DayTronic 3770 Instruction Manual - Page 4

Browse online or download pdf Instruction Manual for Measuring Instruments DayTronic 3770. DayTronic 3770 16 pages. Dc strain gage panel meter

Print Page
Model 3770
2
C
O N N E C T I O N S
The Model 3770 I/O CONNECTIONS are via removable screw terminals which will accept wire sizes from
AWG 12 to 26. NOTE: The recommended transducer cabling would be eight wire, twisted pair, individually
shielded - wired as indicated (Fig. 6) Sense lines must be connected at the transducer (as recommended) or
at the 3770 screw terminals - as a minimum. Table 1 denotes screw terminal assignments
Table 1
Connector
Number
J1
J1
J1
J1
J1
J1
J1
J1
J1
J1
J2
J2
J2
J2
J2
J2
J2
J2
J3
J3
J3
J3
J3

Rear Panel Connections

Screw
Terminal
Terminal
Label
1
N/C
2
N/C
3
HOLD
4
TARE
5
TARE ENABLE
6
LOGIC COM
7
R CAL +
8
R CAL -
9
SHUNT
10
SHUNT
1
+ EXCITATION
2
- EXCITATION
3
+ SENSE
4
- SENSE
5
+ SIGNAL
6
- SIGNAL
7
CAL SENSE
8
SHIELD
1
VDC COM
2
V OUT SEL
3
V OUT FAST
4
4-20 mA COM
5
4-20 mA OUT
DC STRAIN GAGE PANEL METER
+
+
+
Function
No connection
No connection
Input Analog Hold command
Input Analog TARE command
External TARE enable input
Logic Common
Remote Positive SHUNT Command
Remote Negative SHUNT Command
External Shunt Resistor Connection
External Shunt Resistor Connection
+ Excitation Power
- Excitation Power
+ Sense excitation control
- Sense excitation control
+ Signal Input from sensor
- Signal Input from sensor
Calibration Sense for Shunt
Case Shield for cable termination
- Signal Output Voltage Common
+ Signal Output Voltage – Filter Select
+ Signal Output Voltage – 5 kHz Filter
Current Output Common
Current Output Signal
Page 3