Individual Set-Up Options; Setting The Operating Function; Measuring Range Adjustment - HBM ME250 S6 Operating Manual

ME250S6
4

Individual set-up options

Various settings can be modified on the measuring amplifier card. It is a
simple matter to carry out these adaptations yourself using the DIP switches
on the motherboard or even using externally connected switching elements,
or you can order them ex-factory.
NOTE:

4.1 Setting the operating function

Switch S21
In the "Zero" function the transducer signal is switched off and the "zero value"
of the measuring amplifier is present at the output. This function enables
amplifiers in measurement chains to be exchanged without having to
rebalance the bridge whilst the transducer is under load. All you need do is
note the balancing value of the amplifier concerned, and then if necessary set
up this value on another amplifier with the aid of P23 (P33), S22 (S32) and
S23 (S33).

4.2 Measuring range adjustment

Measuring range 1 is set up ex-factory. To activate measuring range 2 you
can use DIP switch S24/4 (S34/4) or an external switching element.
Measuring range
"
Meas. range 1 =
(factory settings)
"
Meas. range 2 =
You can preset the measuring ranges in the range "0.2 mV/V to "4 mV/V
when U = 5 V or "1 mV/V to "20 mV/V when U
B
switches S26 (S36) and S27 (S37) as shown in the table. For fine adjustment
see Chapter 3.3.
A0827-4.1 en/de
Values in brackets (bold) apply to Channel 2.
Zero
or connect pin 21a (1a) to pin 15c
or connect pin 25a (2a) to pin 15c
S 24/4 (S34/4)
1 mV/V
0.2 mV/V
Measure
From meas. range 1 to
meas. range 2;
join 25c (3a) and 15c
= 1 V with the aid of DIP
B
13
Calibrate
External
−
HBM