Spectrex Series 200 Open-Path Gas Detection System User Manual

Page 24

Advertising
background image

Spectrex Inc. - SafEye

TM

200 Gas Detector Manual – TM 792100, Rev. D, May 2004

16

3.9 System Setup

3.9.1 Detector Setting

The detector consists of the following DIPswitches, which enable the user to
adapt the detector operation to specific application:

SW1

Function Selection Switch. Contains. 8 DIPswitches. Used for Calibration
of different gas selection, response time control and Relays response
configuration (see table 7)

SW2

Address Selection Switch. Contains 8 DIPswitches. Used for Detector’s
address setting and 4-20mA output configuration setting (see table 10)

SW3

Alarm Options Selection Switch. Contains 4 DIPswitches. Used for
Detector’s Alarm Latching configuration and 4 -20mA level reading
configuration (see table 11)

Function Selection Switch:

Table 7 describes SW1 DIPswitches position and the required function for setting
the detector according to the necessary configuration

Table 7. SW1 DIPswitches Configuration

Switch

No.

Off position

On position

Default

setting

1

Detection speed control bit
0 at “0” (see note 1 below)

Detection speed control bit 0
at “1” (see note 1 below)

on

2

Detection speed control bit
1 at “0” (see note 1 below)

Detection speed control bit 1
at “1” (see note 1 below)

off

3

Gas type control bit 0 at “0”
(see note 2 below)

Gas type control bit 0 at “1”
(see note 2 below)

on

4

Gas type control bit 1 at “0”
(see note 2 below)

Gas type control bit 1 at “1”
(see note 2 below)

off

5

Full scale sensitivity is 0-5
LEL.m

Full scale sensitivity is 0-2
LEL.m

off

6

Zero calibration is
performed according to
background

Gas level detection
performed without
background Zero calibration

off

7

Accessory Relay is
activated at Warning level

Accessory Relay is activated
at Alarm level (with the
Alarm Relay)

off

8

Accessory Relay is
activated according to SW1-
7 position

Accessory Relay is Activated
at Power on continuously
(used as End of Line)

off

Advertising