MODEL: LM Plug-in Signal Conditioners M-UNIT LIMITER

MODEL: LM Plug-in Signal Conditioners M-UNIT LIMITER
MODEL: LM
Plug-in Signal Conditioners M-UNIT
LIMITER
(non-isolated)
Functions & Features
• Preventing DC output signals from going above or below
preset values
• High and low limits independently adjustable over entire
range
• Monitor jacks provided for setpoint adjustments
• High-density mounting
Typical Applications
• Securing the minimum fuel flow in a combustion control
loop
50
(1.97)
80
(3.15)
127
(5)
mm (inch)
MODEL: LM–[1][2]–[3]
ORDERING INFORMATION
• Code number: LM-[1][2]-[3]
Specify a code from below for each [1] through [3].
(e.g. LM-6A-B)
• Special input and output ranges (For codes Z & 0)
Voltage
1: 0 – 10 mV DC (Input resistance 10 kΩ min.)
15: 0 – 50 mV DC (Input resistance 10 kΩ min.)
16: 0 – 60 mV DC (Input resistance 10 kΩ min.)
2: 0 – 100 mV DC (Input resistance 100 kΩ min.)
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.)
4W: -10 – +10 V DC (Input resistance 1 MΩ min.)
5W: -5 – +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 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)
[3] POWER INPUT
[1] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
A1: 4 – 20 mA DC (Input resistance 50 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)
J: 0 – 10 μA DC (Input resistance 1000 Ω)
K: 0 – 100 μA DC (Input resistance 1000 Ω)
GW: -1 – +1 mA DC (Input resistance 1000 Ω)
FW: -10 – +10 mA DC (Input resistance 100 Ω)
Z: Specify current (See INPUT SPECIFICATIONS)
http://www.m-system.co.jp/
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
LM SPECIFICATIONS
ES-1628 Rev.5 Page 1/4
MODEL: LM
GENERAL SPECIFICATIONS
PERFORMANCE in percentage of span
Construction: Plug-in
Connection: M3.5 screw terminals
Housing material: Flame-resistant resin (black)
Isolation: Input or output to power
Overrange output: Approx. -5 to +105 % at 1 – 5 V
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Limit adjustments: Multi-turn screwdriver adjustments
(front); 0 – 100 %; factory set to 0 % for low, 100 % for high
Monitor output: 0 – 10 V for 0 – 100 % limit
Monitor jacks: 2 mm (.08") dia.
Accuracy: ±0.1 %
Limit monitor accuracy: ± 0.25 %
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 or output
to power to ground)
INPUT SPECIFICATIONS
• DC Current:
Shunt resistor attached to the input terminals (0.5 W)
Specify input resistance value for code Z.
• DC Voltage: -300 – +300 V DC
Minimum span: 3 mV
Offset: Max. 1.5 times span
Input resistance
Span 3 – 10 mV : ≥ 10 kΩ
Span 10 – 100 mV : ≥ 10 kΩ
Span 0.1 – 1 V : ≥ 100 kΩ
Span ≥ 1 V : ≥ 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: -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 (90 mA
at 24 V)
Operating temperature: -5 to +60°C (23 to 140°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 300 g (0.66 lbs)
http://www.m-system.co.jp/
LM SPECIFICATIONS
ES-1628 Rev.5 Page 2/4
MODEL: LM
EXTERNAL VIEW
Lo Set.
Hi Set.
COM.
Zero Adj.
Lo Limit Monitor
Span Adj.
Hi Limit Monitor
Front Cover (open)
DIMENSIONS unit: mm (inch)
CLAMP
(top & bottom)
20
(.79)
7.8 (.31)
5
4
3
7
8
1
2
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
8–M3.5
SCREW
50 (1.97)
6
80 (3.15)
80 (3.15)
35.4 (1.39)
DIN RAIL
35mm wide
107 (4.21)
40 (1.57)
127 (5)
[3.3 (.13)]
50 (1.97)
• When mounting, no extra space is needed between units.
TERMINAL ASSIGNMENTS unit: mm (inch)
6
5
4
3
7
8
1
2
12 (.47)
INPUT RESISTOR
(model: REM)
Input shunt resistor attached
for current input.
http://www.m-system.co.jp/
LM SPECIFICATIONS
ES-1628 Rev.5 Page 3/4
MODEL: LM
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
COM. HI
LO
Z
+
INPUT
R
–
*
3
Low Drift
Amplifier
Hi / Lo
Limiter
S
Output
Driver
1 +
OUTPUT
4
2 –
5
7 U(+)
6
8 V(–)
POWER
Base Socket
* Input shunt resistor attached for current input.
Specifications are subject to change without notice.
http://www.m-system.co.jp/
LM SPECIFICATIONS
ES-1628 Rev.5 Page 4/4
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