Detcon TP-524D-HRT Bedienungsanleitung PDF herunterladen (Seite 12)

Model TP-524D-HRT

TP-524D-HRT Instruction Manual Rev. 0.3 Page 8 of 48

Drain

Conduit

"T"

EYS Seal Fitting

PGM 1

PGM 2

MODEL TP-524D

HOUSTON, TEXAS

FLT 1 2 CAL

MicroSafe H2S Gas Sensor

ALM ALM

Figure 7 Typical Installation

NOTE:

Any unused ports should be blocked with suitable ¾” male NPT plugs. Detcon

supplies one ¾” NPT male plug with each J-box enclosure. If connections are other than ¾”

NPT, use an appropriate male plug of like construction material.

2.6 Field Wiring

Detcon Model TP-524D-HRT solid-state H

S sensor assemblies require three conductor connections between

power supplies and host electronic controller’s 4-20mA / HART Interface. Wiring designations are DC+, DC-

, MA (sensor signal). A 250 ohm load resistor is needed on the 4-20 mA line when it is not being used. The

maximum wire length between sensor and 24VDC source is shown in the Table below. The maximum wire

size for termination in the Junction Box is 14 AWG.

Table 2 Wire Gauge vs. Distance

AWG Wire Dia. Meters Feet

Over-Current

Protection

22 0.723mm 700 2080 3A

20 0.812mm 1120 3350 5A

18 1.024mm 1750 5250 7A

16 1.291mm 2800 8400 10A

14 1.628mm 4480 13,440 20A

NOTE 1:

Wiring table is based on stranded tinned copper wire and is designed to serve as a

reference only.

NOTE 2:

Shielded cable is required for installations where cable trays or conduit runs include

high voltage lines or other possible sources of induced interference. Separate conduit runs are

highly recommended in these cases.

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Detcon TP-524D-HRT Bedienungsanleitung Seite 12