Kett HX-700 User manual

HAY MOISTURE TESTER HX-700
Operating Manual

CAUTION
HAY MOISTURE TESTER SAFETY ISSUES
Read these safety issues to avoid injury, material loss or other accidental damages.
The instrument is designed to be safe, but, nevertheless, be sure to use it only after reading these safety issues.
 MAKE SURE TO OBSERVE THE SAFETY PRECAUTIONS.
Read all the safety precautions in this manual.
 DO NOT USE THE INSTRUMENT IF A FAILURE HAS OCCURRED
Call for repair or service if a failure or a malfunction has been observed. Contact our service personnel.
 GRAPHIC SYMBOLS FOR SAFETY
To prevent damage or harm from incorrect operation of the instrument, this manual contains various graphic symbols. The symbols
concerned with safety issues are as follows.
Be sure to follow the instructions for safety reasons.

CONTANTS
1. FEATURES ................................................................... 4
2. SPECIFICATIONS ........................................................ 5
3. NOMENCLATURE ........................................................ 6
4. DISPLAY SCREEN ....................................................... 7
5. HOW TO USE THE INSTRUMENT .............................. 8
5-1. Preparation for measurement ............................... 8
5-2. How to measure ................................................... 9
5-3. Precautions for measurement .............................. 11
5-4. Display of the average .......................................... 12
5-5. How to set Continuous Measurement mode ........ 13
5-6. How to correct the moisture % display ................. 14
5-7. How to set the alarm ............................................. 15
6. ERROR DISPLAY ......................................................... 16

4
1. FEATURES
Simply inserting the probe in the hay, dried or stored, allows this instrument to display moisture content
in % by utilizing the electric resistance measurement. Very handy to use and easy to operate, it allows
you to measure hay wherever and whenever you want to.
Damp hay in storage is apt to ferment or rot, and over drying will reduce the quality. The weight fluctua-
tion of the hay due to water content is an important issue in business transactions.
HX-700 is a long, weighted instrument designed to match the needs of this industry. Make the most of
the advantages offered to you by the HX-700, whether for moisture control during storage or to check
moisture during a buying or selling transaction.
 AUTO POWER OFF FUNCTION
Tu r ns the instrument power off automatically if not operated for 5 minutes.
 ALARM SETTING INSTALLED
Buzzer alarm can be set for high moisture at 10~39%.
 WATER % CORRECTION INSTALLED
Accepts a correction in moisture % from -9.9 to +9.9%

5
2. SPECIFICATIONS
Measurement method : Electric resistance
Measurement object : Hay (Grass)
Measurement range : 8~30%
Measurement accuracy : Standard error 1.0% (20% or under)
Standard method : 135°C (275°F), 2hours
Display : Digital (LCD, The smallest display digit is 0.1%
Usable temperature : 0°C~40°C (32F~104°F)
Special features : Average display
Upper alarm setting (10~39% or off)
Automatic power off (in 5 minutes)
Moisture % correction (-9.9 to +9.9%)
Power source : 1.5V AA alkaline battery x 6
Dimension : 110(W) x 210(D) x 50(H)mm
Weight : 0.5Kg
Accessories : Probe, Shoulder strap, Carrying case, 1.5V AA alkaline battery x 3, Operat-
ing manual

6
3. NOMENCLATURE
[Instrument body] [Accessories]
Connector
Battery compartment
cover (on the back)
Display
screen
Operation
panel
Probe
Operating manual
1.5V AA alkaline
battery x 6
Carrying case
Shoulder strap

7
4. DISPLAY SCREEN
Number
Battery information
Measurement times
HAY display
Alarm setting
Moisture %
Bar graph

8
5. HOW TO USE THE INSTRUMENT
5-1. Preparation for measurement
(1) Install the six AA alkaline batteries in the battery compartment
on the back of the instrument. Remove the battery compart-
ment door and install the batter ies. Take care not to reverse
the polarity (+ & –) of the batteries. Replace the cover.
•When the batteries are worn, will blink on the display screen.
Change all batteries at the same time.
(2) Connect the probe firmly to the body. Turn the lock ring at the
base of the probe clockwise to secure the sensor probe.
(3) Take off the probe cap.
1 Tum the lock ring.
2 Insert firmly.

9
5-2. How to measure
(1) Press the key to turn the instrument power on. For 3
seconds the LCD will show all the letters and signs on it.
After that "HAY", "TIMES" and "%" will be displayed.
•If the LCD wouldn't start up as described here, there might be an
error occurring in the instrument. Refer to "6. Error display" .
(2) Insert the probe in the hay.
•The top of the probe has a sharp edge. Take good care not to
damage anything while measuring. Be sure to put the cap on
after use.

10
(3) Press the or key, the decimal point will blink.
In about 3 seconds after a short beep, "Measurement Times",
"Moisture %" and "Bar Graph" will be displayed.
•The bar graph increment is 2%, and capable of displaying 50% at
maximum.
•If the measurement result is out of the range, "HI" for exceeding
and "LO" for lower than will be displayed.
(4) Pull the probe out of the hay. The last moisture % will remain
displayed. To continue the measurement, insert the probe again
in the hay, as per (2) above.
Tu rn the power off pressing the key after you have
finished measurement.
•This instrument turns the power off automatically after being left
unused for 5 minutes.
 shows that either numbers or
marks enclosed are blinking.

11
5-3. Precautions for measurement
(1) Insert the probe at the outer surface of the hay roll.
Other ways of measurement may result in errors.
(2) If it is difficult to insert, try other angles or make a hole with a sharp stick before inserting the probe.

12
5-4. Display of the average
After measurement has been done 2~9 times, you can display
the average by pressing the key. The key will display
"AVE" "Calculated average" and "Measurement times". After 9
times the "Measurement times" display will return to 1.

13
5-5. How to set Continuous Measurement mode
In this mode, you don't have to press the or the key every time for measurement.
(1) To set the continuous measurement mode;
After the operation of "5-2 Measurement (3), press the
key, the decimal point will blink and the bar graph will appear.
"LO" will be displayed if the probe is off the sample or the sample
moisture is lower than the measurement range.
(2) To release the continuous measurement mode;
Press the key for more than 2 seconds until a short
beep is heard, the display will be off for a moment and return to
the normal measurement mode when the pressed key is re-
leased.
• Turning off the instrument power will switch off the con-
tinuous measurement mode.
•Continuous mode consumes battery power faster. A new set of
batteries will last about 24 hours in this mode at 20°C (68°F).  shows that either numbers or
marks enclosed are blinking.

14
5-6. How to correct the moisture % display
The calibration of the instrument is a statistically calculated correlation of the dry process measurement data
and the corresponding electric resistance. However the measurement results may differ from the actual
moisture, being affected by many aspects of the hay and the environment at the measurement site. In such
cases, the moisture % display can accept a bias correction (–9.9~9.9%) described as follows.
(1) Press the key.
"BIAS" on the display will blink and display the corrected value
which was last entered. 0.0% is the default value.
(2) Enter the correction value.
Enter 2-digit value. Press the and the key
for 2.0% for instance. If entering a minus correction press the
key before entering the numeric value.
(3) Press the or the key to start the corrected
measurement.
•"BIAS" will be displayed during measurement.
 shows that either numbers or
marks enclosed are blinking.

15
5-7. How to set the alarm
The upper moisture limit alarm can be set. A series of short beep sounds let you know the sample is over the
limit.
(1) Press the key.
The number to the right of "ALARM" will blink.
(2) Enter the limit value.
Enter 2-digit number of the limit. Press the and
key to enter 20% for instance.
(3) Press the or the key to start the measure-
ment.
•To release the alarm setting, enter "0.0%".  shows that either numbers or
marks enclosed are blinking.

16
6. ERROR DISPLAY
If an error has occurred in the instrument or in the measurement conditions, either of the following messages
will appear for 4 seconds before turning the power off automatically.
(1) The temperature sensor has an error. Call for repair.
(2) The electric circuit for measuring moisture has an error. Call
for repair.

17
(3) The instrument temperature is –5°C (23°F) or lower. Warm the
instrument up to the usable ambient temperature range 0~40°C
(32~104°F).
(4) The instrument temperature is 50°C (122°F) or higher. Cool
down the instrument to the usable ambient temperature range
0~40°C (32~104°F).

MEMO

0809•PA•0102•100