CORNING 440 pH Meter - Specifications

20
109118-1 Rev. A, 10/96
3.5 Specifications
Operating Ranges
pH –1.99 to 16.00
mV ±1999
Temp. –5 to 105°C
Resolution
pH 0.01
mV 1
Temp. 0.1
Relative Accuracy*
pH ±0.01
mV ±1
Temp. 0 - 50°C ±1%
50 - 100°C ±2%
* ±1 least significant digit
pH Calibration
2 point, auto buffer recognition
Isopotential Point
7.00 pH
Temperature Compensation
–5 to 105°C, automatic with
ATC probe, or
electrode
incorprating ATC
Display
LCD display
Outputs
RS232
Recorder
Input Conditions
Impedance greater than 10
12
ohms
Operating Conditions
Operating temperature: 5 to
40°C
Operating humidity: max 80% at
35°C (non condensing)
Installation category 2
Pollution category degree 2
Size
10 x 8 x 4 inches
(255 x 200 x 95 mm)
Weight
2.4 lb (1.1 kg)
Power Requirements
The 440 is supplied with an
appropriate power supply unit,
e.g.
USA/Japan 100 - 120V,
50/60Hz, 9VA
Europe 230V 50Hz, 9.7VA
Output from PSU 9V DC
NOTE The 440 should only be
used with the power
supply unit provided.
440 Power Rating 4.5VA
3