Deltabar S
28
Hauser
Overvoltage protection
(optional)
• Overvoltage protection:
– Nominal functioning DC voltage: 600 V
– Nominal discharge current: 10 kA
• Surge current check î = 20 kA as per DIN EN 60079-14: 8/20
s satisfied
• Arrester AC current check I = 10 A satisfied
68 ff, feature 100 "Additional options 1" and feature 110 "Additional options 2", version "M Overvoltage
protection".
Note!
Devices with integrated overvoltage protection must be earthed.
Operating conditions (Process)
Process temperature limits
• PMD70: –20...+85°C (–4...+185°F)
• FMD76: –20...+85 °C (–4...+185°F)
• PMD75 with impulse piping longer than 100 mm: –40...+120°C (–40...+248°F),
with side flanges C22.8 and impulse piping longer than 100 mm: –10...+120°C (14...+248°F)
• FMD77 and FMD78, depending on the diaphragm seal and filling oil: up to + 400°C (+752°F)
Note!
• For oxygen applications, observe page 26 "Oxygen applications" section.
• PMD70, FMD76, PMD75 and FMD78: Observe the Process temperature range of the seal.
See also the following section "Process temperature range, seals".
• FMD77 and FMD78: Observe the temperature application limits of the diaphragm seal oil.
59, sections "Diaphragm seal filling oils".
• FMD77 and FMD78: Do not use diaphragm seals with 0.09 mm PTFE foil on AISI 316L (1.4435/1.4405)
for vacuum applications, upper temperature limit +204°C (+400°F).
Process temperature range,
seals
PMD70 (with ceramic process isolating diaphragms)
FMD76 (with ceramic process isolating diaphragms)
Versions for feature 80 in the order code Seal
Process temperature range
A
FKM Viton
–20...+85°C (–4...+185°F)
B
EPDM
–20...+85°C (–4...+185°F)
D
Kalrez, Compound 4079
+5...+85°C (+41...+185°F)
E
Chemraz, Compound 505
–20...+85°C (–4...+185°F)
1
FKM Viton, cleaned from oil and greace –10...+85°C (+14...+185°F)
2
FKM Viton, cleaned for oxygen service
–10...+60°C (+14...+140°F)
Versions for feature 70 in the order code Seal
Temperature
operating
range
B, D, F, G, U
FKM Viton
–20...+85°C (–4...+185°F)
K, L
EPDM
FDA 21 CFR 177.2600
–20...+85°C (–4...+185°F)
M, N
Kalrez, Compound 4079
+5...+85°C (+41...+185°F)
P, Q
Chemraz, Compound 505
–20...+85°C (–4...+185°F)
S
FKM Viton, cleaned from oil and greace –10...+85°C (+14...+185°F)
T
FKM Viton, cleaned for oxygen service
–10...+60°C (+14...+140°F)