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Ambient temperature: 5 to 40°C (41 - 104°F)
Fluid type:
Fluid temperature:
Accuracy:
Construction materials
Case:
Flow block:
Seals:
Battery Details
PP3 9 volt Alkaline (IEC6LR61, ANSI/NEDA 1604A)
Dimensions and Weight
Model
DHT401
HT302/402
DHT302/402
DHM403
DHT801
HT602/802
DHT602/802
DHM803
Fluid viscosity
The performance of the tester can be affected by the viscosity of the fluid measured. Our testers
are calibrated at a mean viscosity of 21 cSt. The shaded area of the table shows the range of
viscosities that can be measured by a tester with standard calibration with minimal effect on the
accuracy (less that ± 1% FS).
Temp °C
ISO 15, 22, 32, 46 and 68 based on typical figures for the Esso Nuto range of
HM oils. ISO 37 based on Shell Tellus HM oil.
4
General Specification for all models
Hydraulic oil
DHT & HT - 0 to 120°C (32 - 250°F)
DHM - 0 to 105°C (32 - 220°F)
see model specifications
Painted mild steel
High tensile aluminium
Viton as standard - EP seals on request
Height
Width
240 mm
200 mm
9.45 inches
7.87 inches
245 mm
225 mm
9.65 inches
8.86 inches
Table showing kinematic viscosity (cSt) of different mineral
oils at specific temperatures
ISO15
ISO22
0
85.9
165.6
10
49.0
87.0
20
30.4
50.5
30
20.1
31.6
40
14.0
21.0
50
10.2
14.7
60
7.7
10.7
70
6.0
8.1
80
4.8
6.4
90
4.0
5.2
100
3.3
4.3
Depth
Weight
200 mm
6.5 kg
7.87 inches
14.33 lbs
225 mm
10 kg
8.86 inches
22 lbs
Fluid type
ISO32
ISO37
ISO46
309.3
449.9
527.6
150.8
204.7
244.9
82.2
105.5
127.9
48.8
59.8
73.1
31.0
36.6
44.9
20.8
23.9
29.4
14.7
16.5
20.2
10.9
12.0
14.6
8.4
9.1
11.1
6.6
7.2
8.7
5.5
6.0
7.1
ISO68
894.3
393.3
196.1
107.7
63.9
40.5
27.2
19.2
14.3
11.1
8.9
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