Fieldpiece ST4 User manual

01 02 03 04 05
Controls
Select T1 as thermocouple to display.
Select T2 as thermocouple to display.
Select real time T1-T2 to display.
Display minimum or maximum captured
measurement. Press and hold to clear.
Hold measurement.
Select resolution: 1° or 0.1°
Select temperature scale: °C or °F
Power ON or power OFF.
Adjust calibration offset ofT1 Type K jack.
Adjust calibration offset ofT2 Type K jack.
Quick Start
1 Install the 9V battery.
2 Press ON OFF for 1 second to power on.
3 Plug 2 Type K thermocouples into the top.
4 Press T1, T2, or T1-T2 to select display mode.
5 Read temperature directly on the display.
Certifications
EN61326-1, CE-EMC
RCM
WEEE
RoHS Compliant
Description
The ST4 Dual Temp Digital Thermometer is
ruggedized for field use and simple to use. The
rubber boot protects against drop impacts and
is comfortable to hold.
Plug in 2 Type K thermo-
couples and see the calculated
difference in real time. Each
thermocouple jack has its
own offset pot for accurate
calibration. Use the ST4 in the
included clear case for added
protection and easy viewing
with magnet.
Indicators
LEDshinesRedwhenarequiredthermocouple
for selected display mode is not connected.
Displaying held measurement.
Displaying maximum measurement.
Displaying minimum measurement.
Displaying T1 thermocouple measurement.
Displaying T2 thermocouple measurement.
Displaying T1-T2 real time calculation.
Displaying temperature in Fahrenheit.
Displaying temperature in Celsius.
Battery needs to be replaced.
Fieldpiece
Dual Temperature
Meter
OPERATOR'S
MANUAL
Model ST4
WARNING
To avoid electrical shock, do not use this instrument when
voltages at the measurement surface exceed 24VAC or 60VDC.
To avoid electrical shock, disconnect thermocouples from the
ST4 before opening case or battery cover.
To avoid damage or burns, do not take temperature measure-
ments in microwave ovens.
When testing hot temperatures, the thermocouple and velcro
may become hot. Do not handle the thermocouple or the velcro
when hot.
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
T1 T2
OFFSET
T2T1
HOLD
MIN/MAX
°C/°F
1°/0.1°
T1-T2
ON OFF
ºF
T1
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2
AUTO-OFF
ST4
T1 T2
OFFSET
T2
T2
T1
T1
HOLD
HOLD
MIN/MAX
MIN/MAX
°C/°F
°C/°F
1°/0.1°
1°/0.1°
T1-T2
T1-T2
ON OFF
ON OFF
T1
T2
ºF
ºF
ºC
HOLD
MAX
MIN
T1
T1
T2
T1-T2

06 07 08 09 10
Maintenance
CLEANING: Clean the exterior with a damp
cloth. Do not use detergents or solvents.
BATTERIES: The 9V battery must be replaced
when the low battery icon is displayed.
Pull off the rubber boot, unscrew the battery
cover, and replace the old battery.
FIELD CALIBRATION: Calibration should be
performed regularly forthehighestaccuracy.
The calibration is offsetting the temperature
forthat jack forthat particularthermocouple.
1 Stabilize distilled ice water.
2 Immerse the bead of the T1 thermocouple.
3 Select T1.
4 Use the T1 calibration pot to dial in 32.0°F.
5 Repeat for T2.
Specifications
Specifications good in ambient conditions of 73°F ±9°F
(23°C ±5°C), <75% relative humidity
Display: 3.5 digit LCD, 2000 count
Over range: "OL" or "-OL" is displayed
Range: -58 to 2000°F (-50 to 1300°C)
Resolution: 0.1°
Accuracy:
±4°F @ -58 to 32°F
±(0.3%rdg +2°F) @ 32 to 1100°F
±(0.5%rdg +2°F) @ 1100 to 2000°F;
±2°C @ -50 to 0°C
±(0.3%rdg +1°C) @ 0 to 600°C
±(0.5%rdg +1°C) @ 600 to 1300°C
Accuracy after field calibration:
±1°F @ 30 to 120°F, ±6°F @ 0 to 50°F
Temperature coefficient:
0.1 x (specified accuracy) per °C (0 to 18°C, 28 to 50°C)
Measurement rate: 2.5 readings/second
Battery type: 9V, NEDA 1604, JIS 006P, IEC 6F22
Battery life: 200 hours typical alkaline.
is displayed when the battery needs to be replaced.
Operating environment: 32°F to 122°F (0°C to 50°C) at <75% RH
Storage temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH
(with battery removed)
Limited Warranty
This meter is warranted against defects in material or workman-
ship for one year from date of purchase from an authorized Fieldpiece
dealer. Fieldpiece will replace or repair the defective unit, at its option,
subject to verification of the defect.
This warranty does not apply to defects resulting from abuse,
neglect, accident, unauthorized repair, alteration, or unreasonable use
of the instrument.
Any implied warranties arising from the sale of a Fieldpiece prod-
uct, including but not limited to implied warranties of merchantability
and fitness for a particular purpose, are limited to the above. Fieldpiece
shall not be liable for loss of use of the instrument or other incidental or
consequential damages, expenses, or economic loss, or for any claim of
such damage, expenses, or economic loss.
State laws vary. The above limitations or exclusions may not apply
to you.
Obtaining Service
Visit www.fieldpiece.com/rma for the latest information on
how to obtain service.
www.fieldpiece.com
© Fieldpiece Instruments, Inc 2017; v10
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