Xylem CG 842 - Manual (Page 13)

Overview
56
Electrodes Socket according to DIN 19 262
or BNC
4 mm socket for reference elec-
trode
Temperature probe 4 mm socket for
temperature probe
Plug-in power supply
unit 2-pole special Friwo
Input impedance
≥
10
12 Ω
Offset current
≤
10
-12
A
AutoCal TEC With Technical buffers
(given in pH):
2.00; 4.00; 7.00; 10.00 at 25 °C;
buffers are temperature com-
pensated in the range 0 ... 90 °C
AutoCal DIN With standard buffers according
to DIN 19 266/NIST (given in
pH):
1.68; 4.01; 6.87; 9.18 at 25 °C;
buffers are temperature com-
pensated in the range 0 ... 90 °C
ConCal With any buffers;
single-point and two-point cali-
bration,
manual acceptance of measured
values and temperature input
Connections
Input amplifier
Calibration modes