Instruction manual

Rev June 3, 2004
3
For version 1.40 and higher HGM300 monitors –
 Prior to stepping through the functions listed for version 1.0 and 1.25 the HGM300 will complete a
solenoid valve check. So for V 1.40 you will hear each solenoid click before the lights sequence. The
valve check starts at zone 16 and works down to the purge solenoid. A four zone monitor there is a
ten seconds of silence before the valves start to click.
 All lights on the HGM300 go out.
 The Yellow light on the RDM800 will come on after a few moments (Time out error).
 Each light in succession (Green, Yellow and Red) will come on.
 The monitor will toggle each relay (Leak, Spill, Evacuate and Fault) in succession.
 A signal in both channels of the dual 4-20 mA loop will simultaneously be generated
(4 mA to 12 mA to 20 mA - Red light flashing).
 The Red light will flash during the 4-20mA test, then all lights will go out, and both the HGM300
and RDM800 will return to “power on” green only.
COMMON RDM800 INDICATIONS
Initial start up of the HGM300/RDM800 system
TIME OUT ERROR – The TIME OUT ERROR indicates that the RDM800 has not gained
communication with the HGM300. Check for proper RS-485 connections in both the HGM300 and
RDM800. Check for detent at each key on the RDM800. (If a key is stuck on the chassis this could lock
out all functions). Locate the stuck key or keys and slip the extension back into the cut out in the chassis.
CRC ERROR (Cyclical Redundancy Check)
This indicates that the data from the HGM300 was corrupted in some manner. Reset the HGM300 and
RDM800 to factory default settings and reset both clocks.