Mastech MS2301 User Manual
MS2301
USERS MANUAL
EARTH RESISTANCE CLAMP
CONTENTS CONTENTS
WARNING
MAINTENANCE
INTRODUCTION
FRATURES
SUMMARY OF FUNCTION
LAYOUT
LCD DISPLAY
OPERATION
ON/OFF OPERATION
EARTH RESISTANCE
MEASUREMENT
CURRENT MEASUREMENT
HOLD BUTTON
ALARM OPERATION
MEMORY FUNCTION
SPECIAL FUNCTION
SPECIFICATION
FEATURES
ACCESSORY
CHANGING THE BATTERIES
CHARGE THE BATTERIES
APPLICATION FIELD
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1
03 04
Summary of function
FUNCTION
BUTTON
A MEASUREMENT/
A LARM VALUE INCREASE/
RECORD NUMBER SELECT
ON/OFF/EXIT SET MODE
Ω MEASUREMENT/
A LARM VALUE MINISH /
RECORD NUMBER SELECT
HOLD DISPLAY
SELECTA LARM MODE
SELECT /SET MEMORY MODE
SWITCH BUZZER ON/OFF
SET A LARM VALUE
AUTO POWER OFF FUNCTION SET
READ SAVED MEASUREMENT VALUE
RESET MEMORY T O ZERO HOLD+MEM
HOLD
A L
MEM
▲A
▼
Ω
+MEM
+HOLD
Ω
A L
LCD Display
(Not e: when s witch o n, the clamp perfo rms a rap id
auto -test o f the whole display. All t he symb ol on the
LCD ar e displ ay for th is short time.)
6
7
8
9
L
ayout
1
. C
lam
p j
a
w
2. Tri
gg
e
r
3
. ME M B
utto
n
4. B
utto
n
(
ON/O
FF BUTTON
)
5
. LCD Di
s
p
l
a
y
6
. AL B
utto
n
7. ▼Ω B
utto
n
8
. ▲A B
utto
n
9
. HOLD B
utto
n
05 06
1． Buz zer ON sy mbol
2． HOL D symbo l : hold the last measureme nt
3． Int erfer ence Symbol : showing tha t the cur rent in
the lo op is dis turbed such that the resi stanc e
meas ureme nt value is not be guarante ed.
4． Cla mp symb ol : show ing that the clamp i s close d
inco rrect ly, can not measure.
5． Wait symb ol : show ing that the instr ument i s
auto -cali brating
6． Cur rent me asure ment unit
7． Res istan ce meas urement unit
8． Dec imal po ints
9． Per cent si gn of the batteries actua l servi ce life
10. Ala rm thre shold v alue of resistan ce unit
11. Digita l displ ay of the battery ac tual se rvice l ife or
Alarm t hresh old value
12. H igh Alar m symbo l
13. Lo w Alarm sy mbol
14. Ala rm mode s ymbol
15. L ow volt age ind ication symbol
16. Au to Powe r Off symbol
17. R ecord n umber s ymbol
18. R ead mem ory mod e symbol
19. s ave in me mory mode symbol
20. 4 d igit LC D digit al display
Operation
1. ON/OFF Operation
butt on swit ches ON/OFF. Press button s o the
clam pswitc h on, Pre ss the button for 2 se conds ,
the in strum ent swi tch off.
As soo n as it swi tch on, the earth resista nce cla mp
begi ns to aut o-cal ibrate to obtain b atter r esolution.
When i t is cali brati ng, the instrume nt will c ount from
CAL 9 to CAL 0. The u ser mus t wait for the clamp
comp leted c alibr ation. Do not open t he clam p or hook
the cl amp jaw a round t he conductor or th e objec t be
meas ured in c ase of th e calibration. Af ter the c alibration
comp leted , the ins trument return s the mea surement
mode w hen las t switc h off. If the ins trume nt is in
resi stanc e measu rement mode when s witch o ff , the
LCD wi ll disp lay the p rimary resista nce mea sured value.
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