HBK DSE, Operating Manual

Page: 17 / 204

15
DSE
INSTALLATION
X1, sensor connection
The DSE has an 8-pin M12 plug (A-coded) for connecting the sensor. This is located on
the front of the DSE, and is labeled X1 ([1] in Fig. 5.1). The pin assignment is shown in
Fig. 5.2.
X1: Sensor connection, A-coded plug
1
Measurement
2 NC (Not connected)
3 Sense lead +
4 NC
5 Sense lead –
6 Bridge excitation
voltage –
7 Bridge excitation
v
8 Measurement signal
–
1 2
3
4
5
6
7
8
Fig. 5.2 X1, sensor connection, front view of plug
Important
You can connect strain gage sensors in a 6-wire configuration with a resistance between
250 and 4500 Ω. If you connect a load cell in a 4-wire configuration, it is essential to
connect “Sense lead +” to “Bridge excitation v” and “Sense lead -” to “Bridge
excitation voltage -”, such as by means of jumpers on the sensor or in the plug (Fig. 5.4).
Connection for strain gage full bridge in 6-wire configuration
3
2
1 4
rd
wh
gy
bk
gn
bl
Cable wire colors (HBM transducer):
bl = blue; gn = green; gy = gray; rd = red; bk = black; wh = white
Measurement
Sense lead
*
Bridge excitation v
Sense lead +
Bridge excitation voltage
*
Cable shields on
connector housing
Measurement signal
*
1 2
3
4
5
6
7
8
Fig. 5.3 6-wire connection
Connect the cable shields extensively to the connector housing.