Thermon TraceNet TCM 18 Bedienungsanleitung PDF herunterladen (Seite 83)

Circuit Number 2 7 9 12 16

RTD Sensor Mode 1 AMB 1 AMB 2 AMB 1 AMB 2 AMB

RTD#1 Input −10 OPEN −14 OPEN −8

RTD#2 Input XX XX −12 XX OPEN

RTD#1 Reading Used a-10 −10 −14 −10 −8

RTD#2 Reading Used XX XX a-12 XX −12

Note: XX is an ignored RTD Input due to 1 AMB Mode

Note that Circuit 2 RTD#1 is reading an ambient -10, so the TCM18 uses this RTD

as the main RTD control sensor (SysAmbient1). Since this input is SysAmbient1 an

‘a’ is prepended to the reading displayed. The Circuit 2 RTD#2 is not installed so

this sensor location is ignored. Note also that on Circuit 9 both RTD#1 and RTD#2

are programmed as ambient sensed and are reading -14 and -12 respectively, so

the backup second RTD (SysAmbient2) will be RTD#2 from Circuit 9. Since this

input is SysAmbient2 an ‘a’ is prepended to the reading displayed.

Because Circuit 2 has an RTD reading within the stipulated valid range, it will con-

trol off its own RTD#1 sensor. Also Circuit 7 will control off the main RTD sensor

(SysAmbient1) since its own RTD#1 input is reading as OPEN (no sensor present).

Circuit 9 will control off its own RTD#1 and RTD#2 inputs because both are valid RTD

ambient readings. Circuit 12 will control off the main ambient RTD sensor (SysAmbi-

ent1) since its own RTD#1 sensor has an OPEN reading (no sensor present). Circuit

16 will control off its own RTD#1 sensor and the backup RTD sensor (SysAmbient2)

since its own RTD#2 sensor has an OPEN reading (sensor not present).

In this arrangement, all other circuits were programmed as pipe sensing RTD sen-

sors and thus each of those circuits ignore the ambient sensing RTD readings and

use the sensors present for those circuits.

79 PN 50316_0514

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Thermon TraceNet TCM 18 Bedienungsanleitung Seite 83