Bahco IZO-DM, IZO-DFM manual Izo-D/Df, Izo-Dm/Dfm, = L1 x T L1 + B, = 17.86 Nm 18 Nm

IZO-D/DF

Tool body made from quality stainless steel with shatter proof display cover

Ranges programmable in Nm, Lbf.ft, Lbf.in

2 scroll keys for fast and easy operation

Security against accidental programme changes

Programmable torque value with +/- tolerance

Accuracy +/- 2%, +/- 1 digit

Quick battery change

Power save feature

Dust and splash proof protection

Low battery warning

Auto zero check on power up

Data and set value retention during battery exchange

Operating temperature range: 5°C to 42°C

Storage temperature range: -10°C to 50°C

IZO-DM/DFM

Additional features “Memory”

Memory capacity of up to 1000 values

Storage of fastener No., unit of measurement

Memory recall of stored data with fastener No.

PC software (Excel format)

B

Calculation of the compensating torque when using an extension

A torque wrench is typically adjusted and calibrated by applying a known force at the center of the handle at a distance L1 from the center of the driving square.

In some applications it is necessary to add an extension to the wrench, especially when some work has to be carried out in confined areas. In such cases it is necessary to compensate for this extension by reducing the program- med set torque on the wrench according to following formula:

C = L1 x T

L1 + B

L1= Distance from above table

B= Length of extension

T= Required torque

C= Compensated torque

L1=	335 mm
B =	40 mm
T =	20Nm
C =	?
C =	0.335 x 20	=	6.7	= 17.86
	0.335 + 0.040		0.375

C = 17.86 Nm (18 Nm)

L

L 1

L 2

Dimensions mm	L	L1	L2
IZO-D-30	405	300	370
IZO-DM-30	405	300	370
IZO-DF-30	390	295	360
IZO-DFM-30	390	295	360
Dimensions mm	L	L1	L2
IZO-D-135	450	345	410
IZO-DM-135	450	345	410
IZO-DF-135	445	345	395
IZO-DFM-135	445	345	395
Dimensions mm	L	L1	L2
IZO-D-200	535	430	495
IZO-DM-200	535	430	495
IZO-DF-200	560	450	495
IZO-DFM-200	560	450	495
Dimensions mm	L	L1	L2
IZO-D-340	650	540	605
IZO-DM-340	650	540	605
IZO-DF-340	670	565	605
IZO-DFM-340	670	565	605
Dimensions mm	L	L1	L2
IZO-DR-810	1230	1130	1126
IZO-DRM-810	1230	1130	1126

RS 232 serial link

CE

The new IZO-D/DF and IZO-DM/DFM Torque Wrenches from Bahco comply with all relevant standards such as DIN/ISO 6789, EN 26789 and US B107.14M.

They also comply with the EMC guideline 89/336/EU and are approved to carry the CE mark.