Helmer iPR456 - Page 10

Helmer Scientic i.Series
®
and Horizon Series
™
Pass-Thru Refrigerator Operation Manual
360378/C 9
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ashes.
2. When stylus stops moving, remove chart knob then move knob up and away.
3. Place 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. Press and hold C button. When stylus begins to move right, release button.
7. Conrmstylusismarkingonpaperandstopsatthecorrecttemperature.
8. Calibrate chart recorder to match primary temperature if needed and close recorder door.
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 battery is either not installed or needs to be
changed.
♦ TheLEDindicatorashesredtoindicatethattherecorderisreceivingpoweronlyfromtheback-upbattery.
♦ TheLEDindicatorashesduringchartpaperchangemode.