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Ambient temperature: 5 to 40°C (41 - 104°F)
Fluid type:
Fluid temperature:
Accuracy:
EMC Environment:
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
DHM404
DHT801
HT602/802
DHT602/802
DHM804
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 using ISO32 hydraulic mineral oil to ISO11158
category HM. 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
Mineral oil to ISO 11158 category HM
(for other fluid types please contact Sales).
DHT & HT - 0 to 120°C (32 - 250°F)
DHM - 0 to 105°C (32 - 220°F)
see model specifications
This equipment is intended for use within industrial and residential
environments and does not suffer any degradation in operation when
subjected to test conditions according to requisite standards.
Painted mild steel
High tensile aluminium
FKM as standard - EPDM seals on request
Height
Width
200 mm
240 mm
7.87 inches
9.45 inches
225 mm
245 mm
8.86 inches
9.65 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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