Spectrum Technologies 2958 User manual
IR Crop Temperature/
External Soil Temperature
Meter
PRODUCT MANUAL
Item # 2958
2
CONTENTS
Specifications 2
Description 3
Operation 4
Maintenance 7
Warranty 8
CE Declaration of Conformity 8
Thank you for purchasing the Infrared Crop Temp / External Soil
Temp Meter. The meter is designed to combine non-contact IR
thermometer with a penetration probe to enable both leaf surface
and soil temperature measurement using the same meter. Please
read this manual thoroughly before using your meter.
Specifications
Infrared Temperature
Emissivity 0.97
Distance to Target Ratio 3:1
Range -40 to 149°F (-40 to 65°C)
Accuracy ±2°F (±1°C)
Probe Temperature
Range -40 to 149°F (-40 to 65°C)
Accuracy ±1°F (±.5°C) for 23 to 149°F (-5 to 65°C)
±2°F (±1°C) for -40 to 23°F (-40 to –5°C)
Response Time <500ms
Auto Power Off 20 seconds
IP Rating IP65
Power Supply 9V battery
3
Description
Front Panel
LCD Display
Top Row:
“HOLD”: Last reading displayed
Battery icon: Low battery warning
Main Display: Real time temp.
Middle Display: Max temp.
Lower Display: Timer
Probe icon: Probe measurement
mode
4
Operation
Power On/Off
Press any key to turn on the meter in last operating mode. It
automatically turns off after 20 sec. non-operation.
Select display modes
Press MODE button to select display modes. It cycles among
IR, Probe, and Counter operation modes. In IR mode, the
LCD shows real time temp. and max. reading. The Probe
mode displays a probe icon on the left and temp. on the main
screen.
Switch temperature units
Select °C or °F by pressing SET button when the meter is on.
In probe mode, wait for readings to stabilize before switching
units.
IR measurement: Surface temperature
Point the infrared sensor to the target, press and hold MEAS
button to scan the object surface, the illumination beam can
be seen highlighting the measurement area. The LCD dis-
plays real time temperature and maximum value since power
on.
Probe measurement: Soil or liquid temperature
Press MODE button to enter probe measurement mode. A
probe icon shows on the left of the LCD. Unfold the probe
5
and insert into the target at least 1/2” (10mm) deep for sev-
eral seconds or stir the liquid to equilibrate with the target ob-
ject, and then press MEAS to measure internal temp. The
probe icon blinks while measuring and stops with short beeps
when the readings stabilize.
It is important to clean the probe tip before and after every
measurement for better accuracy and probe life maintenance.
Data Hold
The data hold function works in both IR and probe modes. In
IR measurement, just release MEAS button, the meter stops
measuring and holds the last reading until next measurement
is taken or power off. To hold the data in probe measure-
ment, release MEAS button and wait until it gets the stable
reading. Then the “HOLD” icon will display on the top of LCD
along with the held reading.
Timer function
The meter has timer and alarm for control purpose, which
ranges up to 9:59:59. Press MODE to enter counter setting
(after probe mode), and the LCD displays 0:00:00
(hour:minute:second) or previous setting.
Press MEAS to start countdown with previous setting, or
press SET button to have a new one. The Second digits will
blink first for value change. Press SET again to increase the
value and then MODE to select minute and hour digits. After
hour setting is completed, press MEAS to count down.
6
“:” blinks while the counter is working. Users can pause or
continue it by pressing MEAS button in counter mode. Or
press MODE to return to IR or probe mode and let it count
down in the background. The counting timer will remain on
the screen even when it auto turns off.
The alarm sounds for 30 seconds when the timer reaches 0.
Users may press any button to stop alarming or just wait for
30 seconds until it automatically stops.
Notes
The meter is waterproof at IP65 rating and the probe is wash-
able. Take care not to let water, steam or smoke get directly
into the infrared sensor, as it will affect the accuracy.
The probe is not replaceable. Do not attempt to unplug the
probe as this will damage the unit.
Troubleshooting
Meter does not turn on or display flashes
Check the battery voltage and replace with fresh battery if
necessary.
Display is fixed and the function keys don’t work
Remove the battery for one minute and then reinstall it. Re-
place with a new battery if the problem isn’t solved after re-
set.
7
Maintenance
Case cleaning
Use a damp cloth to clean the exterior housing. Make sure no
water goes inside the infrared lens.
Lens cleaning
Clean the infrared lens after a certain time of operation. Use
low pressure compressed air or soft damp swab to remove
the particles on the lens.
Probe cleaning
Clean the probe before and after every measurement.
Proper maintenance can assure better performance and
longer life of the probe.
8
DECLARATION OF CONFORMITY
Spectrum Technologies, Inc.
12360 S. Industrial Dr. East
Plainfield, IL 60585 USA
Model Numbers: 2958
Description: Infrared Temperature Meter with External Probe
Type: Electrical Equipment for Measurement, Control, and Laboratory
Use
Directive: 2004/108/EC
Standards: EN 61326-1:2006
EN 61000-4-2:1995, including A1:1998 and A2:2001
EN 61000-4-3:2002
EN 55011:2007
Michael J. Dunning, Weather Products Manager January 16, 2009
War r anty
This product is warranted to be free from defects in material or work-
manship for one year from the date of purchase. During the warranty
period Spectrum will, at its option, either repair or replace products that
prove to be defective. This warranty does not cover damage due to
improper installation or use, lightning, negligence, accident, or unau-
thorized modifications, or to incidental or consequential damages be-
yond the Spectrum product. Before returning a failed unit, you must
obtain a Returned Materials Authorization (RMA) from Spec-
trum. Spectrum is not responsible for any package that is returned
without a valid RMA number or for the loss of the package by any ship-
ping company.
12360 S. Industrial Dr. E
Plainfield IL 60585
(800) 248-8873 or (815) 436-4440
Fax (815) 436-4460
www.specmeters.com
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