User manual IROX HTG77

[. . . ] INTRODUCTION Many thanks for selecting the HTG77 from IROX. In your hands, you hold a high-quality thermo/hygrometer 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'). The max/min alarm that can be set for each of the 6 channels with the corresponding alarm status display and the individual scanning of the 5 radio sensors make it clearly structured and calculable to operate. [. . . ] whether disturbances or shields are to be found in the area of the sender/receiver or the distance between the two devices is too great. The search processes described above for a `lost' sensor do not have any influence on any other existing sensors that function without problems. Signal `collisions' Radio signals of other devices in their environment can cause disruptions or temporary interruptions in reception. This is not bad but could be annoying under certain circumstances. Such typical 'disruptive systems' are radio door bells, wireless security systems, tube screens (PC/TV), control systems, etc. In such cases, it can also be helpful to use another channel. 5. OPERATION 5. 1 TIME The time (hh:mm) and the date are depicted in the upper information window. -Time setting -----SET---- By pressing the CHANNEL/+ and MEMORY/- keys at the same time and holding them for approx. 3 seconds, it is possible to change to the time setting mode. The element to be set starts flashing in the display: With the + and - keys, you can now make a setting for as long as the element is flashing. You can now move from setting to setting with a single brief pressing of the SET key. The procedure of the settings is as follows: - Date setting (year ---> month ---> day) - Time format: 24 hours or 12 hours (AM/PM) display - Time setting (Hour ---> Minute) You cannot directly interrupt the setting process. You then therefore go through the entire selection of settings with the SET key until the time of day reappears again after the minutes setting with the flashing `:' In the time. The setting on the display appliance or the sensor is to be made independent of one another and only affects the display of the corresponding device. 5. 2. 4 Temperature and humidity alarm The alarm function is programmed individually per channel ( / CH1. . . . Each alarm is defined by an upper and lower limit of the temperature and/or the rel. If one of them is exceeded or undercut, an acoustic and optical alarm is triggered. Important general information about the thermo/hygro 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), the hygro alarm in steps of 1%. - So as not to trigger any permanent alarm with minor changes around the alarm limits, the alarm trigger has a hysterisis of 0. 5° C (0. 9° F), respectively 1% r. H. if an alarm has been triggered, the new measurement value must fall under the alarm value by at least 0. 5° (0. 9° F), respectively 1% r. H. , to switch off the active alarm automatically. Example: An HI alarm at 24° first has to be set to inactive when it reaches 23. 5° C again. This prevents the measurement around a certain point triggering an alarm permanently. - Only one alarm can be programmed if really only one sensor resp. [. . . ] 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. This means that batteries of the display appliance (in the IN window) or of a radio sender (in the CHx window) are becoming too weak and need to be replaced. To change the batteries, please note Chapter 3 (Putting into operation). [. . . ]