HY-ALERTA™ 1600, Intrinsically Safe Area Hydrogen Monitor
OPERATING MANUAL
90000012 R8
Page 5 of 31
1
DESCRIPTION
The HY-ALERTA
TM
1600 Intrinsically Safe Area Hydrogen Monitor is designed to detect and/or measure
hydrogen as a component of air. The hydrogen specific solid-state sensing element is housed in a
flameproof enclosure at the tip of the sensor tube, and ATEX certified for Zone 0 hazardous locations. The
electronics assembly housed in a metal housing, which is permanently attached to the sensor tube, is
ATEX certified for Zone 1 hazardous locations. The electronics contains all the circuitry necessary to
operate the sensor and provides calibrated hydrogen readings to a 4-20 mA analog and RS422 digital
outputs. The HY-ALERTA
TM
1600 has no cross sensitivity to other combustible gases, eliminating false
positive alarms and ensuring safety system reliability.
2
SPECIFICATIONS
Sensitivity Range:
0.4% to 5% hydrogen by volume at 1 ATM,
10% to 125% hydrogen lower flammable limit
Accuracy:
± (0.03 x indi 0.2) percent hydrogen by volume
Example: accuracy at 1% H2 is ±0.23% H2
Response Time:
T90 of 60 sec maximum
Temperature:
Ambient Operating:
Storage:
-20 to +40°C
-40 to +50°C
Sensor Input Voltage:
Range:
Intrinsically Safe:
5 VDC to 28 VDC
10 VDC, 6 W
Power Barrier Input Voltage:
Range:
Nominal:
20 VDC to 28 VDC
24 VDC
Analog Output:
Isolated, Loop Powered 4-20 mA
Serial Communication:
RS-422
Dimensions:
See following figure (dimensions in inches)
Weight:
1 lbs.
Enclosure Rating:
At least IP20, capable of meeting IP64
Dust-tight, protected against water spray from any direction
Approvals and Ratings:
0359
ITS07ATEX25634X
II 1 G, Ex ia II H2, db+db IIB T3 Ga
II 2 G, Ex ib II H2, ib db IIB T3 Gb
Calibration Period:
3 months
Product Life:
10 years
