1.2.3 Calibration
Zero Drift
Temperature dependant: 0.01 ppm per °C
24 hours: < 0.1 ppm
30 days: < 0.1 ppm
Span Drift
Temperature dependant: 0.05% per °C
24 hours: 0.5% of reading or 0.1 ppm whichever is greater
30 days: 0.5% of reading or 0.1 ppm whichever is greater
1.2.4 Power
Operating Voltage
100 - 240 VAC (± 10%)
50 - 60 Hz
Overvoltage Category II
Power Consumption
190 VA (max at start-up)
115 VA (nominal)
1.2.5 Operating Conditions
Ambient Temperature: 0 - 40 °C (32 - 104 °F)
Relative Humidity: 10 - 80% (non-condensing)
Pollution Degree: 2
Sample Pressure Dependence: 5% change in pressure produces less than a 1% change in reading
Maximum altitude