Metrohm 827 pH lab Uživatelský manuál Strana 60

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9.1 Technical data
52 826/827 pH meter, Instructions for Use
9.1.3 Measuring input specifications
Measuring range Resolution Measuring accuracy
1)
pH 8.000 ... +22.000 0.001 pH ± 0.003 pH
Temperature
Pt1000
NTC (30 k
)
–150 °C ... +250 °C
–5 °C ... +250 °C
0.1 °C
0.1 °C
± 0.2 °C (–20 °C ... +150 °C)
± 0.6 °C (+10 °C ... +40 °C)
Potential –1200.0 mV ... +1200.0 mV 0.1 mV ± 0.2 mV
1)
±1 digit, without sensor error, under reference conditions
9.1.4 Measured values memory
Memory capacity 200 measured values, nonvolatile storage
9.1.5 Display
Display LC display b/w, 128 x 64 pixel, 65 mm x 35 mm
9.1.6 Interfaces
Infrared interface
IR Sending reports to an IrDA compatible printer (IrComm
and IrLPT, not IrOBEX), IBM character set, Code page
437
9.1.7 Power supply
826 pH mobile
4 batteries
Battery life
1.2 ... 1.5 V, type LR6, AA, AM3 or mignon
approx. 2 years (in operation for 1 hour/day with con-
nected NTC temperature sensor and IR interface
switched off, with alkaline batteries)
827 pH lab
Power supply unit
2 batteries
6 V, 0.1A
1.2 ... 1.5 V, type LR6, AA, AM3 or mignon for the clock
9.1.8 Housing specifications
826 pH mobile IP 66/67 (with connected splash-proof electrode plug I)
IP 66: Protection against hose water
IP 67: Protection against short-term immersion in water
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