GE Kelman MULTITRANS - POWER; 5.2 Cold Start

MA-003 – MULTITRANS User Guide – Rev 3.0 18-Jan-16 Page 10 of 30
5 POWER
5.1 Introduction
The product is powered up by pressing the Power switch located inside the product
towards the bottom right-hand side (see Figure 5—1). The mains fuse holder for the
product is shown in Figure 5—2.
Figure 5—1: Power switch
Figure 5—2: LED indicator lights & fuse holder
The product uses four external sunlight-visible LEDs on the front door. Each LED has two
states – ‘Off’ (-) or ‘On’ as outlined in Table 5—1.
Table 5—1: External LED status indicators
Mode
Alarm (red) LED
Caution (yellow) LED
Power (green) LED
Service (blue) LED
Power Off
-
-
-
-
Normal
-
-
On
-
Alarm
On
-
On
-
Caution
-
On
On
-
Service
-
-
On
On
5.2 Cold Start
If the product is powered up in cold conditions (less than −10 °C), the product initiates the
following cold-start sequence before a measurement can commence. The internal heater
in zone 1 automatically switches on to increase the internal temperature to within the
PGA operational temperature range. The system does not fully power up until the
working temperature in zone 1 reaches −10 °C, after which the system becomes
operational. Lights for the system power supplies are situated on the circuit board at the
rear as shown in Figure 5—2.
Note: Once the DC power supply resumes, the internal temperature of the product may take several
hours to reach working temperature before a measurement cycle commences.
24 V DC
LED
12 V DC
LED
Fuse holders for
mains input power