PureAire TX-KE, Инструкция по эксплуатации

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PureAire Monitoring Systems, Inc. 2/22/2000
2
1: Introduction
This instruction manual provides installation, operation, and maintenance
information on PureAire Monitoring System’s Model TX-KE and Model TX-KP
gas detection systems. These systems may be used as either stand-alone detection
systems, linked to dedicated controllers, or connected to facility-wide
surveillance systems. The main difference between the TX-KE and TX-KP are
the components used to make them suitable for use in hazardous areas.
1.1 Model TX-KE
1.1.1 General Information
The Model TX-KE is an intrinsically safe instrument designed to continuously
detect and measure absorptive gases such as HCl, HF, and HCHO. It is suitable
for use in Class I, Division 1, Group B, C, and D hazardous areas when used with
a safety barrier installed outside the hazardous area. Standard features include:
•
Intrinsically safe
•
Digital or analog concentration display
•
Rapid response
• One man, non-intrusive remote calibration
•
Ideal for absorptive gases
•
Plug-in diffusion-type sensor cell
1.1.2 Component Identification
CN1
CN3
1 2 3 4
C
M
A
+
Common
MA
+
TX-KE
Bionics Instrument Co., Ltd.
GAS DETECTOR
0
S
2
4
3
5
6
8
7
1
1. Concentration Display — A local analog or digital readout which displays
the measured concentration of the target gas.
2. Zero Potentiometer — This potentiometer is used to adjust the instrument’s
4 mA analog output signal to ensure that it is transmitting a 4 mA signal
when the instrument is reading a zero gas concentration.
Note: Depending on
the gas sensor a clockwise or counterclockwise rotation increases the value; a
counterclockwise or clockwise rotation decreases the value.