SCP SCIENCE DigiPREP HP, Руководство по обслуживанию

Страница: 8 / 49

KeyPad service manual
Rev.1.1 8
1.3 Symptoms
The following symptoms must be verified before going into more detail (see
figure 1).
1. The block is over shooting the set point temperature, and the temperature
keeps climbing.

Check the SSR Relay section 3.1.5
2. The block is not heating

Ensure the Digi SET Dongle is installed.

The power cable is connected correctly.

Ensure the Voltage Selector Switch is at the appropriate voltage.

Verify that the 180
o
C NC Thermal Switch is closed (see block service
manual)

Check resistance of heater (115 v
– 65 ohms or 230v – 32 ohms)
3. The block is heating very slowly

Ensure that the voltage selector switch is at the correct position (see
section 8).

Ensure the correct system is chosen on the utilities menu
4. No display but back light is lit

Ensure the Voltage Selector Switch is at the appropriate voltage.
5. No display and no back light

Check fuse F1.
Symptoms Reference
Operation LED not illuminated (blue) when power is on Section 2.1
Section 7.2
Digital Screen Backlight is not working Section 2.2
Section 7.3
Digital Screen (LCD) is malfunctioning Section 2.3
Section 7.3
LCD shows “DigiPROBE error”
Section 6.1
Section 8.5.1
Keypad buttons are not functioning correctly
Section 3
The controller is not functioning when power switch is on Section 4.1
The DigiPREP block is not heating up Section 5
The heating block is not reaching its temperature or vary Section 6
A long and clear sound is heard when controller is powered up Section 7.1
Figure 1: Symptoms vs. document references