ES-1356 Rev.9
MLV
Plug-in Signal Conditioners M-UNIT
LVDT TRANSMITTER
Functions & Features
• Providing synchronous demodulation and conditioning for LVDT (Linear Variable Differential Transformer) transducers
• Wide input range 20 – 1000 mV/V
• Isolation up to 2000 V AC
• LCD meter
• High-density mounting
Typical Applications
• Measuring motion and other dynamic parameters
MODEL: MLV–[1]–[2][3]
ORDERING INFORMATION
• Code number: MLV-[1]-[2][3]
Specify a code from below for each of [1] through [3].
(e.g. MLV-A-B/E/Q)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
INPUT
LVDT 20 – 1000 mV/V at maximum deviation
[1] 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 100 Ω min.)
4
: 0 – 10 V DC (Load resistance 1000 Ω min.)
5
: 0 – 5 V DC (Load resistance 500 Ω min.)
6
: 1 – 5 V DC (Load resistance 500 Ω min.)
4W
: -10 – +10 V DC (Load resistance 2000 Ω min.)
5W
: -5 – +5 V DC (Load resistance 1000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[2] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
DC Power
S
: 12 V DC
R
: 24 V DC
V
: 48 V DC
P
: 110 V DC
[3] OPTIONS (multiple selections)
Input Signal Indicator
blank
: Without
/E
: With (0.0 - 100.0 % display)
Other 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
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to power
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
Gain adjustment
: 1 – 50 (front)
Excitation adjustment
: 6 – 10 Vp-p (front)
■ DISPLAY (Input indicator)
LCD digital display
: 0.0 - 100.0 % (min. digit 0.1 %)
(No scaling)
INPUT SPECIFICATIONS
Input
: LVDT; 20 – 1000 mV/V at max. deviation; Input voltage to the MLV must be over 160m Vp-p.
•
Excitation
: 6 – 10 Vp-p variable (8 Vp-p standard)
Frequency
: Approx. 4 kHz
Maximum current
: 20 mA r.m.s.
Caution
: The input signal may be affected by the type and length of the cable between the LVDT and the transmitter.
When calibrating the system before installation, use the same type and length of cable.
If there is an error greater than the described accuracy, or when you need to change the frequency, please consult with us.
Certain type of LVDT may not be usable with the MLV. Consult us before ordering to confirm the compatibility.
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
: -10 – +12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 10 mA max.; 5 mA for negative voltage output; at ≥ 0.5 V
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 2 VA
•
DC
: Operational voltage range: rating ±10 %, or 85 – 150 V for 110 V rating (ripple 10 % p-p max.)
approx. 2 W (80 mA at 24 V)
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 400 g (0.88 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 %
Display accuracy:
±(0.1 % of FS + 1 digit)
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°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
: 2000 V AC @1 minute (input to output to power to ground)
EXTERNAL VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM