Siemens P 129, Rings for process flanges on Low-pressure side, A31 Sealing screws

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure, flow and level

DS III series for level

Selection and Ordering data		Order No.
SITRANS P pressure transmitter
for level
DS III PA series (PROFIBUS PA)		7 M F 4 6 3 4 -
DS III FF series (FOUNDATION Fieldbus)		7 M F 4 6 3 5 -
		1 7 Y 77 - 7777
Nominal measuring range
250 mbar	(3.63 psi)	D
600 mbar	(8.70 psi)	E
1600 mbar	(23.2 psi)	F
5 bar	(72.5 psi)	G
Process connection of low-pressure side
Female thread ¼-18 NPT with flange connection
• Mounting thread M10 to DIN 19213		0
(only for replacement needs)
• Mounting thread 7/16-20 UNF to EN 61518		2
Non-wetted parts materials
Process flange screws	Electronics housing
Stainless steel	Die-cast aluminium	2
Stainless steel	Stainless steel precision	3
	casting
Version
• Standard version		1
• International version, English label inscriptions,		2
documentation in 5 languages on CD
Explosion protection
• Without		A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)"		B
- "Explosion-proof (EEx d)"1)		D
- "Intrinsic safety and explosion-proof e		P
nclosure (EEx ia + EEx d)"2)
- "Ex nA/nL (zone2)"		E
- "Intrinsic safety, explosion-proof enclosure		R
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"2) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof		N C
(is + xp)"1)
Electrical connection / cable entry

• Screwed gland M20x1.5	B
• Screwed gland ½-14 NPT	C
• Plug M12 incl. mating connector3)	F

	Display
	• Without indicator		0
	• Without visible digital indicator (digital indicator }		1
	hidden, setting: mA)
	• With visible digital indication		6
	• With customer-specific digital indication (setting		7
	as specified, Order code "Y21" or required)
	Ordering information:
	1st order item: Pressure transmitter 7MF4634-...
2nd order item: Mounting flange 7MF4912-...
	Ordering example:
	Item line 1:	7MF4634-1EY20-1AA1
	Item line 2:	7MF4912-3GE01

Included in delivery of the device:

•Brief instructions (Leporello)

•CD-ROM with detailed documentation

•Sealing plug(s) or sealing screw(s) for the process flanges(s)

1)Without cable gland, with blanking plug.

2)With enclosed cable gland EEx ia and blanking plug.

3)Not together with types of protection "Explosion-proof" and "Intrinsic safety and explosion-proof"

Selection and Ordering data	Order code
Further designs		HART	PA	FF
Add "-Z" to Order No. and
specify Order code.
O-rings for process flanges on					2
low-pressure side
(instead of FPM (Viton))
• PTFE (Teflon)	A20	￿	￿	￿
• FEP (with silicone core, approved for food)	A21	￿	￿	￿
• FFPM (Kalrez, compound 4079)	A22	￿	￿	￿
• NBR (Buna N)	A23	￿	￿	￿
Plug
• Han 7D (metal, gray)	A30	￿
• Han 8U (instead of Han 7D)	A31	￿
Sealing screws
¼-18 NPT, with valve in material of process	A40	￿	￿	￿
flanges
Cable sockets for M12 connectors (metal)	A50	￿	￿	￿
Rating plate inscription
(instead of German)
• English	B11	￿	￿	￿
• French	B12	￿	￿	￿
• Spanish	B13	￿	￿	￿
• Italian	B14	￿	￿	￿
English rating plate	B21	￿	￿	￿
Pressure units in inH2O or psi
Quality inspection certificate (Factory cali-	C11	￿	￿	￿
bration) to IEC 60770-2
Acceptance test certificate	C12	￿	￿	￿
To EN 10204-3.1
Factory certificate	C14
		￿	￿	￿
To EN 10204-2.2
"Functional Safety (SIL)" certificate	C20	￿
"PROFIsafe" certificate and protocol	C21		￿
Setting of upper limit of output signal to	D05	￿
22.0 mA
Type of protection IP68	D12	￿	￿	￿
(not together with PROFIBUS plug M12)
Supplied with oval flange	D37
		￿	￿	￿
(1 item), PTFE packing and stainless steel
screws in thread of process flange
Use on zone 1D / 2D	E01
		￿	￿	￿
(only together with type of protection
"Intrinsic safety (EEx ia)")
Use on zone 0	E02
		￿	￿	￿
(only together with type of protection
"Intrinsic safety (EEx ia)")
Overfilling safety device for flammable	E08	￿	￿
and non-flammable liquids
(max. PN 32 (MVWP 464 psi), basic device
with type of protection "Intrinsic safety
(EEx ia)")
Explosion-proof "Intrinsic safety" to	E25	￿	￿	￿
INMETRO (Brazil)
(only for transmitter 7MF4...-.....-.B..)
Explosion-proof "Intrinsic safety" to	E55
		￿	￿	￿
NEPSI (China)
(only for transmitter 7MF4...-.....-.B..)
Explosion protection "Explosion-proof" to	E56
		￿	￿	￿
NEPSI (China)
(only for transmitter 7MF4...-.....-.D..)
Explosion-proof "Zone 2" to NEPSI (China)	E57
		￿	￿	￿
(only for transmitter 7MF4...-.....-.E..)
Interchanging of process connection side	H01
		￿	￿	￿

Siemens FI 01 · 2009

2/129