90-C Portable Conductivity, TDS,
and Temperature Logger

(90-FL shown. 90-C is almost identical)

User-friendly
Conductivity/TDS and Temperature are shown simultaneously on the 80 character display. The user-friendly menu system guides the operator through all operations such as calibration, setup etc. Full text help and error messages are provided along the way.

Waterproof
The 90-C is designed for rugged field applications in wet environments. The case, keypad and connectors are rated to IP65. The unit has been used successfully in the Antarctic, which is as extreme as any climate can get.

Good Laboratory Practices
To comply with GLP guidelines, the date, time and results of the last calibration are stored in memory, along with the unit's serial number. This data can be displayed or sent directly to the 
RS232 port. Warning of failed calibration is provided. All readings stored in memory are stamped with the date and time.

RS232 Port
All recorded data can be downloaded directly to a Printer or Computer with the standard RS232 port (cable sold separately). With the WinTPS communication software, many instrument functions can be controlled from the computer. This makes the units ideal for remote monitoring.

Specifications

TDS
Ranges
k=10 Sensor  : 0 to 100.0 ppM
               0 to 1000  ppM
               0 to 10.00 ppK
               0 to 100.0 ppK
k=1 Sensor   : 0 to 10.00 ppM
               0 to 100.0 ppM
               0 to 1000  ppM
               0 to 10.00 ppK
k=0.1 Sensor : 0 to 1.000 ppM
               0 to 10.00 ppM
               0 to 100.0 ppM
               0 to 1000  ppM
Resolution   : 0.1% of full scale of
               selected range.
Accuracy     : ±0.5% of full scale of
               selected range at 25^OC.
Temperature
Compensation : All readings 
               automatically 
               normalised to 25^OC at
               -2.2%/OC.
Zero 
Calibration  : Automatic in air.
Span 
Calibration  : Automatic to user- 
               defined standard.

Good Laboratory Practices
Date, time and value of last calibration for each parameter are stored. This information can be recalled or sent to the RS232 port at any time.

Warning of failed calibration is provided.

All readings stored in memory are stamped with the date and time.

Datalogging
9990 readings (8120 with extra data input active).

Extra Data Input
2 extra items of data can be input when using the Notepad function.
Each item can be a maximum of 4 characters, including a decimal point.
Extra Data items are labelled A and B.

Automatic Logging
The 90-C can  be programmed to...
- Automatically log from 1 to 288 
  readings per day.
- Automatically log at up to 12 
  specific times of the day.
- Automatically log readings at a 
  preset interval for a preset 
  duration.

RS232 Port
8 Bits, No Parity, 1 Stop Bit, 
XON/OFF Protocol.
300, 9600 & 19200 baud available.

Display
2 line x 40 Character alphanumeric LCD shows all readings simultaneously.

Keypad
5 Function keys, Menu key, 14 data entry keys, OFF, ON.

Dimensions
230  x 140 x 100 mm

Mass
Meter only   : Approx 1.5 kg
Full Kit     : Approx 5.0 kg

Environment
Temperature  : 0 to 45 ^OC
Humidity     : 0 to 90% R.H.

Ordering Information

Kit Includes
2.76mS/cm Cond Std, 1L......122305
Battery Charger.............130009
(or other to suit country)
90-C Handbook...............130050
(1 Litre Salinity or TDS standard to
suit k=10, k=1, or k=0.1 sensor 
is also supplied)

WinTPS Communication Software
for Windows 95 and later....130086

Solar Panel.................130012

Clip lead for external 
12V battery.................130013

Download this Specification Sheet in PDF format.

Download the full colour 90 Series Brochure (1.45 MB PDF).

Download the handbook for this instrument.

Hint : Right click on a link, then select "Save Target As..." or "Save Link As..." to save the file to your own computer.

If you do not have Adobe Acrobat in your computer, a free Acrobat Reader can be downloaded by clicking on the following link.

Web Author : TPS Pty Ltd
Copyright © 2002-2005 T.P.S. Pty Ltd
A.B.N. 30 009 773 371
Last modified: September 17, 2007