Recorder
 
Model
 
 
Telog PR-31
Type
Single channel pressure recorder
Measurement
 
>Resolution
12 bits (0.025%)
>Accuracy
 
± 0.075% of full scale at 23º C
± 75 ppm/º C
>Temperature Range
-40ºC to +65º C
Recording
 
Sample rate
 
Programmable from 1/sec
up to 8 hours
Data interval
 
Programmable from 1/sec
up to 8 hours
Values saved
Selectable min, avg & max per interval
Memory
128 Kbytes (~80,000 data values)
Interface
 
Type:
RS-232; 300 to 19.2 Kbaud
Connnector:
Circular 4 pin watertight
Battery
 
Type
Single AA Lithium (Saft LS 14500 or equal)
Life
7 years typical
Physical
 
Temperature ranges
 -40º C to +65º C
Environmental
Submersible to NEMA 6 (IP-67)
Enclosure
316 Stainless steel
Pressure vent
0.2 micron Gore-Tex filter
Size
 
140 mm (5.5”) long x 45 mm
(1.75”) diameter
Weight
1 Kg (2.2 lbs)
 
 
Sensor
 
Model
Telog PT-10R
Type
Strain gauge pressure sensor
Range
Selectable 5, 10 and 15 PSI
Accuracy
 
>Non-linearity
±0.15% of span; BFSL
>Repeatability
±0.03% of span; BFSL
>Hysterisis
±0.03% of span; BFSL
Physical
 
Pressure connection
5/8”-18 UNF female
Environmental
Submersible to NEMA 6P (IP-68)
Sensor length
115mm (4.5”)
Sensor diameter (max)
21.6mm (0.85”)
Sensor weight
170g (6 oz) nominal
Sensor body material
316 stainless steel
Cable
 
vented polyurethane 6.4mm
diameter (1/4”)
Cable weight
41 g/m (0.027 lbs./ft)
Connections
 
Cable
 
8 meter cable with
submersible connector
Process connection
3/4” MNPT: 0.9” insertion length
Pipe fitting
3/4” MNPT
Battery Life
 
1 to 2 years based on
pH and temperature
Computer
Requirements
 
For S-3 PC or
S-3PCL
 
 
 
 
 
IBM compatible computer with a
586/133 MHz or higher processor
running on:
Microsoft Windows 95/98/NT/2000/XP.
At least 32 MB of RAM,
a hard disk with at least 200 MB
of free space and a pointing device.
 

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