GDS GASMAX II Quick Start Manual

Quickstart Guide
GASMAX II Gas Monitor with Remote
SmartIR Combustible Gas Sensor
INSTALLATION
IMPORTANT - Before installing the GASMAX II,
make sure no toxic or combustible gases are
present. Declassify the area if necessary.
Air movement by fans, wind, gas density,
convection, emission sources and environmental
variables should be taken into account when
determining location. As with all sensors, the
GASMAX II should be protected from falling or
directed water, snow, shock, vibration and dirt.
Use installation practices approved for the
appropriate area classification. When installed with
#10-0247 Stainless Steel sensor head, the
GASMAX II is certified for use in areas rated Class
1, Div 1, Groups B, C & D.
WIRING & INITIAL SETUP
Access the GASMAX II display assembly by
opening the explosion-proof cover and loosening
GASMAX II Power Supply Board
C2 C1
GASMAX I/O Power
Supply P/N 10-0233
1 2 3 4
TB2
C7
C8
Important:
Do NOT exceed 5.5V across remote sensor
terminals R & A with the sensor in place.
If moisture is present, do not install remote
sensor with unused inlet facing up.
AUTHORIZED DISTRIBUTOR - GasDetectorsUSA.com - Houston, Texas USA
TP1
A
R
"CATBEAD"
C
TB1
S1
sales@GasDetectorsUSA.com
the two thumbscrews. The power supply board is
attached to the rear of the enclosure.
Connect the GASMAX and remote sensor as shown
using shielded cable. Ground the shield on one end
only. Reinstall the GASMAX II display and cover.
Apply power and allow the instrument to warm up for a
minimum of one (1) hour. Readjust the sensor voltage to
4.5VDC as measured at the sensor junction box across
pins "R" and "A".
Perform a balance adjustment as described in the
GASMAX manual.
CALIBRATION
After warm-up, follow the on-screen instructions to
calibrate the unit. When calibration is complete, the
GASMAX II will indicate CAL DELAY and then resume
normal operation.
R
R
C
C
A
A
Remote SmartIR Sensor Assembly
- 832-615-3588
S1
TB2
TB1
R
C
A
SW1