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Handheld Resistivity and Conductivity Tester
Resistivity and Conductivity Tester
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- Compact and Lightweight
- Single Button Operation
- Automatic Calibration
- Easy Electrode Replacement
CDH-93 Model Options
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Measurement Type
Range
Accuracy
Supply Power
Features
The CDH-93 resistivity and conductivity meter uses advanced automatic frequency conversion and booster technology to keep the electrode constant the same in different solution strengths. It can meet measuring accuracy in the whole range of this electrode by using only the one-point calibration function. The result is the high performance and the lowest cost.
Specifications
Range
Conductivity: 5 to 50.0µ S/cm, 50 to 500µ S/cm, 0.5 to 5.00 mS/cm, 5.0 to 50.0 mS/cm
Resistivity: 2 to 20 M?-cm
TDS: 0 to 35.0 g/L
Salinity: 0 to 25.0 ppt
Temperature: 0 to 50°C (32 to 122°F)
Accuracy:
Conductivity/Resistivity: ±1.0% full scale temperature; ±0.5°C
ATC Range: 0 to 50°C (32 to 122°F)
Calibration: One-point calibration (1413µ S/cm)
Power: Two (2) CR2032 3V lithium ion batteries (included)
IP Standard: Waterproof and dustproof meets NEMA 6 (IP57) standard
Auto Power Off: After 10 minutes (override available)
Dimensions:
Meter: 148 L × 29 W × 14 mm D (5.82 x 1.14 x 0.55")
Carrying Case: 168 L × 96 W × 28 mm D (6.61 x 3.78 x 1.10")
Weight with Case: 178 g (6.28 oz)
Specifications
Range
Conductivity: 5 to 50.0µ S/cm, 50 to 500µ S/cm, 0.5 to 5.00 mS/cm, 5.0 to 50.0 mS/cm
Resistivity: 2 to 20 M?-cm
TDS: 0 to 35.0 g/L
Salinity: 0 to 25.0 ppt
Temperature: 0 to 50°C (32 to 122°F)
Accuracy:
Conductivity/Resistivity: ±1.0% full scale temperature; ±0.5°C
ATC Range: 0 to 50°C (32 to 122°F)
Calibration: One-point calibration (1413µ S/cm)
Power: Two (2) CR2032 3V lithium ion batteries (included)
IP Standard: Waterproof and dustproof meets NEMA 6 (IP57) standard
Auto Power Off: After 10 minutes (override available)
Dimensions:
Meter: 148 L × 29 W × 14 mm D (5.82 x 1.14 x 0.55")
Carrying Case: 168 L × 96 W × 28 mm D (6.61 x 3.78 x 1.10")
Weight with Case: 178 g (6.28 oz)
Rated 1 out of
5
by
analytical chemist from
Nonsensical ranges
The advertised range for this probe is 5 uS/cm - 50 mS/cm, which converts to 20 - 20000 Ohm*cm (0.020 - 200 KOhm*cm), yet they claim it has a resistivity range of 0-20 MOhm*cm. This would require conductivity readings to go as low as 0.05 uS/cm. In practice, I can't seem to get a single resistivity reading higher than 3 KOhm*cm. I am working with deionized water that should be around 18 MOhm*cm. This is completely unacceptable equipment for the purposes I needed and if you also need to confirm deionized water purity, do not waste your money on this.
Date published: 2023-01-24
Rated 4 out of
5
by
samm from
Good Tool. Poor instructions. So-so support.
This will be a good tool for the intended purposes. It is easy to use and appears accurate and durable, but the documentation that comes with it is very meager. I called with a few questions. One was answered other wasn't. Didn't receive a return call or a response to an online support question submitted as a follow up.
Date published: 2017-05-02
Rated 5 out of
5
by
Mack Harris from
Wire EDM
I use this tester to verify my water conductivity for wire EDM it easy to use and fast
Date published: 2021-02-16
Can you tell me the diameter of the probe head and the length of the 'neck' of the instrument? I want to know if this probe is suitable for the containers I intend to take measurements in.
Thank you for your inquiry! The diameter of the head is 10mm and the length of the neck is 30mm.
Date published: 2021-06-30
What is the resolution of the resistivity? Does it read at increments of 1 M ohms? 0.5 M ohms? What is the resolution of the conductivity?
In regard to your inquiry, the CDH-93 hand held conductivity tester has a 3 digit display and the resolution will either be 0.1 or 0.01 depending on the microSiemen range.
Date published: 2020-12-25
My sample I need to test, should I dilute it? The product is 'syrup' thick.
Thank you for your inquiry. Please contact our Flow Engineering department with this request as they will need some more information about your application before advising whether dilution is necessary. You can email them at flow@omega.com.
Date published: 2019-09-18
Does this unit require a solution to conduct its single point calibration, if so what solution is required and how can it be purchased? Can this unit be purchased with a NIST traceable calibration certificate for its full resistivity range?
Thank you for your inquiry! Unfortunately, the unit cannot be purchased with a NIST traceable certificate. For the calibration 1413 microsiemens per centimeter solution is used. The part number for this solution is CDSA-1413.
Date published: 2021-10-29
Student is wanting to use to check resistivity and conductivity of De-ionised Water.. is the resolution of this instrument suitable?
Thank you for your inquiry about the conductivity/resistivity meter. It will be able to measure up to 2 MOhm resistance for DI Water.
Date published: 2022-06-14
Our process DI water is 17-18 MOhm but when tested with this meter it reads <2 MOhm. Is it a bad unit or a missing a step for measurement? Should be fairly straightforward.
Thank you for your inquiry. Unfortunately, the CDH-93 meter cannot measure that low of conductivity. At 18 MOhms, it is the equivalent of 0.056 microSiemen or micromho.
Date published: 2024-08-13
We have gotten resistivity readings below 2.0 (e.g. 0.5, 0.6, 1.6). Should we interpret those readings as less than 2.0 and not assume they are quantitative? 2. Our meter arrived with liquid in the electrode cap. What liquid should be in the cap?
Thank you for your inquiry. Yes, anything less than 2.0 will not be accurate or be within the accuracy and the storage solution is 3M KCl.
Date published: 2020-12-09
Hi! Is the minimum resistivity 2 ohms or 2M ohms?
Hi,
Thank you for your question.
The minimum resistivity is 2 M ohms.
Date published: 2019-06-25
