Digitimer NeuroLog NL108A User Manual

Users Manual

Introduction

PRESSURE AMP.
NL108
The NL108A Pressure Amplifier module provides two gain settings, one appropriate for
blood pressure measurement (1.0V at the output corresponds to 100mmHg pressure at
CALIB.
the transducer) and the other for low pressure measurement such as intra-tracheal
1.0V
pressure (100mV at the output equals 1cmH
OFF
An internal voltage calibrate provides the appropriate deflection (1.0V or 100mV) for
100mV
these two ranges. Other features include excellent DC stability, a push-button switch for
1.0V = 100mmHg.
setting the zero pressure baseline on the recording instrument and a sensitive zero offset
control.
100mV = 1cmH O
2
Although the NL108A is designed to mate perfectly with our own NeuroLog™ pressure
OUT GND.
transducers (NL108T1, NL108T2, NL108T3 or NL108T4), due to its internally adjustable
gain and bridge excitation voltage, it can be used with a variety of other standard
pressure transducers.
ZERO ADJ.
NB: The NL108A has the same functions and front panel as the earlier NL108 but
contains updated circuitry.
OUT
IN

Connections to Transducer

If a NeuroLog™ transducer is not being used an input plug type NL963K must be correctly wired to the particular
pressure transducer to be used with the NL108A.
The front panel socket, seen from the front of the NL108A panel, has the following connections :-
These connections are the same from the soldering end of the plug to be fitted to the transducer lead.
Digitimer Ltd
E-mail: sales@digitimer.com
NeuroLog™ System
NL108A - Pressure Amplifier
+ INPUT
- INPUT
The signals are described in terms of the function of the NL108A.
Tel:+44 (0)1707 328347; Fax:...373153
O at the transducer port).
2
+ BRIDGE EXCITATION
- BRIDGE EXCITATION
Page 1 of 3
NL108A
continued over ...
Copyright © 1996-2000
Website: www.digitimer.com