Hanse VTC Series, Installation, Operation And Maintenance Instructions

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Calibration
Only qualified technical personnel should do calibration procedures with access to the
equipment listed in each section.
Before beginning calibration procedures, warm up the equipment for at least 20
minutes.
Watlow F4-1 Temperature and Vibration
Restore Factory Values
Each controller is calibrated before leaving the factory. If at any time you want to
restore the factory calibration values, use the last parameters in the menu: Restore In x
(1 to 3) Cal. Press right arrow
No special equipment is necessary.
Following Chapter 9 of the Watlow F4 Manual:
Input 1 Thermocouple Input Procedure
Equipment
• Type J reference compensator with reference junction at 32°F (0°C), or type J
thermocouple calibrator to 32°F (0°C).
• Precision millivolt source, 0 to 50mV minimum range, 0.002mV resolution.
Setup and Calibration
1. Connect the correct power supply to terminals 1, 2 and 3 (see the Wiring
Chapter and the Appendix).
2. Connect the millivolt source to Input 1 terminals 62 (-) and 61 (+).
3. Enter 50.000mV from the millivolt source. Allow at least 10 seconds to stabilize.
Press the Right Key once at the Calibrate Input 1 prompt (Factory Page). At the
50.00mV prompt press Right Key once and to store 50.00mV press the Up Key
once.
4. Enter 0.000mV from the millivolt source. Allow at least 10 seconds to stabilize.
At the 0.00mV prompt press Right Key once and to store 0.00mV press Up Key
once.
5. Disconnect the millivolt source and connect the reference compensator or
thermocouple calibrator to Input 1 terminals 62 (-) and 61 (+). With type J
thermocouple wire, if using a compensator turn it on and short the input wires.
When using a type J calibrator, set it to simulate 32°F (0°C). Allow 10 seconds
for the controller to stabilize. Press Right Key once at the Calibrate Input x (1 or
2) prompt (Factory Page). At the 32°F Type J prompt press Right Key once and
to store type J thermocouple calibration press Up Key once.
6. Rewire for operation and verify calibration.
Input 2 Voltage Input Procedure
Equipment
• Precision voltage source, 0 to 10V minimum range, with 0.001V resolution.
Setup and Calibration
1. Connect the correct power supply to terminals 1, 2 and 3 (see the Wiring
Chapter and the Appendix).
2. Connect the voltage source to terminals 53 (+) and 58 (-) of the controller.
Authorization and Copyright of this document is
controlled by Hanse Environmental Inc.
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