578856
8
Zoom out
Zoom in
Previous page
1/10
Next page
5.2.4 Temperature and humidity alarm
The alarm function is programmed individually per channel ( / CH1.... CH5). Each alarm is defined by an upper and lower
limit of the temperature and/or the rel. humidity. 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. . I.e. 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. one measurement is available at this point. With simple
thermo sensors you may set an alarm for the hygrometer, but this value will have no function. By all means, leave it active –
should you deactivate the hygro alarm, you will also deactivate the thermo alarm !
Should e.g. no sensor be available on Channel 4 or 5, lines appear there instead of a temperature and rel. humidity and the
programming as described above cannot be done.
Activation/deactivation of the temperature/humidity alarm
1. Press the CHANNEL key until the desired channel display ( / CH1.... CH5) flashes.
2. Press and now hold the °ALARM key for approx. 3 seconds until HI--.-°C appears in the display.
3. You can now switch on the alarm with the SET key. When set for the first time, HI 30.0 °C (HI 86.0°F) will appear with a
symbol
. The number in the triangle refers to the channel for which the alarm is active. Another pressing of the SET key
switches the alarm off again. Continue to the lower limit (LO) with the °ALARM key. An operation must be done within
approx. 6 seconds otherwise the appliance automatically jumps back into the normal display.
4. If you want to change the value, please now hold the SET key pressed for at least 3 seconds until the alarm limit starts to
flash. With the + and keys you can now change the limit in steps of 0.5° C (0.9°F) upwards or downwards. Continue to
the setting of the LO limit (lower limit) as well as the HI and LO limits of the rel. humidity with the SET key. If you do not
press any key in this setting for more than 2 minutes, the appliance will automatically jump back into the normal display.
5. The setting of the lower limit of the temperature and the HI/LO limits of the rel. humidity is done in an analogous manner to
steps 3 and 4. The factory set thermo LO limit is 5° C (41° F), the hygro HI limit 70% and the hygro LO limit 35% .
6. After the hygro LO setting, you simply move with the next step back into the normal display.
Note 1: The HI limit can be set below the LO limit or the LO above the HI respectively. The logics of the alarm activation are
retained, namely:
- Triggering of the HI alarm when the limit is exceeded bottom-up.
Example: With an alarm of 38° C, the alarm is triggered when the measurement value jumps from 36.6° C to 38.2° C.
- Triggering of the LO alarm when the threshold is undercut top-down.
Example: With an alarm of 6° C, the alarm is activated when the measurement value of 7.2° jumps to 5.5° C.
Note 2: If you want an alarm, both HI and LO limits of the thermo and (!) hygro alarms need to be set. If you only want one of
these, simply set the limits you don’t need to the extreme
Thermo: HI = 70°C or 76.8° F / LO = -50° C or -58° F
Hygro: HI = 99% / LO = 1%
Note 3: You can programme independent alarms for each channel.
Acknowledgement of an alarm
If an alarm limit is exceeded, an acoustic alarm sounds out for approx. 2 minutes and the symbols belonging to the channel (
and the HI or LO display) flash.
During the 2 minutes of acoustic alarm, the measurement value remains on the measurement value that triggered the alarm.
You have to acknowledge the alarm with any key. Until you have done so, a short ‘beep-beep’ will sound out every minute once
the 2 minutes of acoustic alarm are over.
The current measurement value is displayed again on the display after the 2 minutes have ended or manual acknowledgement
has been given; however, the symbols flash for as long as the alarm is still ‘active’ in a slightly more sedate rhythm.
Please read the note on hysterisis at the beginning of this chapter.
8


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Irox HTG79 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Irox HTG79 in the language / languages: English as an attachment in your email.

The manual is 0,36 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Irox HTG79

Irox HTG79 User Manual - German - 10 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info