Eurotherm 3116 PID Betriebsanweisung PDF herunterladen (Seite 9)

ENG

3116 User Guide Part No. HA028005ENG Issue 2.0 May 04

3.2 Wire Sizes

The screw terminals accept wire sizes from 0.5 to 1.5 mm (16 to 22AWG). Hinged covers prevent hands or metal making

accidental contact with live wires. The rear terminal screws should be tightened to 0.4Nm (3.5lb in).

3.3 PV Input (Measuring Input)

1. Do not run input wires together with power cables

2. When shielded cable is used, it should be grounded at one point only

Any external components (such as zener barriers, etc) connected between sensor and input terminals may cause errors in

measurement due to excessive and/or un-balanced line resistance or possible leakage currents

3.3.1 Thermocouple Input

For thermocouple input use the correct compensating cable preferably shielded

3.3.2 RTD Input

The resistance of the three wires must be the same. The line resistance may cause errors if it is greater than 22Ω

3.3.3 Linear Input (mA or V)

A line resistance for voltage inputs may cause measurement errors

For volts input an external module is required. Input resistance 100KΩ.

For mA input

connect burden resistor of 2.49Ω across the + and - input as shown

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Eurotherm 3116 PID Betriebsanweisung Seite 9