Instruction Manual
D200163X012
4660 Pressure Pilot
June 2017
3
Table 1. Specifications
Available Configurations
High‐low, low‐only, or high‐only set point capability
Input Signal
Type:
Process pressure sensed with Bourdon tube
Bourdon Tube Ratings:
See table 2 or 3
Overpressure Protection:
Maximum allowable
emergency process pressures and maximum
allowable process pressures to ensure set point
readjustability are shown in table 4
Output Signal
Zero or full supply pressure (automatically resets)
Supply Pressure
(1)
Normal Operating Pressures:
1.4 to 4.4 bar
(20 to 65 psig)
Medium:
Air or Natural Gas
Supply medium must be clean, dry, and noncorrosive
Per ISA Standard 7.0.01
A maximum 40 micrometer particle size in the air
system is acceptable. Further filtration down to 5
micrometer particle size is recommended. Lubricant
content is not to exceed 1 ppm weight (w/w) or
volume (v/v) basis. Condensation in the air supply
should be minimized
Per ISO 8573-1
Maximum particle density size:
Class 7
Oil content:
Class 3
Pressure Dew Point:
Class 3 or at least 10
C less than
the lowest ambient temperature expected
Steady‐State Air Consumption
(2)(3)
Output Signal at Zero:
≤
0.134 normal m
3
/hr (
≤
5 scfh)
Output Signal at Full Supply Pressure:
≤
0.00134
normal m3/hr (
≤
0.05 scfh)
Set Point Adjustments
Continuously adjustable between 3 and 97% of
Bourdon tube rating; see table 2 or 3 for ranges
Performance in Percentage of Bourdon Tube
Rating
Repeatability:
≤
0.25%
Set Point
D
P
min
(see table 2 or 3)
Single High‐Low Unit:
10% for up to 172.4 bar (2500
psig) Bourdon tubes; 15% for 344.8 and 517.1 bar
(5000 and 7500 psig) Bourdon tubes
Low‐Only and High‐Only Pair:
3%
Trip‐to‐Reset Zone (see table 2 or 3):
≤
1.5%
Exhaust Capacity
C
g
≥
15
Pilot Supply Flow Requirement
(2)
Pilot requires minimum of 4.02 normal m
3
/hr
(150 scfh) to activate relay
Operating Conditions
(1)
Condition
Normal Operating
Limits
Nominal
Reference
Ambient
temperature
-59 to 71
C (-75 to 160
F)
21
C (70
F)
Operating Influences on Switch Point Sensitivity
Supply Pressure:
≤
0.05% of Bourdon tube rating for a
10% change in supply pressure
Ambient Temperature:
≤
2% Bourdon tube rating
throughout normal operating limits with nominal
reference
Time:
≤
1% of Bourdon tube rating over 30 days at
ambient temperature nominal reference
Process Pressure:
Range shift or set point drift can
occur if process pressure exceeds Bourdon tube
rating
Pressure Connections
1/4 NPT internal
Mounting
Panel, rack, pipestand, or actuator
Hazardous Area Classification
Complies with the requirements of ATEX Group II
Category 2 Gas and Dust
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