M-SYSTEM Love Model Proxy Signal Isolator

M-SYSTEM Love Model Proxy Signal Isolator

Main functions and strengths
● Analog thermistor converter
Equipped with linear compensation and fuse alarm functions
The measurement circuit uses a dual constant current excitation method, allowing input wire resistance values up to 200 Ω
● Quick response type can be selected
● Wide range of applicable power sources
● Can be installed with high density
Typical Applications
● Used for converting standard process signals
Long distance wiring can be carried out between the thermistor and the transformer
● Used in combination with intrinsic safety barriers

Machine Specifications
Construction: Thin Insertion Construction
Connection method: M3 screw terminal connection (allowable torque of screw is 0.8N · m)
Terminal screw material: iron surface treated with chromate (standard) or stainless steel
Shell material: Black flame resistant resin
Isolation: input-output power supply room
Output range: approximately -10 to+120% (at 1-5V DC)
Zero adjustment range: -5% to+5% (adjustable from the front)
Range adjustment range: 95-105% (adjustable from the front)
When the circuit breaker alarm is triggered: the lower limit is below -10% and the upper limit is above 110%
Linearization Circuit: Standard Equipment (Input Signal Code C Wireless Linearization Circuit)

Enter specifications
Please refer to the section "When selecting input signal Cu" for the input specifications of signal code C.
Allow wire resistance: Each wire should be below 200 Ω
Input detection current: 2mA (1mA for Ni 508.4 Ω)

Output specifications
■ Current output (manufacturing possible range)
Output range: 0-20mA DC
Output range: 1-20mA
Output zero current: less than 1.5 times the output range
Allow load resistance: a resistance value that ensures the voltage between the output terminals of the converter is below 15V
Voltage output (manufacturing possible range)
Output range: -10 to+12V DC
Output range: 5mV~22V
Output zero voltage: less than 1.5 times the output range
Allowable load resistance: A resistance value that allows the load current to be below 1mA (however, the output voltage should be above 0.5V)

Set specifications
power consumption
AC power supply:
Approximately 3VA at 100V AC
Approximately 4VA at 200V AC
Approximately 5VA at 264V AC
DC power supply: approximately 3W
Temperature range for use: -5 to+55 ℃
Humidity range: 30-90% RH (non condensing)
Installation: Wall mounted or DIN rail mounted
Weight: Approximately 150g

Performance (expressed as a percentage relative to range)
Standard accuracy: ± 0.2% (When selecting input signal code C, please refer to the item "When selecting input signal Cu"). )
Temperature coefficient: ± 0.015%/℃ (When selecting input signal code C, please refer to the item "When selecting input signal Cu"). )
Circuit breaker detection time: less than 10 seconds
The impact of power supply voltage fluctuations: ± 0.1%/allowable voltage range
Insulation resistance: 100M Ω or above/500V DC
Isolation strength: Input output power ground 2000V AC for 1 minute

When selecting the input signal Cu
■ Enter specifications
Induced current (range of resistance value of input signal)
140Ω≤ 量程≤300 Ω 1mA
12Ω≤ 量程＜140 Ω 2mA
8Ω≤ 量程＜12 Ω 3mA
3.5Ω≤ 量程＜8 Ω 5mA
Allow wire resistance
Take the smaller of the resistance value obtained from the following formula or 200 Ω as the allowable wire resistance.
Allow wire resistance (Ω)=(2500-100.0% input resistance value (Ω) x induced current (mA)) ÷ (3 x induced current (mA))
Possible manufacturing range
3.5 Ω≤ Input resistance range ≤ 300 Ω
100.0% input resistance value (Ω) ≤ (2500-3 × wire resistance (Ω) × induced current (mA)) ÷ induced current (mA)

■ Performance
Standard accuracy
When the input resistance range is above 20 Ω: ± 0.2%
In addition to the above, the standard accuracy should be calculated using the following formula.
Standard accuracy (%)=0.02 (Ω) ÷ Input resistance range (Ω) × 100+
0.1 (%) × 40 (mV) ÷ (Input resistance range (Ω) × Induced current (mA))
Temperature coefficient
When the range of input resistance value (Ω) × induced current (mA) is above 40mV:
±0.015%/℃
In addition to the above, the temperature coefficient should be calculated using the following formula.
Temperature coefficient (%/℃)=0.015 (%/℃) × 40 (mV) ÷ (input resistance range (Ω) × induced current (mA))

M-SYSTEM Love Model Proxy Signal Isolator