ES-1447 Rev.7
FRT
Space-saving Plug-in Signal Conditioners F-UNIT
RATIO TRANSMITTER
(output bias; non-isolated)
Functions & Features
• Providing precise matching of DC control signals
to final control elements in open- or closed-loop systems
• Monitor jacks provided for ratio & bias adjustments
• Ratio adjustable from 0.5 to 3.0
• Bias adjustable within ±100 %
• Isolation up to 2000 V AC
• High-density mounting
Typical Applications
• Ratio control for air/fuel flows or for two flows
• Gain calculation for manipulated variable from a controller
• Large scale signal span adjustment
MODEL: FRT–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: FRT-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. FRT-6A-K/Q)
• Special input and output ranges (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT
Current
A
: 4 – 20 mA DC (Input resistance 250 Ω)
B
: 2 – 10 mA DC (Input resistance 500 Ω)
C
: 1 – 5 mA DC (Input resistance 1000 Ω)
D
: 0 – 20 mA DC (Input resistance 50 Ω)
E
: 0 – 16 mA DC (Input resistance 62.5 Ω)
F
: 0 – 10 mA DC (Input resistance 100 Ω)
G
: 0 – 1 mA DC (Input resistance 1000 Ω)
H
: 10 – 50 mA DC (Input resistance 100 Ω)
Z
: Specify current (See INPUT SPECIFICATIONS)
Voltage
3
: 0 – 1 V DC (Input resistance 1 MΩ min.)
4
: 0 – 10 V DC (Input resistance 1 MΩ min.)
5
: 0 – 5 V DC (Input resistance 1 MΩ min.)
6
: 1 – 5 V DC (Input resistance 1 MΩ min.)
0
: Specify voltage (See INPUT SPECIFICATIONS)
[2] OUTPUT
Current
A
: 4 – 20 mA DC (Load resistance 750 Ω max.)
B
: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C
: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D
: 0 – 20 mA DC (Load resistance 750 Ω max.)
E
: 0 – 16 mA DC (Load resistance 900 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G
: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[3] POWER INPUT
AC Power
K
: 85 – 132 V AC
(Operational voltage range 85 – 132 V, 47 – 66 Hz)
L
: 170 – 264 V AC
(Operational voltage range 170 – 264 V, 47 – 66 Hz)
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P
: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal
: Nickel-plated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input or output to power
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Ratio adjustment:
0.5 – 3.0 (front)
Bias adjustment:
-100 – +100 % (front)
Monitor jack diameter:
2 mm (.08")
Equation:
Xo
=
KXi
+
B
where
Xo
: output (%)
Xi
: input (%)
K
: ratio
(linear characteristic; 0.5 – 3.0)
B
: bias (-100 – +100 %)
(factory setting:
K
= 1,
B
= 0 %)
INPUT SPECIFICATIONS
■
DC Current
:
Shunt resistor attached to the input terminals (0.5 W)
Specify input resistance value for code Z.
■
DC Voltage:
0 – 300 V DC
Minimum span:
1 V
Offset:
Max. 1.5 times span
Input resistance:
≥ 1 MΩ
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 15 V max.
■
DC Voltage
: 0 – 12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Power input
•
AC
: Approx. 4.5 VA
•
DC
: 24 V approx. 80 mA; 110 V approx. 20 mA
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail; Standard Rack Mounting Frame BX-16H available
Weight
: 200 g (0.44 lb)
PERFORMANCE in percentage of span
Setpoint accuracy:
±1.0 % (for monitor output voltage)
Computing accuracy:
±0.5 % (with ratio=1, bias=0 %)
Temp. coefficient
: ±0.025 %/°C (±0.014 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
Power input code R:
2000 V AC @ 1 minute (input or output or power to ground)
500 V AC @ 1 minute (I/O to power)
Power input code K, L, P:
2000 V AC @ 1 minute (input or output or power to ground)
1500 V AC @ 1 minute (I/O to power)
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM