AS-3100 Combustible gas alarm controller

Product features

★Standard DC (4 ~ 20) mA signal input，versatility;

★Wall-mounted installation is simple and easy to operate;

★Industrial use of the LCD screen, all Chinese display interface having a cylindrical concentration;

★Black box function, storing 1000 data;

★The CPU adopts high-grade single-chip microcomputer, which has fast running speed and high precision;

★With RS485 communication interface and DC4~20ma output function;

★Zero and calibration of its displayed values;

★With fault alarm output contact, low limit alarm output contact, high limit alarm output contact and sound and light alarm output contact four sets of output contacts.

Technical Parameters

♦Installation method：Wall-mounted

♦Display mode：LCD

♦Measuring range:0～100%LEL，0～1000×10^-6（Full range adjustable），0～35%VOL（Full range adjustable）

♦Display accuracy：≤±1%F.S

♦Alarm mode：Sound and light alarm

♦Control quantity:1 detector

♦Receiving signal：DC（4～20）mA current signal

♦Fault signal：≤2mA

♦Alarm settings： Low limit alarm ：adjustable（the factory default 25% of full scale）   High limit alarm ：adjustable（the factory default 50% of full scale）

♦ Output Voltage：DC 24V±10%

♦Record alarm information：Can store 1000 pieces of information，the oldest record automatically cleared after 1000

♦Communication interface：RS-485

♦Operating voltage：Automatic switching of mains and backup power (backup power is optional)

Main power：AC 187V～242V   

Backup power：1.3AH/12V、1 knot

♦Power consumption:＜3W

♦Output control：With low and high concentration alarm output contacts, sound and light alarm output contacts and fault alarm output contacts（Capacity:3A/220VAC、3A/30V）

♦Transmission distance：1.5km（Loop resistance＜20Ω）

♦Ambient Temperature：（0～+40）℃

♦Relative Humidity：（10～95） %RH   

♦Pressure Range：（86～106） kPa

Shape and installation dimensions

Terminal block description