HT Omega DP3409 Manual

A SERVICE OF

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36

…5 INSTALLATION

Fig. 5.6 Electrical Connections

–

+

T/C

millivolts

and volts

RTD –

3

rd

lead

RTD

+

3-lead

RTD

–

+

Milliamps

1

2

3

4

–

+

* Milliamps

2-wire

transmitter

RTD –

RTD –

RTD +

2-lead RTD

and resistance

**100Ω

* Using internal transmitter power supply

** Use 100Ω shunt resistor provided with instrument

**100Ω

Tx

Analog

Output ✝

85 to 265V a.c.

C

Relay

Output 1

123456789101112

13

14

15

16

17

18

19

20

21

22 23

24

–

+

–

N/C

CN/O

Relay

Output 2

N/C

C

N/O

Digital

Input

+

–

RS485

TX

RS485

RX

+

RS485

or

Relay Output 3

N/C

C

N/O

+

+

–

–

Analog Input

(see below)

RTD1

Transmitter PSU

+

+

Logic Output

(18V at 20mA max.)

–

Not

Used

✝ 750Ω max. load

24V d.c.

+

–

L

N

1A

Note 1. The Analog Output and Logic Output use a common positive

terminal, capable of driving both outputs simultaneously.

Note 2. Fit arc suppression components if switching inductive loads.

1

2