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KV3000/KV4000
Kinematic Viscosity Baths
New constant temperature bath series with advanced temperature control
circuitry and integrated timing features for convenient, accurate glass
capillary viscometry determinations. Microprocessor PID circuitry assures
precise, reliable temperature control within ASTM specified tolerances
throughout the operating range of the bath. Simple push-button controls and
dual digital displays permit easy setting and monitoring of bath temperature.
Two place calibration offset capability is provided. Baths accommodate seven
glass capillary viscometers of various types. Viewing the viscometers is made
easy by glare-free fluorescent illumination inside the bath and a baffle that
provides a background for easy viewing. Temperature control uniformity is
assured by means of motorized stirrer which provides complete circulation
without turbulence. Connection of the built-in cooling coil to tap water or a
recirculating water chiller facilitates temperature control at ambient or
below ambient temperatures. Communications software (RS232, etc.)
ramp-to-set, and other enhanced features are available at additional cost.
Contact your Koehler Customer Service representative for more information.
Integrated Timing Features — KV3000 incorporates seven digital timers on
the front control panel for convenient timing and monitoring of the efflux
interval for each viscometer. On KV4000, the user can enter the viscosity
constant for each viscometer on the front LCD control/display, and then get
the test result in both efflux time and viscosity units automatically after
stopping each timer. All timing functions on both models are displayed in
0.01 second resolution and are accurate within 0.01%.
Bath Construction and Safety Features — Bath chamber is a clear Pyrex
vessel enclosed in a polyester-epoxy finished steel housing. Top working
surface has seven 2" (51mm) viscometer ports and is constructed of
stainless steel for easy cleaning. Front viewing window assures safe,
distortion-free viewing. Microprocessor temperature controller incorporates
safety circuitry that interrupts power to the heaters in the event of an
overtemperature condition or disconnection of the primary probe. For added
safety, a redundant adjustable controller with separate sensor probe
interrupts power if an overtemperature situation occurs. An integrated
low-liquid sensor prevents operation of the bath if the bath liquid is not
filled to the proper level, and cuts off power should it fall below during
operation. Both overtemperature and low liquid level circuits will latch and
prevent further operation of the bath until the fault is removed. Bath rests
on adjustable leveling feet. All electronics are mounted on a sliding tray
for easy access. Includes thermometer holder and seven plastic port covers
with handles.
Specifications
Conforms to: ASTM D445, D2170, D6074, D6158; IP 71, 319; ISO 3104; DIN
51550; FTM 791-305
Temperature Range: ambient to 150°C (302°F); –20°C to 150°C (–4°F to 302°F)
with an external chiller
Temperature Display: 0.1°C/0.1°F resolution, calibrate to 0.01°C/0.01°F
Temperature Control
Accuracy and Uniformity: Exceeds ASTM requirements throughout the operating
range
Integrated Timing:
KV3000 — Seven individual start/stop timers with displays to 0.01 seconds, accurate
to within 0.01%
KV4000 — Seven start/stop buttons with integrated LCD display, retention of
viscometer constant, automatic calculation and display in viscosity units or
seconds to 0.1 seconds accurate to within 0.01%.
Communication: RS232 port included with KV4000 (optional for KV3000)
Viscometer Ports: Seven round 2" (51mm) ports
Bath Medium: Water or suitable heat transfer fluid
Included Accessories
Port Covers (7)
Thermometer holder
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