1
2
SpeCIFICAtIoNS
Measurement Range:
1 - 9999 µS or ppm (0.0010 - 9.999 ppt salinity)
Accuracy (After Wet Calibration):
± 1% of reading
Repeatability:
< 1000 µS or ppm ± 1 Count
≥ 1000 µS or ppm ± 0.3% of reading
Resolution:
Conductivity and TDS:
0.1 for 1.0 - 99.9 µS or ppm
1 for 100 - 9999 µS or ppm
Salinity: 0.0001 for 0.0010 - 0.0999 ppt
0.001 for 0.100 - 9.999 ppt
Temperature: 0.1 ºC or ºF
Time to Reading Stabilization:
10 - 20 seconds
Active Mode Power Consumption:
30 - 100 mA
Sleep Mode Power Consumption:
2 µA
Temperature Measurement Range:
0 - 71° C or 32 - 160° F
Temperature Accuracy Displayed:
± 0.1 ºC or ± 0.1 ºF
Temperature Compensation Method:
Automatic to 25ºC
Physical Dimensions:
17.15 cm L x 1.59 cm D or 6.75 in. L x .625 in. D
Weight:
55 g or 1.94 oz.
Case Material:
Anodized Aluminum with Protective Coating
Battery Type:
N type, Alkaline
Battery Voltage:
1.5 V
Calibration Solution Point:
1800 µS KCl; 3000 ppm 442™ (2027 ppm NaCl)
Operating/Storage Temperature:
0 - 55ºC or 32 - 131ºF
Water Resistance:
IP67 and NEMA 6
ORIGINAL
EDITED FOR USE
Minimum height 5 mm
EN61236-1: 2006 - Annex A: 2008
Electrostatic discharge to case of instrument may
cause PT1 to spontaneously power on. In this case,
the PT1 will power off after several seconds.
FULL operAtINg INStrUCtIoNS
I. Solution Selection
The PT1 allows you to select from several preprogrammed
measurement modes. The following table lists measurement modes
with their corresponding parameters; temperature compensation and
TDS conversion solution models; and units of measure.
Mode
parameter
Solution Model
Units
Cond
kCl
Conductivity
potassium chloride
microsiemens (µS)
tdS
442
Total Dissolved
Solids (TDS)
442™ Myron L Natural
Water Standard
parts per million
(ppm)
tdS
NaCl
TDS
sodium chloride
ppm
SALt
442
Salinity
442™ Myron L Natural
Water Standard
parts per thousand
(ppt)
SALt
NaCl
Salinity
sodium chloride
ppt
eSC
This is the escape function. Selecting escape exits solution
selection without saving changes and turns the PT1 off.
To select a measurement mode:
1. Press and release the push button. The LCD will briefly display the
firmware version then the current measurement mode. If the measurement
parameter and solution type displayed are correct, proceed to
II. Temperature Unit Selection. If not, proceed to step 2.
2. Immediately push and hold the push button. The display will scroll
through “CAL”, “SOL
SEL
”, “FAC
CAL
”, “ºCºF
T
EMP
”, and “ESC”. Release
the button when “SOL
SEL
” displays.
3. While the display scrolls through “PUSHnHLD” and “SOL SEL”, push
and hold the push button. The display will scroll through “Cond KCl”,
“tdS 442”, “tdS NaCl”, “SALt 442”, “SALt NaCl” and “ESC”. Release
when the desired measurement mode displays.
4. “SAVEd” displays indicating the measurement mode is saved in
memory. Allow the pen to time out to turn power off.
