User Guide

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FUNCTIONAL OPERATION GUIDEFUNCTIONAL OPERATION GUIDE
FUNCTIONAL OPERATION GUIDEFUNCTIONAL OPERATION GUIDE
FUNCTIONAL OPERATION GUIDE
Function Key Indicator Remarks
Lowest Temperature LO LO Hold down LO to read
Highest Temperature HI HI Hold down HI to read
Clear HI/LO memories CLEAR "HI/LO" Blinks Twice
Hold and Memory HOLD (HI 9040) "M" Store reading in memory and
(HI 9050 and HI 9051 HOLD/MEM freeze it on display
only) (HI 9050 and Press again to release display
HI 9051) with reading retained in
memory
For HI 9050 and HI 9051 only:
On/Off alarm ENABLE HI •
)
) Indicators disappear if key is
LO •
)
) pressed again
Set high alarm SET HI •
)
) 1. Waiting for selection
LO •
)
)
HI HI •
)
) 2.High alarm set mode
! or " HI •
)
) 3.Press either key to adjust
setpoint
SET HI •
)
) 4.End high alarm set mode
LO •
)
) and wait for next selection
SET 5.Exit alarm setting. Activate
alarm manually
Set Low alarm SET HI •
)) 1.Wait for selection
LO •
))
LO LO •
)
) 2.Low alarm set mode
! or " LO •
)
) 3.Press either key to choose
setpoint
SET HI •
)
) 4.End low alarm set mode
LO •
)
) and wait for next selection
SET 5.Exit alarm setting. Activate
alarm manually
Scroll up/down
! or " Increase or decrease display
(for alarm setting only) by 0.1 steps. Hold to accelerate
change
Memory recall MR/∆M M Recall stored memory
Temperatures MR/∆M ∆M Subtract present temperature
Differential from memory content
MR/∆M Return to normal code
Measurement Mode °C/°F °C/°F Toggle between °C and °F
(HI9040)
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All Hanna thermometers have been accurately pre-calibrated at the
factory.
It is, however, recommended to have all thermometers recalibrated at
least once a year. For an accurate annual recalibration, contact your
nearest Hanna Service Center.
Hanna Test Plugs provide a quick and easy way to test the meter's
accuracy by simply connecting these Test Plugs to the probe connector
of the meter. If the reading differs by more than ±0.4°C (±0.8°F)
from the Test Plug value, the unit is due for recalibration. Choose the
Test Plug closest to your measurement range to best suit your needs:
HI 765-18C Calibration key, –18.0°C ±0.4°C
HI 765000C Calibration key, 0.0°C ±0.4°C
HI 765070C Calibration key, 70.0°C ±0.4°C
HI 765-004F Calibration key, –0.4°F ±0.8°F
HI 765032F Calibration key, 32.0°F ±0.8°F
HI 765158F Calibration key, 158.0°F ±0.8°F
DISPLAY CODESDISPLAY CODES
DISPLAY CODESDISPLAY CODES
DISPLAY CODES
Display Description
Er Probe disconnected or temperature out of range
Eb Low battery error
All segments light up Out of range or no probe connected to the instrument
for more than 3 seconds
HI 9050 and HI 9051 only:
HI"•
)
)" Measured value exceeds HI alarm setpoint
LO •
)
)
HI •)) Measured value falls below LO alarm setpoint
LO"•
))"
- - - M Empty memory
CALIBRATIONCALIBRATION
CALIBRATIONCALIBRATION
CALIBRATION