Figure 5 Typical base view
1. Body purge port 1/8” BSP 2. Envelope vent port 1/8” BSP
3. Alternave backing port posion 4. 4 x holes (M5 x 12 deep) Base mounng
holes and fan mounngs
5. 79 PCD mounng port 6. Electric drive
7. 24 V supply cable 8. Backing port NW16 (Oponal NW25)
1. Body purge port 1/8” BSP 2. Envelope vent port 1/8” BSP
3. Alternave backing port posion 4. 4 x holes (M5 x 12 deep) Base mounng
holes and fan mounngs
5. 79 PCD mounng port 6. Electric drive
7. 24 V supply cable 8. Backing port NW16 (Oponal NW25)
3.2 Operang and storage condions
Table 2
Operang and storage condions
Range Data
Ambient operang temperature range 5 °C to 40 °C
Ambient operang humidity range 10% to 90% RH (non‑condensing)
Maximum operang altude 2000 m
Ambient storage temperature range -30 °C to 70 °C
3.3 Vent gas specicaon and vent control data
The pump can be vented to atmosphere, but the high relave humidity of the air can
increase the subsequent pump‑down me. To decrease the pump‑down mes, vent
with dry and clean gases. Refer to Vent opons, vent valve connecon and control on
page 68 for the vent opons and the vent valve connecon. Refer to Controlled venng
opons on page 60 for conguring the venng opons.
Table 3
Vent gas specicaon and vent control
Vent gas
specicaon and control
Reference data
Vent gas Dry air, nitrogen, argon or other inert
gases
Page 20
B8G000880_D - Technical data