Fieldpiece ST4 - Dual Temperature Meter - Manual

ST4
T1 T2 OFFSET
ON OFF
T1-T2
T1 T2 T2
1 /0.1 º º T2 º º C/ F
Min
/Max T2 HOLD
ºF T1
Fieldpiece
Dual Temperature
Digital Thermometer
Model: ST4
OPERATOR’S MANUAL
Description
The ST4 is a portable standalone dual tempera-
ture thermometer. Plug in one or two of the supplied
k-type thermocouples and find T1, T2, or T1-T2.
The supplied rubber boot and case give the ST4
Dual Temperature Digital Thermometer plenty of
protection and durability to last in the field.
The ST4 has been designed to be used while
inside the carrying case. Use the magnet to hang it.
The front is clear so you can press the buttons and
read the display. The zippers allow the thermocou-
ples to exit from the top of the case.
Operation
1. Turn on the ST4.
2. Select ºC or ºF.
3. Plug in one or both of the k-type ther-
mocouples to the top of the ST4. The
red LED will light up when a necessary
thermocouple isn’t engaged.
4. Press “T1” for the left thermocouple.
Press “T2” for the right thermocouple.
Press “T1-T2” to get the real-time
difference between the two thermo-
couple readings.
5. Select temperature resolution by
pressing the “1º/0.1º” button.
6. “HOLD” keeps current reading on
screen until “HOLD” is pressed
again.
7. Press once to record MIN and MAX.
Press once to toggle between MIN
and MAX. Hold down for 1 second to
exit the MIN/MAX function.
8. Operate the ST4 in it’s case to take advantage
of the hanger. You can operate the ST4 while
still in the carrying case because of the clear
front window.
Note: When in HOLD or MIN/MAX, you cannot
change ºC/ºF or resolution (1º/0.1º).
Field Calibration
To calibrate the ST4, adjust the two “OFFSET”
pots on the front of the meter labeled “T1” and “T2”.
The best way to calibrate is to match to a known
temperature. Ice water is very close to 32ºF (0°C)
and is readily available. Accuracies of one degree
or better are easily obtained.
1. Stabilize a large cup of ice water. Pure, distilled
water will be the most accurate.
2. Immerse one probe in ice water and let it stabi-
lize.
3. Select "T1" and adjust the "T1" calibration pot
on the face of the meter to display 32.0 (0.0).
4. Remove T1 from the water and repeat the previ-
ous steps 3 and 4 for "T2".
Specifications
Measurement range: -58 to 2000ºF (-50 to
1300ºC)
Resolution: 0.1º
Temperature coefficient: 0.1 x (specified accura-
cy) per °C (0 to 18°C, 28 to 50°C)
System accuracy after field calibration:
±1ºF @ 30 to 120ºF with field calibration
±0.5ºC @ 0 to 50ºC with field calibration
Meter accuracy: Accuracies for any of the given
ranges below are specified for operating tem-
peratures between 64 to 82ºF (18 to 28ºC), for 1
year, not including thermocouple error.
±4ºF @ -58 to 32ºF
±(0.3% rdg + 2ºF) @ 32 to 1100ºF
±(0.5% rdg + 2ºF) @ 1100 to 2000ºF
±2ºC @ -50 to 0ºC
±(0.3% rdg + 1ºF) @ -50 to 600ºC
±(0.5% rdg + 1ºF) @ 600 to 1300ºC
Measurement rate: 2.5 readings/second
Battery: Single standard 9-volt battery, NEDA
1604, JIS 006P, IEC 6F22.
Battery life: 100 hours- carbon zinc battery. 200
hours- alkaline battery. Replace when “ “ is
displayed.
Operating environment: 32 to 122ºF (0 to 50°C)
<70% RH
Storage environment: -8 to 140ºF (-22 to 60°C)
<80% RH with battery removed from meter.
Display: 3.5 digits LCD, 2000 count
Overrange: “OL” or “-OL” is displayed.
Accessories: 9V battery (installed), 2 k-type ther-
mocouples, 2 Velcro straps, rubber boot, case,
and operator’s manual.
Safety: Designed to meet EN61326-1, CE-EMC
Warranty
The product is warranted to the original purchas-
er against defects in material or workmanship for a
period of one (1) year from the date of purchase.
During the warranty period, Fieldpiece Instruments
will, at its option, replace or repair the defective unit.
This warranty does not apply to defects resulting
from abuse, neglect, accident, unauthorized repair,
alteration, or unreasonable use of the instrument.
Any implied warranty arising out of the sale of
Fieldpiece's products including but not limited to
implied warranties of merchantability, and fitness for
purpose, are limited to the above. Fieldpiece shall
not be liable for incidental or consequential dam-
ages.
Service
Return any defective ST4 meter to Fieldpiece for
warranty service along with proof of purchase.
Contact Fieldpiece for out of warranty repair
charges.
www.fieldpiece.com
WARNINGS
To avoid electrical shock, do not use this instru-
ment when voltages at the measurement surface
exceed 24VAC or 60VDC.
To avoid electrical shock, disconnect thermocou-
ples from the ST4 before opening case or battery
cover.
To avoid damage or burns, do not take tempera-
ture measurements in microwave ovens.
When testing hot temperatures, the thermocouple
and velcro may become hot. Do not handle the ther-
mocouple or the velcro when hot.
! !
ºF
T1 ºC T2
T1-T2
MIN MAX
HOLD
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