Accessory Products - Measurement Computing USB-2404-UI User Manual

USB-2404-UI User's Guide
Terminal number
1
2
3
4
5
6
Note 4: Depending on the input mode, terminals 3 and 5 are either excitation signals or input signals.
Input mode
Voltage
Current
4-wire resistance
2-wire resistance
Thermocouple
4-wire RTD
3-wire RTD
Quarter-bridge
Half-bridge
Full-bridge

Accessory products

ACC-164
ACC-176
Distributed by MicroDAQ.com, Ltd.
Table 14. Signal names
Signal name
T+
T–
EX+/HI (Note 4)
HI
EX–/LO (Note 4)
LO
Table 15. Terminal assignments per input mode
Signal terminals
1 2
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
T+ T–
Table 16. Accessory products
6-position spring terminal connector block (quantity four)
Backshell for use with the ACC-164 6-position spring terminal connector blocks. Provides
strain relief and operator protection from high-voltage signals (quantity four).
20
www.MicroDAQ.com
Signal description
TEDS Data
TEDS Common
Positive excitation or input signal
Positive input signal
Negative excitation or input signal
Negative input signal
3 4
— HI
HI —
EX+ HI
HI —
— HI
EX+ HI
EX+ —
HI —
EX+ HI
EX+ HI
Specifications
5 6
LO —
LO —
EX– LO
LO —
LO —
EX– LO
EX– LO
LO —
EX– —
EX– LO
(603) 746-5524