NEP-9500 MANUAL V1.01
Observator Instruments V1.01
Copyright 2017
©
Page 5
1.
NEP-9500 INTRODUCTION
Thank you for purchasing an ANALITE NEP-9500 series turbidity probe. It will give you
years of service if you install and maintain it according to guidelines set out in this
Manual.
The ANALITE NEP-9500 series of turbidity probes are an enhanced version of our
successful ANALITE 90 and 95 series probes. They offer better performance, more
output options and greater ease of deployment yet are available in the same
mechanical package (Glanded version).
The ANALITE NEP-9500 series turbidity probes are designed for monitoring and
process applications where turbidity levels of up to 1,000NTU may be encountered.
Standard ranges are 0NTU, 10NTU, 400NTU, 1,000NTU, 3,000NTU and 5,000NTU.
Specifically, the ANALITE NEP-9500 probes are designed for applications that will not
allow bio-fouling to build up such as short monitoring deployment or placement in fast
and cold running water. The ANALITE NEP-9500 probes however, with their integral
wiper assembly, are designed where bio-fouling or sedimentation buildup is likely. The
ANALITE NEP-9500 series of probe with a stainless steel case may be submerged to
a depth of 50 meters. The composite case version is rated to 200 meters.
The ANALITE NEP-9500 probes use 90
°
optics and employ infrared light in accordance
with ISO7027. All probes use a unique modulation technique that ensures almost total
rejection of ambient light conditions as well as a unique microprocessor controlled
differential sample and hold circuit for enhanced performance particularly at low
turbidity levels. 180 degrees is also available which measures up to 30,000NTU.
