background image

HOBO

 

MX

 

Soil

 

Moisture

 

(MX2306)

 

and

 

MX

 

Soil

 

Moisture

 

and

 

Temperature

 

(MX2307)

 

Data

 

Logger

 

Manual

 

1

508

759

9500

 

(U.S.

 

and

 

International)

 

5

 

www.onsetcomp.com

 

1

800

LOGGERS

 

(U.S.

 

only)

 

                                                                                                                                                                

logger

 

is

 

pressed

 

to

 

wake

 

it

 

up,

 

thereby

 

preserving

 

as

 

much

 

battery

 

power

 

as

 

possible.

 

12.

 

Select

 

Soil

 

Type:

 

 

Mineral

 

 

for

 

common

 

soils,

 

with

 

EC

 

values

 

up

 

to

 

8

 

dS/m.

  

 

Soilless

 

 

for

 

potting

 

soils,

 

perlite,

 

and

 

peat

 

moss

 

with

 

EC

 

values

 

up

 

to

 

8

 

dS/m.

  

 

Apparent

 

Dielectric

 

Permittivity

 

  

raw

 

measurements

 

that

 

can

 

be

 

used

 

in

 

published

 

equations

 

such

 

as

 

the

 

Topp

 

equation

 

to

 

derive

 

soil

 

moisture

 

data.

  

13.

 

Enable

 

or

 

disable

 

Percent

 

of

 

Field

 

Capacity

 

 

To

 

see

 

soil

 

moisture

 

as

 

the

 

percent

 

of

 

field

 

capacity,

 

enable

 

this

 

and

 

enter

 

the

 

field

 

capacity

 

for

 

the

 

soil

 

at

 

the

 

site

 

in

 

Volumetric

 

Water

 

Content

 

on

 

a

 

scale

 

of

 

0.01

 

to

 

1.00.

 

Note

 

that

 

the

 

Percent

 

of

 

Field

 

Capacity

 

values

 

reported

 

will

 

be

 

limited

 

to

 

the

 

range

 

of

 

0%

 

to

 

200%.

 

If

 

you

 

selected

 

Apparent

 

Dielectric

 

Permittivity

 

as

 

your

 

soil

 

type,

 

the

 

option

 

for

 

Percent

 

of

 

Field

 

Capacity

 

is

 

disabled.

  

14.

 

Select

 

whether

 

to

 

upload

 

data

 

via

 

the

 

HOBOconnect

 

app

 

or

 

the

 

MX

 

Gateway.

 

Using

 

the

 

MX

 

Gateway

 

requires

 

a

 

HOBOlink

 

account.

  

15.

 

Enable/Disable

 

the

 

sensors

 

that

 

will

 

be

 

logged

 

(MX2307

 

model)

 

and

 

set

 

up

 

any

 

alarms

 

to

 

trip

 

when

 

a

 

sensor

 

reading

 

rises

 

above

 

or

 

falls

 

below

 

a

 

specified

 

value.

 

See

 

Setting

 

up

 

Alarms

 

for

 

details

 

on

 

enabling

 

sensor

 

alarms.

 

Note

 

that

 

for

 

the

 

MX2307,

 

temperature

 

is

 

shown

 

as

 

channel

 

3.

 

This

 

is

 

because

 

channel

 

2

 

is

 

reserved

 

for

 

Apparent

 

Dielectric

 

Permittivity,

 

if

 

that

 

is

 

selected.

  

16.

 

Tap

 

 

to

 

save

 

the

 

configuration

 

settings,

 

and

 

start

 

logging

 

based

 

on

 

the

 

settings

 

you

 

selected.

 

Press

 

the

 

start

 

button

 

on

 

the

 

logger

 

if

 

it

 

was

 

set

 

up

 

to

 

start

 

logging

 

with

 

a

 

button

 

push.

 

See

 

Deploying

 

and

 

Mounting

 

the

 

Logger

 

for

 

details

 

on

 

mounting

 

and

 

see

 

Reading

 

Out

 

the

 

Logger

 

for

 

details

 

on

 

downloading.

 

Setting

 

up

 

Alarms

 

You

 

can

 

set

 

up

 

alarms

 

for

 

the

 

logger

 

so

 

that

 

if

 

a

 

sensor

 

reading

 

rises

 

above

 

or

 

falls

 

below

 

a

 

specified

 

value,

 

the

 

logger

 

alarm

 

LED

 

will

 

blink

 

and

 

an

 

alarm

 

icon

 

will

 

appear

 

in

 

the

 

app.

 

This

 

can

 

alert

 

you

 

to

 

problems

 

so

 

you

 

can

 

take

 

corrective

 

action.

 

To

 

set

 

an

 

alarm:

 

1.

 

Tap

 

Devices.

 

Press

 

the

 

button

 

on

 

the

 

logger

 

to

 

wake

 

it

 

up

 

(if

 

necessary).

 

2.

 

Tap

 

the

 

logger

 

in

 

the

 

app

 

to

 

connect

 

to

 

it

 

and

 

tap

 

.

 

3.

 

Tap

 

a

 

sensor

 

(tap

 

the

 

Enable

 

Logging

 

toggle

 

if

 

necessary).

 

4.

 

Select

 

High

 

if

 

you

 

want

 

an

 

alarm

 

to

 

trip

 

when

 

the

 

sensor

 

reading

 

rises

 

above

 

the

 

high

 

alarm

 

value.

 

Drag

 

the

 

slider

 

or

 

type

 

a

 

value

 

to

 

set

 

the

 

high

 

alarm

 

value.

 

5.

 

Select

 

Low

 

if

 

you

 

want

 

an

 

alarm

 

to

 

trip

 

when

 

the

 

sensor

 

reading

 

falls

 

below

 

the

 

low

 

alarm

 

value.

 

Drag

 

the

 

slider

 

or

 

type

 

a

 

value

 

to

 

set

 

the

 

low

 

alarm

 

value.

 

6.

 

For

 

the

 

Duration,

 

select

 

how

 

much

 

time

 

should

 

elapse

 

before

 

the

 

alarm

 

trips,

 

and

 

select

 

one

 

of

 

the

 

following:

 

 

Cumulative.

 

The

 

alarm

 

will

 

trip

 

once

 

the

 

sensor

 

reading

 

is

 

out

 

of

 

the

 

acceptable

 

range

 

for

 

the

 

selected

 

duration

 

any

 

time

 

during

 

logging.

 

For

 

example,

 

if

 

the

 

low

 

alarm

 

is

 

set

 

to

 

0.05

 

m³/m³

 

for

 

a

 

soil

 

moisture

 

alarm

 

and

 

the

 

duration

 

is

 

set

 

to

 

30

 

minutes,

 

the

 

alarm

 

will

 

trip

 

once

 

the

 

sensor

 

readings

 

have

 

been

 

below

 

0.05

 

m³/m

 

for

 

a

 

total

 

of

 

30

 

minutes

 

since

 

the

 

logger

 

was

 

started.

 

 

Consecutive.

 

The

 

alarm

 

will

 

trip

 

once

 

the

 

sensor

 

reading

 

is

 

out

 

of

 

the

 

acceptable

 

range

 

continuously

 

for

 

the

 

selected

 

duration.

 

For

 

example,

 

if

 

the

 

low

 

alarm

 

is

 

set

 

to

 

0.05

 

m³/m³

 

for

 

a

 

soil

 

moisture

 

alarm

 

and

 

the

 

duration

 

is

 

set

 

to

 

30

 

minutes,

 

the

 

alarm

 

will

 

only

 

trip

 

if

 

all

 

sensor

 

readings

 

have

 

been

 

below

 

0.05

 

m³/m

 

for

 

a

 

continuous

 

30

minute

 

period.

 

7.

 

Tap

 

Save.

 

For

 

MX2307

 

models,

 

repeat

 

steps

 

3–7

 

for

 

the

 

other

 

sensor

 

if

 

desired.

 

8.

 

In

 

the

 

configuration

 

settings,

 

select

 

one

 

of

 

the

 

following

 

options

 

to

 

determine

 

how

 

the

 

alarm

 

indications

 

are

 

cleared:

 

 

Logger

 

Reconfigured.

 

The

 

alarm

 

icon

 

indication

 

will

 

display

 

until

 

the

 

next

 

time

 

the

 

logger

 

is

 

reconfigured.

 

 

Sensor

 

in

 

Limits.

 

The

 

alarm

 

icon

 

indication

 

will

 

display

 

until

 

the

 

sensor

 

reading

 

returns

 

to

 

the

 

normal

 

range

 

between

 

any

 

configured

 

high

 

and

 

low

 

alarm

 

limits.

 

When

 

an

 

alarm

 

trips,

 

the

 

logger

 

alarm

 

LED

 

blinks

 

every

 

4

 

seconds

 

(unless

 

Show

 

LED

 

is

 

disabled),

 

an

 

alarm

 

icon

 

appears

 

in

 

the

 

app,

 

and

 

an

 

Alarm

 

Tripped

 

event

 

is

 

logged.

 

The

 

alarm

 

state

 

will

 

clear

 

when

 

the

 

readings

 

return

 

to

 

normal

 

if

  

Sensor

 

in

 

Limits

 

was

 

selected

 

in

 

step

 

8.

 

Otherwise,

 

the

 

alarm

 

state

 

will

 

remain

 

in

 

place

 

until

 

the

 

logger

 

is

 

reconfigured.

 

Notes:

 

 

Alarm

 

limits

 

are

 

checked

 

at

 

every

 

logging

 

interval.

 

For

 

example,

 

if

 

the

 

logging

 

interval

 

is

 

set

 

to

 

5

 

minutes,

 

the

 

logger

 

will

 

check

 

the

 

sensor

 

readings

 

against

 

the

  

configured

 

high

 

and

 

low

 

alarm

 

setting

 

every

 

5

 

minutes.

 

 

The

 

actual

 

values

 

for

 

the

 

high

 

and

 

low

 

alarm

 

limits

 

are

 

set

 

to

 

the

 

closest

 

value

 

supported

 

by

 

the

 

logger.

 

In

 

addition,

 

alarms

 

can

 

trip

 

or

 

clear

 

when

 

the

 

sensor

 

reading

 

is

 

within

 

the

 

resolution

 

specifications.

 

 

When

 

reading

 

out

 

the

 

logger,

 

alarm

 

events

 

can

 

be

 

displayed

 

on

 

the

 

plot

 

or

 

in

 

the

 

data

 

file.

 

See

 

Logger

 

Events

.

 

Burst

 

Logging

 

Burst

 

logging

 

is

 

a

 

logging

 

mode

 

that

 

allows

 

you

 

to

 

set

 

up

 

more

 

frequent

 

logging

 

when

 

a

 

specified

 

condition

 

is

 

met.

 

For

 

example,

 

an

 

MX2307

 

logger

 

is

 

recording

 

data

 

at

 

a

 

5

minute

 

logging

 

interval

 

and

 

burst

 

logging

 

is

 

configured

 

to

 

log

 

every

 

30

 

seconds

 

when

 

the

 

temperature

 

rises

 

above

 

85°F

 

(the

 

high

 

limit)

 

or

 

falls

 

below

 

32°F

 

(the

 

low

 

limit).

 

This

 

means

 

the

 

logger

 

will

 

record

 

data

 

every

 

5

 

minutes

 

as

 

long

 

as

 

the

 

temperature

 

remains

 

between

 

85°F

 

and

 

32°F.

 

Once

 

the

 

temperature

 

rises

 

above

 

85°F,

 

the

 

logger

 

will

 

switch

 

to

 

the

 

faster

 

logging

 

rate

 

and

 

record

 

data

 

every

 

30

 

seconds

 

until

 

the

 

temperature

 

falls

 

back

 

to

 

85°F.

 

At

 

that

 

time,

 

logging

 

resumes

 

every

 

5

 

minutes

 

at

 

the

 

normal

 

logging

 

interval.

 

Similarly,

 

if

 

the

 

temperature

 

falls

 

below

 

32°F,

 

the

 

logger

 

would

 

switch

 

to

 

burst

 

logging

 

mode

 

again

 

and

 

record

 

data

 

every

 

30

 

seconds.

 

Once

 

the

 

temperature

 

rises

 

back

 

to

 

32°F,

 

the

 

logger

 

will

 

return

 

to

 

normal

 

mode,

 

logging

 

every

 

5

 

minutes.

 

Note:

 

Sensor

 

alarms,

 

statistics,

 

and

 

the

 

Stop

 

Logging

 

option

 

“Wrap

 

When

 

Full”

 

are

 

not

 

available

 

in

 

burst

 

logging

 

mode.

 

Summary of Contents for MX2306

Page 1: ...Hz Volume of Influence 430 ml Percent of Field Capacity for VWC measurements only Range 0 to 200 Resolution 0 1 Temperature Sensor MX2307 Range 40 to 100 C 40 to 212 F with tip and cable immersion in...

Page 2: ...NEMA 6 and IP67 Soil Moisture sensor and cable 40 to 60 C 40 to 140 F Temperature sensor and cable MX2307 Immersion in water up to 50 C 122 F for 1 year The CE Marking identifies this product as comp...

Page 3: ...com products software hoboconnect 2 Open the app and enable Bluetooth in the device settings if prompted 3 Press the button on the logger to wake it up 4 Tap Devices and then tap the logger in the ap...

Page 4: ...ion settings are loaded on the logger The data will start with this indetermined time and at the selected logging interval from there On Next Logging Interval This is the most common start option Logg...

Page 5: ...n any time during logging For example if the low alarm is set to 0 05 m m for a soil moisture alarm and the duration is set to 30 minutes the alarm will trip once the sensor readings have been below 0...

Page 6: ...g During fixed logging the logger records data for enabled sensors and or selected statistics at the logging interval selected Statistics are calculated at a sampling rate you specify with the results...

Page 7: ...ger records the following internal events to track logger operation and status You can view events in exported files or plot events in the app To plot events tap HOBO Files and select a file to open T...

Page 8: ...the sensor body in a horizontal position will provide measurements at a more discreet depth Avoid any metal located between the sensor and the ferrite core because it can interfere with VWC measuremen...

Page 9: ...not cut open incinerate heat above 85 C 185 F or recharge the lithium battery The battery may explode if the logger is exposed to extreme heat or conditions that could damage or destroy the battery c...

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