Spectrex Series 200 Open-Path Gas Detection System User Manual
Page 25
Spectrex Inc. - SafEye
TM
200 Gas Detector Manual – TM 792100, Rev. D, May 2004
17
Notes:
1 Detection flash rate can be selected by pre-setting of SW1-1 and SW1-2
according to the following table. There are two bits, which provides four Flash
Source rates. Same Flash rate should also be set at the Flash Source.
Table 8. Flash Source Flash Rate Configuration
bit # 0 position
(SW1-1)
bit # 1 position
(SW1-2)
Source flash Rate
(flashes/second)
off
off
0.5
on
off
1
off
on
2
on
on
4
2 Four Gas types can be selected for maximum compatibility to Gas spectral
properties. The selection of the appropriate type is defined by pre-setting of
SW1-3 and SW1-4 according to the following table:
Table 9. Gas Type Calibration Setup
bit # 0 position
(SW1-3)
bit # 1 position
(SW1-4)
Detected Gas
Type
Gas type as
defined in
Section 2.3.6
off
off
Methane
Gas 1
on
off
Mixture
Gas 2
off
on
Propane
Gas 3
on
on
Mixture
Gas 4
Address Selection Switch
The Address selection Switch provides up to 64 different addresses for the
detector upon a network installation. Each detector can be recognized at its
specific address in RS485 network. The address should be determined by a pre-
setting of SW2-1 to SW2-6 switches.
Attention!
SW2-7 and SW2-8 should be always at on.