Construction for gauge pressure and absolute pressure (from the differential pressure series), differential pressure and flow
rate
Weight Approx. 3.9 kg (8.5 lb) with aluminum enclosure
Approx. 5.9 kg (13 lb) with stainless steel enclosure
Material
● Wetted parts materials
Seal diaphragm Stainless steel, mat. no. 1.4404/316L, Alloy C276, mat. no. 2.4819, Monel 400, mat.
no. 2.4360, tantalum or gold
Pressure caps and vents Stainless steel, mat. no. 1.4408 to PN 160, mat. no. 1.4571/316Ti for PN 420, Al‐
loy C22, 2.4602 or Monel 400, mat. no. 2.4360
O-ring FKM (Viton) or optionally: PTFE, FEP, FEPM and NBR
● Non-wetted parts materials
Electronics housing
● Low-copper die-cast aluminum GD‑AlSi 12 or stainless steel precision casting,
mat. no. 1.4409/CF-3M
● Standard: Powder coating with polyurethane
D20 option: 2 coats: Coat 1: epoxy-based; coat 2: Polyurethane
● Stainless steel nameplate (1.4404/316L)
Pressure cap screws Stainless steel ISO 3506-1 A4-70
Mounting bracket Steel, galvanized, stainless steel 1.4301/304, stainless steel 1.4404/316L
Process connection
1
/
4
‑18 NPT female thread and flange connection with
7
/
16
-20 UNF fastening screw
thread in accordance with EN 61518 or M10 fastening screw thread in accordance
with DIN 19213 (M12 for PN 420 (MAWP 6092 psi))
Electrical connection Screw terminals
Cable inlet using the following screwed joints:
● M20 x 1.5
● ½-14 NPT
● Han 7D/Han 8D connector
1)
● M12 connector
1)
Han 8D is identical to Han 8U.
Construction for level
Weight
● In accordance with EN (pressure
transmitter with mounting flange,
without tube)
Approx. 11 … 13 kg (24.2 … 28.7 lb) with aluminum enclosure
Approx. 13 ... 15 kg (28.7 ... 33 lb) with stainless steel enclosure
● In accordance with ASME
(pressure transmitter with
mounting flange, without tube)
Approx. 11 … 18 kg (24.2 … 39.7 lb) with aluminum enclosure
Approx. 13 ... 20 kg (28.7 ... 44 lb) with stainless steel enclosure
Material
● Wetted parts materials
Plus side
Technical data
8.6 Construction
SITRANS P320/P420 with 4 to 20 mA/HART
Compact Operating Instructions, 09/2018, A5E38874562-AB 97
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