Water Quality & Instrumentation - Page 585

Manufacturer: Hanna Instruments Brand: Hanna Instruments Model: HI 758

Calcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter, depending on its source and treatment. Calcium is necessary in plant and animal nutrition since it is an essential constituent of bones, shells and plant structures. Calcium in water as carbonate is one of the primary components of water hardness which can cause pipe or tube scaling. The HI 758 Calcium Checker HC is extremely simple to use. First, zero the instrument by adding Reagent A, deionized water and 0.1 mL of sample into the vial. Insert into the HI 758 and press the button. Next, remove the vial and add Reagent B and shake to dissolve. Reinsert into the Checker HC and press the button to read the calcium concentration in ppm on the display. Use for quick and accurate on the spot analysis. Single button operation: zero and measure. Range: 200 to 600 ppm. Resolution: 1 ppm. Accuracy at 25 degree C: +/-6% of reading. Light Source: light emitting diode at 610 nm. Light Detector: Silicon Photocell. Environment: 0 to 50 degree C (32 to 122 degree F); max 95% RH non-condensing. Battery Type: (1) 1.5V AAA. Auto-off: after 10 minutes of non-use. Dimensions: 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5"). Method: adaptation of the zincon method.

Manufacturer: UNICO Brand: Unico

UNICO Square Cuvettes, Optical Glass, 4 Mm Width 1.0 Ml S-90-350G

Manufacturer: Dwyer Instruments, Inc. Brand: Dwyer

The Rate-Master® Flowmeter line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use. The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background. All Rate-Master® flowmeter bodies are injection molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin. The result is accurate and repeatable readings. The single piece plastic body is mounted to a stainless steel back bone into which pipe thread inserts are welded to absorb piping torque. The Rate-Master® flowmeter can be neatly through-panel mounted to keep flow tube centers in the same plane as the panel surface or surface mounted on the panel by means of tapped holes in the backbone. When through-panel mounted, the bezel automatically positions the instrument at the correct depth in the panel cutout. Surface mounted units can also be held in place by the piping. All mounting hardware plus installation and operating instructions are included. (Picture shows standard range).

Manufacturer: Hanna Instruments Brand: Hanna Instruments Model: HI710139

Rugged carrying case with thermoformed tray. Fit for HI 93703 HANNA portable meters. Measures 12-19/64" length by 9-51/64" width by 1-51/54" height.

Manufacturer: Pomona Electronics Brand: Pomona Electronics

Test Leads STACKING BANANA P

Manufacturer: COLE-PARMER Brand: Cole-Parmer

What's Included: PTFE cover. % Transmission is over 80% at 365nm Standard-size cuvettes are the type most often used for routine laboratory testing Cuvettes include chemical resistant, PTFE covers Cuvettes have two clear sides and two frosted sides

Manufacturer: The Ambu Incorporated Brand: Ambu Incorporated Model: 82002J

72000-S25 PT# 72000-S25- Electrode EKG/ECG Neuroline Foam/ Gel 25/Pk by, Ambu Inc

Manufacturer: Thermco Brand: THERMCO

SPECIFIC GRAVITY HYDROMETERS, COMBINED FORM W/THERMOMETER +20 to 120F, 380mm 1.800/2.000 x 0.002

Manufacturer: Thermco Brand: THERMCO

SPECIFIC GRAVITY HYDROMETERS, COMBINED FORM W/THERMOMETER +20 to 120F, 380mm 1.000/1.220 x 0.002

Manufacturer: Thermco Brand: THERMCO

API, COMBINED HYDROMETERS, +20/130F - 7.5" 10/30