HT78 Operating Instructions Version 1.
Table of contents Please add the titles and pages in English accordingly 1. Introduction Page x 2. Bedienelemente 2.1 LCD Anzeige 2.2 Tasten 3. Inbetriebnahme 4. Funk-Thermometer 5. Bedienung 5.1 Zeit 5.2 Thermometer mit Alarm 5.2.1 Ablesen der Temperatur von jedem Kanal 5.2.2 Min/Max Speicher 5.2.3 Messeinheit °C oder °F 5.2.4 Temperatur-Alarm 6. Batteriewechsel 7. Pflege des Gerätes 8. Support 9.
1. INTRODUCTION Many thanks for selecting the HT78 from IROX. In your hands, you hold a high-quality thermometer which we have equipped with additional functions that have above-average design and functionality in a market comparison. These include the measurement memory where in addition to the maximum and lowest values also the time and the date of the measurement per channel are recorded (the so-called ‘time stamp’).
2.2 KEYS View from front CHANNEL / + (press briefly) --> 1 --> 2 --> 3 --> 4 --> 5 --> - In normal operating mode: Changes from channel to channel ( - In the various setting modes: Increases the value to be set (hold pressed for fast run through) --> etc) MEMORY / - (press briefly) - In normal operating mode: Call-up of the data from the thermo memory (MAX --> MIN --> MAX --> etc.
3. PUTTING INTO OPERATION 1. Put all radio sensors that you want to use into operation and place these in close proximity (1-2 metres) to the reception device. 2. Open the battery compartment of the display device and remove all insulation strips. If no batteries are in the device, insert the 2 batteries (UM-3 or ‘AA’ 1.5 V) in the correct polarity. 3. Now close the battery compartment. 4. Directly after the activation of the batteries, all segments are displayed for a few seconds on the display.
Signal interruptions Each sensor is read by the device once a minute. If more than 8 readings are read one after the other without data, lines appear in the display for this channel and the HT78 then stops any other reception attempts after this for 8 hours. The display device starts a reception again by itself after approx. 8 hours. If the original sender is not found again, the device starts with a new search for a new sensor on this channel.
5.2 THERMOMETER WITH ALARM With regard to operation, the HT78 is in a 'sleep mode’ when no key is pressed for more than 2 minutes. This status is then recognised by the fact that on the left-hand side of the display neither the symbol nor the number in the channel display is flashing. In such a case, the operation is activated by pressing one of the 3 keys. The corresponding symbol then flashes in the field to be operated ( or ‘CH’ with corresponding number).
5.2.4 Temperature alarm The temperature alarm function is programmed individually per channel ( / CH1.... CH5). Each alarm is defined by an upper and lower limit. If this is exceeded or undercut, an acoustic and optical alarm is triggered. Important general information about the thermo alarm: - An alarm programmed on Channel 1 can only be triggered by the sensor 1. Each channel thus has its own alarm range. - The temperature alarm can be set in steps of 0.5 ° C (0.9° F).
6. CHANGE OF BATTERY : BATTERY CHANGE DISPLAY The batteries last for around 8-12 months. Depending on the usage of the appliance and the batteries used, this time can be slightly shorter or longer. In order to avoid a surprising and unpleasant interruption to operations, the battery symbol appears in the two temperature windows with the corresponding channel.
