Measurement

Gauge Precision
(±1 std. deviation)
at 2240 kg/m3 (140 pcf)

Time (min)

Thickness

kg/m3

pcf

1

 

 

2.5 cm (1")

±16

±1.0

5.0 cm (2")

±10

±0.6

6.3 cm (2.5")

±8

±0.5

4

2.5 cm (1")

±8

±0.5

5.0 cm (2")

±5

±0.3

6.3 cm(2.5")

±4

±0.25

Depth of Measurement

25-100 mm, (1-4) inches

Calibration

Accuracy of Density Standards

±0.3%

Calibration Range

100-170 pcf (1600-2700 kg/m3) Density

Radiological

Gamma Source

8 ±1mCi Cesium-137

Troxler Drawing Number

TEL A-102112

Source Housing

Stainless Steel Encapsulation

Shielding

Tungsten and lead

Surface Dose Rates

5 mrem/hr max. top and sides of gauge; 15 mrem/hr max. bottom of gauge, gamma in shield position

Shipping Case

DOT 7A, Type A, Yellow II Label, 0.2 Transport Index

Sealed Source Approved for Domestic and International shipment

Cs-137, Special Form Certificate GB:SFC 140

Electrical

Stored Energy

30 watt-hours

Battery Recharge Time

14-16 hours (automatic cutoff)

Battery Recharge

110/220 V ac, 50-60 Hz or 12-14 V dc

Power Consumption

0.16 watt-hours

Readout

4 x 16 alpha-numeric liquid crystal display

Notes:
Battery packs are fully protected against overcharge and overdischarge. Provided with RS232 interface. Capable of operation with D size alkaline batteries for emergency use.

Mechanical

Case

Colored polycarbonate top shell with aluminum cast base

Operating Temp.

Ambient: -10 to 70ºC (14 to 158ºF)
Surface: 175ºC (350ºF)

Storage Temp.

-55 to 85ºC (-70 to 185ºF)

Gauge Size w/o handles

18.6 x 9.1 x 6.2 inches
(472 x 231 x 158 mm)

Gauge Height w/handles

9.5 inches (240 mm)

Weight

29.7 lbs. (13.5 kg)

Shipping Weight

90 lbs. (40.8 kg) w/ case

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Model 4640-B: Specifications

Model 4640-B Specifications