Specifications

Ammonia Gas Monitor – Multi Zone
Instruction 3015-5113 51
System Data Register Register 0x0010hex 16dec R/W 54 bytes
Variable Type Length Description
Type UI 2 bytes
Indicates EEPPROM has been initialized if value = 300
DO NOT
MODIFY
REV Float 4 bytes
Firmware Rev Level
DO NOT MODIFY
SN UI 2 bytes
Firmware Serial Number
DO NOT MODIFY
Node UC 1 byte Network Slave Node # (valid values are 1-15). The default is that
indicated by the Node DIP Switch on main board.
Location C 13 bytes Array defining text name of unit
Stop_Bits C 1 byte Number of stop bits used in the AGM-MZ data stream. Default = 1.
Other available value is 2
Aud_Alarm UC 1 byte Sounds internal board buzzer on condition; 0 = no buzzer; 1= Alarm;
2=Fault; 3=Leak; 4=Spill; 5=Evacuate; 6=Monitor Off line (DEFAULT = 0)
Alarm_Ack_
Mode
UC 1 byte Defines Alarm Operation. Manual Acknowledge = 0; Auto Acknowledge
= 1 (DEFAULT = 0)
Num_Zones UC 1 byte Number of install zones (Value initialized during auto detect during
Power On Self Test).
UNUSED TIM 13 bytes UNUSED
Rezero_Mode UC 1 byte Defines rezero mode. Auto Rezero = 0; Rezero every zone = 1
(DEFAULT = 0)
Hold_Time UI 2 byte Length of zone hold interval in minutes (DEFAULT = 15 minutes)
Det_Limit UC 1 byte Minimum detection limit (in PPM). Concentrations less than or equal this
value will read as 0 PPM (DEFUALT = 0 PPM)
Avg_Size UC 1 byte
Size of running average used in computing PPM value.
DO NOT
MODIFY
.
Loop2_factor Float 4 bytes Defines PPM current loop output. (DEFAULT = 0.16mA/PPM)
Serv_Mode_TO UI 2 bytes Service Mode Timeout value (in minutes). (DEFAULT = 60 MINUTES)
RS485_BAUD UI 2 bytes BAUD RATE for RS-485 connection (between AGM-RD and AGM-MZ or
MODBUS master and AGM-MZ depending on the Network topology).
Default=9 (19.2K); other values are 8=9600, 7=4800
UNUSED UI 2 bytes UNUSED