GWA 2000单通道气体报警器

添加时间：2009-10-29 编辑：读取中…… 阅读：次

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产品名称：GWA 2000单通道气体报警器
产品定货号：MR-00803-00

产地：德国
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The single-channel gas warning unit GWA 2000 continuously monitors the ambient air and provides an early warning of hazardous, explosive and non-combustible gases and vapours.

6-section keybord and illuminated 4-line LC-Display for indicating actual values, half-hourly average values and fault messages, all clear text encoded

Ready, fault and gas warning display

Menu-assisted settings for the equipment parameters, via 6-section keyboard

Two alarm thresholds for each sensor, independently adjustable from 5 to 100% of the measurement range; facility for forming half-hourly average value

A maximum of 12 floating alarm outputs for controlling extra warning and control devices

Floating change-over contacts for fault, siren and warning banners

Serial interface output RS 232 for connecting a printer or PC

4–20 mA current interface

Plastic, wall-mounted housing (IP 54)

High operational reliability

Low current consumption

Easy installation

USP unit available

Sensors:	- Infrared sensor - Semiconductor sensor - Heat reaction sensor - Thermal conductivity sensor - Chemical sensor
Ranges:	CO 0 - 300 ppm NO2 0 - 30 ppm CH4 0 - 100 % LEL CO2 0 - 10 Vol % further ranges on request
Accuracy:	< 3 % f.s.d.
Ambient temperature:	+14 °F to +113 °F
Temperature effects:	< 3 % for ± 20 °C variation
Setting time (t90):	< 60 s
Installation:	Wall-mounting
Protection type:	IP 54
Output signal:	RS 232 interface 3 Alarm relays 1 Fault relay Analog output 4(0) - 20 mA
Relay rating:	230 V, 450 VA other voltages on request
Voltage supply:	115 V, 60 Hz 230 V, 50 Hz (optional) 24 V / DC (optional)
Consumption:	14 VA
Dimension (WxHxD):	7.9 x 6.3 x 3.54 inch
Weight:	approx. 3.52 lbs