16 \ USER OPERATION MANUAL:
FHD-400 Series
Cole-Parmer
®
coleparmer.com
IV . Operating Your Cabinet
4 .1 Control System
Control Panel
The controller displays the airflow and offers limited detection of low concentrations of hydrocarbon, some gases and
organic acids. Audio and visual alarms alert users to filter saturation and if the airflow reaches preset thresholds. An Hour
Counter with preset alarm intervals for pre-filter and main filter change out is also included.
Calibration Procedure
1 . Power up unit.
2
. To set nominal run point, press and hold the mute key for 4 seconds; when an audio beep is
observed, release the mute switch.
3 . Using a calibrated anemometer, set the airflow to the desired velocity.
4. Using the up and down arrows, set the display to read that reading.
5 . Press the mute switch once to store calibration point.
6
. To set an alarm point, press and hold the mute switch then press and hold the up arrow key for 4
seconds; after audio beep release both switches
.
7 . Set the display using the up and down arrows to the desired alarm point, in 0 .05 m/s increments.
8 . Press the mute switch once to store the alarm point.
9 . To display in FPM remove LK1, to display in m/s fit LK1.
CONNECTIONS
PL2
PL2 ANEMOMETER
PIN 1 RED
PL1 POWER
PIN 2 BLUE
PL3 VOLTFREE CONTACT
PIN 3 YELLOW
PL3 PINS 1 & 2 N/O
CLOSED ON ALARM
