Fluke 2680A User Manual page 225

Totalizer Input Specifications
The following table provides a summary of the Totalizer Input specifications. The
Totalizer Input is located on the Output Module connector, terminals Σ and GND.
The totalizer is enabled or disabled by an input on a separate digital input, terminal
Σen. The voltage, isolation, threshold, and hysteresis specifications are the same
for the totalizer and enable inputs.
Specification
Maximum Input Voltage
Minimum Input Voltage
Minimum Peak Voltage
Isolation
Threshold
Hysteresis
Input Debouncing
Maximum Transition Rate
Maximum Count for Totalizer
Digital Relay Specifications
The next table provides a summary of the relay specifications for the 8 relay
contact pairs on the output card. Relay contacts are located on the Output Module
connector, two pairs of contacts per relay, on terminals KnA and KnB (where n is
the relay number).
Specification
Maximum Contact Voltage
Minimum Peak Current
Isolation
Debounce time (typical)
Contact Operate/release Rate
Fuse
Table A-38. Totalizer Specification
30 V
-4 V
2 V
None (ac coupled)
1.4 V
500 mV
None or 1.75 ms (selectable)
5 kHz (Debounce disabled)
500 Hz (Debounce enabled)
4,294,967,295
Table A-39. DIGITAL I/O Relay Specification
250 V ac
2 A at 30 V dc, 0.4 A at 125 V ac (resistive)
1.5 kV between contacts and coil
5 ms
4 ms max
2 A, 250 V, 5mm x 20mm, Fast Blow Fuse
Appendices
Specifications
Characteristic
Characteristic
A
A-29