4 en 1 Soil Survey Instrument
Operation Manual SR-300B
Overview
The 4 in 1 soil survey instrument can test moisture of soil, pH value,
temperature and environment sunlight intensity using a probe with the length
of 200mm. The unit with backlight function can easily display various readings
with the oversize LCD.
The unit also has low battery indication and auto power off function. It is with
reliable performance, easy to carry and easy to operate. It also can do fast and
precise measuring, The unit is a good companion for flowers and grasses
planting and garden virescence.
Tool Components
A)
PH/TEMP KEY
--- mode switch: Set the mode for pH Value, temperature
or moisture
B)
ON KEY
--- press the key to start the unit.
C)
TEST PROBE
---can test pH value, moisture and temperature.
D)
LIGHT SENSOR WINDOW
--- can induct sunlight intensity of measured
environment.
E) LCD SCREEN WITH BACKLIGHT
F)
°C/°F OFF KEY
--- temperature unit switch/power OFF key: under
temperature mode, press the key to select temperature unit is °C or °F (the
default temperature unit is °C). Keep pressing the key for about 3 seconds
to power off.
G)
PROTECTION BUSHING
--- Please take the protecting bushing away
when using the test probe. Put on the protecting bushing when it is not in
use to protect the test probe (accessory).
Illustration of the display screen
A) Sunlight intensity display area ----- 9 levels: LOW-, LOW, LOW+, NOR·,
NOR, NOR+,HGH-, HGH, HGH+, each increasing in amount and quality.
LOW- means an extremely dim environment. HGH+ means an extremely
bright environment.
B) pH function display
C) pH or temperature value display ----- It shows 3,5 to 9,0 for pH value and
-9°C to +50°C (16°F to 122°F) for temperature. When showing "Lo" or
"HH", it means the value is beyond the measurable range.
D) Moisture display area ----- 5 levels: DRY+, DRY, NOR, WET, WET+, each
increasing in wetness. WET+ means an extremely wet environment while
DRY + means an extremily dry environment.
E) Temperature function display.
F) aLow battery display ----- The symbol will display on the LCD continuously
when the battery is low.
How to use
Please install one 9 V battery before use
Battery installation
Open the battery compartment door on the back of the tool and plug one 9 volt
block battery onto the battery connector. Put the battery back to the
compartment and close the door.
Operation Guide
1. Operation for sunlight measurement
a) Press the ON button to start the unit
b) Point the light sensor window toward max light source
c) The current light intensity will be shown on the LCD
Tips: please do not obstruct or cast a shadow over the light sensor
2. Operation for pH value
a) Switch the pH/TEMP button on the back of the unit to pH function
b) Push the probe down as vertically as possible into the soil which needed to
be tested. Do not push the probe too near the stem to avois damage to the
plant roots.
c) Press ON button to start the unit.
d) pH value of the tested soil will be displayed on the LCD.
e) Take several readings to confirm your findings.
Tips:
1 - Insert the probe straight up and down, about halfway between the plant
stem and the edge of the pot. For pots over 30cm in diameter, position the
probe about a third of the way between the stem and the edge of the pot.
For a deep pot, insert the probe more deeply aiming for where the heaviest
root concentration is likely to be.
2 - Please softly push the probe into the soil to avoid damage to the probe.
3 - If the tested soil is extremely dry or too fertile and can't be tested the pH
value, the user should sprinkle some water into the soil. Test again after half
an hour.
3.
Moisture measurement
a) Switch the pH/TEMP button on the back of the unit to TEMP position.
b) Push the probe down as vertically as possible into the soil which needed to
be tested. Do not push the probe too near the stem to avois damage to the
plant roots.
c) Press ON button to start the unit.
d) Moisture of the tested soil will be displayed on the LCD
e) Take several readings to confirm your findings.
Tips :
1-Insert the probe straight up and down, about halfway between the plant
stem and the edge of the pot. For pots over 30cm in diameter, position the
probe about a third of the way between the stem and the edge of the pot.
For a deep pot, insert the probe more deeply aiming for where the heaviest
root concentration is likely to be.
2- Please softly push the probe into the soil to avoid damage to the probe.
4. Temperature of the soil measurement
a) While testing moisture, the temperature of the soil will be displayedon the
LCD at the same time.
b) Press °C/°F OFF button to set the unit temperature to °C or °F
Tips: If the user doesn't push the probe into the soil, the current
environment temperature will be displayed on the LCD.
Interpret environment sunlight intensity reading
Appropriate light does well in plant's growth (some plants need more light than
others). The unit has graduated the environment light and displays according to
intensity, which can offer reference for your plant's growth.
Here is the list:
===========> Increse in amount and quality of light
LOW- LOW LOW+ NOR-
NOR
NOR+ HIGH- HIGH HIGH+
very
low
much slightly normal slightly much
high
very
