DayTronic 3770 Gebruiksaanwijzing - Pagina 7

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Model 3770
2
C
O N N E C T I O N S
Fig. 6 - Transducer Cabling – DC Strain Gage- J2
Note:
Sense lines must be connected at the transducer or at the instrument for proper operation.
J3 - Analog Connections Provides analog outputs from the meter's signal conditioning area in the form
of ±5Vdc or ± 10 Vdc (selectable via the front panel controls) and 4-20 mA (or selectable 4-12-20 mA).
Full scale output is referenced to the display "range" selected (5000, 10000, or 20000). I.e. If range
10000 is selected, the analog output will be 5 Vdc or 10 Vdc, as determined by the front panel controls
(or 20 mA FS) when in the default/home position and the display reads 10000 (irrespective of the
decimal point).
J3 - Analog Output Connections
Pin 1
Voltage Common (- Signal out) reference for Pin 2 and Pin 3 + Signal Voltage Output.
Pin 2
Voltage Output Selected (+Signal out) reference to Pin 1. The Full Scale Voltage is determined by
the position of switch 1 -VDC on the Conditioner Controls. Output response is determined by the
position of switch 3-FIL and 4- FIL on the Analog Controls.
Pin 3
Voltage Output Fixed. (+ Signal out) reference to Pin 1. Full Scale Voltage is determined by the
position of switch 1-VDC of the Conditioner Controls. Filter response is fixed at the highest
analog signal response of 5 KHz.
Pin 4
4-20 mA Current Output Common (- Signal) reference for Pin 5 Current Output.
Pin 5
4-20 mA Current Output (+Signal) reference to Pin 4 Current Output Common. The Current
Output is selectable for 4 - 20 mA or 4-12-20 mA as determined by the position of switch 2 -mA
of the Conditioner Control switch(s) on the Front Panel.
DC STRAIN GAGE PANEL METER
+ EXCITATION
- EXCITATION
+ SENSE
- SENSE
+ SIGNAL
- SIGNAL
CAL SENSE
SHIELD
+ SIGNAL
Analog Voltage
Output
+/- 5 Vdc or +/- 10 Vdc with
- SIGNAL
fixed cutoff filter @ 5 KHz
Analog Voltage
+ SIGNAL
Output
+/- 5 Vdc or +/- 10 Vdc with
front panel selectable cutoff
- SIGNAL
filter @ 2/20/200 Hz
+ SIGNAL
Analog Current
Output
4-20mA, 4-12-20mA
- SIGNAL
at selected cutoff filter
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