Introduzione
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.
Features
- 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
Istituisci
Installazione di batterie
The timer operates on standard batteries. To install or replace batteries:
- Truvate u compartmentu di a batteria in u spinu di l'unità.
- Aprite a tappa di u compartimentu.
- Insert new batteries, observing the correct polarity (+/-) as indicated inside the compartment.
- Chiudere in modu sicuru u coperchiu di u compartimentu di a batteria.

Imagine: Daretu view of the Traceable Four-Channel Alarm Timer, highlighting the circular battery compartment cover on the right side.
Accensione iniziale
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.
Istruzzioni di funziunamentu
Overview di cuntrolli

Image: Front 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.
- CLOCK: 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.
- START / STOP: 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 viewin l'ora attuale.
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.
- Press u H, M, è S buttons to set the desired countdown time. Each press increments the value. Hold the button for rapid increment.
- Press u START/STOP buttone per inizià u contu à rebours.
- When the countdown reaches zero, an extra-loud alarm will sound for 1 minute.
- Per piantà l'alarma, appughjà ogni buttone.
- 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 buttone.
- Press u START/STOP buttone per cumincià à cuntà in avanti.
- Press u START/STOP button again to pause the count-up.
- Press u C button to clear the count-up time.
Stabbilimentu di u Clock
- Appughjà è tene premutu CLOCK buttone finu à chì l'indicatore di u tempu cumencia à lampeggià.
- Aduprà u H, M, è S i buttoni per stabilisce l'ora attuale.
- Press u CLOCK button again to confirm and exit clock setting mode.
Mantenimentu
Pulizia
Asciugà u timer cun un soffiu, damp pannu. Ùn aduprate micca detergenti abrasivi è ùn immergete micca l'unità in acqua.
Sustituzione di batterie
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.
Risoluzione di prublemi
Timer ùn risponde micca
- Verificate l'installazione di a batteria è assicuratevi chì e batterie sianu fresche.
- Press u C button to clear any previous settings.
Alarm is too quiet or not sounding
- Sustituite batterie.
- Ensure the timer is not in a location where the sound is muffled.
Display is blank or erratic
- Sustituite batterie.
- Sè u prublema persiste dopu à sustituzione di a batteria, cuntattate l'assistenza clienti.
Specificazioni
| Feature | Detail |
|---|---|
| Numero di mudellu | 90225-35 |
| Marca | TRACABLE |
| Numero di canali | 4 |
| Dimensioni di u pacchettu | 4 x 3.5 x 1.2 inch |
| Pesu di l'articulu | 0.009 once (0.26 grammi) |
| Culore | Neru |
| U fabricatore | Cole-Parmer |
| Prima Disponibile | 31 di ghjennaghju di u 2022 |
Garanzia è Supportu
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 websitu o cuntattate u so dipartimentu di serviziu di u cliente.





