MA-001 – TRANSFIX-family Installation Manual – Rev 3.0
18-Jan-16
Page 28 of 55
Figure 9—3: Earth terminal on bottom of enclosure
Ensure that the selector switch for the heater supply voltage is set to the
correct supply voltage, either 110 V or 230 V as shown in Figure 9—4). The
switch is situated on the circuit board on the back wall of the enclosure.
Figure 9—4: Voltage selector switch
If heat trace is to be used, please refer to Appendix J.
9.2
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. See the relevant product user guide for more details.
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.
9.3
Battery
The product uses a non-rechargeable lithium coin cell battery (Panasonic CR2450
3 V 620 mAh) as shown in Figure 9—5. In the event that the battery needs to be replaced,
data from the product must be backed up. Failure to do so may result in historical data
loss.
Product casing
Two cable glands
(one in front and
one behind)
Switch
