SciCan Statim 2000 Manual del operador descargar pdf (Pagina 9)

TDS

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2.11 – WATER QUALITY TESTER

(RPI PART #RPT820)

The Water Quality Tester (RPI Part #RPT820) is a meter de-

signed to measure water quality. This meter determines

the total amount of dissolved solids (TDS) present in the

water being used for sterilization. SciCan states the total

dissolved solids (TDS) allowable in the water reservoir to

be a maximum of 5 Parts Per Million (ppm) or a conduc-

tivity of less than 10 Micro Siemens (µs/cm). RPI’s Water

Quality Tester displays its readings in “Parts Per Million”

(ppm) and will automatically compensate for temperature

variations.

MAX

LEVEL

FIGURE 2.11

Water Quality Tester (RPI Part #RPT820)

INSTRUCTIONS

STEP #1 - Remove cap.

STEP #2 - Turn Water Quality Tester on (slide switch on

top of meter to the “ON” position). See Figure 2.11.

STEP #3 - Rinse sensing probes (see Figure 2.11) in dis-

tilled water by submersing and stirring gently.

STEP #4 - Immerse Tester in a water sample without ex-

ceeding the max level line and without bottoming out the

meter. Stir gently and wait for the reading to stabilize.

STEP #5 - The reading should be ≤5 ppm.

BATTERIES

- Expected battery life should be approxi-

mately 150 hours. Batteries should be replaced when the

display will not turn on or fades. The Tester uses (4) 1.5V

coin cells (Type LR44 or 357).

2.12 – CALIBRATION SOLUTION

(RPI PART #RPS821)

CALIBRATION –

Check calibration of the Water Quality

Tester (RPI Part #RPT820) approximately every 4 months

using Calibration Solution (RPI Part #RPS821). Check cal-

ibration by immersing the Tester in a container of Calibra-

tion Solution (the solution is supplied in a single use pouch

and can serve as the container - see Figure 2.12) without

exceeding the max level line and without bottoming out

the meter. Stir gently and wait for the reading to stabilize.

The Calibration Solution is certified traceable to NIST Stan-

dard Reference Material Potassium Chloride (7447-40-7)

and will provide a reading on the Tester of 800 ppm when

tested at room temperature (77°F). Consult temperature

chart on Calibration Solution pouch for ppm values vs.

temperature condition. MSDS sheet available on the RPI

website (www.rpiparts.com).

If calibration reading is outside of the solution’s rated ppm

value, adjust Calibration Trimmer by inserting screwdriver

(supplied with Tester) through hole in the side of Tester and

adjust potentiometer until the value matches the specified

ppm value from the chart on the pouch (see Figure 2.12).

FIGURE 2.12

TIP - Check calibration by

immersing the Tester in a

container of Calibration Solu-

tion (the solution is supplied

in a single use pouch and

can serve as the container).

TIP - If calibration reading is outside of

the solution’s rated ppm value, adjust

Calibration Trimmer by inserting screw-

driver (supplied with Tester) through hole

in the side of Tester and adjust poten-

tiometer until the value matches the

specified ppm value from the chart on

the pouch.

Screwdriver

Temperature Chart

Liquid

Crystal

Display

ON/OFF

Switch

Minimum

Immersion

Level

Sensing

Probes

Pocket

Clip

Calibration

Trimmer

Maximum

Immersion

Level

Battery

Compartment

Water Quality Tester

(RPI Part #RPT820)

Water Quality Tester

(RPI Part #RPT820)

Calibration Solution

(RPI Part #RPS821)

Calibration Solution

(RPI Part #RPS821)

FRONT BACK

Calibration

Trimmer

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 28 29

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