VF-3000 Portable Optical Single &
Two-Color Ratio Pyrometer

The VF-3000 optical pyrometer can be used to measure temperatures in a great variety of applications above 400ºC (750ºF). Small targets at long distances can be viewed with through-lens target viewfinder.

Main features of the VF-3000 pyometer:

Wide temperature range: 400 - 3000ºC (750 - 5400ºF)
Dual mode operation: two-color ratio or single-color brightness
Compact construction for reliability in adverse environments
High quality optics with fixed focus recessed lens and covered eyepiece
Switchable optical filter for views of bright or high intensity objects
Narrow measurement field-of-view permits isolation of distant objects
0.2 second response time with built-in peak picking, assures accurate results
Two digital displays: internal and external 4-digit LCD (with sample hold)
Small frontal area minimizes front heat pickup (which can degrade accuracy)

Specifications:

Sensing element

Si / InGaAs

Measuring wavelength

0.9 / 1.55 µm

Measuring range

600 - 2000ºC (2-color)
400 - 3000ºC (single-color)

Accuracy*

Lower than 1000ºC: ±6ºC
1000 to 1500ºC: ±0.6% of reading
1500 to 2000ºC: ±1.2% of reading
Higher than 2000ºC: ±2.4% of reading

Repeatability

±1ºC

Resolution

1ºC

Response time

0.2 second

Emissivity adjustment

0.800 to 1.200 (two-colors)
0.100 to 1.900 (single-color)

Targeting

Through the lens viewfinder

Measuring Modes

1	Maximum, minimum, and average value
2	Peak, delay (signal modulation)
3	Maximum 100 data memory function
4	4-digit LCD display in viewfinder and external display

Other functions

Auto-power-off, automatic backlight, continuous measurement, ºC/ºF selection, battery check, high / low alarms

Optical system

Fixed focus type

Field-of-View

ø20/4000mm (D:S=200:1)

Ambient temperature

0 to 50ºC

Stability (Temperature drift)

Lower than 1000ºC: 0.2ºC/ºC
Higher than 1000ºC: 0.02%/ºC of reading

Stability (In the test environment required by EMC directives)

±15ºC

Power supply

2 AA alkaline batteries (about 30 hours for continuous measurement)

Lens diameter

20mm

Casing material

ABS resin

Dimensions & weight

148 x 100 x 70mm (5.8" x 4" x 2.8") & 350g (13 oz)

*Reference operating conditions: at emissivity=1, 23ºC±5ºC, relative humidity: 35 to 75% RH

VF-3000 Portable Optical Single & Two-Color Ratio Pyrometer

Main features of the VF-3000 pyometer:

Specifications:

VF-3000 Portable Optical Single &
Two-Color Ratio Pyrometer