Nahita 910/5, Руководство пользователя

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Cuando la medida en pantalla sea estable, presione ENTER/PRINT (1.4) . En pantalla se
visualizará "CA-M".
Con los botones /C/T/S (1.5) (incremento) o /SAVE (1.6) (disminución) introduzca
el valor exacto de conductividad de acuerdo con la siguiente tabla:
ENGLISH CASTELLANO
Page 22 Instruction manual 50910050 Version 1 June-07 Revisión 1, Junio-07 Manual de instrucciones 50910050 Pág. 11
S
S
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Valor exacto de conductividad en relación con la concentración aproximada de KCl de la solución
estándar
Presione ENTER/PRINT (1.4) , para guardar el dato; al cabo de unos segundos se visua-
lizará en pantalla "CAL".
Pulse MODE/MEAS (1.3) , de esta manera vuelve al estado de medida
2. Calibración del factor de conversión TDS
Seleccione la solución estándar de acuerdo a las características de la solución que va ser
analizada y del rango de medida.
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Relación entre conductividad y TDS de la solución estándar
*442: 40% Na
2
SO
4
, 40% NaHCO
3
, 20% NaCl.
Todos los valores mostrados en la tabla son a 25 ºC
Temperatura de la solución estándar
Concentración aproximada (mol/L) 15.0 ºC 18.0 ºC 20.0 ºC 25.0 ºC 30.0 ºC
1 12120 978000 101700 111310 131100
0.1 10455 11163 11644 12852 15353
0.01 1141.4 1220.0 1273.7 1408.3 1687.6
0.001 118.5 126.7 132.2 146.6 176.5
Valor estándar TDS
Conductividad ( S/cm) KCl (mg/L) NaCl (mg/L) 442* (mg/L)
23 11.6 10.7 14.74
84 40.38 38.04 50.5
447 225.6 215.5 300
1413 744.7 702.1 1000
1500 757.1 737.1 1050
2070 1045 1041 1500
2764 1382 1414.8 2062.7
8974 5101 4487 7608
12880 7447 7230 11367
15000 8759 8532 13455
80000 52168 48384 79688
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μ
PLEASE READ THOROUGHLY THE INSTRUCTIONS BEFORE CONNECTING
AND OPERATING WITH THIS EQUIPMENT WITH THE AIM OF ACHIEVING
THE HIGHEST FEATURES AND THE MAXIMUM DURABILITY OF THE INS-
TRUMENT.
1. Placing the batteries
Nahita conductivity meter 910/5 operates with 4 alkaline batteries type AA:
Open the battery compartment; for this purpose, unscrew the four screws placed at the
back side of the instrument.
Insert the batteries according to their polarity.
Put the lid of the compartment and screw the four screws.
NOTE: Remove the batteries if you are not using the instrument for a long period of
time.
2. Connection of the conductivity cell
Connect the conductivity cell (1.7) (not included) into the corresponding connector (2.1)
of the equipment.
Selection of the conductivity cell
To adapt to any application, Nahita conductivity meter 910/5 can be used with conduc-
tivity cells of different constant value (see Accessories) allowing to adjust the constant
value of the cell to be used at any moment.
Different charts are shown below to indicate the adequate constant of the conductivity
cell depending on the working range
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they can make the claims in the correct time limit.
Please keep the original wrapping; you will always need it for returns enclosed with all
the accessories supplied.
Please check that all the accessories are enclosed with the equipment:
- Temperature probe
- RS232 cable
- Aluminium case
- User's manual
- Warranty certificate
We will only accept any equipment return within 15 days after delivery and provided
it comes in its original wrapping.
Installation
Before using the conductivity meter, it is convenient for you to familiarize with its com-
ponents and basic essentials, as well as with its control functions.
A) Selection of the conductivity cell according to the conductivity working range: