Cryomech LNP-40, Инструкция по установке, эксплуатации и текущему обслуживанию

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Specifications
5-4
5.2.5 Air compressor electrical specifications
Parameter
208/230 Volt
60 Hz Model 460 Volt
60 Hz Model
220 Volt
50 Hz Model
380 Volt
50 Hz Model
Nominal
voltage
208/230 VAC 460 VAC 220 VAC 380VAC
Operating
voltage
range
188 - 253 VAC 414 - 506 VAC 198 - 242 VAC 342 - 418 VAC
Frequency 60 Hz 60 Hz 50 Hz 50 Hz
Phase 3 3 3 3
Horse
Power
3 3 3 3
Current 8.7 / 8 A 4 A 9.2 A 5.4 A
Mains
supply
voltage
fluctuations
Up to ± 10% of
the nominal
voltage
Up to ± 10% of
the nominal
voltage
Up to ± 10% of
the nominal
voltage
Up to ± 10% of
the nominal
voltage
5.2.6 Operating parameters
Parameter Value
Ambient temperature range* 45 to 100
°
F 7 to 38
°
C
System helium pressure
200 ± 5 PSIG @ 60 Hz
(13.8 ± .34 bar @ 60 Hz) 13.8 ± .34 bar @ 50 Hz
(200 ± 5 PSIG @ 50 Hz)
Acceptable location
Indoors only Indoors only
Maximum altitude for use 6560 ft 2000 m
Environment
Pollution Degree 2 Pollution Degree 2
Installation
Category II Category II
Maximum relative humidity
80% for T< 88°F Decreasing
linearly to 50% at 104°F. 80% for T< 31°C Decreasing
linearly to 50% at 40°C.
Maximum sound level
(air cooled)
74 dBA at 1 meter 74 dBA at 1 meter
Maximum sound level
(water cooled)
70 dBA at 1 meter 70 dBA at 1 meter
*The helium compressor package is designed to operate in an ambient temperature range
from 45
°
F to 100
°
F (7 to 38
°
C). If the temperature is below 45
°
F, the increased viscosity of
the oil could prevent start-up and/or cause poor lubrication. Operation above 100
°
F will cause
overheating and subsequent problems. If a unit must be subjected to either extreme,
Cryomech must be consulted.
5.2.7 Safety Devices
A number of safety switches and valves are located inside the compressor package and
on the cold head. They operate automatically to protect the compressor package and
cold head from developing extreme conditions that can damage them. Most of them are
totally transparent to the user. The ones you need to know about are described below.
30Oct08