Milwaukee MI405 PRO Ammonia Medium Range Photometer

Specifications

Measurement Procedure

1. Turn the meter on by pressing the [ON/OFF button].
2. When the LCD displays "- - -", the meter is ready.
3. Fill the cuvet with 10 mL of sample, up to the mark, and replace the cap.
4. Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
5. Press [ZERO button] and "SIP" will blink on the display.
6. After a few seconds the display will show "-0.0-". The meter is now zeroed and ready for measurement.
7. Remove the cuvet. Open it.
8. Add 4 drops of NH3-1 (10 drops in case of seawater analysis) and swirl gently.
9. Add 4 drops of NH3-2 (10 drops in case of seawater analysis). Replace the cap and swirl gently.
10. Immediately reinsert the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
11. Press and hold [READ button] for 3 seconds and the display will show the countdown prior to the measurement. Alternatively, wait for 3 minutes and 30 seconds and just press [READ button]. In both cases "SIP" will blink during measurement.
12. The instrument directly displays the concentration in mg/L of ammonia nitrogen (NH3-N). To convert the reading to mg/L of ammonia (NH3), multiply by a factor of 1.216.

On Sample Reading

• "-SA-": Too much light for the sample measurement. Check if the correct sample cuvet is inserted.
• "Inv": The sample and the zero cuvet are inverted.
• "ZErO": A zero reading was not taken. Follow the measurement procedure for zeroing the meter.
• Under range: A blinking "0.00" indicates that the sample absorbs less light than the zero reference. Check the procedure and ensure the same cuvet is used for reference (zero) and measurement.
• Over range: A flashing value of the maximum concentration indicates an over range condition. The sample concentration is beyond the programmed range; dilute the sample and re-run the test.

Battery Replacement

Battery replacement must only take place in a non-hazardous environment. Simply rotate the battery cover on the back of the meter. Detach the battery from the terminals and attach a fresh 9V battery while paying attention to the correct polarity. Insert the battery and replace the cover.

Accessories

• MI505-100: Ammonia MR Reagent (100 tests)
• MI0001: Glass cuvets (2 pcs)
• MI0002: Caps for cuvets (2 pcs)
• MI0003: Stoppers for cuvets (2 pcs)
• MI0004: Tissue for wiping cuvets (4 pcs)
• MI0005: 9V battery (1 pc)

Certification

Milwaukee Instruments conform to the CE European Directives. Disposal of Electrical & Electronic Equipment: Do not treat this product as household waste. Hand it over to the appropriate collection point for the recycling of electrical and electronic equipment. Disposal of waste batteries: This product contains batteries. Do not dispose of them with other household waste. Hand them over to the appropriate collection point for recycling. Please note: proper product and battery disposal prevents potential negative consequences for human health and the environment. For detailed information, contact your local household waste disposal service or go to www.milwaukeeinstruments.com (USA & CAN) or www.milwaukeeinst.com.

Recommendation

Before using this product, make sure it is entirely suitable for your specific application and for the environment in which it is used. Any modification introduced by the user to the supplied equipment may compromise the meter's performance. For your and the meter's safety, do not use or store the meter in a hazardous environment. To avoid damage or burn, do not perform any measurement in microwave ovens.

Warranty

These instruments are warranted against defects in materials and manufacturing for a period of 2 years from the date of purchase. This warranty is limited to repair or free of charge replacement if the instrument cannot be repaired. Damage due to accidents, misuse, tampering, or lack of prescribed maintenance is not covered by warranty. If service is required, contact your local Milwaukee Instruments Technical Service. If the repair is not covered by the warranty, you will be notified of the charges incurred. When shipping any meter, make sure it is properly packaged for complete protection.

Guide to Display Codes

• Startup display: Appears for 1 second each time the instrument is turned on.
• "- - -": Indicates the meter is in a ready state and zeroing can be performed.
• "SIP": Sampling In Progress. Flashing "SIP" prompt appears each time the meter is performing a measurement.
• "-0.0-": The meter is in a zeroed state and measurement can be performed.
• "BAT": Blinking "BAT" indicates that the battery voltage is getting low and the battery needs to be replaced.
• "-bA-": The battery is dead and must be replaced. Once this indication is displayed, the meter will lock up. Change the battery and restart the meter.
• "Conf": The meter has lost its configuration. Contact your dealer or the nearest Milwaukee Customer Service Center.

Error Messages

On Zero Reading

• Blinking "-0.0-": Indicates that the zeroing procedure failed due to a low signal-to-noise ratio. In this case, press [ZERO button] again.

Other Errors

• "no L": The instrument cannot adjust the light level. Please check that the sample does not contain any debris.
• "L Lo": There is not enough light to perform a measurement. Please check the preparation of the zero cuvet.
• "L Hi": There is too much light to perform a measurement. Please check the preparation of the zero cuvet.