MTD 242687 Especificações descarregar pdf (Página 82)

NOTE

An ammeter may be connected in series for

amplifier calibration to verify position

indicating meter is giving accurate readings.

With the amplifier power supply on, move power

positioner shaft to zero position. Tune zero

adjustment (as labeled on amplifier cover) until

ammeter indicates 4 mA.

e. Move the power positioner to the opposite end of

its stroke and hme the span adjustment (as

labeled on amplifier cover) for a reading of

20 mA.

f. Replace two plug buttons (1, Figure B-2) in EPT

case.

g. Install power positioner cover and secure with

screws removed at disassembly

POSITION -

INDICATOR

(4-20

AMMETER)

2 BLACK (-)

WHITE (+)

ITEM DESCRIPTION

1 Button Plugs

5 Lock Washer

2 Amplifier Cable

6 Terminal Marker

3 Terminal Block

I Terminal Cover

4 Pan Head Screw

8 Pan Head Screw

Figure B-2. EPT Wiring Installation

IB-102-208

B-2

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 88

Sem comentários

MTD 242687 Especificações Página 82