Demo Test Page
Instrumentation & Controls Demo
Non-SMART Temperature Transmitter (0-100°F = 4-20mA)
Adjustment Effects:
ZERO adjustment shifts the entire output curve up or down.
SPAN adjustment changes the slope, pivoting around the specified pivot point.
Error: 0%
0°F
4.00 mA
25°F
8.00 mA
50°F
12.00 mA
75°F
16.00 mA
100°F
20.00 mA
SMART Temperature Transmitter Trimming
Resolution: ±0.004 mA (12-bit)
Sensor Trim (Input Calibration)
Temperature Calibrator
0.00 °F
▲
0
▼
▲
0
▼
▲
0
▼
.
▲
0
▼
▲
0
▼
Sensor Trim Procedure
1.
Connect calibrator and set to 0°F reference
2.
When 0°F is applied, capture low trim point
0.00 °F
3.
Set calibrator to 100°F reference
4.
When 100°F is applied, capture high trim point
100.00 °F
5.
Apply the trim correction to the transmitter
Output Trim (D/A Calibration)
FLUKE 789
ProcessMeter
4.000
mA
Output Trim Procedure
1.
Connect reference meter to transmitter output
2.
Set transmitter loop to 4mA output
3.
Enter the measured 4mA value from meter
4.
Set transmitter loop to 20mA output
5.
Enter the measured 20mA value from meter
6.
Apply the trim correction to the transmitter
Sensor Reading
0.00 °F
Calibrated PV
0.00 °F
Output Current
4.00 mA
Sensor Error
0.00 °F
Output Error
0.00 mA