell is clean
Align the Black Pips on the
handle with the Yellow
Slide the selector inwards to
the Compress position
Rotate handle anti-clockwise
until it clicks a few times
Slide the selector outwards to
the Grind position
Place the Grinder-Compressor
over the Grain Cup
Lock in place by twisting
clockwise against the lugs
Using the Spoon, pour a 10 ml
sample into the Grain Hopper
Rotate handle clockwise until
there is no grinding noise
Ensure the yellow remains
stationary during grinding
X
+
+

7
Align the Black Pips on the
handle with the Yellow
Slide the selector inwards to
the Compress position
Rotate handle clockwise until it
clicks a few times
Step 3 - Take the Reading
Press and hold to display the moisture content of
the sample. Keep holding the button until the reading
has stabilised. Releasing will freeze the value for
approximately 7 seconds, note and record this value
as required.
To change the crop type:
Display Codes
_ _ _ Standby mode
U - R Under measurement range
The sample is too dry or too cold. Can also display if the
sample is less than 10ml or not compressed.
O - R Over measurement range
The sample is too wet.
ATC (flashing) Automatic Temperature Correction (ATC) deactivated
+/- Crop calibration has been adjusted with a –ve or +ve bias
Battery indicator
Press  to put instrument in
standby mode
Use Λ or V to scroll to the crop Press and release
+
_ _ _
Bluetooth on

8
Protimeter Calibrations
Quick Check Value
at 20° C (see page 13)
CROP
SCALE 0-100 510 15 20 25 30 35 36.5 40 45 50 55 60 65 70 75 80 85 90
Barley I.S.O. 712 Ground 10.9 11.8 12.5 13.3 14.1 14.8 15.7 16.0 16.9 17.8 18.8 19.8 20.8 22.1 23.6 25.4 27.6 32.0 35.1
Beans/Tic/Winter Ground 12.4 13.4 13.8 14.1 14.8 15.4 16.3 16.5 17.0 17.7 18.3 19.0 19.7 20.6 21.5 22.6 23.9 Canola I.S.O. 665 Ground 7.0 7.5 8.3 9.2 9.4 9.9 10.7 11.6 12.7 13.9 15.8 17.8 20.2 23.3
Coffee Ground 10.2 10.6 11.2 11.9 12.6 13.3 13.5 14.0 14.7 15.4 16.2 17.1 18.8 20.6
Linseed Whole 7.0 7.4 7.8 8.3 8.9 9.4 10.1 10.3 10.8 11.6 12.5 13.5 14.6 16.0 16.5
Maize/Corn Ground 10.4 11.4 12.1 13.0 13.8 14.6 15.5 15.8 16.6 17.4 18.0 18.9 20.0 21.1 22.4 23.7 25.1
Oats I.S.O. 712 Ground 10.9 11.8 12.5 13.3 14.1 14.8 15.7 16.0 16.9 17.8 18.8 19.8 20.8 22.1 23.6 25.4 27.6 32.0 35.1 Oilseed Rape I.S.O. 665 Ground 7.0 7.5 8.3 9.2 9.4 9.9 10.7 11.6 12.7 13.9 15.8 17.8 20.2 23.3
Paddy Ground 10.4 11.4 12.1 13.0 13.8 14.6 15.5 15.8 16.6 17.4 18.0 18.9 20.0 21.1 22.4 23.7 25.1
Peas (Field protein type) Ground 12.0 12.9 13.8 14.5 15.4 16.2 17.2 17.5 18.3 18.9 20.0 21.8 22.5 23.0 24.3 25.3 27.4 30.0
Sorghum/Milo Ground 10.2 11.7 12.4 13.1 13.9 14.6 15.4 15.6 16.3 17.1 17.9 18.7 19.6 20.9 22.2 23.7 25.4
Soya Beans Ground 7.4 8.2 8.8 9.7 10.4 11.1 11.8 12.0 12.6 13.4 14.3 15.2 16.0 17.1 18.2 19.5 21.0 Sunflower Seed Whole 6.2 6.9 7.4 8.2 8.7 9.4 10.2 10.5 11.3 12.1 13.1 14.2 15.3 17.0 19.0 21.4
Rice(milled) Whole 13.2 13.9 14.8 15.5 16.3 17.2 17.5 18.4 19.5 20.7 22.0 23.3 25.6 27.2
Wheat/Rye - Hard ISO 712 Ground 12.0 13.0 13.7 14.5 15.3 16.0 16.8 17.0 17.7 18.6 19.6 20.8 22.0 23.4 25.0 26.8 28.7 Wheat/Rye - Soft ISO 712 Ground 11.3 12.3 13.0 13.8 14.6 15.3 16.1 16.3 17.0 17.9 18.9 20.1 21.3 22.7 23.3 26.1 28.0
Calibration Notes  Fifteen calibrations are pre-programmed into the Grainmaster i2-S, highlighted in red above. A further 29 calibrations
can be viewed on the Martin Lishman website www.martinlishman.com.
 The difference in calibration values for hard and soft wheat may not be the same for all hard wheat varieties. If in doubt,
obtain oven tests of a hard wheat sample so that the calibration can be verified.
 All crop calibrations are mean values of laboratory test results, so should not be considered as absolute. Local
environmental conditions, soil characteristics, crop varieties and other variables may lead to differences.
 Other calibrations can be created by using the 0-100 scale and oven-tested reference samples.

9
Making Bias Adjustments to the Meter
The meter reading can be adjusted to match another meter’s reading. The pre-
programmed crop calibrations can be adjusted individually by +/-1.5%, as follows:
Measure the moisture content
of a sample in the normal way
(see page 7)
To remove the bias: Press while pressing . The +/- will disappear.
Note: Bias adjustments are separate for each crop and stored in the
instrument’s memory until removed as above. Bias adjustment can also be made
when using the Moisture & Temperature or Bale Moisture Probes (see Page 14).
Temperature readings cannot be adjusted.
Meter Calibration Adjustment
To increase the bias:
Press and hold to display the %H2O value
and press Λ to increase the calibration bias in
increments of 0.1
+/- appears at the top of the display to
indicate that a calibration has been
adjusted
To decrease the bias:
Press and hold and press V to decrease the
bias in increments of 0.1.

10
Temperature Correction
The Importance of Temperature
Hot meter, cold sample, low readings
Keep meters out of direct sunlight,
particularly in vehicles.
If not, readings will be too low.
Cold meter, hot sample, high readings
Grain taken from a high temperature
drier must be cooled before testing.
If not, readings will be too high.
Temperature Correction
The meter calibrations are based on oven tests at 20°C. If the sample differs
from this temperature, Automatic Temperature Correction (ATC) corrects the
moisture reading automatically.
Even with ATC on, the grain sample and the meter Grain Cell need enough time
to reach close temperature equilibrium. If there are extremes of temperature
between the sample and the instrument, check the Grain Cell temperature
reading a few times until it is constant, as follows:
Press and release . Since the grain cell is clear, the meter will read ‘U-R’.
While this is displayed, press Λ or V to put the meter in oC mode. When the
display shows , press to display the Grain Cell temperature.
ATC should always be on
To check if ATC is ON or OFF:
If ATC is ON If ATC is OFF

X
ATC
(flashing)
ATC
(NOT flashing)
 
_ _ _

11
Meter Settings
Default Settings
The Grainmaster i2-S is supplied ready-to-use with ATC on, no bias
adjustments and temperature in °C.
To alter default settings
Bias is adjusted as described on Page 9. Temperature units can be changed to
suit personal preference and ATC can be switched off in Setup Mode, as below:
To enter Setup Mode:
With the meter switched off, press and hold  and . Keep holding  and
until ‘configuration’ appears and then release both buttons at the same time.
The meter version information will appear on screen before entering the setup
menu.
The  button (Skip) is used to navigate through the setup menu.
The Λ and V buttons are used to change the selected parameter.
The button is used to save the selected parameter. Remember to press save
each time you make a change.
To exit the setup menu, keep pressing  (Skip) until you return to the standby
screen indicated by
Note: ATC should always be on during normal meter use.
Setup Menu Screenflow
_ _ _
Bluetooth: To turn on Bluetooth, turn on your meter, press and hold Λ
and then press . will appear on the screen. To turn it off do the same with
the V button. Note: Auto-off is disabled whilst Bluetooth is on.

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Care and Maintenance
Regular care and maintenance of the Grainmaster i2-S meter ensures accurate
readings.
Check the Grinder Blade and Feeder Ring
Grinder-Compressor Maintenance
The Grinder-Compressor unit should be cleaned and lubricated regularly,
especially when testing wet or oily crops. Visit www.martinlishman.com to view
an animated guide to grinder/compressor maintenance or use the following
steps:
Battery
Remove the battery if not used for long periods. When battery power is low
displays. A spare battery is included with the meter.
Separate the two halves
of the unit by twisting the
yellow locking ring
anticlockwise and pulling
apart.
Open the blade
retaining wings. Lift
out the plunger and
blade assembly.
Separate the blade
and yellow feeder ring
from the plunger.
Clean all components
with the brush.
Clean the plunger
thread and ensure it
spins freely. Lubricate
with a light oil.
A worn Grinder Blade and
Feeder Ring causes inaccurate
readings. Check regularly and
replace (see below) if worn or
damaged. A spare set is
included with the meter.

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Care and Maintenance
Calibration Check
It is rare for the meter calibration to change or the electronics to malfunction
without an obvious indication. If any ‘E’ codes display, return the instrument to
the Martin Lishman service centre.
To verify the instrument calibration:
Use the Quickcheck device with ATC on and no external probe connected.
Ensure the Grain Cell is clean and dry. Set the instrument to Wheat. Place the
Quickcheck on the Grain Cell and hold in position.
If the Grain Cell is not at 20°C:
For every whole degree above 20°C, ATC will subtract 0.1 %.
Example: Quickcheck reading is 15.8% at a cell temperature of 25°C. ATC subtracts 0.5%
from 16.3% to give 15.8%. Instrument is therefore calibrated and working correctly.
For every whole degree below 20°C, ATC will add 0.1%.
Example: Quickcheck reading is 16.6% at a cell temperature of 17°C. ATC adds 0.3% to
16.3% to give 16.6%. Instrument is therefore calibrated and working correctly.
Notes:
 If a calibration has a bias adjustment, Quickcheck readings will reflect this.
Example: Quickcheck reading is 17.1%, cell temperature is 17°C, wheat calibration is
biased +0.5%. The reading is derived from 16.3% (Quickcheck value at 20°C) + 0.5% (bias)
+ 0.3% (ATC) = 17.1%, so the meter is working correctly.
 The column coloured yellow in the Calibration Chart on Page 8 gives the
values for other crops with the Quickcheck at 20°C.
Regular Servicing and Checks
According to most crop quality assurance schemes, your moisture meter should
be checked annually against oven tested crop samples. It is also important to
ensure that vital parts such as the grinder-compressor are working correctly.
The Martin Lishman service centre is fully equipped to service your moisture
meter throughout its working life. We also conduct testing clinics at various
locations around the country where you can check your meter and obtain a test
certificate to satisfy your crop assurance scheme.
See our website for the latest clinic details and to download a service return
form.
Press . Take a reading. While the reading is visible, press Λ or V,
the display will then show 0.0, press
to display Grain Cell temperature
The reading is
16.3% at 20°C,
which is correct.

14
Optional Grain and Bale Moisture and Temperature Probes
External probes connect to the meter via the
probe socket which is protected by a blanking
grommet when not in use.
Moisture and Temperature Probe 1.5m (Part No. GRN3005)
Used with the Grainmaster i2-S to check the moisture
and temperature of grain while in the store.
Nine moisture probe calibrations are pre-programmed
into the Grainmaster i2-S: Wheat, Canola, Oilseed rape,
Barley, Oats, Linseed, Beans, Peas, 0-100 scale.
Note: Ground sample readings are more accurate
than moisture probe measurements.
Bale Moisture Probe 600mm (Part No. GRN6138)
Used with the Grainmaster i2-S to
check the moisture of straw and
hay bales. Calibrated for wheat
straw. Suitable for other baled
products.
Taking a moisture probe reading
Ensure the Grain Cell is clean. Do not touch the cell while using the probe.
Push the probe into the grain or bale and allow a few
minutes to stabilise. Connect the probe to the meter.
Press . The display will show GRAIN PROBE or BALE PROBE and
the moisture reading. Grain moisture probe only: Press Λ or V while the
reading is being displayed to switch between crop moisture and crop
temperature. If the display then reads 0.0, press . When display shows
, use Λ or V to scroll to the crop required. When ready to take
another measurement, press .
Note: Bias adjustments are made as shown on Page 9.
Care and Maintenance:
Moisture and Temperature Probe - should be kept clean of dust that may give an
inaccurate reading. Do not expose to extreme temperatures.
Bale Moisture Probe and Temperature Probes - beware sharp pointed end. Keep
covered when not in use. When removing the probe from the bale, avoid twisting the
handle.
Moisture Probes
_ _ _

15
Grain Temperature Probe 1.5m (Part No. GRN6046)
Stainless steel fast response probe used
with the Grainmaster i2-S to check the
temperature of stored grain.
Bale Temperature Probe 600mm (Part No. GRN6155)
T-Bar stainless steel fast response bale
temperature probe used with the
Grainmaster i2-S to check the
temperature of bales of hay and straw.
Suitable for other baled products.
Taking a temperature probe reading
Ensure the Grain Cell is clean. Do not touch the cell while using the probe.
Push the probe into the grain or bale and allow the temperature to stabilise.
Connect the probe to the meter.
Press . The display will show TEMP PROBE
and the temperature reading.
Note: Bias adjustment cannot be made to the temperature reading.
IMPORTANT: If the meter does not recognise the attached probe,
press 
Protimeter Balemaster (Part No.GRN6165)
The 600mm bale moisture probe is also available as a stand-
alone unit with hand-held monitor. Please ask for further
details.
Temperature Probes

16
© Martin Lishman Ltd October 2018 Protimeter Grainmaster® is a trade mark of Amphenol Advanced Sensors
Tel: + 44 (0)1778 426600 [e-mail] www.martinlishman.com
Warranty
The Grainmaster i2-S (the unit) is guaranteed for 12 months from the date of purchase against any
defect or malfunction caused by faulty parts or workmanship. To claim under warranty, the complete
unit or part should be returned, at the claimant’s expense, to Martin Lishman Ltd with a written
explanation of the problem. Should there prove to be a defect or malfunction caused by faulty parts
or workmanship, it will be repaired or replaced and returned to the claimant without charge. If a
warranty claim is rejected, the cost of replacement or repair will be notified to the claimant before any
work is carried out.
Any warranty claim will automatically be invalidated if the unit has been modified or internally
tampered with in any way. The manufacturers will not cover under warranty damage or faults
occurring to the unit which have been caused by inappropriate use or by use not in accordance with
the operating instructions for the unit.
Under no circumstances will Martin Lishman Ltd reimburse any costs associated with a warranty
claim if these costs have been incurred without agreement in advance.
Under the terms of warranty for the unit, under no circumstances will liability exceed the cost of
replacement or repair. The manufacturers and Martin Lishman Ltd will not be liable for any
consequential or indirect loss suffered by purchasers or users of the unit, whether this loss arises
from correct or incorrect use, defect or malfunction caused by faulty parts or workmanship or in any
other way. Non-exhaustive illustrations of consequential or indirect loss are loss of profits, loss of
contracts and damage to property.
The information contained in this manual is given in good faith. As the method of use of the
instrument (and its accessories) and the interpretation of the readings are beyond the control of the
manufacturers and selling agents, they cannot accept responsibility for any loss, consequential or
otherwise, resulting from its use.
Wheat: 11.3 to 29.3 Canola: 7.0 to 26.0 Coffee: 9.8 to 23.9 Rice:13.2 to 26.5
Oats: 10.9 to 29.3 Linseed: 7.0 to 16.5 Soya: 7.4 to 22.2 Sorghum: 10.2 to 26.9
OSR: 7.0 to 26.0 Sunflower: 6.2 to 23.0 Beans: 12.4 to 25.0 Paddy: 10.4 to 26.2
Barley: 10.9 to 29.3 Corn: 10.4 to 26.2 Peas: 12.0 to 30.9 0-100 relative
Specifications
% Moisture Measurement Ranges
With Bale Moisture Probe in wheat straw: 8.5 to 36.8%
Weight with grinder-compressor: 950g
Dimensions with grinder-compressor unit: 195 x 100 x 185 mm high
Power: 9V battery
Resolution: 0.1
Operating temperature range:
Meter: 0 °C to 40 °C
Grain or bale temperature probe: 0 °C to c.80 °C
Crop moisture measurement ranges - See table above or www.martinlishman.com
Accuracy: +/-0.5% (depends on maintenance and cleanliness of the grinder-compressor unit
and consistency of grain sample)