Fairchild T7800 Installation, Operation And Maintanance Manual

FAIRCHILD T7800 STANDARD RANGE
MINIATURE ELECTRO-PNEUMATIC TRANSDUCER
Installation, Operation and Maintenance Instructions
Figure 1. Model T7800 Standard Range Transducer Identification Number System
GENERAL INFORMATION
The Model T7800 Series of Electro-Pneumatic Trans­
ducer converts a DC input signal to a linearly proportional
pneumatic output pressure.
SPECIFICATIONS
Functional Specifications
psig
[BAR]
(kPa)
3-15
Output
[0.2-1.0]
Range
(20-100)
Input 4-20 mA DC, 0-10 VDC,
Range 1-9 VDC, 0-5 VDC, 1-5 VDC
20-120
Supply
[1.5-8.0]
Pressure
(150-800)
5
Minimum
[0.35]
Span
(35)
psig
psig
[BAR] [BAR]
(kPa)
(kPa)
3-27
6-30
[0.2-1.8] [0.4-2.0]
(20-180)
(40-200)
35-120
32-120
[2.2-8.0] [2.4-8.0]
(240-800)
(220-800)
10
10
[0.7]
[0.7]
(70)
(70)
Identification Number
Electrical Connections
1/2 NPT Conduit
Fitting with Pigtail
Terminal Block
DIN 43650 Connection
Rack Mount
Underwriting Group
Factory Mutual
Canadian Standard
ATEX
Approval Class
1
Intrinsically Safe
Non-Incendive (Division 2)
Input
4-20mA
1-5 VDC
0-5 VDC
1-9 VDC
0-10 VDC
Output
Select appropriate psig, [BAR] or (kPa).
3-15 psig
3-27 psig
6-30 psig
[0.2-1.0 BAR]
[0.2-1.8 BAR]
[0.4-2.0 BAR]
(20-100 kPa)
(20-180 kPa)
(40-200 kPa)
1
Intrinsically Safe approval, including non-incendive
(Division 2), on 4-20 mA units only.
2
Non-incendive (Division 2) approval on FM voltage
input units only.
3 psig
A i r C o n ­
[0.2 BAR]
sumption
(20 kPa)
All Ranges 3.5
3
(SCFH)
(.10 m /HR)
2.5 (4.25m /HR) @
Flow Rate
25 psig, [1.7 BAR],
( S C F M )
(170 kPa) supply &
9 psig, [0.6 BAR],
(60 kPa) output.
Temperature
Operating . . . . . . . . . . . . . . . . . . . . .
Range
Storage . . . . . . . . . . . . . . . . . . . . .
S p a n / Z e r o
Screwdriver adjustments located on front
Adjustments
of unit
Required
Two Wire Current Input
Operating
7.2 VDC @ 20 mA (4-20 mA signal)
Voltages
Supply
Three Wire Voltage Input
Voltage
7-30 VDC, less than 3 mA
S i g n a l
Three Wire Voltage Input
Impedance
10 Kilohms
7800 ­
T
(A)
(T)
(D)
(R)
(F)
(C)
(E)
I
( )
2
(N)
(4)
(5)
(7)
(9)
(0)
(01)
(02)
(03)
(11)
(12)
(13)
(21)
(22)
(23)
Set Point
9 psig
15 psig
[0.6 BAR] [1.0 BAR] [2.0 BAR]
(60 kPa) (200 kPa)
(100 kPa)
7.0 9.5
3 3
(.20 m /HR) (.27 m /HR) (.38 m /HR)
3 3
9.0 (15.3m /HR) @
120 psig, [8.0 BAR],
(800 kPa) supply &
or
9 psig, [0.6 BAR],
(60 kPa) output.
-40 F to +160 F
(-40 C to +71.2 C)
-40 F to +180 F
(-40 C to +82.2 C)
30 psig
13.5
3