MD-LC2 LIGHTNING SURGE PROTECTOR FOR STRAIN GAUGE USE
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Detail
·Some details are not shown. Please refer to specification sheets for all information.
MD-LC2
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR
STRAIN GAUGE USE
(6-wire remote sensing)
Functions & Features
•Designed to protect strain gauge transmitters from lightning surge damage that enters on the wiring between the strain gauge and the transmitter
•Six-wire remote sensing
•Absorbing surges only without affecting instrumentation signal
MODEL: MD–LC2
ORDERING INFORMATION
• Code number: MD-LC2
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
Housing material: Flame-resistant resin (black)
INSTALLATION
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 250 g (0.55 lbs)
PERFORMANCE
Maximum line voltage
Signal (L1 to L2): ±0.3 V
Excitation (+ to –): 15 V
Excitation (S+ to S–): 15 V
Signal (L1, L2) to ground: ±15 V
Excitation (+, S+) to ground: +30/-15 V
Excitation (–, S–) to ground: ±15 V
Discharge voltage (peak voltage)
Signal (L1 to L2): ±0.3 V min.
Excitation (+ to –): 15 V min.
Excitation (S+ to S–): 15 V min.
Signal (L1, L2) to ground: ±15 V min.
Excitation (+, S+) to ground: +30/-15 V min.
Excitation (–, S–) to ground: ±15 V min.
Maximum surge voltage
Signal (L1 to L2): ±20 V max.
Excitation (+ to –): 40 V max.
Excitation (S+ to S–): 40 V max.
Signal (L1, L2) to ground: ±40 V max.
Excitation (+, S+) to ground: +65/-40 V max.
Excitation (–, S–) to ground: ±40 V max.
The maximum voltage that could pass through M-RESTER. Protected equipment must be able to withstand this voltage for very short time period.
Response time: 4 nsec.
Leakage current
Signal (L1 to L2): ≤ 0.2 µA at ±0.3 V DC
Excitation (+ to –): ≤ 2 µA at 15 V DC
Excitation (S+ to S–): ≤ 2 µA at 15 V DC
Line to ground: ≤ 2 µA at ±15 V DC
Discharge current capacity: 5000 A (8 / 20 μsec.)
Internal series resistance and max. load current
Signal (L1, L2) each: approx. ≤ 10 Ω; max. 100 mA
Excitation (+, –) each: approx. ≤ 4 Ω; max. 200 mA
Excitation (S+, S–) each: approx. ≤ 10 Ω; max. 100 mA
CONNECTION EXAMPLES
GROUNDING
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)
SCHEMATIC CIRCUITRY
M-System Co., Ltd.
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PRODUCTS LIST
- Signal Conditioners
- 2-wire Signal Conditioners
- Power Transducers
- Indicators
- Tower Lights
- Limit Alarms
- Gateway, Remote IO
- Paperless Recording System
- PC Recorder
- Web Data Loggers
- PID Control Components
- BA&Energy Monitoring Components
- Temperature Controllers
- Electric Actuators
- Lightning Surge Protectors
STATISTIC
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