Generation of electrical parameters, Thermocouple simulation – WIKA Pascal ET User Manual
Page 26
6 Commissioning, operation
26 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
GB
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
J
-
210…1200
0,1
-
190…1200
0,01
K
-
270…1370
0,1
-
160…1260
0,01
T
-
270…400
0,1
-
130…400
0,01
F
0…1400
0,1
0…1400
0,01
R
-
50…1760
0,1
150…1760
0,01
S
-
50…1760
0,1
170…1760
0,01
B
50…1820
0,1
920…1820
0,01
U
-
200…400
0,1
-160
…400
0,01
L
-
200…760
0,1
-
200…760
0,01
N
-
270…1300
0,1
0…1300
0,01
E
-
270…1000
0,1
-
200…1000
0,01
C
0…2300
0,1
0…2000
0,01
M
-
50…1410
0,1
-
50…1410
0,01
Table 5
– Thermocouple simulation table