Critical Environment Technologies GEM-II, Руководство по эксплуатации

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40 © 2014 All rights reserved. Data subject to change without notice.
GEM-II - Operation Manual Rev. E | 2014.10
Reference table in Section 7.5 Jumpers . If the GEM has been equipped with an LED digital
display, set values according to what is displayed. If the GEM has been supplied without a digital
display, you will require a digital multi-meter.
Attach the meter leads to the two test points (TP-1 & TP-2) located just below the high alarm
relay (RL V2) on the main circuit board (reference photo below). Set the meter to volts DC with
one decimal point. Time delays are set using a voltage reference of 0-4 VDC. Reference the tables
in Section
7.7 Time Delays for Relay Operations .
Move the jumper on the lower jumper bank J6 from its resting position (P-1) and place it on
the appropriate jumper position as indicated in the table below top achieve the desired alarm
setting. Use the “UP” or “DOWN” push-buttons to set the desired alarm value. Once all alarm
settings have been set to desired values, move the jumper back to its resting position on the
lower jumper bank J6. All new values will be written to the EEPROM.
Test Points: TP-1 & TP-2
FUNCTION DESIRED
J6 LOWER JUMPER BANK J7 UPPER
JUMPER
BANK
Int Ext
SET LOW ASCENDING ALARM VALUE P2 P3 P5
SET HIGH ASCENDING ALARM VALUE P2 P3 P6
SET LOW DESCENDING ALARM VALUE P2 P3 P7
SET HIGH DESCENDING ALARM VALUE P2 P3 P8