pH/ION 3400i ION SELECTIVE ELECTRODE ANALYZER
Meter for measuring ISE/pH, temperature, and ORP
 
Ion Selective Electrode Analyzer FEATURES:
 
  • Simultaneous display of pH and temperature
  • Up to 1500 hours with “LoBat” warning
  • Built-in datalogger
  • IP67 waterproof rated
 
Ion Selective Electrode Analyzer Product Product Description

The pH/mV and ion selective electrode analyzer pH/ION 3400i offers the highest degree of flexibility possible.  For pH measurements the ion selective electrode analyzer can be calibrated manually or automatically and offers simultaneous display of pH and temperature.  For measurements with ion-selective electrodes the pH/lON 3400i ion selective electrode analyzer offers concentration display in mg/l.  The ion selective electrode analyzer also displays directly in mV to ±999.9 mV in 0.1 mV steps; and to ±1999 mV in 1 mV steps.

Of course, even in these higher ranges the ion selective electrode analyzer calculates the concentration from a mV resolution of 0.1 mV.  Calibration of the ion selective electrode analyzer is carried out with up to three standards (selected from 16 standards in the range of 0.01 to 1000 mg/l).

Operating on either line power or rechargeable battery for up to 1500 hours with “LoBat” warning means that the ion selective electrode analyzer can be used in the laboratory or in the field.  Lightweight and compact, the rugged ion selective electrode analyzers are IP 66 (hose proof) and IP 67 (submersible).  The ion selective electrode analyzer has a built-in datalogger for up to 500 measurements together with GLP calibration protocol offers a comprehensive documentation of the results.  The ion selective electrode analyzer supports analog or digital data transfer (RS 232), automatic recognition of stable measurements (AutoRead), electrode evaluation and calibration interval monitoring functions to ensure reproducible and reliable measurements.

What is a Ion Selective Electrode Analyzer for?
Ion-selective measurement is a method for determining the concentration of dissolved ions.  Potassium ions, sodium ions, fluoride or chloride are examples of such cations and anions which are directly measured in solutions.  Indirect methods such as titration allow the determination of aluminum, nickel ions, or sulfate.  Measurement with ISE’s, like the measurement of pH, is a potentiometric method.

ISE’s are in two configurations:
1. separate ion-selective electrode and reference electrode
2. combined ion-selective electrode with built-in reference electrode

The ion-selective membrane of the electrode consists of a sparingly soluble salt of the ion to be measured (solid state electrodes), a PVC-membrane, modified by an ion exchanger or ion carrier (matrix electrodes), glass (glass electrode) or a gas-permeable plastic (gas-sensitive electrodes).  The activity of the ions to be measured determines the electrode current.  With increasing activity of the anions the voltage turns more negative, with increasing activity of cations, more positive.  An ion selective electrode analyzer uses the electrode signal to calculate the concentration of the sample.  The wide range of possible applications includes, for example, the measurement of fluoride concentration according to DIN 38 405.  Chloride content determination in concrete samples or nitrate concentration determination in fruit juices are further examples of the ways in which ion-selective measurement technology can be applied.  An introduction to ion-selective measurement technology as well as application reports are available on our CD-ROM entitled “Principles of measurement technology”.

Ion Selective Electrode Analyzer Product Specifications

Measuring Ranges:
     pH: -2.000 to +19.999, -2.00 to +19.99
     mV: -999.9 to +999.9, -1999 to +1999
     Temp: -23 to 221 °F (-5.0 to 105.0 °C)
     ISE: 0.000 to 9.999 mg/l, 0.00 to 99.9 mg/l, 0.0 to 999.9 mg/l, or 0 to 1999 mg/l
Measuring Resolution:
     pH: 0.001, 0.01
     mV: 0.1, 1
     Temp: 0.2°F (0.1°C)
     ISE: 0.001 mg/l, 0.01 mg/l, 0.1 mg/l, 1 mg/l
Precision:
     pH (+ pH units from the calibration point): +0.003 from 59 to 95 °F (15 to 35 °C), +0.01
     mV: +0.2 from 59 to 95 °F (15 to 35 °C)
     Temp: +0.1 (NTC 30); +0.5 from 32 to 59 °F (0 to 15 °C), +0.1 from 59 to 95 °F (15 to 35 °C), +0.2 from 95 to 131 °F (35 to 55 °C) (PT 1000)
pH correction function: Manual from -4 to 266 °F (-20 to 130 °C)
Usable ISE electrodes: Combination and single electrodes with connector according to DIN 19262
ISE calibration procedure: Two point calibration or three point calibration with standards suiting the sample
ISE slope ranges: ± 25 to 35 mV and ± 50 to 70 mV
Serial Interface:
     Baud Rate: Adjustable: 1200, 2400, 4800, 9600 Baud
     Type: RS232, data output
     Data Bits: 8
     Stop Bits: 2
     Parity: None
     Handshake: RTS/CTS + Xon/Xoff
     Cable Length: Max. 15m
Ambient Conditions:
     Storage: -13 to +149 °F (-25 to +65 °C)
     Operation: 14 to 131 °F (-10 to +55 °C)
     Climatic Class: 2
Power:
     Batteries: 4 x 1.5 V alkali-manganese batteries, type AA
     Operational Life: approx. 3000 operating hours
     Mains:
          The following applies to all plug-in power supplies:
          Connection max. overvoltage category II
          Input: 100 to 240 V ~ / 50 to 60 Hz / 400 mA
          Output: 9 V = / 1.5 A
Weight: 0.7 lbs (0.3 kg)
Size: 6.8x3.1x1.5 in (172x80x37 mm)
IP Rating: IP-66 & 67
Certifications: cETLus, CE
Electrical Safety: Protective class III

Ion Selective Electrode Analyzer Product Options

pH/Ion 3400i Ion Selective Electrode Analyzer
Electrodes not included.
   
SenTix 21 pH Electrode
Replacement plastic body electrode, no temp, waterproof connector
   
SenTix ORP Electrode
Glass body electrode, platinum sensor, waterproof connector
   
Ion Selective Electrode Analyzers (Composite Type)
Cl 800 DIN Chloride
Combined Chloride selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 2 to 35,000 mg/L, requires ELY/BR/503 reference electrolyte (included), ionic strength adapter ISA/FK standard solution ES/Cl.
   
F 800 DIN Fluoride
Combined Fluoride selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 0.02 mg/L to saturation, requires ELY/BR/503 reference electrolyte (included), ionic strength adapter TISAB, standard solution ES/F.
   
NO 800 DIN Nitrate
Combined Nitrate selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 0.4 to 62,000 mg/L, requires ELY/BR/503/N reference electrolyte (included), ionic strength adapter TISAB/NO3, standard solution ES/NO3.
   
K 800 DIN Potassium
Combined Potassium ion selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 0.04 to 39,000 mg/L, requires ELY/BR/503/K reference electrolyte (included), ionic strength adapter ISA/K, standard solution ES/K.
   
CA 800 DIN Calcium
Combined Calcium ion selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 0.02 to 40,000 mg/L, requires ELY/BR/503 reference electrolyte (included), ionic strength adapter ISA/Ca standard solution ES/Ca.
   
I 800 DIN Iodide
Combined Iodide selective electrode, with 3.3 ft (1 m) cable, DIN plug, range 0.006 to 127,000 mg/L, requires ELY/BR/503 reference electrolyte, ionic strength adapter ISA/FK, standard solution ES/I.
   
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