Wika Pascal ET Manual do Utilizador descarregar pdf (Página 26)

6 Commissioning, operation

26 WIKA Operating Instruction, Pascal ET and Pascal ET/IS

6.2.4 Generation of electrical parameters

The output module (OUT) allows to generate voltage, current, resistance and frequency.

For the voltage there are three different ranges with different resolutions. Resistance has two

ranges while current and frequency have only one range. Ranges and resolutions are given in the

following table:

Range

Max resolution

Voltage

(0…100) mV

0,0001 mV

(0…2) V

0,000001 V

(0…20) V

0,00001 V

Current

(0…20) mA

0,0001 mA

Resistance

(0…400) Ω

0,001 Ω

(0…10000) Ω

0,01 Ω

Frequency

(0,5…20000) Hz

0,001 Hz

Pulse

(0,5…200) Hz / 9999999 impulse

Table 4 – Range of output signals

6.2.5 Thermocouple simulation

Through the output module it is possible to simulate thermocouples. This function can be used to

test and calibrate: thermocouple transmitters, analog or digital indicator. A thermoresistance Pt100,

inserted in isothermal contact with the connectors, measures the ambient temperature for the cold

junction compensation. It is possible to disable the automatic cold junction compensation and set

out the reference temperature by the keyboard.

The instrument can simulate thermocouple types indicated in the following table:

Type

Range/°C

Resolution/°C

Max

-210…1200

0,1

-190…1200

0,01

-270…1370

0,1

-160…1260

0,01

-270…400

0,1

-130…400

0,01

0…1400

0,1

0…1400

0,01

-50…1760

0,1

150…1760

0,01

-50…1760

0,1

170…1760

0,01

50…1820

0,1

920…1820

0,01

-200…400

0,1

-160…400

0,01

-200…760

0,1

-200…760

0,01

-270…1300

0,1

0…1300

0,01

-270…1000

0,1

-200…1000

0,01

0…2300

0,1

0…2000

0,01

-50…1410

0,1

-50…1410

0,01

Table 5 – Thermocouple simulation table

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 87 88

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