beautypg.com

Vaisala HMP228 User Manual

Page 37

background image

HMP228

M210282en-A

Operating Manual

31

T = D0 +R x {D1 + R x [D2 + R x (D3 + R x D4)]}

where

D0

=

-243.5673014

D1

=

2.278542701

D2

=

0.002050681

D3

=

-6.15025E-06

D4

=

1.34949E-08

4.7

Analogue output channels

4.7.1

Setting the analogue outputs

The HMP228 transmitters can be ordered with the required current or voltage
outputs already selected. If the outputs need to be changed, move the jumpers
in connector X15 into positions as shown in Figure 4.7.1.2.

24V

Sensor connections

Current loop or
RS485 module

Ch1 Ch2

+ -

nc

Tx

GND

Rx

-

- +

+

X55

Spare
jumpers

Figure 4.7.1.1

Spare jumpers