Appendix A: Specifications
A-13
Model Number Configuration
Basic model number
AVP200
Analog signal (4 to 20 mA DC) without travel transmission
- (1) (2) (3) (4) (5) (6) (7) (8) (9) - (10)
AVP201
Analog signal (4 to 20 mA DC) with travel transmission
AVP202
Analog signal (4 to 20 mA DC) HART
®
communication protocol
(1) Structure
(Air pipes, conduit connections)
Water-proof
(Rc1/4, G1/2)
X
Water-proof
(1/4 NPT, 1/2 NPT)
P
TIIS Flameproof with cable gland *
1
(Rc1/4, G1/2)
E
(2) Finish
Standard (Baked acrylic) *
2
S
Corrosion proof (Baked epoxy) *
2
B
Silver finish (Baked acrylic)
D
(3) Positioner
action*
3
Direct action - Air pressure increases with control signal increase
D
Reverse action - Air pressure decreases with control signal increase
R
(pressure gauge range, max. voltage setting of regulator)
(4) Supply air
pressure
classification
130 ≤ Ps ≤ 150 kPa
(200 kPa, 400 kPa)
1
150 < Ps ≤ 300 kPa
(400 kPa, 400 kPa)
2
300 < Ps ≤ 400 kPa
(600 kPa, 400 kPa)
3
400 < Ps ≤ 450 kPa
(600 kPa, 700 kPa)
4
450 < Ps ≤ 700 kPa
(1000 kPa, 700 kPa)
5
(5) Scale unit
(Pressure
gauge)
kPa
A
(kgf/cm
2
) *
4
(B)
MPa
C
bar
D
(psi) *
4
(E)
*1. One set of TIIS Flameproof cable gland shall be attached for model AVP200. Two sets are for model AVP201.
*2. Standard finish is equal to previous Y138A. Corrosion proof is equal to previous Y138B.
*3. When the input signal (power) is shut off, select direct action to make the output air pressure of this device zero, and reverse action to make the output at the maximum
air pressure (supply air pressure). Positioner action differs from actuator and control valve action, so be careful in selecting the positioner’s action.
*4. No domestic sales in Japan due to Non-SI unit.
Individual specifications
Following shows default and optional settings of each configurable parameter of AVP.
Unless otherwise specified, the Smart Valve Positioner will be shipped in the following configuration.
Input control signal
4 to 20 mA
The minimal span for custom range = 4 mA
Output characteristic *
1
Liner
EQ or QO can be ordered or set by user.
Valve action *
2
Direct (Plug above seat)
Reverse (Plug below seat) can be ordered or set by use
Output signal for position transmission 4 to 20 mA
DE also selectable
*1. Refer to the following when selecting the input/output characteristics.
*2. Positioner action differs from actuator and control valve action, so be careful in selecting the positioner’s action.
Figure 2. Input-output
characterization
Selection of input characterization
The flow characteristic of a control valve is set by selecting the valve plug characteristic, and the input-output
characteristics of the positioner must be specified as linear. However, if the valve plug flow characteristic, which
depends on the control valve’s shape and structure, does not meet requirements, you can correct the overall flow
characteristic of the control valve by specifying “equal percentage” or “quick opening” for the input-output char-
acteristics of the positioner, as shown in Table 5.
Table 5.
Control valve flow characteristics correction by the positioner
Characteristic of valve plug Input-output characterization of positioner Overall flow characteristic of control valve
Linear
Quick opening
Quick opening
Linear
EQ%
EQ%
EQ%
Quick opening
Linear
Note: If the valve plug characteristic is “quick opening,” the overall flow characteristic of the control valve cannot be
linear even if “equal percentage” is set for the positioner’s input-output characteristics. (This is because when
the valve plug characteristic is “quick opening,” the control valve works as an ON/OFF valve and it is difficult
to correct its characteristics by changing the setting of the positioner.)
Summary of Contents for AVP200
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