Endress+Hauser Cerabar M PMC41, Техническая информация

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Cerabar M
30 Hauser
With applications involving saturated steam, a Cerabar M with a metal diaphragm seal must be used.
PMP41 (with metal measuring diaphragm)
Pressure specifications • The maximum pressure for the measuring device depends on the element with the lowest pressure rating,
see the following sections:
–
→
Page 12 ff, "Measuring range"
–
→
"Mechanical construction" section
The MWP (maximum working pressure) is specified on the nameplate. This value refers to a reference
temperature of 20°C (68°F) or 100°F for ANSI flanges and may be applied to the device for an unlimited
time period. Observe temperature dependency.
• The pressure values permitted at higher temperatures can be found in the following standards:
– EN 1092-1: 2001 Tab. 18
1
– ASME B 16.5a – 1998 Tab. 2-2.2 F316
– ASME B 16.5a – 1998 Tab. 2.3.8 N10276
– JIS B 2220.
• The test pressure corresponds to the overpressure limit (OPL) of the device = MWP x 1.5
2
.
• The Pressure Equipment Directive (EC Directive 97/23/EC) uses the abbreviation "PS". The abbreviation
"PS" corresponds to the MWP (maximum working pressure) of the measuring device.
• In the case of sensor range and process connection combinations where the OPL of the process connection
is smaller than the nominal value of the sensor, the device is set at the factory to the OPL value of the process
connection at the very maximum. If you want to use the entire sensor range, select a process connection
with a higher OPL value (1.5 x PN; PN = MWP).
• In oxygen applications, the values for "p
max
and T
max
for oxygen applications" as per Page 27, "Oxygen
applications" may not be exceeded.
4
3
)
EPDM –20 to +125°C (–4 to +257°F)
7 Kalrez, Compound 4079 +5 to +125 °C/150 °C
1
)
C Chemraz, Compound 505 –10 to +125 °C/150 °C
1
)
2
2
)
3
)
HNBR (FDA 21CFR177.2600); 3A Class II; KTW;
AFNOR; BAM –20 to +125°C (–4 to +257°F)
2
3
)
NBR –20 to +80°C (–4 to +176°F)
M Kalrez, cleaned for PWIS-free applications +5 to +125°C (+41 to 257°F)
A FKM Viton, oil and grease removed –10 to +125°C (+14 to 257°F)
L FKM Viton, cleaned for PWIS-free applications –10 to +125°C (+14 to 257°F)
9 Silicone to be ordered as special version –40 to +125°C (–40 to +212°F)
1) 150 °C for max. 1 hour
2) These seals are used for devices with 3A-approved process connections.
→
See also Page 70 "Ordering information",
feature 70 "Process connections".
3) For devices with NBR or HNBR seals, the values for "Thermal change" (
→
see Page 23) must be multiplied by a
factor of 3.
Version in the order code Seal Temperature operating range
1 FKM Viton –20 to +100°C (–4 to +212°F)
4 FKM Viton, cleaned from oil + grease –20 to +100°C (–4 to +212°F)
H FKM Viton –20 to +100°C (–4 to +212°F)
P PTFE + Alloy C –40 to +100°C (–40 to +212°F)
F NBR –20 to +80°C (–4 to +176°F)
Version for feature 80
in the order code Seal Temperature operating range
1) With regard to their stability-temperature property, the materials 1.4435 and 1.4404 are grouped together under 13EO
in EN 1092-1 Tab. 18.
The chemical composition of the two materials can be identical.
2) The equation does not apply for PMP41, PMP45 and PMP48 with a 100 bar measuring cell.