MULTIFUNCTION LABORATORY METER CX-502


The most important features:




Detailed description:


CX-502 measures pH, redox potential (mV), conductivity, salinity, TDS, dissolved oxygen in % of saturation or mg/l, atmospheric pressure and temperature.
The meter has a built in thermal printer (60mm).

Characteristic features:



In the pH measuring function:


In the mV and redox potential measurement function:


In the conductivity measuring mode:


In the dissolved oxygen measurement mode:


Other features:


The additional equipment schould be chosen by the user depending on the predicted parameters which will be measured and type of measured solutions.
In standars set the CT2B-121 temperature sensor is added.

In comparison with the CX-505 the meter has smaller display without backlight. There is no possibility to ”hold” the reading on the display and no information about the reading stabilisation. Does not create calibration reports. No possibility of viewing the electrode's offset and slope. The meter has no function of automatic calculations of the α coefficient for natural and ultra pure water.



TECHNICAL DATA
Function pH mV Conductivity /
Salinity
O2 (mg/l) O2 (%) Temperature
Range -2.000 ÷ 16.000 pH ±1999.9 mV 0 ÷ 1999.9 mS/cm
(autorange) /
0 ÷ 239 g/l KCl
0 ÷ 296 g/l NaCl
0 ÷ 60 mg/l 0 ÷ 600 %,
in the air:
0 ÷ 100 %
-50.00 ÷ 200.00 °C
Accuracy
(±1 digit)
±0.002 pH* ±0.1 mV* up to to 19.99 mS/cm ±0.1 %*
above 20.00 mS/cm ±0.25 %* /
salinity 2 %*
±0.01 mg/l* ±0.1 %** ±0.1 °C***
Temp. compensation -5 ÷ 110 °C - -5 ÷ 70 °C 0 ÷ 40 °C 0 ÷ 40 °C -
Input impedance >1012Ω >1012Ω - - - -
α coefficient - - 0.00 ÷ 10.00 %/°C - - -
K constant - - 0.010 ÷ 19.999 cm-1 - - -
Air pressure range 800 ÷ 1100 hPa, accuracy ±2 HPa
Power supply 6,5 V / 3,2 A power adapter
Weight 640 g
Dimensions (mm) L = 200, W = 180 H = 20/50
Printer Thermal, 60 mm width
* The accuracy of the meter only.
** The accuracy of the meter only. With COG-1 or COG-2 oxygen sensor the accuracy at calibration temperature: ±1%. By the difference ±5 °C accuracy: ±3%, by the difference ±10 °C accuracy: ±5%.
*** The accuracy of the meter only. The total error includes the meters and probe’s accuracy. In the range 0 ÷ 100 °C the acceptable error of the probe with Pt-1000B resistor: ±0.8 °C, with Pt-1000A resistor: ±0.35 °C.