Specifications; Operation; Preparation For Measurement - Extech Instruments 475040 User Manual

Specifications

Range 44 lbs, 20kg,196 Newtons
o
Accuracy (23 C) ±(0.5%rdg + 2 digits)
Resolution 0.01lbs, 0.01kg, 0.05 Newtons
Overload Capacity 30kg
Circuit Custom LSI microprocessor circuit
Zero adjust Button for Peak Hold and normal display zero
Display 5 digits, 0.4" (10 mm) LCD display
Update Rate Fast mode 0.2 secs; Slow mode 0.6 secs.
Overrange Indicator Displays "--------"
Zero Control Maximum capacity
Full Scale Deflection 2.00mm
Transducer type Load cell
Peak Hold Freezes Max reading on display
Operating Temperature 0 °C to 50 °C (32 °F to 122 °F).
Operating RH Max. 80% RH.
Power Supply 6x 1.5V AA (UM-3) size battery or DC 9V adapter (not included)
Weight 1.2 lbs/551g
Size 8.9 x 3.3 x 1.5" (227 x 83 x 39 mm)
Mounting Holes Located on rear of gauge for optional test stand
Accessories Tension adapter (hook), compression adapters (flat, cone, and
chisel), 5" extension rod, 6 x 1.5V AA batteries, case

Operation

Preparation for Measurement

1. The 475044 or 474040 automatically determines TENSION or COMPRESSION
(Push or Pull) force during use. Compression displays as a negative value and
Tension displays as a positive value.
2. Select units of measure (grams/kilograms, ounces/pounds, or newtons) via the
units select button.
3. Attach the desired adapter (tension – hook; compression.- flat, cone or chisel head)
to the Universal Sensing Head.
4. Select FAST or SLOW response. The FAST setting permits the capture of fast
measurement changes and the SLOW setting provides an averaged reading
display.
5. Zero the display before each measurement via the Zero button.
Note: The sensing head with adapter must be in line with the object being measured.
Avoid rotating the sensing head. Refer to the figure below.
Figure 1 ─ Correct and Incorrect Angles of Measurement
Acceptable
475044
176oz, 5000g, 49 Newtons
± (0.4%rdg + 1 digit)
0.05oz, 1g, 0.01 Newtons
10kg
Not Acceptable
475040 and 475044 Ver. 1.9 12/04
2
475040