Extech Instruments ExStik EC505 Bedienungsanleitung

r M

500

ondu

AdditionalUserManualTranslationsavailableatwww.extech.com

EC500

500-en-G

_v2.7 12/16

cti

ongratulat

ons on your purchase of the

500 pH/

onduct

ty/Total

ssolved

) /

ty meter. W

th the

500

’

s dynam

c cell-constant technology

s poss

ble to

measure a w

de range of

onduct

ty, T

, and

ty w

th the same electrode.

areful use

and ma

ntenance w

ll prov

de years of rel

able serv

ce.

g t

™

The

uses four (4)

R2032 L

um Ion

atter

es (

ncluded). If the batter

es are weak, the

‘

’

cator appears on the L

ress the ON/O

key to turn the

on or off. The auto

power off feature shuts the

off automat

cally after 10 m

nutes of

nact

ty to preserve battery

fe.

tti



Remove the cap from the bottom of the

k to expose the pH electrode, reference junct

and conduct

ty electrodes.



efore the f

rst use or after storage, soak the electrode

n tap water or pH 4 buffer solut

on for

about 10 m

nutes.



L crystals may be present

n the cap or on the electrode. Th

s to be expected

depend

ng on the length of t

n storage. These crystals w

ll d

ssolve wh

le soak

ng the

electrode or they can be r

nsed away w

th tap water.



or best results cal

brate w

th pH 7 buffer solut

on f

rst, then cal

brate w

th the buffer solut

closest to the expected pH value of the solut

on or mater

al to be tested.



To preserve the pH electrode l

fe keep the sponge

n the protect

ve cap soaked w

th tap water

or pH 4 buffer solut

on.



or best results, cal

brate for conduct

ty w

th a standard

n the expected range of the sample.

or max

mum accuracy cal

brate from low conduct

ty value standards to h

gh value

standards.

500-en-G

_v2.7 12/16

EC500

cripti

escri

attery compartment cover

2. L

splay

3. MO

/HOL

button

L/R

ECA

LL button

5. ON/O

button

lectrode

ollar

7. pH/

onduct

lectrode

(Note: The

lectrode cap

s not shown)

lay

argraph d

splay

2. Measurement un

3. Ma

n d

splay

4. Range cal

brat

on and

low battery

cators

5. Temperature d

splay

6. Renew

cator

7. Read

ng hold

cator

RENEW

500-en-G

_v2.7 12/16

8888

Conductivity

TDS

Salinity PH

L M H

(ppm) (mg/l)

mgL

eas

arati

onduct

ty, T

ty place the test sample

n a sample

cup w

th enough depth (2.5cm m

mum) to cover the electrode.

the solut

on to remove any a

r bubbles.

or pH, place the t

p of the electrode

n the sample or make contact

th a wet surface.

Meas

reme

ress the

button. ( and then “

L” w

ll appear

n the

splay dur

ng the turn-on d

agnost

cs)

epress and hold the

key to scroll to the des

red

measurement mode.

3. Insert the electrode

nto the sample mak

ng sure that the electrodes are

completely submersed.

lowly st

r the solut

on w

th the electrode to remove a

r bubbles

n the

onduct

ty, T

ty mode.

5. If

n the

onduct

ty, T

ty modes, the meter w

ll auto-range

to the proper range and then d

splay the read

ng.

EC500

500-en-G

_v2.7 12/16

Meas

reme

Fun

cti

The meter can be set to measure pH,

onduct

ty, T

ty.

To change the mode:

ress and Hold the

button for 2 seconds and the d

splay w

ll beg

n to scroll

through the un

ts.

(

onduct

ty);

;

(

ty);

);

The “HOL

” funct

on cannot be on when chang

ng the measurement funct

on. If “HOL

”

splayed

n the lower left corner of the d

splay, br

efly press the MO

button to turn

t off.

2. When the des

red un

ts are d

splayed, release the MO

button.

sati

ati

The T

value

s determ

ned by mult

ply

ng a conduct

ty read

ng by a known rat

o factor. The

meter allows for select

ng a convers

on rat

n the range of 0.4 to 1.0. The rat

o var

es w

th the

appl

cat

on, but

s typ

cally set between 0.5 and 0.7.

Note: The stored rat

o w

ll br

efly appear

n the lower temperature d

splay when the meter

s f

rst

turned on, or when chang

ng measurement funct

on to T

ali

ity m

e t

e rati

is 0.4 t

0.6 a

To change the rat

o, wh

n the T

measurement mode (ppm or mg/l):

ress and release the

REC

button tw

n success

on. The stored

rat

o w

ll appear

n the d

splay.

ress the MO

button to

ncrease the rat

o value

n steps of 0.1.

3. When the des

red rat

s d

splayed, press and release the

REC

button to store the value and return to the normal mode.

4. If no buttons are pressed for 5 seconds, the meter returns to measure mode.

ress the MO

button to store a read

ng. The storage locat

number w

ll be d

splayed on the lower d

splay, wh

le the ma

n d

splay shows

the stored read

ng. The meter w

ll enter the HOL

mode and the “HOL

”

cator w

ll appear.

ress the MO

button aga

n to ex

t the HOL

mode and return to

normal operat

on.

3. If more than 25 read

ngs are stored, prev

ously stored read

ngs (start

ng w

number 1) w

ll be overwr

tten.

500-en-G

_v2.7 12/16

eca

lli

ress the

REC

button and then press the MO

button.

locat

on number (1

through 25) w

ll br

efly appear and then the value stored

n that locat

on w

ll appear. The

splayed un

ts w

ll flash,

cat

ng that the storage recall mode

s act

ve.

2. The last stored read

ng w

ll be d

splayed f

rst.

ress

ng and releas

ng the MO

button

ll scroll through the stored read

ngs one at a t

me. The locat

on number

s d

splayed f

rst,

followed by the read

ng stored

n that locat

on.

3. To ex

t the storage mode, press the

REC

button and the meter w

ll return to normal

operat

on, after d

splay

ng “

nd”.

lear

Mem

th the un

t on, press and hold ON/O

for 4 seconds. “clr” w

ll be br

efly d

splayed when the

memory

s cleared.

erat

its

To change the d

splayed temperature un

ts (

1. W

th the un

t O

, press and hold down the

REC

button.

2. W

th the

REC

button depressed momentar

ly press the O

button. When “

L” appears

n the d

splay release the

REC

button. The un

t w

ll power on w

temperature d

splayed

n the new un

ts.

ata

ress the MO

button to hold (freeze) a read

n the d

splay. The meter w

ll enter the

HOL

mode and the “HOL

”

cator w

ll appear.

Note: Th

s also stores the read

ng.

ress the MO

button aga

n to return to normal operat

on.

er O

The auto power off feature automat

cally shuts the meter off 10 m

nutes after the most recent button

press.

er O

isa

To d

sable the

uto

ower Off feature:

1. Turn the un

t on

ress

REC

once (Q

ickly)

3. Immed

ately and s

multaneously press the MO

and O

buttons for

approx

mately 2 seconds, unt

l “

oFF

”

s br

efly d

splayed

To d

sengage th

s feature, turn the un

t off w

th the O

button. The next t

me the un

powered up,

uto

ower O

mode w

ll be engaged aga

attery I

icati

When the batter

es become weak the “

T”

con w

ll appear

n the d

splay. Refer to the

ntenance sect

on for battery replacement

nformat

on.

19.5°

500-en-G

_v2.7 12/16

ali

rati

(1, 2,

r 3

ts)

lace the electrode

nto a buffer solut

on (4, 7, or 10).

ress and hold the

REC

key

unt

l “

L” appears

n the lower (temp.) d

splay. When do

ng a 2 or 3 po

nt cal

brat

on, cal

brate

th pH 7 buffer f

rst, then follow w

th pH 4 then the pH 10 buffer.

2. The

automat

cally recogn

zes the solut

on and cal

brates

tself to that value (the c

rcled

number on the L

ll match the solut

on). Note that

f the solut

s more than 1 pH un

t off

from the L (4), M (7), or H (10) pH buffer, or

f the electrode slope

s low, the

assume an error and abort the cal

brat

on (

‘

’

ll be d

splayed, and the un

t w

ll return to

measure mode.)

ng cal

brat

on, the pH read

ng flashes on the ma

n d

splay.

4. When cal

brat

s complete, the

automat

cally d

splays “

”, then “

nd” and returns

to normal operat

on mode.

5. The appropr

ate c

rcled

cator (L, M, or H) appears on the L

when a part

cular cal

brat

or ser

es of cal

brat

ons has been completed w

n one power on cycle. When the

turned off, the c

rcled

cator conf

gurat

on and the cal

brat

on data w

ll be reta

ned.

or a two or three po

nt cal

brat

on, repeat steps 1-4.

eset

ali

rati

ata to clear all cal

brat

on data from the meter.

emi

lay

When

n pH measurement mode, a “

L”

con w

ll appear after 15 on/off cycles of the meter w

thout

perform

ng a cal

brat

on. The

L d

splay

s s

mply a rem

nder to cal

brate pH, and w

ll turn off when

the pH electrode

s recal

brated. The rem

nder does not affect funct

n any way.

lay

flash

‘

’

warn

cates that the probe

s not perform

ng to expected spec

cat

ons. If

clean

ng and recal

brat

on does not cause the R

con to d

sappear, replace the probe (see

opt

onal accessor

es on the last page of th

s manual). The R

W d

splay appears as a result of

the pH electrode slope fall

ng below 70% of a nom

nal slope.

Meas

reme

t a

lay

erati



If the un

t appears to be locked (d

splay frozen). It

s poss

ble that the

ata Hold mode has

been

nadvertently accessed by press

ng the MO

button. (“HOL

” w

ll be d

splayed

n the bottom left of the L

mply press the MO

button aga

n or turn the meter off

and then on.



or max

mum accuracy, allow suff

ent t

me for the temperature of the probe to reach the

temperature of the sample before cal

brat

ng. Th

s w

ll be

cated by a stable temperature

read

ng on the d

splay.

eset

ali

rati

ata

ollow th

s procedure to clear all cal

brat

on data from the meter. Resett

ng the cal

brat

on data may

be necessary when new cal

brat

on solut

ons are used or accuracy of measurements

n quest

on.

1. Turn off the meter.

ress and Hold the

al/Recall and Mode/Hold buttons.

3. Momentar

ly press the On/Off button, as soon as the d

splay comes on, release all 3

buttons.

4. The d

splay w

ll show “

dFL

t r

t” (default reset) and all of the cal

brat

on data w

ll be erased.

If “

dFL

t r

t” does not appear, retry the procedure.

roceed to the cal

brat

on rout

ne for pH and

onduct

ty.

500-en-G

_v2.7 12/16

ali

rati

ondu

ctivity

Meter accuracy ver

cat

on should be performed on a per

c bas

s. Once per month

s the

recommended cycle for normal use. If cal

brat

s requ

red, a conduct

ty standard

ng solut

must be obta

ned. The meter can be cal

brated

n any or all of the three ranges.

tandard

solut

ons of 84µ

/cm, 1413µ

/cm or 12.88m

/cm (12,880µ

/cm) are used for the automat

cal

brat

on recogn

on procedure. No other cal

brat

on values are perm

tted.

brat

s always done

n conduct

ty mode.

nce sal

ty and T

values are calculated from

conduct

ty values, th

s procedure also cal

brates the sal

ty and T

ranges.

ll a sample cup w

th the standard

ng solut

on.

2. Turn the meter ON and

nsert the electrode

nto the solut

on. Tap or move the electrode

n the

sample to d

slodge any a

r bubbles.

ress and hold the

REC

button (approx

mately 2 seconds) unt

l “

L” appears

the lower (temp) d

splay. The ma

n d

splay w

ll start flash

ng.

4. The meter w

ll automat

cally recogn

ze and cal

brate to the standard

ng solut

on. The d

splay

ll br

efly

cate “

”,

nd and then return to the measurement mode after a cal

brat

on.

Note: The “

” w

ll not appear

f the cal

brat

on fa

ls.

5. The “range cal

brated” symbol w

ll appear

n the d

splay for each range that

s cal

brated

dur

ng that power on cycle.

Low range, 84µ

/cm

Med

um range, 1413µ

/cm

gh range, 12.88m

/cm (12,880µ

/cm)

Note:

ach t

me the cal

brat

on mode

s entered all cal

brat

on symbols on the d

splay are cleared,

but only the cal

brat

on data for the currently cal

brated range

s replaced. The other two ranges

keep the ex

ng cal

brat

on data, just the symbols are removed.

brat

on of all three ranges must

be performed dur

ng one power on per

od for all three range cal

brat

on symbols to appear.

eset

ali

rati

ata to clear all cal

brat

on data from the meter.

Note: The meter allows for a 1, 2 or 3 po

nt cal

brat

on. If cal

brat

s done for more than one po

the lowest value standard should be done f

rst to obta

n the best accuracy.



o not touch the

nner surfaces of the conduct

ty electrodes. Touch

ng the surface of the

plat

zed electodes may damage and reduce the l

fe of the probe.



tore the electrode

n the wett

ng cap w

th the sponge mo

stened w

th pH 4.01 buffer solut

on.



lways r

nse the electrode

n de-

zed water between measurements to avo

d cross

contam

nat

on of the sample.

ouble r

s recommended when h

gh accuracy

s requ

red.



cally, accumulated salt depos

ts from the reference electrode may bu

ld up

n the

storage cap, and should be r

nsed away. These depos

ts could affect measured values of low

conduct

ty samples.



When measur

ng low conduct

ty samples, extra care

s recommended

n r

ng the probe to

avo

d contam

nat

on of the sample w

th electrolyte from the pH reference electrode. Th

s w

only be a factor when measur

n the low range, and can be further m

zed by

ncreas

the volume of the sample. (

xample: Try a 200 to 500 mL sample.)



If the 20mL sample cup

s to be used, then the electrode should not be allowed to s

n the

sample for any longer than necessary, to avo

d pH electrolyte leakage

nto the sample, ra

the conduct

ty value.

500-en-G

_v2.7 12/16

tri

Fun

cti

lti

cti

tat

etti

ired

ress

On/Off On

or Off

ny Momentary press of the ON/O

key

brat

on On pH or

onduct

ress

hold

L/R

LL key for 2

seconds, unt

t enters

L funct

tore Read

ng On

ny measure

mode

Momentary press of the

/HOL

key

Hold Release On Wh

le In Hold

Mode

Momentary press of the

/HOL

key

nter Memory

Retr

eval

ny measure

mode

Momentary press of the

L/R

LL key followed by a

momentary press of the

/HOL

key (W

n 4 seconds)

croll

tored

Read

ngs

On Memory

Recall

Momentary press of the

/HOL

key

(

splays “last

n f

rst out”)

t Memory

Retr

eval

On Memory

Recall

Momentary press of the

L/R

LL key

lear

tored

Memory

ny Measure

Mode

ress and hold the ON/O

key for 4

seconds, unt

l “clr”

s d

splayed.

hange

Measurement Mode

ress and hold the MO

/HOL

key

for at least 2 seconds (the modes w

scroll by unt

l the key

s released)

nter

ond/T

Rat

On T

(ppm or

mg/l)

ress and release the

L/R

key tw

n qu

ck success

hange

ond/T

Rat

On T

rat

o Momentary press of the

/HOL

key (each key press

ncreases the rat

o by 0.1, the value

cycles from 0.4 - 1.0)

ond/T

Rat

On T

rat

o Momentary press of the

L/R

LL key

hange

Temperature Un

Off n/a (off

mode)

ress and hold the

L/R

LL key

then momentar

ly press the On/Off

key. Release the

L/R

LL key

after the

ghts

Overr

uto

ower Off

ny measure

mode

Momentar

ly press the

L/R

key then s

multaneously press and

hold the ON/O

/HOL

key

for approx

mately 2 seconds, unt

“o

”

s d

splayed

efault Reset O

n/a

multaneously press ON/O

L/R

LL and MO

/HOL

momentar

ly. “d

Lt” w

ll be d

splayed.

500-en-G

_v2.7 12/16

cific

splay 2000 count L

argraph

pH Range 0.00 to 14.00

ccuracy

0.01 pH typ

cal

Range 0°

to 90

(32°

to 194

)

pH Reference Junct

ermanent gel, non-ref

llable

onduct

ty ranges 0 to 199.9µ

/cm

200 to 1999µ

/cm

2.00 to 19.99m

/cm

ranges 0 to 99.9ppm or mg/L

(

able rat

o) 100 to 999ppm or mg/L

1.00 to 9.99ppt or g/L

ty range 0 to 99.9ppm

100 to 999ppm

1.00 to 9.99ppt

Rat

o 0.4 to 0.6 auto

ty Rat

o 0.5

xed

onduct

2.0% per

onduct

Range 0.0°

to 60.0

(32.0°

to 140

)

Temperature Range -5.0°

to 90.0

(23.0°

to 194

)

Temperature Resolut

on 0.1 up to 99.9, 1 >100

Temperature

ccuracy

1°

; 1.8°

(from -5 to 50°

; 23 to 122°

)

3°

; 5.4°

(from 50 to 90°

; 122 to 194°

)

ccuracy

onduct

ty:

2% full scale

ty:

2% full scale

Measurement memory 25 tagged (numbered) read

ngs

Low battery

cat

‘

’

appears on the L

ower

our (4)

R2032 L

um Ion

atter

uto power off

fter 10 m

nutes (overr

de ava

lable)

Operat

ng cond

ons -5°

to 50

(23°

to 122

)

mens

ons 40 x 200 x 40 mm (1.6 x 7.9 x 1.6”)

ght 93 g (3.3 oz)

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