Utangulizi
This manual provides detailed instructions for the operation and maintenance of the Traceable Four-Channel Alarm Timer, Model 90225-35. This device is designed for laboratory use, offering precise timing capabilities across four independent channels for various applications.
Vipengele
- Calibrated Four-Channel Alarm Timer for Laboratory Use
- Memory returns display to previously programmed countdown time with touch of a button
- Extra-loud alarms sound for 1 minute
- Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
Sanidi
Ufungaji wa Betri
The timer operates on standard batteries. To install or replace batteries:
- Tafuta sehemu ya betri nyuma ya kitengo.
- Fungua kifuniko cha compartment.
- Insert new batteries, observing the correct polarity (+/-) as indicated inside the compartment.
- Funga kifuniko cha sehemu ya betri kwa usalama.

Picha: Nyuma view of the Traceable Four-Channel Alarm Timer, highlighting the circular battery compartment cover on the right side.
Nguvu ya Awali Imewashwa
Upon first power-on or after battery replacement, the display will show the current time or default to 0:00:00. The timer is now ready for operation.
Maagizo ya Uendeshaji
Zaidiview ya Vidhibiti

Picha: Mbele view of the timer, displaying the LCD screen and all control buttons. Buttons include T1, T2, T3, T4, CLOCK at the top, and H, M, S, C, START STOP at the bottom.
The timer features several buttons for various functions:
- T1, T2, T3, T4: Selects the desired timer channel.
- SAA: Toggles between clock display and timer display, and used for setting the clock.
- H (Hours): Sets hours for countdown/count-up.
- M (Minutes): Sets minutes for countdown/count-up.
- S (Seconds): Sets seconds for countdown/count-up.
- C (Clear): Clears the set time for the selected channel.
- ANZA / ACHA: Starts or stops the selected timer.

Image: Close-up of the 'H' (Hours) and 'M' (Minutes) buttons, which are used for setting time values.

Image: Close-up of the 'START STOP' button, used to initiate or pause timing functions.

Image: Close-up of the 'CLOCK' button, used for setting and viewkwa wakati wa sasa.
Setting a Countdown Timer
- Press one of the channel buttons (T1, T2, T3, or T4) to select the desired timer. The display will show the selected channel indicator.
- Bonyeza kwa H, M, na S buttons to set the desired countdown time. Each press increments the value. Hold the button for rapid increment.
- Bonyeza kwa ANZA/ACHA kitufe cha kuanza kuhesabu.
- When the countdown reaches zero, an extra-loud alarm will sound for 1 minute.
- Ili kuzima kengele, bonyeza kitufe chochote.
- To recall the previously programmed countdown time for a channel, press the corresponding channel button (T1-T4) after the timer has stopped.
Using as a Count-Up Timer (Stopwatch)
- Press one of the channel buttons (T1, T2, T3, or T4) to select the desired timer.
- Ensure the selected channel is cleared (display shows 0:00:00). If not, press the C kitufe.
- Bonyeza kwa ANZA/ACHA button to begin counting up.
- Bonyeza kwa ANZA/ACHA button again to pause the count-up.
- Bonyeza kwa C button to clear the count-up time.
Kuweka Saa
- Bonyeza na ushikilie SAA kitufe hadi onyesho la wakati lianze kuwaka.
- Tumia H, M, na S vifungo vya kuweka wakati wa sasa.
- Bonyeza kwa SAA button again to confirm and exit clock setting mode.
Matengenezo
Kusafisha
Futa kipima saa kwa laini, damp kitambaa. Usitumie cleaners abrasive au kuzamisha kitengo katika maji.
Ubadilishaji wa Betri
When the display dims or the alarm weakens, it is time to replace the batteries. Refer to the "Battery Installation" section under Setup for instructions.
Kutatua matatizo
Kipima muda hakijibu
- Angalia usakinishaji wa betri na uhakikishe kuwa betri ni mpya.
- Bonyeza kwa C button to clear any previous settings.
Alarm is too quiet or not sounding
- Badilisha betri.
- Ensure the timer is not in a location where the sound is muffled.
Display is blank or erratic
- Badilisha betri.
- If the issue persists after battery replacement, contact customer support.
Vipimo
| Kipengele | Maelezo |
|---|---|
| Nambari ya Mfano | 90225-35 |
| Chapa | INAWEZEKANA |
| Idadi ya Vituo | 4 |
| Vipimo vya Kifurushi | Inchi 4 x 3.5 x 1.2 |
| Uzito wa Kipengee | Wakia 0.009 (Gramu 0.26) |
| Rangi | Nyeusi |
| Mtengenezaji | Cole-Parmer |
| Kwanza Inapatikana | Januari 31, 2022 |
Udhamini na Msaada
This product comes with a NIST-Traceable certificate, ensuring its calibration accuracy. For specific warranty details or technical support, please refer to the documentation included with your purchase or contact Cole-Parmer customer service.
For additional information or support, please visit the manufacturer's webtovuti au wasiliana na idara yao ya huduma kwa wateja.





