Details
A good test kit will should be able to detect and show you the following compounds:
- Ammonia
- Nitrite
- Nitrate
The Sensafe eXact® Micro 7+ Test Kit detects and shows you:
- Ammonia
- Nitrite
- Nitrate
- pH
- Free Chlorine
- Total Chlorine
- Total Alkalinity
- Calcium Hardness
- Copper
This test kit offers simplicity in its design. With the Sensafe eXact® 7+ Micro test kit, there is no guesswork to determine the parameters in your Koi pond. The digital readout lets you know the precise conditions that are in your pond water.
More Information
- Accuracy Tips
- Meter Messages
- Built In Cell Info
- Battery Installation
- Warranty
- Transmission Test Procedure
- Instruction Manual PDF
eXact® Micro 7+ Meter Specifications
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Sensafe eXact Micro 7+ Test Kit Gallery
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We offer a "Green" Alternative
eXact® Strip Micro 7+ has been designed to offer the user a more “Green” and cost-effective alternative to testing. Instead of using a 10ml water sample, eXact® Strip Micro 7+ uses a 4ml water sample, which uses up to 60% less chemical per test. The accuracy of the meter is maintained by designing the photo cell with a 20mm pathlength.
| Menu | Tests for | Range | Resolution | +/- Accuracy |
|---|---|---|---|---|
| CL1 |
Free Chlorine (DPD-1) & Total Chlorine (DPD-3) |
0.00 - 11.0 ppm |
0.01 (0.00 - 5.99 ppm) (6.0 - 11.0 ppm) |
0.02 0.1, or 10% |
| PH2 | pH | 6.2-8.4 pH | 0.1 | 0.3 |
| BR3 | Bromine (DPD-1) | 0.00-9.0 ppm |
0.01 (0.00 - 1.99 ppm) (3.0 - 9.0 ppm) |
0.03 0.1, or 4% |
| AL4 | Total Alkalinity | 20-180 ppm | 1 | 25 |
| CA5 | Calcium as CaCO3 | 20-990 ppm | 10 | 20 or 7% |
| CU6 | Copper (Cu+2) | 0.00-8.0 ppm | 0.01 (0.00 - 2.99 ppm) | 0.02 |
| 0.1 (3.0 - 8.0 ppm) | 0.1 or 4% | |||
| TR7 | Transmission (29 other test parameters) | 99.9-0.01 %T | 0.1 (99.9 - 10.0 %T) | 0.1 |
| 0.01 (9.99 - 0.01 %T) | 0.01 |
About Your eXact® Micro 7+ Instrument
In order to save power, the meter is designed to turn off after 3 minutes (timed from the last button pressed). Should the meter turn off in the middle of a test, the last stored zero in the meter will remain valid when the meter is turned on again. Also, the test result is stored in memory for easy retrieval. The eXact® Micro 7+ meter is controlled by three buttons:
- ZERO/ON: When first pressed, this button turns the meter on. When the meter is on and this button is pressed, it zeroes the sample in the cell. Once the meter is zeroed, this zero value applies to all parameters and is stored and retained even when meter turns off. However, it is recommended that each new water sample analyzed is zeroed before testing, to maximize sensitivity and accuracy.
- MENU: With each press, the MENU button advances through the tests in the following sequence: CL1, PH2, BR3, AL4, CA5, CU6, TR7. Each test menu can store up to 20 results. To retrieve the stored results, go to the desired test using the MENU key. When the desired test is displayed, press and hold down the MENU key. Continue holding down the MENU key to scroll the stored results for that test, starting with the most recent result. The meter will display, from memory, the last 20 readings in sequence beginning with -20, which is the latest result, followed by -19, which is the 2nd latest result, etc; and finally -01, which is the oldest result retained. Only the last 20 readings are stored in each menu. This meter is able to store 140 results in memory (20 in each menu).
- READ: When pressed once, this button starts the timer for the parameter being tested. When pressed a second time the meter exits the timer and immediately prepares to colorimetrically measure the sample, and simultaneously stores the measurement in memory.
If the parameter being measured is below or above the detection range, the display will show “LO” (Under Range) or “HI” (Over Range), respectively. This feature is menu specific and does not apply to all parameters.
About The Accuracy / Calibration Of The Micro 7+ System
The algorithms in the software reflect the best correlation of the eXact® Micro 7+ Systems against the AWWA, US EPA , DIN, and ISO reference test methods for chlorine. Studies show that the eXact® Micro 7+ System repeatedly agrees with an EPA Compliant reference method greater than 99% (R2= 0.9912, 0 - 6.0 ppm - see page 36). The eXact® Micro 7+ Advanced Photometric System has been factory calibrated for your convenience. Customer calibration can be performed in the Transmission Menu. You can expect the fixed calibrations in the meter to be valid for the life of the meter because of the quality, Long-Life LED, the photo cell, and the software as written into the meter.
Compliance Verification for Free and Total Chlorine Testing
This DPD test system is accepted by most state health departments because this test is USEPA accepted for testing requirements for Free and Total Chlorine. The Micro 7+ meter uses a wavelength of 525nm; and the compliance requirement is that the colorimeter wavelength is between 490 and 530nm. The eXact® Strip Micro CL (DPD-1) uses the same reagents and proportions, and the resulting solution pH is maintained between 6.2 and 6.5 as specified by AWWA (American Water Works Association) method 4500-Cl G. It should be understood that the USEPA does not "approve" commercial DPD delivery systems such as reagent powder pillows, tablets, dispensers, or eXact® Strip DPD delivery devices. The eXact® Strip Micro CL (DPD-1) for Free Chlorine, and the eXact® Strip Micro CL (DPD-3) or the eXact® Strip Micro CL (DPD-4) for Total Chlorine meet your reportable testing requirements because the eXact® Strip Micro CL delivers the same chemicals in identical proportions (see table below); therefore, the system is compliant. Likewise, AWWA proportions are followed as required for Total Chlorine measurements using Potassium Iodide.
| Component (Free Chlorine) |
AWWA 4500-CI G |
eXact® DPD-1 |
| Anhydrous DPD sulfate | 1.5% | 1.5% |
| Anhydrous Na2HPO4 | 33.4% | 33.4% |
| Anhydrous KH2PO4NA2 | 64.0% | 64.0% |
| EDTA | 1.1% | 1.1% |
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