Helmer Scientific i.Series
®
and Horizon Series
™
Freezer - Undercounter
Operation Manual
360376/C
7
Set up and Operation
Access the chart recorder by pulling the door open.
Install battery
Connect the leads to the battery to provide back-up power to the chart recorder.
Install / Replace Chart Paper
Note
For accurate temperature reading, ensure the current time is aligned with the time line groove when the chart knob
is fully tightened.
Chart recorder stylus and time line groove
1.
Press and hold C button. When stylus begins to move left, release button. The LED flashes.
2. When stylus stops moving, remove chart knob then move knob up and away from chart paper.
3. Place new chart paper on chart recorder.
4. Gently lift stylus and rotate paper so current time line corresponds to time line groove.
5. Hold chart paper in place while making sure the chart knob is fully tightened.
(Failure to fully tighten the knob can result in paper
slipping and losing time.)
6.
Confirm the temperature range is set to the correct value.
7. Press and hold
C
button. When the stylus begins to move right, release the button.
8.
Confirm the stylus is marking the temperature correctly.
Power Supply
The temperature chart recorder uses AC power when the system is operating. If AC power fails, the recorder continues to record
temperature with back-up power provided by the nine volt battery.
♦
The LED indicator glows green continually when main power is functioning and the battery is charged.
♦
The LED indicator glows red continually when main power is functioning and the batteries is either not installed or needs to be
replaced.
♦ The LED indicator flashes red to indicated the recorder is receiving power only from the back-up battery.
♦ The LED indicator flashes during chart paper change mode.
