AMC SIR Series 사용 설명서 - 페이지 11

{카테고리_이름} AMC SIR Series에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. AMC SIR Series 18 페이지. Refrigerant gas sensor/transmitter

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AMC-SIR Refrigerant Gas Sensor/Transmitter

TRANSMITTER HOUSING REMOVED FOR CLARITY

TB1

TRANSMITTER

LED1

POWER

NOTE:

ALL WIRING MUST PASS THROUGH CONDUIT OPENING

LOCATED AT THE BOTTOM OF ENCLOSURE.

REFER TO FIGURE 4-1

4.2.1.3 TRANSMITTER CURRENT OUTPUT

When using a non AMC monitor, AMC-SIR Refrigerant Gas sensor/transmitter is connected as

shown in Fig. 4-5. If necessary, the output current may be converted to a linear voltage signal in

order to measure the signal. To accomplish this, a high-precision resistor must be connected to

the current input of the non AMC monitor as a shunt. See Fig. 4-6.

The resultant voltage drop across the resistor then linearly reflects the concentration value of

the measured gas. Depending on the operating current setting, the following values for the

output voltage can be established:



4-20mA

0.4V – 2.0V with a 100 Ω load resistor



4-20mA

1.0V – 5.0V with a 250 Ω load resistor



4-20mA

2.0V – 10.0V with a 500 Ω load resistor

TP1

V+

TP2

SIG

TO MONITOR

TP3

GND

Figure 4-4 Transmitter to Monitor Wiring Diagram

TB2

CHG

RS-

SHIELD

RS+

V+

SigV

Ret

GND

AMC

MONITOR

CHASSIS GND