Flowserve TRV5-40 Manual do Utilizador descarregar pdf (Página 17)

Start

Apply supply voltage. All segments and decimal

points of the displays

MAX

and T are ﬂashing.

The LED displays are being tested.

Operation

Actual value T (°C) below limit

value T

MAX

(°C)

Display T

MAX

Indication of the adjusted limit

Display T Indication of the actual value

Actual value T (°C) above limit

value T

MAX

(°C)

Display T

MAX

Indication of the adjusted limit

Display T Indication of the actual value and triggering of

an alarm.

Control unit NRS 1-40.1 / NRS 1-40.2 opens the

output contacts after the time delay has elapsed.

Test

The pushbutton for the TRV

5-40 on the control unit NRS

1-40.1 / NRS 1-40.2 must be

pressed and held down until

the test is ﬁnished.

Display T An increase in temperature is simulated and

the indicated actual value rises steadily. When

the adjusted limit value is exceeded, the control

unit NRS 1-40.1 / NRS 1-40.2 opens the output

contacts after the time delay has elapsed.

Indication of an error code

When an error occurs Display T Display switches between indication of error

code (E xx) and actual value T. The control unit

NRS 1-40.1 / NRS 40.2 opens instantaneously

the output contacts and the output of terminal

7,8 is energised/de-energised in a time-

controlled manner.

Start, Operation and Test

TRV 5-40

Fig. 6

Indication of

limit value

Indication of

actual value / error code

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 27 28

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