product manual H-1390, H-1392, H-1394 H-1390_92_94_man_07.
Introduction Product Description Humboldt Deluxe Water Baths provide Microprocessor-based temperature control throughout the unit’s range from ambient to 180°F (82°C), with an accuracy of ±0.1% of input span. All models are fully-insulated and models H-1390 and H-1394 include a magnetic stirrer which assures constant water temperature throughout bath. Model H-1392 does not have a magnetic circulator.
Product Description This product is intended for use only in accordance with the directions and specifications contained in this User Guide. While Humboldt Deluxe Water Baths can be used for many uses within labs, they were designed specifically for use in providing a consistent temperature bath for storing asphalt Marshall specimens in accordance with ASTM D6926, AASHTO T245 and British Standard BS 598: Part 107.
Figure #1 Figure #1 Once the spin bar and stirrer plate are in position, carefully place the shelf into the unit without disrupting the placement of the spin bar. Slowly fill the bath with water. The water level should be approximately 1" from the top when specimens are placed in the bath. WARNING DO NOT RUN UNIT DRY. UNIT SHOULD NEVER BE USED WITH LESS THAN 2 INCHES OF WATER.
Operation Once you have completed set-up and have filled the water bath with water. You are ready to operate the bath. To turn the unit on, Push the POWER switch down to turn it on. The heating indicator to the left of the POWER switch will illuminate and show you the current temperature of the bath on top of the controller in red and the current set point, on the bottom in green. Figure #2 At this point you can also turn on the spin bar by pushing down on the STIR switch.
Switching from °F to °C Humboldt 120V Deluxe Water Baths come set to °F and 220V models come set to °C for the controller. If you desire to change this setting, hold the up and down arrow buttons in at the same time and hold for 3 seconds.
Power Cord Your bath is fitted with a molded vinyl grounding plug. The cord is made of three conductors: ( American color coding): 120V Models Green = Ground (Earth) White = Cold (neutral) Black = Hot (Live) 220V Models Green = Ground (Earth) Blue = Cold (neutral) Brown = Hot (Live) On/Off Circuit Breaker Appliance inlet protection class 1, circuit breaker type TA45 2-pole, Line filter with quick-connect terminals. UL license.
Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions of Sale. The purchaser is responsible for the transportation charges. Humboldt Mfg. Co.
