Metek 933 - Zero Gas; Ambient Limits; Temperature; Humidity

Specications | 2-5
Zero Gas
Instrument zero purity Carbon Dioxide, UHP Nitrogen, or UHP Methane.
Recommended Auto-Zero interval is once per 24 hours. More frequent
Auto-Zeroing can be used to reduce temperature drift in installations with
widely varying ambient temperatures.
Ambient Limits
Temperature
From 0 °C to 50 °C (32 °F to 122 °F).
The surrounding ambient temperature must be at least 5 °C (9 °F) degrees
above the highest expected dewpoint temperature. It is also extremely im-
portant to maintain a relatively stable ambient temperature in the vicinity
of the analyzer, with no rapid temperature fluctuations.
Humidity
0–95 % RH
If ambient conditions typically exceed 70 % RH, the environmental purge
option is required.
Environmental purge set at 10 psi will consume a 300 ft
3
tank in ap-
proximately 1 year.
Maximum Altitude
2000 m
Sample Pressure Requirement
Maximum Cell Pressure 1380 kPag (200 psig)
With Filterblock Assembly:
830–13 790 KPAG (120–2000 PSIG)
Without Filterblock Assembly:
830–20 700 KPAG (120–3000 PSIG)
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NOTE