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    อุปกรณ์วัด pH (Waterproof pH meter for boilers and cooling towers)

    HI 99141
    Waterproof pH meter for boilers and cooling towers

    HI 99141 is a portable waterproof pH meter designed for the control of water in boilers and cooling towers. In these environments, it is usual the proliferation of algae, bacteria and the formation of scale are exceeded when certain values ​​of pH. To avoid therefore cause irreparable damage to facilities is necessary to carefully monitor the pH, also the magnetic field generated by the presence of pumps and fans often disturbs the direct measurement of the collection tank causing deviations of reading even higher pH unit. To eliminate such interference has been used the technology of the Matching-Pin combined with the steel protection. In this way, the measurement becomes stable and accurate to a hundredth of pH.
    electrode HI 72911 The special double junction with sensor plate and annular junction in PTFE, prevents the accumulation of dust and maximizes the contact surface with the solution to be examined. This way you extend the life of the electrode making immediate cleaning. This advanced electrode is also equipped with temperature sensor and built-in signal amplifier.
    The instrument also has the automatic calibration with 2 sets of pads, graphic symbols and indications that guide you through the tasks, display system charge remaining battery powering up, the indication of instability of reading and HOLD function.

    SPECIFICATIONS HI ​​99141

    Parameter
    PH scale -2.00 to 16.00 pH
    Resolution pH 0.01 pH
    Accuracy pH (at 20 ° C) ± 0.02 pH
    Scale temperature -5.0 to 105.0 ° C / 23.0 to 221.0 ° F
    Temperature resolution 0.1 ° C / 0.1 ° F
    Accuracy at 20 ° C temperature ± 0.5 ° C (up to 60.0 ° C) ± 1.0 ° C (over) / ± 1.0 ° F (up to 140.0 ° F), ± 2.0 ° F (outside)
    PH Calibration Automatic 1 or 2 points with 2 sets of memorized buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18)
    Temperature Compensation Automatic -5.0 to 105.0 ° C
    Electrode HI 72911, amplified, coated steel, with temperature sensor (included)
    Supply 3 x 1.5V AAA / approximately 1200 hours of continuous use, automatic shut-off after 8 minutes of inactivity
    Terms of use from 0 to 50 ° C; RH max 100%
    Dimensions and weight 152 x 58 x 30 mm / 205 g

    Accessories HI 99141

    HI 70004P Solution pH 4, 25 sachets of 20 ml
    HI 70007P Solution pH 7.01, 25 sachets of 20 ml
    HI 7004L Solution pH 4.01, 500 mL
    HI 700661P Cleaning Solution for General Purposes, 25 sachets of 20 ml
    HI 7007L Solution pH 7.01, 500 mL
    HI 7010L Solution pH 10.01, 500 mL
    HI 70300L Electrode storage solution, 500 mL
    HI 710023 Protective rubber boot orange instrument type HI 991001N
    HI 710024 Protective rubber boot blue instrument type HI 991001N
    HI 72911D Combination pH electrode in steel with internal temperature sensor, DIN connector and 1 m cable for HI 99141

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    โทร. 081-847-6768, 02-191-3928 แฟ็กซ์. 02-191-3929 


    คุณโทณิวัฒน์ 085-811-4779 , คุณนารีรัตน์ 085-814-9653

    E-mail : info@highents.com , IDline: @alltestkit

     

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