Troubleshooting - Nufer Medical CERATHERM 600-3 Instruction Manual

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Instruction Manual CERATHERM 600-3
10.

Troubleshooting

The CERATHERM 600-3 controls are able to detect and report the following malfunctions:
1. Supply voltage interruption (mains failure)
2. Circuit breaker interruption (triac)
3. Circuit breaker short-circuit (triac)
4. Safety switch interruption (relay)
5. Safety switch short-circuit (relay)
6. Reduced voltage from 12 V supply voltage
7. Overtemperature in unit
If a mains failure occurs during operation (i.e. at heat level 1–4), an acoustic alarm is given.
The alarm LED also flashes at brief intervals. The alarm continues for roughly 15 minutes.
The buzzer can be silenced during the alarm by pressing alarm confirmation button [6]. The
alarm LED will continue to flash until the supply voltage returns or the energy storage unit is
empty (min. 15 min).
If power supply returns, the heater head restarts as follows:
Duration of mains failure less than 15 minutes:
Heater head is activated automatically and continues heating at the previous heat
level.
Duration of mains failure longer than 15–20 min.:
The heater head is in standby mode. The unit must be switched on again and the
desired heat level must be selected!
The alarm signal can only be given for the full 15 minutes if the heater
head was switched on roughly 3–5 minutes before the mains failure, to
allow the energy storage unit the charge fully.
14.171.C_GA_Ceratherm_600_3_EN.docx Nufer Medical AG / 04.07.2014 / DU Seite 22 / 32