AU-OPR-400Ser-EN,
Rev D
29
iii. SP430 Module: Functional Tests
For installation of the SP430 module into the T402 or T403 Console, see ”T402 & T403 Multi-channel
Consoles” section A. Installing Modules on page 5 or follow the instructions on the IFU provided with
the module.
A. Transducer Calibration Check
The SP430 Pressure Module does not require any calibration prior to use. However, it is advisable to check
the calibrations on individual Pressure Transducers before use. The calibration check veries the voltage
gain of the Transducer channel to be 2.286 V/100 mmHg and requires that a known pressure is applied
from a calibrated source.
1) Press the [MEA] mode button; the indicator light will switch to MEA mode
2) Open the stopcock attached to the Transducer to air for zero pressure
3) The analog output should be at -2.857 V ±2%. If not, adjust the balance control knob. This serves to
correct any zero offset.
NOTE: KNOBS ADJUST EASILY - BEWARE OF UNINTENDED ADJUSTMENTS.
4) Close the stopcock and apply a known pressure of 100 mmHg from a calibrated source such as a
sphygmomanometer or graduated column of uid set at the appropriate height.
5) The analog output should be at -0.571 V (Do not adjust the balance control knob). NOTE: If the output at
100 mmHg is signicantly different, do not use the Pressure Transducer and contact your local Transonic
®
representative for troubleshooting or repair return instructions.
B. Calibrating a Data Acquisition System
The SP430 Pressure Amplier Module will interface with any data acquisition system that accepts an analog
output in the range of -5 volts to +5 volts. Two hardware connector choices are provided with front panel
BNC and rear panel screw terminals.
1) The sampling rate on the acquisition software should be 1 KHz for rodents and 200Hz for larger animals
2) Follow the data acquisition system’s protocol for a 2-point calibration.
3) Press the [0 mmHg] button on the SP430 Module. The green light above the button will illuminate to
conrm selection.
a) Voltages (-2.857 V ±2%) corresponding to 0 mmHg are output on both BNC output channels and
rear terminals. Use as 0 mmHg reference point.
4) Press the [100 mmHg] button on the SP430 Module. The green light above the button will illuminate to
conrm selection.
a) Voltages (-0.571 V ±2%) corresponding to 100 mmHg are output on both BNC and rear terminals.
Use as 100 mmHg reference point.