Models
Model
No. Of
Set Points
3rd Party Certification(s)
A series – standard relays
SST-2000A
0
CSA: general certification LR 92270
ABS:
type approval
CE: 89/336/EEC, Light Industrial
CE: 72/23/EEC, Low Voltage Directive
SST-2200A
2
SST-2400A
4
H series – hermetically sealed relays
SST-2000H
0
CSA: Class I, Div. 2, Grp. D, LR 45322*
CE: 89/336/EEC, Light Industrial
CE: 72/23/EEC, Low Voltage Directive
SST-2200H
2
SST-2400H
4
* Approval contingent upon housing an SST-2000H series device in a CSA-certified
enclosure.
Features
Signal
Sources
Field-programmable for: sensors, including contact closure input,
magnetic pickups, ac generators, contact closures, photocells.
Input
Frequency
t
Full-scale values from 0–0.1 Hz (6 pulses/minute) to 0-20 kHz.
t
Field-adjustable range and sensitivity control.
Alarm Set
Points
0
SST-2000A/H (when only proportional output is required)
2
SST-2200A/H
4
SST-2400A/H
Alarm
Settings
Alarms are field-configurable for overspeed, underspeed,
energize, de-energize, latch, auto-reset.
Alarm
Disable
Disable all alarms (for startup conditions and special functions)
Alarm Reset
t
Momentarily reset all latched alarms
t
Permanently converts all latching alarms to auto-reset
Set Point
Verification
Integral VERIFY permits viewing and setting of set point value
without actuating the relays. Requires an external meter.
Proportional
Outputs
0–1 mA and 4–20 mA (standard)
0–5 Vdc or 0–10 Vdc (field-selectable)
Output
Power
Repeater output drives counters and self-powered tachometers.
Regulated 14 Vdc output powers active pickups, accessories, and
meters (e.g. DPM-105; MTH-103D; SPD-100L; LST-100L).
Output
Range
Current source up to 50 mAdc output always included.
4
Chapter 1
