wtw pH 323 Bedienungsanleitungen Seite 48

digital interface
RS 232 (pH 325 only)
Environmental conditions
ambient temperature
relative humidity
EMC
Interference transmission
Disturbance
Power supply
Operation time
Energy reduction by automatic switch-off after approx. 1 h
Data storage in case of battery exchange
pH calibration values, measuring values and operation mode are stored
Housing
dimension / weight
Instrument safety
safety standard
degree of protection
48
Technical data
4-pin socket with pin contacts for
RS 232-cable AK 325/B
printer cable AK 325/S
serial interface
data output, no separate excitation
baud rate:
data bits:
stop bit:
parity:
hand shake:
max. cable length: 15 m
output format:
operation: - 10°C ... + 55°C
storage: - 25°C ... + 65 °C
yearly mean: < 80 %
30 days/year: < 100 %
other days: < 90 %
Technical fundamental standard EN 50081-1
FCC class A
Technical fundamental standard EN 50082-2
Namur recommendation (standard requirements)
4 x 1.5 V non rechargeable batteries, Typ AA
or
4 x 1.2 V NiCd, Typ AA rechargeable batteries
Battery charger:
230 VAC: Friwo FW1199/11.7864,
120 VAC: Friwo FW1199/11.7880,
5000 operating hours with alkali/ manganese
batteries
or
1500 operating hours with NiCd rechargeable
batteries
172 x 80 x 37 mm / approx. 0.3 kg
IEC 1010 / protection class 3
IEC 529 / IP 66
BA12204/05.95/Pap/pH323-325-SET-2
or
4800
8
1
none
RTS/CTS Handshake
ASCII-strings
Friwo Part. No. 1762613
Friwo Part. No. 1794043