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

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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

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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!

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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

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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
+
+

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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

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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.

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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.

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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)
 
_ _ _