Temperature recorder and printer
9
Power Supply
The VLTS device is powered from 10-30V ac/dc 2Amp power source, 9V backup battery in case of
main voltage drop and a CR2032 clock battery for the clock and settings. All batteries are
replaceable.
Power Sources
The VLTS is powered at the main power input from a 10-30V ac/dc 2Amp power source. When
the VLTS uses the main power source, the POWER green LED is turned on.
At an external voltage below 10V, or at ambient temperatures above 65ºC, the VLTS will switch
to backup mode on a 9V battery (if installed), 9V lithium 1200mA is recommended.
In backup mode, the VLTS displays and stores readings in the memory and does not print. The
POWER indicator LED will flash slowly. The display lighting and buttons will turn off. The buzzer
cannot be turned off in an alarm event.
When voltage return above 10V and the ambient temperature is below 65ºC, the POWER light
will remain lit. If the printer was previously active, it will automatically complete the report of
the readings that were stored in the memory and were not printed when the VLTS switched to
backup mode.
Installing and Replacing the Batteries
The VLTS uses two batteries, as follows:
▲
CR CR2032 lithium battery
–
for saving the settings and the clock. It is located at the
back of the device. When the LOW BATT light flashes, replace it to a new one, and check
and update the settings.
▲
9V backup battery
–
1200mAh. It is recommended to replace it after every power outage
(battery not included). Used for backup for about 48 hours during a power outage. When
the LOW BATT light is on continuously, replace it with a new 9V battery.
To install or replace the batteries:
1.
Press the battery cover and pull out, as shown in Image 6.
2.
Install the batteries as indicated, paying attention to the polarity marks (-/+) and
place the cover.
Image 6: Installing or replacing batteries
-
+
CR2032
3V clock
battery
V9 backup battery housing.
1200mAh recommended
(Battery not included)