Welch Allyn Corival V2 - User Manual - Manual (Page 10)

Operator Manual Corival
10
3.3.1 Hyperbolic
Hyperbolic mode means that the workload P can be adjusted in watt. The workload is kept
constant independent of rpm.
3.3.2 HR controlled
Heart rate can be adjusted and the workload is regulated until the adjusted heart rate is
reached. This means when heart rate increases above the adjusted level load is decreased and
the other way around.
3.3.3 Linear
In linear mode the workload P is coupled with rpm using the following formula:
P [W] = π* (n [min
-1
] )
2
The linear coupling constant π is the adjustable parameter in this case.
3.3.4 Fixed Torque
In Fixed Torque mode the workload is regulated such that the torque is kept at a set fixed
value, according the formula:
T [Nm] = (P*60) / ( 2 * Ω * n [min
-1
])
3.4 Settings
Under settings all device specific and interface adjustments can be made. It concerns to all
those items not related directly to ergometry.
3.4.1 Default Startmenu
Normally your ergometer starts in the main menu. But you can modify this menu to your own
desired settings. This is convenient when your ergometer is used often in the same setting,
The following menus can be selected as startmenu: MAIN MENU; MANUAL; TERMINAL;
ANALOG At the next startup of your ergometer the selected menu will be activated.
3.4.2 Keyboard On/Off
If you do not want to interrupt a training or you do not want the test subject to interrupt the
training by pressing a key accidentally, the possibility is offered to disable the keyboard
Now you wonder how to get back the control to the keyboard. Act as follows:
Switch off the ergometer
Switch it on again while keeping the ( ) button pressed. Now you have back the control. Go to
SYSTEM PARAMETERS / KEYBOARD ON/OFF and set it to ON.
At the next startup of the ergometer the keyboard is enabled again.
3.4.3 Test Functions
For servicing and calibration of the device a number of diagnostic tools is available in the
software. They are hidden under Test functions. You need a safety code to enter the
TESTFUNCTIONS.
3.4.4 P In/Out Analog
The ergometer can be controlled by an external device which has an analog output only. This
is done using the ANALOG mode. With P In/out Analog the analog scaling can be adjusted: 1
V analog in can correspond with a workload of 100 W / 200 W / 500 W.