Zeroing The Invasive Blood Pressure Transducer; Calibrating The Invasive Pressure Transducer; Charging The Ibp Module Internal Battery - SA Instruments 1030 Operation Manual

Invasive Blood Pressure
Most IBP transducers provide a specified level of electrical isolation for the animal.
However, if additional isolation is desired, the IBP Module can be operated on internal
battery rather than mains power.
Zeroing the invasive pressure transducer
The transducer must be zeroed to ensure that accurate absolute pressure values are
displayed. When the transducer is connected to the IBP Module, a yellow LED flashes
to indicate zeroing is required. After securing the transducer in the magnet fringe field,
follow these steps to zero the transducer:
1. Position the three-way stopcock valve to block the port connected to the animal
cannula. This exposes the fluid in the transducer to atmospheric pressure.
2. Press the zero button on the IBP Module.
transducer is zeroed.
3. Position the three-way stopcock valve to block the port with no connection. This
exposes the fluid in the transducer to the animal's blood pressure.

Calibrating the invasive pressure transducer

The IBP transducer can be calibrated using a manometer or other source of known
pressure. The pressure source can be connected to the air port on the three-way
stopcock valve. Some transducers (e.g. Baxter Edwards TruWave) provide a separate
test port to allow verification of pressure readings without compromising sterility of the
system. An IBP gain calibration factor is available in the PC-sam SETUP WINDOW to
allow for adjustment of the readings.
Charging the IBP Internal battery
The IBP Module has a built in battery charger for the internal battery. The internal
battery is charged when the module is connected to 12 VDC power. If line power is
available near the magnet, the 12 VDC power supply can always be connected to the
module. If line power is not available near the magnet, the module should be removed
from the magnet and connected to the 12 VDC power supply for charging whenever the
system is not in use. The battery will reach full charge in 2.5 hours.
The IBP Module's internal battery operates between 7.0 and 8.2 V. A fully charged
battery will operate the Module for 6 hours. A low battery warning is displayed on the
PC when the battery is low. The module will operate for approximately 1.5 hours
following the first indication of low battery.
CHARGER window (refer to Chapter 3) and the SYSTEM INFO window (refer to
Chapter 9).
10-6
The battery voltage is displayed in
Revision C, August 2013
The LED will turn off when the