***LA-2传感器-美国原装

***LA-2传感器-美国原装-传感器美国Omega

深圳市鑫博恒业科技有限公司***供应***LA-2传感器-美国原装传感器美国Omega

***LA-2传感器-美国原装传感器美国Omega

***LA-2
 

过程测量和控制仪器 » 信号调节器和*** » ***LA-SERIES
 

直流输入现场可配置限报
***la-1（行程单、双刀双掷，5A）***la-2（单/双行，2个单刀双掷，5A）
直流电压和电流的现场可配置输入范围
独有的“动态死区”防止虚***旅行
在一个预先设定的直流输入电平提供继电器触点闭合
可编程的高或低设定值
故障/闭锁操作
可选的120 / 240 VAC输入功率

产品描述
***LA-1 single setpoint and ***LA-2 dual setpoint limit alarms offer flexible, wide-ranging DC input capability. Voltage spans from 10 mV to 200V and current spans from 1 mA to 100 mA can be field configured. Bipolar inputs are also accepted. Both models offer configurable latching, failsafe and HI/LO operation. The ***LA-1 and ***LA-2 also include 0.25% to 50% adjustable deadbands and able 120/240 Vac input power.

Models ***LA-1 and ***LA-2 are equipped with a dual function diagnostic LED. The green center LED indicates line power and input signal status. Active line power is indicated by an illuminated LED. If the center LED is off, check line power and the wiring connection. If the input signal is above 100% full scale, the LED will flash at approximately 8 Hz. Below 0%, the flash rate is approximately 4 Hz.

The single setpoint ***LA-1 and the dual setpoint ***LA-2 provide the following relay outputs: ***LA-1 Single Trip (DPDT, 5A); ***LA-2 Single/Dual Trip (2 SPDT, 5A). Setpoints are top accessed multi-turn potentiometers.

The field configurable ***LA-1 and ***LA-2 limit alarm setpoints can be configured for HI, LO, latching or failsafe trip operation. Non-latching HI and LO setpoints h***e respective HI and LO deadbands. In a tripped condition, the setpoint is exceeded and the appropriate red LED will illuminate. The trip will reset only when the process falls below the HI deadband or rises above the LO deadband. To reset a latched setpoint the signal must be in the safe region and the line power turned off for at least 5 seconds. For proper deadband operation, a HI setpoint must always be set above a LO setpoint.

In failsafe operation, the relay is energized when the process is below the HI setpoint or above the LO setpoint (opposite for nonfailsafe). In the failsafe mode, the relays go to the tripped condition when the power fails.

The input must remain beyond the setpoint for 100 milliseconds, uninterrupted, to qualify as a valid trip condition. Likewise, the input must fall outside the deadband and remain there for 100 milliseconds to return the alarm to an untripped condition. This effectively results in a “dynamic deadband” - based on time - in addition to the normal deadband.

Specificati***
INPUT
Voltage Input (Unipolar or Bipolar):
Range: 10 mV, 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1V, 2V, 5V, 10V, 20V, 50V, 100V, 200V (dip-switch able)
Impedance: gt;100 kΩ
Overvoltage: 400V max
Current Input (Unipolar or Bipolar):
Range: 1 mA, 2 mA, 5 mA, 10 mA, 20 mA, 50 mA, 100 mA (dip-switch able)
Impedance: 20 Ω typical
Overcurrent: 200 mA max
Overvoltage: 60 Vdc
Common Mode (Input to Ground): 1000 Vdc max
LED Indicati***:
Input Range (Green):
gt;100% Input: 8 Hz flash
lt;0% Input: 4 Hz flash
Setpoint (Red):
Tripped: Solid red
Safe: Off
Limit Differential (Deadband):
gt;50 mV/5 mA: 0.25% to 50% of span
lt;50 mV/5 mA: 1% to 50% of span
Resp***e Time:
Dynamic Deadband: Relay status will change when proper setpoint/process condition exists uninterrupted
for 100 msec
Normal Mode (Analog Filtering): lt;250 msec, (10 to 90%)
Setpoint:
Effectivity: Setpoints are adjustable over 100% of the ed input span
Repeatability (C***tant Temp):
gt;50 mV/5 mA: 0.1% of full scale
lt;50 mV/5 mA: 0.2% of full scale
Stability:
Line Voltage: &plu***n;0.01%/% max
Temperature: &plu***n;0.05% of full scale/°C max
Common Mode Rejection: DC to 60 Hz: 120 dB
Isolation: 1000 Vdc between contacts, input and power
ESD Susceptibility: Meets IEC 801-2, Level 2 (4 KV)
Humidity:
Operating: 15 to 95 %RH @ 45°C (113°F)
Soak: 90 %RH for 24 hours @ 65°C (149°F)
Temperature Range:
Operating: 0 to 60°C (32 to 140°F)
Storage: -15 to 70°C (5 to 158°F)
Power: 120/240 Vac &plu***n; 10%, 50 to 60 Hz able, 2 W typical, 5 W max
Relay Contacts:
***LA-1: DPDT (2 Form C)
***LA-2: 1 SPDT (1 Form C) per setpoint
Current Rating (Resistive): 120 Vac: 5A; 240 Vac: 2A; 28 Vdc: 5A (external relay contact protection
is required for use with inductive loads)
Material: Silver-Cadmium Oxide
Electrical Life: 105 operati*** at rated load
Mechanical Life: 107 operati***
Latch Reset Time: 5 seconds
Weight:
***LA-1: 209 g (0.46 lb)
***LA-2: 282 g (0.62 lb)

产品编号 产品描述

***LA-1 Single setpoint DC input field configurable limit alarm

***LA-2 Dual setpoint DC input field configurable limit alarm

Accessories

SKT-DR-11P 11-pin socket, DIN rail mount

SKT-***-11P 11-pin socket, surface mount

***-RAIL-2 35 mm DIN rail, 2 m (6.6') length

***RS Retaining spring (secures limit alarm module into DIN rail or surface mount socket)
 

***LA-1信号调节器 美国omega
***LA-2信号调节器 美国omega
***LA-TC信号调节器 美国omega
 

***LA-2

***LA-2传感器-美国原装
　

***LA-2传感器-美国原装传感器美国Omega相关产品