Bennett HIGH FLOW H35, Instruction Manual, Page: 16 / 98

Product Introduction
Bennett HF H35 Instruction Manual 12
EX12VDC BATTERY (LOCATED INSIDE ELECTRICAL CABINET)
An ex12 VDC lead acid backup battery is used to recall data during power outage or when
pump power is off. When the main power is on the battery, the charging circuit pr13.8 VDC
to charge the batt
ery. When the battery is “on” the battery supplies 12.6 VDC for the system.
Note: Prior to powering up the dispenser the battery must be connected.
Figure 1.9 - Ex12VDC
Battery
POWER SWITCH & BATTERY KILL BUTTON (LOCATED INSIDE ELECTRICAL CABINET)
DANGER: INCOMING AC POWER AT TS2 WILL REMAIN ACTIVE IF THE MAIN CIRCUIT BREAKER(S) ARE NOT TURNED OFF.
WARNING: To prevent electric shock, make sure the current is off at the circuit breaker(s) and the breaker is locked out
before doing any repairs or maintenance to the dispenser.
The Power Switch is located on the power supply board, which is accessed on side 1 of the
dispenser, behind the electronic door. When the switch is in the off position, main power is
removed from the electronic circuit boards. Service can be performed only on the circuit boards
with the switch in the off position and the battery disconnected. To totally disconnect power
from the dispenser, turn off the main breakers.
NOTE: When the power switch is turned off, the displays in the dispenser remain
illuminated for 30 seconds with power from the 12-volt battery. To turn off the
battery power press the battery disconnect switch.
A Battery Kill push button is used to kill the battery backup if necessary. This button can be used
to override the 30-second battery if primary power is lost at the dispenser, or if incoming power
drops below 74 volts AC. This button stays in the up position by a spring. To “kill” power to the
dispenser press down quickly and release. Once the switch is closed, and the display goes blank,
release the switch.
Figure 1.10 – Power & Battery Switch
SAFETY CONTROLS
Below is a summary of the safety controls for detection and prevention of the formation of explosive atmospheres.
EXTERNAL GAS DETECTOR (NOT SHOWN)
DANGER: FAILURE TO FOLLOW OEM INSTALLATION INSTRUCTIONS AND MAINTENANCE COULD RESULT IN A FIRE, OR AN
EXPLOSION THAT COULD CAUSE DEATH, PERSONAL INJURY, AND DAMAGE OF PROPERTY.
WARNING: IMPROPER MAINTENANCE CAN CAUSE INJURY OR DAMAGE EQUIPMENT THAT CAN AFFECT BENNETT PACIFIC
SERIES HYDROGEN DISPENSER PERFORMANCE.
CAUTION: Perform all preventative and schedule maintenance checks as recommended by the original manufacturer for all
NON-Bennett components.
IMPORTANT: The Dräger Polytron 8200 Instruction Manual for Use, Maintenance, and Safety procedures must be
incorporated into the site’s maintenance and safety procedures. Refer to the original manufacturer’s documentation for
specified information. Note: Site documentation should be updated as changes arise (i.e. Regular replacement of sensor).
The Bennett Hydrogen Dispenser utilizes a gas detection system that is used to detect flammable gas, toxic gas, and oxygen. Emergency
Stop System will be activated if the level goes over 50%. Please refer to the
Dräger Polytron 8200 Instruction Manual located on your
dispenser USB for fault settings, messages, and detailed information.