Specifications - WIKA DMSU21SA Mode D'emploi

15. Specifications

15. Specifications
Diaphragm seal system
EN
Version
1)
Material
Wetted
Surface roughness
Wetted
Non-wetted
Case head
System fill fluid
Mounting type
Level of cleanliness of
wetted parts
1) Other materials on request
Diaphragm monitoring
Output signal
Alarm signal condition
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Model UPT-20 process transmitter mounted to a diaphragm seal
with clamp connection, welded
Diaphragm and diaphragm seal: Stainless steel 1.4435 (316L);
UNS S31603
Ra ≤ 0.38 µm [15 µin] per ASME BPE SF4, electropolished
■
(except for weld seam)
Ra ≤ 0.76 µm [30 µin] (except for weld seam)
■
Ra ≤ 0.76 µm [30 µin] (except for weld seam)
Plastic (PBT) with conductive surface per EN 60079-0:2012,
■
colour: Night blue RAL5022
Stainless steel case 1.4308 (CF-8), precision-cast (suitable
■
for chemical and petrochemical industries)
Stainless steel case 1.4308 (CF-8) with electropolished
■
surface (suitable for pharmaceutical, food and hygienic
industries)
Medicinal white mineral oil, FDA 21 CFR 172.878
■
Medicinal white mineral oil, FDA 21 CFR 178.362 (a)
■
USP-, EP- and JP-certified
USP = United States Pharmacopeia
EP = European Pharmacopoeia
JP = Japanese Pharmacopoeia
Direct mounting
Oil- and grease-free per ASTM G93-03 level F (< 1,000 mg/m²)
WIKA standard
1)
via switch contact and dial with red/green areas
The status of the switch contact (alarm signal) is monitored in
the process transmitter and output via the HART
an error signal on the current loop.
→ See chapter 10.8 "Alarm status of diaphragm monitoring"
For the monitoring element to change the status of the switch
contact, the specified set point must be reached for at least 1.5
seconds. This prevents shocks or vibrations from triggering the
alarm signal unintentionally.
WIKA operating instructions, model DMSU21A

protocol or as