Specifications

Halogen Gas Monitor – Multi Zone
56 Instruction 3015-5074
Date Time Register Register 0x0015h 21dec R/W 14 bytes
Variable Type Length Description
Date_Time Time 14 bytes
Contains current time and date. Structure is defined as in
note 2 of zone data
Time Structure Format consists of 14 unsigned character types. They are 1 second digit, 10 second digit, 1
minute digit, 10 minute digit, 1 hour digit, 10 hour digit, a day digit, 10 day digit, 1 month digit, 10 month digit,
1 year digit, 10 year digit, day of the week, last byte is unused.
Sensor Data Register Register 0x0016h 22dec R 82 bytes
Variable Type Length Description
Pressure Float 4 Manifold Pressure is PSIA
P_Volts Float 4 Pressure sensor output Voltage
Vacuum_P Float 4 Pressure with all value closed and pump on in PSIA
Ambient_P Float 4 Absolute Ambient Pressure in PSIA
Box_T Float 4 Enclosure Temperature in Degrees C
Box_T_Volts Float 4 Box temp sensor output voltage
Bench_T Float 4 Optical bench temperature in Degrees C
Bench_T_Volts Float 4 Bench temp sensor output voltage
Bench_Z_T Float 4 Optical bench temp in degrees C at last zero interval
Box_Z_T Float 4 Box temp in degrees C at last zeroing
PkPk_int UI 2 Current peak to peak A/D counts from detector
PkPk Float 4 Current peak to peak voltage from detector
Ave_PkPk Float 4 Running average voltage from detector
Zero_PkPk Float 4 Voltage measured at last zeroing
Noise Float 4 Largest Change in running average
AU Float 4 Current absorbance value
Ave_AU Float 4 Running Average of absorbance level
Bench_PPM Float 4
PPM in bench based on zone gas selection (uncorrected
for pressure and temperature)
STP_PPM Float 4 PPM corrected to STP (1 atm, 25 deg C)
Bench_UML Float 4 Micromoles/liter in bench (uncorrected0
Ambient_UML Float 4 Micromoles/liter corrected to ambient pressure