Nahita 903 Serie Manual De Instrucciones página 19

ATTENTION! WE DO NOT ADMIT EQUIPMENTS TO REPAIR IF THEY ARE
NOT WELL DISINFECTED.
9. TROUBLE SHOOTING
PROBLEM CAUSE
Digits are irregular Wrong connection of the
electrode
Irregularity in the measu- Dirty or damaged electro-
rements de
Display shows "Err" Anomaly during check
when on
Display shows "Err" in Input potential exceeds
mV value and right tempe- measurement range
rature value
Button "pH/mV" does When measurement pH
not let select measurement range exceed ±20.00 dis-
pH mode play indicates "Err" and
continues to mV measure-
ment mode
Version 3 August 09
SOLUTION
Check the connections
Clean electrode
Replace electrode
Turn off the equipment,
wait for a while and turn on
again. If the problem per-
sists, please, contact the
Technical Service
Insert protector device in
the connection of the elec-
trode to re-establish the
system
Reduce input signal
Insert protector device to
the electrode connection to
re-establish the system
Instruction manual 50903000
ENGLISH
INDEX OF LANGUAGES
Spanish
English
French
INDEX OF CONTENTS
1.FEATURES OF THE EQUIPMENT
2.THEORETICAL FUNDAMENTALS
3.DESCRIPTION
4.TECHNICAL SPECIFICATIONS
5.INSTALLATION / SETTING UP
6.CALIBRATION
7.Ph-METER FUNCTIONS
8.MAINTENANCE AND CLEANING
9.TROUBLE SHOOTING
10.ACCESSORIES
APPENDIX I: Diaphragm types of referent electrode / Features
CE CERTIFICATE
1. FEATURES OF THE EQUIPMENT
Digital pH-meter is indicated to make measurings of pH at compensating temperature
and electrochemical potential (mV) of watery solutions, so we can get diverse information,
for example:
Direct measurement of concentrations of anions and cations.
Direct measurement of dissolved gases as NH 3 , O 2 , CO 2
Acidity and alkalinity in water
Calcium in water
pH in wter, slurries, suspensions
Proteins in water
Its features extend to many fields of work, we emphasized the following:
Page 29 Page 18 Instruction manual 50903000
ENGLISH
2-16
17-30
31-45
18
19
20
21
21
23
26
27
29
30
30
46
Version 3 August-09