Critical Environment Technologies GEM-II, Руководство по эксплуатации

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46 © 2014 All rights reserved. Data subject to change without notice.
GEM-II - Operation Manual Rev. E | 2014.10
Once the desired latching or non-latching function has been achieved, move jumper back to
position-1 on upper jumper bank J7 and move jumper back to position-1 on lower jumper bank
J6. At that point, all new settings will be written to the EEPROM.
7.10 leD Digital Display
The GEM system allows for a certain amount of customization of the LED digital display:
•
The display can be switched completely off.
• The display brightness level can be adjusted to low or high for best visibility in your
application.
• The display can indicate the gas type only with no numerical value for some applications.
FUNCTION JUMPER SETTING
Switch digital display “ON” Jumper “J3” bridge P2 & P3
Switch digital display “OFF” Jumper “J3” bridge P1 & P2
Low brightness level for display Jumper “J4” bridge P1 & P2
High brightness level for display Jumper “J4” bridge P2 & P3
Display only gas name (acronym) Jumper “J5” bridge P1 & P2
Display gas values as well as gas name Jumper “J5” bridge P2 & P3
NOTES:
1. The default setting for detectors leaving the CETCI factory with an LED digital display are:
I. Display is “ON”
II. Brightness level is “Low”
III. Display indicates gas type and gas value.
2. The typical operation of the LED digital display is: Gas name is shown for 1-second then gas
value is shown for 2-seconds. The sequence is the same for 1 or 2-channel systems.