2 TECHNICAL DATA
Notes: Unless otherwise specified, data in the following sections applies to all models of iH system.
2.1 General
Dimensions See Figures 2-1 to 2-4
Inlet and outlet See Table 2-1
Warm-up time to nominal pumping performance 15 min
Minimum warm-up time to process gas pumping 4 hours
Vacuum system maximum leak-rate 1 x 10
-5
mbar.ls
-1
(1 x 10
-3
Pa.ls
-1
)
Exhaust system maximum leak-rate 1 x 10
-5
mbar.ls
-1
(1 x 10
-3
Pa.ls
-1
)
Ambient operating temperature range 5 to 40
o
C
Maximum ambient operating humidity 90% RH
Noise level measured at 1 m from the pump
(with enclosure panels fitted) See Table 2-1
Mass See Table 2-1
Centre of mass/mass distribution See Figure 2-5
2.2 Performance
Pumping speed range See Figures 2-6 to 2-10
Power curves See Figures 2-6 to 2-10
Peak pumping speed See Table 2-1
Ultimate vacuum See Table 2-1
Maximum pressure differential between
HCMB inlet and outlet* See Table 2-1
Maximum inlet pressure * See Table 2-1
Maximum operating time at
maximum inlet pressure * See Table 2-1
2.3 Temperature control system
HCDP pump shut-down thermistor
Type Negative Temperature
Coefficient thermistor
“Opening” temperature 60 +/-3 °C
“Closing” temperature 50+/-4 °C
Thermocouples K type class 1
HCDP and HCMB motor-protection
thermistors
Type Positive temperature coefficient
Reference temperature 150
o
C
Compliant with IEC 34-11 (BS4999 part III)
Water flow-switch Closed when flow ³ 2 l.min
-1
(iH80)
Closed when flow ³ 4 l.min
-1
(iH600/iH1000)
iH Dry Pumping Systems 2-1
* iH600/iH1000 systems only