Cleaning, Maintenance, And Disposal; Specifications; Analyzer Specifications - Maxtec Handi+ Operating Manual & Instructions For Use

CAL Err hi: Sensor voltage too high
Press and hold the Calibration Button for three seconds to manually force a new calibration. If unit
repeats this error more than three times, contact Maxtec Customer Service.
CAL Err Bat: Battery voltage too low to recalibrate
Unit is at end of life, see page I for proper disposal.
5.0 CLEANING, MAINTENANCE, AND DISPOSAL
The HANDI+ analyzer requires little maintenance. For best performance and accuracy, the HANDI+
should be calibrated on a frequent basis. For general use, it is recommended the HANDI+ be cali-
brated once a month on a known source of oxygen such as clean dry (compressed) air. Reference the
calibration section in this manual for more details.
If the unit becomes wet, it should be dried off immediately with a soft dry towel. The display may indi-
cate low concentrations of oxygen if the sample port of the sensor becomes wet. In this case, remove
the barbed adapter and thoroughly dry inside and out with a soft dry towel or cotton applicator tip.
Additionally, dry the face of the sensor with a cotton applicator tip and allow to air dry for one half-
hour (or until the oxygen display returns to normal). Exposure of the HANDI+ to water or extremely
high RH may result in shortened life or cause the electronic circuit or battery to fail.
DISPOSAL: Please note the materials of construction for proper disposal. The material of the HANDI+
housing is a polycarbonate and ABS blend. The sensing portion of the HANDI+ contains lead and ace-
tic acid. The HANDI+ contains a printed circuit board and a Lithium Battery.
6.0 SPECIFICATIONS
6.1 Analyzer Specifications
Sensor Type: ...................................................Maxtec MAX-250 galvanic cell w/ Temperature Compensation
(Non-Replaceable). Extra-Life Oxygen Sensor, galvanic cell type.
Measurement Range: ........................................................................................................... 0.0 - 100.0% oxygen (gas)
Resolution/Display: ........................................................................................................................................................... 0.1%
The three digit LCD indicates values between 0.0 - 99.9% oxygen.
Over range indicated by one decimal point on display located after the first digit.
Accuracy and Linearity: .................................................. ± 1% of full scale at constant temperature, R.H. and
@ 15˚C - 40˚C pressure when calibrated at full scale.
± 3% actual oxygen level over full operating temperature.
Response Time: ................................................................................ < 15 seconds for 90% step change. (at 25˚C)
Warm-up Time: ...............................................................................................................................................None required
Operating Temperature: .....................................................................................................15˚C - 40˚C (59˚F - 104˚F)
Storage Temperature: ............................................................................................................-15˚C - 50˚C (5˚F - 122˚F)
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