Diagnostic Connections - Emerson Fisher 3710 Instruction Manual

3710 and 3720 Positioners
September 2017
Key Description
38 Feedback shaft (cam shaft)
(1)
39 Washer (metric)
For feedback shaft (cam shaft) (key 38)
(1)
40 Retaining ring (e‐clip) (metric)
for feedback shaft
(cam shaft) (key 38)
41 Vent screen
Note
To attach a gauge or tire valve to the positioner or converter, use a pipe
nipple (key 68) and a street tee (key 56).
53* Supply gauge, plastic case,
W/chrome‐plated brass connection
(requires street tee, key 56)
0 to 30 psig/0 to 0.2 MPa/0 to 2 bar
0 to 60 psig/0 to 0.4 MPa/0 to 4 bar
0 to 160 psig/0 to 1.1 MPa/0 to 11 bar
54* Instrument gauge, plastic case,
W/chrome‐plated brass connection
(requires street tee, key 56)
0 to 30 psig/0 to 0.2 MPa/0 to 2 bar
0 to 60 psig/0 to 0.4 MPa/0 to 4 bar
55* Output gauge, plastic case w/chrome‐plated brass connection
(requires street tee, key 56)
0 to 30 psig/0 to 0.2 MPa/0 to 2 bar
0 to 60 psig/0 to 0.4 MPa/0 to 4 bar
0 to 160 psig/0 to 1.1 MPa/0 to 11 bar
(single or double action)
56 Street tee, qty 1, required to attach each
gauge or tire valve to pipe bushing (key 68)
57 Pipe plug, for single‐acting positioners only
62 Tire valve
Single action (1 req'd) or Double action (2 req'd)
63 Lubricant, silicone sealant, (not furnished with positioner)
64 Anti‐seize sealant (not furnished with positioner)
65 Lubricant, 20W/50 Motor Oil or equivalent
(not furnished with positioner)
66 PTFE Petroleum based lubricant
(not furnished with positioner)
48
Part Number Key
68
69
(1)
70

Diagnostic Connections

(refer to figure 16)
FlowScanner valve diagnostics system hook‐up
Includes pipe tee, pipe nipple, pipe bushings, connector body, and body
protector. If ordered for units with gauges, a stem is also included.
For 3710 Positioner
11B4040X012
11B4040X022
11B4040X032
11B4040X012
11B4040X022
For 3720 Positioner
11B4040X012
11B4040X022
11B4040X032
*Recommended spare parts
1. Also recommended as a spare if metric
fasteners are not available at the installation site.
Instruction Manual
Description
Pipe bushing, qty 1, required to attach each
pipe tee (key 56) to positioner connection
Spacer, installed between the feedback
shaft (key 38) and the positioner base plate
Screw (metric), slot‐head/cross‐recessed
Used to secure key 18, supply cover, to key 16,
base ass'y (2 req'd)
Single‐acting units
For units w/gauges
For units w/o gauges
Double‐acting units
For units w/gauges
For units w/o gauges
Single‐acting units
For units w/gauges
For units w/o gauges
Double‐acting units
For units w/gauges
For units w/o gauges
D101728X012