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HM Digital TDS メーター用校正液 342ppm 、90ml ボトル、塩化ナトリウム水溶液 ( NaCl )

HM Digital TDS メーター用校正液 342ppm 、90ml ボトル、塩化ナトリウム水溶液 ( NaCl )

Q: What is the shelf life?

Room temp. indefinitely. You will use it up before it gets really old.

Q: Whats the ppm at 19 degree Celsius? or 18.6? The box only states the ppm of the solution at 25C which is is 342 ppm

I doubt the actual PPM is much different between 19C and 25C. TDS/EC meters are typically sensitive to temperature and some include a temperature sensor for automatic correction. Others that don't automatically compensate for temperature and may need a "look-up" to correct during the calibration. In either case, the reference solution concentration probably doesn't change much as a function of temperature. Good luck with your TDS calibration!

Q: Can you mix this with 1000 solution to get 680ish ppm mix?

All you need to do to create a 680 ppm test solution is add .068 grams of table salt to 100ml of distilled or RODI water and dissolve and viola you have a 680 ppm test solution.

Q: What screwdriver is used to calibrate this meter? The little ones I've used don't turn anything.

Usually there is a small area on the back of the meter that takes a tiny Phillips head screwdriver. You would put the meter in the solution and then use the screwdriver to make sure it's reading 342.

Product ID: 734408930

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Details

Brand
HM Digital
Item Weight
100 Grams
Item Volume
90 Milliliters
Item Form
Liquid
UPC
891144000014

🔧Compatible with KCL-5 & 700US meters

🧴90ml leak-proof HDPE bottle

⚗️342ppm precise calibration

Frequently Bought Together

HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue

HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

HM Digital 1000ppm TDS Calibration Solution

Description

⚡ Calibrate like a pro — never second-guess your water quality again!

UNIVERSAL COMPATIBILITY - Works seamlessly with popular models like KCL-5 (362ppm) and 700US meters.
COMPACT LEAK PROOF DESIGN - 90ml HDPE bottle with a secure lid for mess-free, on-the-go calibration.
ESSENTIAL FOR WATER QUALITY PROS - A must-have for professionals demanding precise TDS measurements every time.
RELIABLE SODIUM CHLORIDE FORMULA - Trusted NaCl reagent guarantees consistent and repeatable calibration results.
PRECISION CALIBRATED FOR ACCURACY - Ensure your TDS meter reads flawlessly with a stable 342ppm NaCl solution at 25°C.

This 90ml HDPE bottle contains a 342ppm sodium chloride (NaCl) calibration solution designed for precise TDS meter calibration at 25°C. Leak-proof and compatible with KCL-5 and 700US meters, it ensures reliable, repeatable water quality measurements for professionals.

Specifications

Manufacturer	HM Digital, Inc.
UPC	891144000014
Global Trade Identification Number	00891144000014
Part Number	C342
Item Weight	3.53 ounces
Product Dimensions	1.75 x 1.75 x 3 inches
Item model number	C-342
Is Discontinued By Manufacturer	No
Size	342ppm, 90 ml Capacity
Color	Transparent/Blue
Item Package Quantity	1
Number Of Pieces	1
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

What is the shelf life?

Whats the ppm at 19 degree Celsius? or 18.6? The box only states the ppm of the solution at 25C which is is 342 ppm

Can you mix this with 1000 solution to get 680ish ppm mix?

What screwdriver is used to calibrate this meter? The little ones I've used don't turn anything.

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