Operator`s manual

Signametrics 8
2.0 Specifications and Feature Table
Function SMX4032 Instrumentation SMX4030 Standard
Number of differential
channels
35 35
Number of 8:1 groups four four
Scanning Arrangement Four groups of 8:1 differential Four groups of 8:1 differential
Thermal EMF offset < 1.0 V 10 V
Maximum Switching DC
Voltage
220 V 120 V
Maximum Switching AC
Voltage
250 V 120 V
Maximum Switching
Current
1 A 1 A
Maximum Switching
Current
1 A 1 A
Typical inter-channel
Capacitance
15pf 15pf
Insulation between open
contacts
> 1,000
M > 100 M
Insulation; contacts to coils
> 1,000
M > 100 M
Insulation; adjacent
channels
> 1,000
M > 100 M
No Load Life 10
8
1X10
7
Loaded Life @ 50Vdc,
0.1A
10
6
3X10
5
Trigger input
 
Trigger output
 
Thermocouple Cold
Junction Capable

Typical Closure Time 4 ms 12 ms
Typical Release Time [1] 2 ms 5 ms
Actuation Time [2] < 5 ms 15 ms
Actuation Time range 1ms to 850ms in 0.25ms steps 1ms to 850ms in 0.25ms steps
AutoScan Period Range 1ms to 850ms in 0.25ms steps 1ms to 850ms in 0.25ms steps
Available Configurations 2-wire, 4-wire, 6-wire, universal,
two-groups, four-groups
2-wire, 4-wire, 6-wire, universal, two-
groups, four-groups
Available Scan Groups A, B, C and D A, B, C and D
Isolated Relay Coil Drive

[1] Release time is applicable while in Universal Mode.
[2] Actuation time is the time it takes to open any closed relays, and close the selected relay.
Table 2-1. Specifications and Feature table.
2.1 Trigger Inputs and Outputs
2.1.1 External Hardware Trigger Inut
Input Characteristics
 Input LED (nominal 1.7V drop at 1mA) with a series 1k resistor.
 Input Signal requirements >2.5 V, < 10 V to activate. < 1V to deactivate.
 Isolation Optically Isolated from all other circuitry. Common line with Trigger Output.