Table of Contents
Advertisement
USB icon and port
Warning
The Blood FlowMeter's
medical rating is only
valid when used in
conjunction with the
power supply provided.
Using any other type of
supply will not guarantee
medical approval.
16
USB Port (LCC/Digital)
Th e Blood FlowMeter has a USB port, which connects to a computer with
USB ports or a PCI USB card installed, allowing high data transfer rates with
LabChart soft ware. Your Blood FlowMeter is supplied with a high-speed USB
cable. For proper use and reliable results, the Blood FlowMeter needs a high-
speed USB connection. In practical terms this means cables between any USB
devices must be no more than 5 meters (16 feet) in length. If you replace the
USB cable, buy a high-speed cable (fully shielded, twisted-pair and standard
USB connections: a narrow rectangular plug at one end and a square plug
with a bevelled top at the other).
Signal Output Connectors (Analog)
Th ere are two BNC output connectors on the back panel. All signals are
analog and are designed to be suitable for connection to a variety of data
recording systems, particularly PowerLabs.
Th e signal from the Output BSC represents the percentage backscatter (tissue
remittance). It has a range of 0–5 V (1% remittance is 50 mV).
Th e Output LDF provides the laser Doppler fl owmetry output signal, in
the range 0–5 V. Th is signal represents the relative Blood Perfusion with
1 perfusion unit equalling 1 mV.
Fan Outlet
In order to maintain the internal laser diode temperature, the Blood
FlowMeter utilizes a thermostatically controlled fan to supplement cooling
when required. Th e fan outlet must remain clear of obstructions during
operation.
DC Power Connector
Power to the Blood FlowMeter comes from an external, medically rated,
power supply (provided with the Blood FlowMeter). Th e power supply unit
is designed to connect to a wide variety of AC supplies. Connection of power
to the Blood FlowMeter is via a mini DIN connector. All power at this point
is low voltage.
Blood FlowMeter Owner's Guide
Advertisement
Table of Contents
