Instruction Manual
D200160X012
4195K Controllers
July 2018
107
Key
Description
Part Number
Note
One type of pressure gauge is used for both output pressure and supply
pressure indication.
46* Pressure gauge (2 req'd)
48* Bellows ass'y (2 req'd)
49
Bellows beam
0.2 to 1.0 bar (3 to 15 psig)
0.4 to 2.0 bar (6 to 30 psig)
51
Relief valve cover plate
52* O‐ring
Used w/key 51 (2 req'd)
53
Machine screw, fill hd
Used w/key 51 (2 req'd)
4195KA, KB, and KS controllers
4195KC controllers (7 req'd)
54
Reset restriction valve (4195KB controllers only)
55
Differential relief valve
For all 4195KB and KC controllers w/suffix
letter F, anti‐reset windup
57
Pressure control block
1/4‐18 NPT Internal Process Connection
1 req'd for all types w/o remote set pt and
w/o ext fdback, except none required
for units with Bourdon tube isolator
2 req'd for all types w/remote set pt and
w/o ext fdback, except 1 req'd for units
with Bourdon tube isolator
2 req'd for all types w/ext fdback and
w/o remote set pt, except 1 req'd for
units with Bourdon tube isolator
3 req'd for all types w/ext fdback and
w/remote set pt, except 2 req'd for units
with Bourdon tube isolator
1/2‐14 NPT External Process Connection
For all types w/o remote set pt
and w/o ext fdbck (1 req'd)
Pressure control block
1/4‐18 NPT Internal Process Connection
1 req'd for all types w/o remote set pt and
w/o ext fdback, except none required
for units with Bourdon tube isolator
For all types w/remote set pt
and w/o ext fdbck
For all types w/ext fdback and
w/o remote set pt
For all types w/ext fdback and
w/remote set pt
Key
Description
56
Process and set pt indicator ass'y w/sensing element
Note
Individual indicator ass'y parts are listed in two subsections of this parts
list: the Process and Set Point Indicator Assembly (key 56) subsection
and the Indicator Assembly (key 101) subsection. Key numbers for
individual indicator parts also appear in figures 7‐2 and 7‐3.
Process and set pt indicator ass'y
w/Bourdon tube sensing element
Process and set pt indicator ass'y
w/capsular element ass'y
58
Cap screw, hex hd
2 req'd for use w/each pressure
control block (key 57)
59
Hex reducing nipple, (use only when specified)
1/2 NPT external
All ranges up to 0‐345 bar (0‐5000 psig)
60
Reducing adaptor, (use only when specified)
1/2 NPT internal
All ranges up to 0‐345 bar (0‐5000 psig)
61
Process scale
For indicator ass'y (key 101)
62
Remote set pt ass'y (suffix letter M)
Note
Individual assembly parts are listed in the Remote Set Point Assembly
subsection of the parts list. Key numbers for individual ass'y parts also
appear in figure 7‐6.
0.8 bar (12 psig) span
1.7 bar (24 psig) span
64
Machine screw, fill hd
4 req'd to attach process and set pt
indicator ass'y (key 56) to frame
65
Feedback link ass'y
71
Machine screw, fill hd
For all 4195KA, KB, and KS controllers (4 req'd)
For all 4195KC controllers (6 req'd)
*Recommended spare parts