Xylem HandyLab 780 - Manual (Page 78)

78
Specifi cations
Conductivity Memosens M8 socket, 4 pins, for Memosens lab cable
Measuring range
Approx. 1s
Temperature compensation Linear 0 … 20 %/K, reference temperature
adjustable
nLF: 0 … 120 °C
NaCl
HCl (ultrapure water with traces)
NH
3
(ultrapure water with traces)
NaOH (ultrapure water with traces)
Display resolution 5) (autoranging)
Conductivity 0,001 μS/cm (c < 0,05 cm–1)
0,01 μS/cm (c = 0,05 … 0,2 cm–1)
0,1 μS/cm (c > 0,2 cm–1)
Resistivity 00,00 … 99,99 MΩ • cm
Salinity 0,0 … 45,0 g/kg (0 … 35 °C)
TDS 0 … 1999 mg/l (10 … 40 °C)
Concentration 0,00 ... 9,99 Gew %
Concentration determination
NaCl
0,00 ... 9,99 Gew % (0 ... 60 °C)
HCl 0,00 ... 9,99 Gew % (–20 ... 50 °C)
NaOH 0,00 ... 9,99 Gew % (0 ... 100 °C)
H
2
SO
4
0,00 ... 9,99 Gew % (–17 ... 110 °C)
HNO
3
0,00 ... 9,99 Gew % (–17 ... 50 °C)
Sensor standardization
Cell constant
Input of cell constant with simultaneous display of
conductivity value and temperature
Input of solution Input of conductivity of the calibration solution with
simultaneous display of cell constant and
temperature
Auto Automatic determination of the cell constant with
KCl solution or NaCl solution
Memosens pH input (ISFET) M8 socket, 4 pins, for Memosens lab cable
Display ranges
1)
-2,000 … +16,000 pH
-2000 … +2000 mV
-50 … +250 °C
Memosens Redox M8 socket, 4 pins, for Memosens lab cable
Display ranges
1) -2000 … +2000 mV
-50 … +250 °C
Sensor standardization *) ORP calibration (zero adjustment)
Permissible calibration range ΔmV (offset) -700 … +700 mV
pH/mV (analog) Anschluss pH socket, DIN 19 262
(13/4 mm)
pH range –2 … 16
Decimal places * ) 2 or 3
Input resistance 1 x 10 12 Ω (0 … 35 °C)
Input current 1 x 10 -12 A (at RT, doubles every 10 K)
Measuring cycle approx 1s
Measurement error 2,3,4) < 0.01 pH, TC < 0.001 pH/K
mV range -1300 … +1300
Measuring cycle approx 1s
Measurement error 2,3,4) < 0,1 % meas. val. + 0,3 mV, TC < 0,03 mV/K
Temperature 2 x 4 mm dia. for integrated or separate temperature detector
Measuring ranges
NTC 30 kΩ –20 … +120 °C
Pt 1000 –40 … +250 °C
Measuring cycle approx 1s
Measurement error 2,3,4) < 0.2 K (Tamb = 23 °C); TC < 25 ppm/K