Operation; Adjusting The Temperature Limit - Samson EB 2090 Mounting And Operation Instructions

7 Operation

Immediately after completing start-up or
placing the regulator back into service (see
the 'Start-up' section), the regulator is ready
for use.
WARNING
!
Risk of burn injuries due to hot or cold com-
ponents and pipeline.
Regulator components and the pipeline may
become very hot or cold. Risk of burn inju-
ries.
Î Allow components and pipelines to cool
down or warm up to the ambient tem-
perature.
Î Wear protective clothing and safety
gloves.
WARNING
!
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation or flashing)
may occur during operation caused by the
process medium and the operating condi-
tions.
EB 2090 EN
Î Wear hearing protection when working
near the valve. Follow the instructions
given by the plant operator.
7.1 Adjusting the temperature
limit
Note
The safety temperature monitor is adjusted
either to a temperature limit of T
(limit range –30 to +10 °C) or T
(limit range –45 to –10 °C). Other tempera-
ture limits are possible and must be specified
in the order.
Adjusting the required limit
6. Unscrew the cap (3.1).
7. Undo the lock nut (3.2).
8. Use an open-end wrench (size 14) to
turn the limit adjuster (3).
Use the adjustment diagram as a guide
to adjust the selected limit (see Fig. 7-1).
Î Turn the limit adjuster clockwise () to
increase the temperature limit.
Î Turn the limit adjuster counterclockwise
() to reduce the temperature limit.
The thermometer installed on site allows the
adjusted temperature to be monitored.
Operation
= –10 °C
limit
= –37 °C
limit
7-1