VH1 & VH2: Houillon Viscometers

State-of-the-Art Solution

With an extremely high throughput of 60s average run time and small sample size of less than 1 ml, the ISL VH1 & VH2 Houillon viscometers automatically determine the kinematic viscosity of lubricating oils, used oils, fuels, polymers and similar materials in full compliance with ASTM D7279.

Product Overview Key Features Specs Consumables Documentation Related Resources

Product Overview

Using a “Houillon” capillary tube and in full compliance with ASTM D7279, ISL’s VH Series Viscometers automatically determine kinematic viscosity of lubricating oils, used oils, fuels, polymers, and similar materials over a wide viscosity range. Initially developed for lubricant blending facilities, research laboratories, and used oil monitoring where small sample size and quick results were required, the ISL VH viscometer offers exceptional performance, providing results in 60 seconds using less than 1 ml of sample.

The VH series of viscometers include:

Model VH1: integrates a single solvent capacity for tube cleaning
Model VH2: accommodates two solvents, offering added flexibility in solvent selection for efficient tube cleaning and drying and withstands the use of aggressive solvents

Key Features

Modular design with ultimate configuration flexibility enables up to 16 simultaneous test runs

High throughput with complete results in minutes; can complete up to 75 tests per hour

Easy constant calibration with reference fluids

Reduce waste with small sample size; uses less than 1 ml

Specs

Test Methods

Standard Test Method: ASTM D7279

Correlation: ASTM D445; ISO 3104; ISO 3105; IP71; IP 226; DIN51550; EN3104

OPERATION

Analytical principle: Kinematic Viscosity by Glass Capillary (Houillon-Type)

Sample Volume: Less than 1ml

Sample Induction: Manual, by user pipettes sample, directly into the tube

Cycle Time and Throughput: Less than 10mn per test (typical, incl. cleaning), 4 test runs in simultaneously at same temperature

Capillaries: Houillon type capillary tubes as per standard D7279

Meniscus Detection/Timing: Optical Detection System

Bath Temperature: Stability: ±0.01°C

Bath Media: Silicone oil, 5 liters.

Bath Cabinet/Chassis : The VH1/2 glass bathes come with transparent plastic heat-touch protection.

VH1: all wetted material are made of glass, stainless steel and Viton, therefore can withstand normal cleaning solvents

VH2: all wetted material are made of glass, stainless steel and brass, Teflon or
Kalrez, therefore can withstand aggressive solvents.

Cleaning /Drying Mode: Automated under vacuum (not pressure) with programmable cycle parameters

VH1: one solvent

VH2: two solvents, resistant to aggressive solvents

APPLICATION RANGE

Viscosity range: Standard Houillon: 2 to 2000 Cst (mm²/s) at 40°C (68°F)

Temperature range: from +20° to +120°C (60° to 248°F), user programmable

DATA MANAGEMENT & INTERFACES

Keyboard and Display: Real-time display on PC

POWER REQUIREMENTS

Voltage: 230 or 115V

Frequency: 50/60 Hz

Power: 600 W

Vacuum pump : For solvent removal

Cooling water: For low temperature bath (not included in instrument delivery package).

ENVIRONMENTAL CONDITIONS

Operating temperature: 15 to 35°C (50 to 104°F)

Humidity:
Relative humidity: up to 80% at 35°C (not condensing)

Storage temperature: -20 to 40°C (-4 to 104°F).

PHYSICAL SPECS

Dimensions (W x D x H): VH1: 300 x 450 x 820 mm (12 x 18 x 33 inch)

VH2: 300 x 450 x 870 mm (12 x 18 x 35 inch)

Vacuum kit: 500 x 270 x 760 mm

Weight: VH1: 28kg (62 lbs) without bath liquid

VH2: 35kg (77 lbs) without bath liquid

Vacuum kit: 27kg (59 lbs)

QUALITY AND SAFETY FEATURES

Calibration and Diagnostics: Tubes calibration performed through the VH-PC software program

Bath Safety: Bath over-temperature protection (factory set at 130°C, can be user programmable between 20 and 140°C). VH1/2 Bathes have hot surface protection provided by outer cover tube.

Consumables

H00517 Fuse set, VHI, 220 V H005301 SET OF FUSES/VH1/110V L00508 Thermometer, ASTM-120C L00509 Thermometer, ASTM-121C M004150 O-Ring, silicon, PTFE, 12 X 6 X 5 M010119 O-ring, Viton, od 12, id 5.7, th5 M01056 SET OF 10 VITON GASKET 5.7X1.9 M01080 Gasket, flat, four holes, VH1 M01702 Pipette, micro, adjustable, 0/250µL M01705 Piston, pipette, micro, 250µL, 200 pc U01151 5KG SILICON OIL 47V100 for Houillon (Bath 100°C) U01152 5KG SILICON OIL 47V50 for Houillon (Bath 40°C)

Documentation

Title	Description	PDF
Brochure	Houillon Viscometers Brochure	Download
Safety Data Sheet	CRM S20 SDS	Download
Safety Data Sheet	CRM S60 N35 SDS	Download
Safety Data Sheet	CRM S3, S6, D5, D10 SDS	Download
Safety Data Sheet	High Quality Viscosity CRM SDS	Download